Page 1 Ihr Ansprechpartner / Your Partner: Digital Power Meter dataTec AG E-Mail: info@datatec.eu >>> www.datatec.eu GPM-8320/8330 USER MANUAL Rev. A ISO-9001 CERTIFIED MANUFACTURER...
Page 2 This manual contains proprietary information, which is protected by copyright. All rights are reserved. No part of this manual may be photocopied, reproduced or translated to another language without prior written consent of Good Will company. The information in this manual was correct at the time of printing. However, Good Will continues to improve products and reserves the rights to change specification, equipment, and maintenance procedures at any time without notice.
Page 3: Table Of Contents
TABLE OF CONTENTS Table of Contents SAFETY INSTRUCTIONS ..........5 GETTING STARTED ............10 Characteristics ............11 Appearance .............. 15 Set Up ..............25 BASIC SETTING ............. 27 Setting up measurement range ........ 29 Setting up measurement status ....... 33 Setting up System status .........
Page 4 GPM-8320/8330 User Manual APPENDIX ..............228 Specifications ............229 Status system ............239 Dimensions ............243 Certificate Of Compliance ........244 Power measurement ..........245...
Page 5: Safety Instructions
Warning: Identifies conditions or practices that WARNING could result in injury or loss of life. Caution: Identifies conditions or practices that CAUTION could result in damage to the GPM-8320/8330 or to other properties. DANGER High Voltage Attention Refer to the Manual Protective Conductor Terminal...
Page 6 GPM-8320/8330 User Manual Do not dispose electronic equipment as unsorted municipal waste. Please use a separate collection facility or contact the supplier from which this instrument was purchased.
Page 7 SAFETY INSTRUCTIONS Safety Guidelines Make sure that the voltage input level does not General Guideline  exceed AC600V. CAUTION Make sure the current input level does not  exceed 20A. Do not place any heavy object on the  instrument. Avoid severe impact or rough handling that can ...
Page 8 GPM-8320/8330 User Manual (Note) EN 61010-1:2010 specifies the measurement categories and their requirements as follows. The GPM-8320/8330 falls under category II 600V.  Measurement category IV is for measurement performed at the source of low-voltage installation.  Measurement category III is for measurement performed in the building installation.
Page 9 SAFETY INSTRUCTIONS (Note) EN 61010-1:2010 specifies the pollution degrees and their requirements as follows. The GPM-8320/8330 falls under degree 2.  Pollution refers to “addition of foreign matter, solid, liquid, or gaseous (ionized gases), that may produce a reduction of dielectric strength or surface resistivity”.
Page 10 GPM-8320/8330............15 Main Display Overview ............18 Rear Panel ................21 GPM-8330 ..............21 GPM-8320 ..............21 GPM-8330 (without GPIB +DA 12 interface) ..22 Set Up ..............25 Power Up ................25 Connect the wires to the GPM-8320/8330 ......26...
Page 11: Getting Started
It equips with a color TFT-LCD screen and also multiple graph displays which are very convenient for reading the measurement results. The GPM-8320/8330 has become a reliable power measurement instruments because of its simple operation, excellent performance, user-friendly graph displays and automatic measurement interface.
Page 12 GPM-8320/8330 User Manual log and screenshot. Auto range function for integration  measurement. Full five-digit measurement. Features  Voltage measurement range: 15V ~ 1000V or  automatic switching Current measurement range: 0.5A ~ 20A or  automatic switching 3-channel simultaneous display screen and total ...
Page 13: Accessories
Description Q’ty Accessories User Manual CD 82GW1SAFE0M01 Safety Instruction Sheet Region dependent Power Cord GTL-209 Test leads (For GPM-8330) GTL-209 Test leads (For GPM-8320) GTL-212 Test leads (For GPM-8330) GTL-212 Test leads (For GPM-8320) GPM-002 Terminal Cover Optional Part number...
Page 14: Package Contents
GPM-8320/8330 User Manual Package Contents Check the contents before using the instrument. Opening the box Main unit Power cord x1 (region Contents   (single unit) dependent) Test lead sets  (depends on model) User manual CD  Terminal Cover Safety instruction ...
Page 15: Appearance
GETTING STARTED Appearance Front Panel GPM-8320/8330 Turns On or Off the main 1 Power Key power. For the power up sequence, see page 25. The 5 soft keys have varied functions 2 Soft keys from the OSD (On-Screen Display) options, individually, per different settings.
Page 16 GPM-8320/8330 User Manual Captures the current screenshot or 4 Hardcopy key saves the data log for reading. For details, refer to page 65. It can simultaneously display voltage, 5 Waveform key current and power waveforms. Display one channel at a time.
Page 17 GETTING STARTED I-Range key, up/down arrow keys and Enter key can be used together to select a current range or auto range measurement mode. Also, press and hold the I-Range key to toggle between manual and auto range setting. See page 29. Press this button to display the maximum measurement reading.
Page 18: Main Display Overview
GPM-8320/8330 User Manual Main Display Overview 9 10 11 12 13 14 Status icon Description No. Item Voltage Range V-A 15V Voltage measurement range. Example here range is 15V. V-Auto means that Voltage Auto Range is turned on. Current Range I-A 2A Current measurement range.
Page 19 GETTING STARTED AC+DC Measurement mode Mode (AC, DC, AC+DC, V-MEAN) Update Data update rate Date Update 0.25s (0.1/0.25/0.5/1/2/5/10/20/Auto) Rate Crest Factor (3/6/6A) Crest Factor Remote control mode (On/Off) Remote The icon will lit when any external Ratio State Scaling magnification (voltage, current, power) is activated, MAX Hold Retain and display the maximum Maximum...
Page 20 GPM-8320/8330 User Manual Display secondary function menu 20 Secondary menus To navigate the secondary function menu, use left and right arrow keys alternately. The arrow keys are loopback, which means, for example, when it stops at Graph, press the right arrow key to move to Enlarge in a promptly loopback manner.
Page 21: Rear Panel
20A MAX 20A MAX 20A MAX 240V 50 / 60Hz 35VA MAX TO AVOID SHOCK, REMOVE CURRENT CURRENT CURRENT WARNING INPUTS BEFORE OPENING. GPM-8320 VOLTAGE VOLTAGE VOLTAGE Digital IO DA12 1000V MAX 1000V MAX 1000V MAX EXT2 EXT1 EXT2 EXT1...
Page 22: Gpm-8330 (Without Gpib +Da 12 Interface)
GPM-8320/8330 User Manual GPM-8330 (without GPIB +DA 12 interface) VOLTAGE VOLTAGE VOLTAGE VOLTAGE 1000V MAX 1000V MAX 1000V MAX 1000V MAX EXT2 EXT1 EXT2 EXT1 EXT2 EXT1 2V MAX 10V MAX 2V MAX 10V MAX 2V MAX 10V MAX RS232...
Page 23 GETTING STARTED Accepts a LAN for remote control. 6 LAN Port For remote control details, see page 140. Voltage/Current input 7 Voltage/Current VOLTAGE VOLTAGE terminals is used to connect input terminal the main measurement signals. 1000V MAX 1000V MAX The number on the left side EXT2 EXT1 means the number of channel.
Page 24: Gpm-8320
 The maximum input voltage are 10 V and 2V for EXT1 and EX2 terminals of the rear panel of the GPM-8320/8330. Do not input exceeded voltage, otherwise it will burn the device. Always use the supplied cable for ...
Page 25: Set Up
GETTING STARTED Set Up Power Up 1. Ensure the AC voltage is 100~ 240V. Steps 2. Connect the power cord to the AC voltage input. Make sure the ground connector on the power Note cord is connected to a safety ground. This will influence the measurement accuracy.
Page 26: Connect The Wires To The Gpm-8320/8330
GPM-8320/8330 User Manual Connect the wires to the GPM-8320/8330 Two separate wires is used to connect the GPM- Background 8320/8330, so voltage and current measurement are isolated and don’t interfere with each other. Connection VOLTAGE VOLTAGE diagram 1000V MAX 1000V MAX...
Page 27: Basic Setting
BASIC SETTING ASIC SETTING Setting up measurement range ........ 29 Auto Range ................31 Setting up measurement status ....... 33 Setting up synchronization source ........33 Setting up line filter ............. 34 Setting up frequency filter ........... 35 Setting up crest factor ............36 Setting up auto-zero function ..........
Page 28 GPM-8320/8330 User Manual Setting up Numeric data Form........... 79...
Page 29: Setting Up Measurement Range
BASIC SETTING Setting up measurement range To get the accurate measurement results, you should set an appropriate measurement range before you perform measurement task. Set voltage range 1. Press V-Range button. The V- Range field turns to bluish. 2. Use up and down arrow keys to select the desired range.
Page 30 GPM-8320/8330 User Manual 2. Use up and down arrow keys to select the desired range. 3. Press Enter button to confirm your selection. Available range Crest Factor AUTO, 0.5A, 1A, 2A, 5A, 10A and 20A is 3: Crest Factor AUTO, 250mA, 0.5A, 1A, 2.5A, 5A and...
Page 31: Auto Range
BASIC SETTING Auto Range The range is automatically switched according to the voltage and current of input signal. Range is shift up The range is shifted up when either of the following conditions is met. Vrms or Irms exceeds the measurement range ...
Page 32 GPM-8320/8330 User Manual Example To begin with, the measured Irms1 value is within the current range of I-A 1A. The measured Irms1 (1.3601A) exceeds the I-A 1A by 130%, so the range is shifted up to 2A automatically. The measured Irms1 (199.78mA) is less than 30% of the I-A 1A, so the range is shifted down to 0.5A automatically.
Page 33: Setting Up Measurement Status
BASIC SETTING Setting up measurement status Setting up synchronization source 1. Press Setup button. Steps 2. Press Enter button. 3. Press down arrow key to move cursor to the Sync Source field. 4. Use soft keys to select and confirm the desired option.
Page 34: Setting Up Line Filter
GPM-8320/8330 User Manual Setting up line filter 1. Press Setup button. Steps 2. Press Enter button. 3. Press down arrow key to move cursor to the Line Filter field. 4. Use soft keys to select and confirm the desired option.
Page 35: Setting Up Frequency Filter
BASIC SETTING Setting up frequency filter 1. Press Setup button. Steps 2. Press Enter button. 3. Press down arrow key to move cursor to the Frequency Filter field. 4. Use soft keys to select and confirm the desired option. Option Turn on the frequency filter function, which is inserted into frequency measurement input circuit and affects frequency...
Page 36: Setting Up Crest Factor
GPM-8320/8330 User Manual Setting up crest factor 1. Press Setup button. Steps 2. Press Enter button. 3. Press down arrow key to move cursor to the Crest Factor field. 4. Use soft keys to select and confirm the desired option.
Page 37: Setting Up Auto-Zero Function
BASIC SETTING Setting up auto-zero function 1. Press Setup button. Steps 2. Press Enter button. 3. Press down arrow key to move cursor to the Auto Zero field. 4. Use soft keys to select and confirm the desired option. Option Auto-zero function is activated once per hour or when range is switched.
Page 38: Setting Up Method Of Calculating Harmonics
GPM-8320/8330 User Manual Setting up method of calculating harmonics 1. Press Setup button. Steps 2. Press Enter button. 3. Press down arrow key to move cursor to the Harmonics field. 4. Use soft keys to select and confirm the desired option.
Page 39 BASIC SETTING 6. Use soft keys to increase or decrease the order number. Option 1-50 Set the upper limit of measured harmonic order within the range from 1 to 50. Default value 7. Press right arrow key to move Steps cursor to Sync field.
Page 40: Setting Up Data Update Rate
GPM-8320/8330 User Manual Setting up data update rate 1. Press Setup button. Steps 2. Press Enter button. 3. Press down arrow key to move cursor to the Data Update Rate field. 4. Use soft keys to select and confirm the desired option. Press the “More”...
Page 41 8. Use soft keys to select and confirm the desired option. Option Sync Source V1, V2, V3, I1, I2, I3 (For GPM-8330) V1, V3, I1, I3 (For GPM-8320) Default value Sync function is only available when Auto is selected Note...
Page 42: Setting Up Measure Storage
GPM-8320/8330 User Manual Setting up measure storage 1. Press Setup button. Steps 2. Press Enter button. 3. Press down arrow key to move cursor to the Measure Storage field. Measure Storage function is Not available when Auto Note is selected for Data Update Rate.
Page 43 BASIC SETTING 6. Use soft keys to increase or decrease the interval. Option The setting range for Interval is from 00:00:00 to 99:59:59. Default value 00:00:00 When it is set 00:00:00, the interval for measure Note storage will be synchronized with the designated Data Update Rate.
Page 44: Setting Up Average Function
GPM-8320/8330 User Manual Setting up average function 1. Press Setup button. Steps 2. Press Average soft key. 3. Press Enter button. 4. Press down arrow key to move cursor to the State field. 5. Use soft keys to select and confirm the desired option.
Page 45 BASIC SETTING 7. Use soft keys to select and confirm the desired option. Option Linear With the designated linear count, it is used to compute linear averages. Exponent With the specified attenuation count, numeric data will be averaged exponentially. Default value Linear 8.
Page 46: Setting Up The Voltage And Current Skipping Configuration46
GPM-8320/8330 User Manual Setting up the voltage and current skipping configuration 1. Press Setup button. Steps 2. Press V / I Range soft key. 3. Press Enter button. 4. Press down arrow key to move cursor to the Mode field.
Page 47 BASIC SETTING 7. Use soft keys to select and confirm the desired option. Option It is able is skip certain measurement range(s) that are not used by turning on this feature. It can reduce measured data loss which happens while ranges are switched.
Page 48 GPM-8320/8330 User Manual 10. Press down arrow key to move Steps cursor to Peak Over field for V- Range and I-Range, respectively. 11. Use soft keys to select and confirm the desired option. Press the More soft key to toggle among pages for Peak Over of V-Range and I-Range.
Page 49: Setting Up The Skipping Configuration For External
BASIC SETTING Setting up the skipping configuration for external 1. Press Setup button. Steps 2. Press V / I Range soft key. 3. Press Enter button. 4. Press down arrow key to move cursor to Skipping Config field. 5. Use soft keys to select and confirm the desired option.
Page 50 GPM-8320/8330 User Manual 9. Press down arrow key to move cursor to each field of either External Sensor 1 or External Sensor 2. 10. Use soft keys to enable or disable the skipping function for each range. Option The box of range will be checked when the range is enabled for skipping function.
Page 51 BASIC SETTING Option When the occurrence of peak over-range happens in Auto range mode for external input, user is able to define a measurement range to switch to. The available options for each mode are listed below. When it is under CF3 mode for External Sensor 1. Off/2.5V/5V/10V When it is under CF6/6A mode for External Sensor 1.
Page 52: Setting Up The Element For Ratio
GPM-8320/8330 User Manual Setting up the Element for Ratio 1. Press Setup button. Steps 2. Press Ratio soft key. 3. Press Enter button. 4. Press down arrow key to move cursor to the Element field. 5. Use soft keys to select and confirm the desired option.
Page 53: Setting Up The Vt Ratio State
BASIC SETTING Setting up the VT ratio state 1. Press Setup button. Steps 2. Press Ratio soft key. 3. Press Enter button. 4. Press down arrow key to move cursor to the VT Ratio State field. 5. Use soft keys to select and confirm the desired option.
Page 54: Setting Up The Ct Ratio State
GPM-8320/8330 User Manual 7. Use soft keys to increase or decrease coefficient of VT ratio. Option The setting range for VT Ratio is from 0000.001 to 9999.999. Default value 0001.000 Setting up the CT ratio state 1. Press Setup button.
Page 55: Setting Up The Power Ratio State
BASIC SETTING Option Turn on the CT (Current Transformer) ratio calculation function and the CT status icon on the display lights up in green. Turn off the CT ratio calculation function. Default option 6. Press down arrow key to move Steps cursor to Ratio field.
Page 56 GPM-8320/8330 User Manual 5. Use soft keys to select and confirm the desired option. Option Turn on the power ratio calculation function and the SF status icon on the display lights up in green. Turn off the power ratio calculation function.
Page 57: Setting Up The External Sensor Input Terminal
BASIC SETTING Setting up the external sensor input terminal 1. Press Setup button. Steps 2. Press External soft key. 3. Press Enter button. 4. Press down arrow key to move cursor to the External Sensor State field. 5. Use soft keys to select and confirm the desired option.
Page 58 GPM-8320/8330 User Manual 6. Press down arrow key to move Steps cursor to the Ratio Element field. 7. Use soft keys to select and confirm the desired option. Select ALL and then press OK. Option Default option 8. Press down arrow key to move...
Page 59: Saving And Loading The Setup Parameters
BASIC SETTING Default value Ext1 0001.000 Ext2 0010.000 In order to enable range skipping configuration for Note external (page 49), it is required to enable external input function first. Saving and loading the setup parameters 1. Press Setup button. Steps 2.
Page 60 GPM-8320/8330 User Manual 7. Press down arrow key to move Steps cursor to File field. 8. Use soft keys to select and confirm the desired memory set followed by clicking Ok soft key to confirm the Save or Load action.
Page 61: Setting Up The D/A Output Configuration
BASIC SETTING Setting up the D/A output configuration 1. Press Setup button. Steps 2. Press Page 1/2 soft key. 3. Press D/A soft key. 4. Press Enter button. Since the DA12 connector is an optional accessory, if Note it is not available on your unit, the D/A soft key will be disabled in grey color as the figure below shown.
Page 62 GPM-8320/8330 User Manual Option Normal The D/A output parameters for each channel will be changed to the default setting of Normal mode as follows. Normal Mode Default value For example VHzΣ Integrator The D/A output parameters for each channel will be changed to the default setting of Integrator mode as follows.
Page 63 BASIC SETTING Option In the integrated values of D/A output, GPM- 8320/8330 presumes a rated value is received continuously over the designated time to be 100%, and assigns the value to 5V. The setting range for time of rated integrator is from 0000:00:00 to 9999:59:59.
Page 64 GPM-8320/8330 User Manual Current frequency Voltage peak Current peak Total watt hour Positive watt hour Negative watt hour Total ampere hour Positive ampere hour Negative ampere hour 0V D/A Output 11. Also, press arrow keys to move Steps cursor to channel number of CH1 through CH12 field, respectively.
Page 65: Setting Up The Hardcopy And Log Configuration
BASIC SETTING Setting up the hardcopy and log configuration 1. Press Setup button. Steps 2. Press Page 1/2 soft key. 3. Press Hardcopy soft key. 4. Press Enter button. 5. Press down arrow key to move cursor to the Type field. 6.
Page 66 GPM-8320/8330 User Manual 8. Use soft keys to select and confirm the desired action. Option Turn on overwrite function so that the existed file within the USB disk will be overwritten when saving action is executed. By turning off overwrite function, a new...
Page 67: Setting Up The Math Configuration
÷B), which are based on the four elementary arithmetic (addition, subtraction, multiplication and division), can be executed by GPM-8320/8330 with 2 select items out of 5 variables (V, I, P, VA, VAR). The result of computation will be a value without unit.
Page 68 GPM-8320/8330 User Manual 8. Use soft keys to select and confirm the desired option. Option Voltage Current Active power Apparent power Reactive power Default option 9. Press right arrow key to move Steps cursor to channel number of Item A field.
Page 69 BASIC SETTING 11. Press down arrow key to move Steps cursor to Item B field. 12. Use soft keys to select and confirm the desired option. Option Voltage Current Active power Apparent power Reactive power Default option 13. Press right arrow key to move Steps cursor to channel number of Item B field.
Page 70: Setting Up System Status
GPM-8320/8330 User Manual Setting up System status System information screen 1. Press soft key to select System Steps function. 2. Press Enter button to Enter SYSTEM INFORMATION screen where detailed information including Model, Serial Number, MCU/FPGA Version and MAC Address of the unit is displayed.
Page 71 5. Use soft keys along with left and right arrow keys to input the password followed by pressing Enter button twice to enter the Calibration page. System information for GPM-8320 System information for GPM-8330 Default option 99999 Refer to qualified technician and service manual for Note the calibration procedure.
Page 72: System Config1 Screen
GPM-8320/8330 User Manual SYSTEM CONFIG1 screen 1. Press soft key to select System Steps function. 2. Press Config1 soft key to Enter SYSTEM CONFIG1 setting screen. Setting up power on status Continue the following setting from SYSTEM Background CONFIG1 setting screen 1.
Page 73 BASIC SETTING 3. Use soft keys to select and confirm the desired option. Option Previous The status of unit on powering on is set to the status before the last shutdown. Default The status of unit on powering on is set to the factory default status.
Page 74: Setting Up Brightness
GPM-8320/8330 User Manual Setting up brightness Continue the following setting from SYSTEM Background CONFIG1 setting screen 1. Press Enter button. Steps 2. Press down arrow key to move cursor to Brightness field. 3. Use soft keys to increase or decrease the brightness level...
Page 75: Setting Up Remote Interface
BASIC SETTING 3. Use soft keys to select and confirm the desired option. Option A short sound is heard from speaker of unit when pressing the keys on the front panel. No sound from speaker of unit when pressing the keys on the front panel. Default option Setting up remote interface Continue the following setting from SYSTEM...
Page 76 GPM-8320/8330 User Manual If interface is set to RS232, the Baud Option RS232 Rate and the Terminator fields can be selected. For details about configuring RS 232 interface, please see page 136. For details about configuring USB interface, please see page 135.
Page 77: System Config2 Screen
BASIC SETTING If interface is set to LAN, the IP model is can be selected from “Manual” and “DHCP”. For details about configuring LAN interface, please see page 140. SYSTEM CONFIG2 screen 1. Press soft key to select System Steps function.
Page 78: Setting Up Scpi Identity
GPM-8320/8330 User Manual Setting up SCPI identity Continue the following setting from SYSTEM Background CONFIG2 setting screen 1. Press Enter button. Steps 2. Press down arrow key to move cursor to SCPI Type field. 3. Use soft keys to select and confirm the desired option.
Page 79 BASIC SETTING Setting up Numeric data Form Continue the following setting from SYSTEM Background CONFIG2 setting screen 1. Press Enter button. Steps 2. Press down arrow key to move cursor to Displaying Numeric data Form field. 3. Use soft keys to select and confirm the desired option.
Page 80: Measurement And Other Functions
MEASUREMENT AND OTHER FUNCTIONS EASUREMENT AND OTHER FUNCTIONS Measurement function ..........81 Introduction to measurement parameters......81 Measurement display pages overview ....... 82 Setting measurement parameters ........86 Changing the numeric display ..........91 Changing the standard and simple display modes ... 93 Other functions ............
Page 81: Measurement Function
MEASUREMENT AND OTHER FUNCTIONS Measurement function The GPM-8320/8330 provides a wide range of basic electricity and power measurement functions. It equips with different accurate measurement parameters for accurately measuring the voltage, current, power, DC/AC/AC + DC/V-MEAN, power factor, harmonics, frequency, etc. The input impedance of the device is 2MΩ, the maximum input voltage is 1000V, 5m only.
Page 82: Measurement Display Pages Overview
GPM-8320/8330 User Manual Reactive power Power Factor Phase Angle Frequency IHz, VHz Voltage Peak V+pk, V-pk Current Peak I+pk, I-pk Active Power Peak P+pk, P-pk Total Harmonic Distortion THDI, THDV Crest factor CFV, CFI Mathematical Computation MATH Maximum Current Ratio...
Page 83 MEASUREMENT AND OTHER FUNCTIONS Page 3 Page 3 Page 4 Page 4 It is available to set measurement parameters Note for each page. Refer to page 86 for more details. 2. When it is under “Element 1, 3” or Multiple “Element 1, 3 &...
Page 84 GPM-8320/8330 User Manual It is available to set measurement parameters for Note each page. Refer to page 86 for more details. Page 1 Element 1, 3 Page 1 display mode (For GPM-8320) Page 2 Page 2 Page 3 Page 3...
Page 85 MEASUREMENT AND OTHER FUNCTIONS Element 1,3 & Σ Page 1 Page 1 display mode Page 2 Page 2 Page 3 Page 3 Page 4 Page 4...
Page 86 GPM-8320/8330 User Manual Page 1 Element 1 – 3 Page 1 display mode (For GPM-8330) Page 2 Page 2 Page 3 Page 3 Page 4 Page 4...
Page 87 MEASUREMENT AND OTHER FUNCTIONS Element 1 – 3 & Σ Page 1 Page 1 display mode Page 2 Page 2 Page 3 Page 3 Page 4 Page 4...
Page 88: Setting Measurement Parameters
GPM-8320/8330 User Manual Setting measurement parameters 1. Press the Parameter soft key. Setting parameter in single channel display 2. The 1st measurement parameter will be highlighted in green. 3. Press up, down, left and right arrow keys to select other desired measurement parameter.
Page 89 MEASUREMENT AND OTHER FUNCTIONS 4. Use up and down arrow keys to switch display options followed by pressing Enter button to confirm the selected parameter. 5. User is able to apply the previous same process for each measurement parameter. There are up to 2 major and 8 minor measurement parameters to be switched.
Page 90 GPM-8320/8330 User Manual 7. Also, when pressing up, down, left Steps to set and right arrow keys to select other channels measurement parameter, it is available to assign channel number of each measurement parameter. 8. Press Enter button to set desired...
Page 91: Changing The Numeric Display
MEASUREMENT AND OTHER FUNCTIONS Changing the numeric display 1. Under the single channel display Steps mode, press the Numeric soft key. 2. The screen is changed to the “Element 1 – 3” display mode in which the 8 measurement parameters of each channel (1 through 3) are shown.
Page 92 GPM-8320/8330 User Manual 4. By pressing the Numeric soft key repeatedly to navigate through 3 display modes at any time. Single channel Element 1 – 3 Element 1 – 3 & Σ...
Page 93: Changing The Standard And Simple Display Modes
MEASUREMENT AND OTHER FUNCTIONS Changing the standard and simple display modes 1. In the standard display mode, press Steps soft key to select Enlarge function. 2. The screen is changed to the simple display mode. The simple mode covers 4 major measurement parameters deriving from the top 4 parameters of standard mode as shown below.
Page 94: Other Functions
GPM-8320/8330 User Manual Other functions Introduction to other functions Mode Max. Hold KeyLock Display Hold Function name Button Description When the MAX Hold button is MAX Hold pressed, the MAX Hold status icon will light in red in the LCD display to indicate that this function is activated.
Page 95 MEASUREMENT AND OTHER FUNCTIONS This button is used to select function Enter or confirm selection. When the Hold button is pressed, the Hold Hold status icon will light in red in the LCD display to indicate that this function is activated. To deactivate this function, press this button again.
Page 96 GPM-8320/8330 User Manual Press the Mode button to select Mode measurement mode. There are 4 measurement modes. AC+DC: Displays all the  components of measurement signal. DC: Displays the DC part of the  measurement signal. AC: Displays the AC part of the ...
Page 97: Integration Measurement Function
MEASUREMENT AND OTHER FUNCTIONS Integration measurement function Setting up Integrator measurement 1. Press soft key to select Integrator Steps function. 2. The integrator measurement screen is displayed. 3. Press soft key to select Set ley to Select integrator enter integrator measurement measurement mode setting screen.
Page 98 GPM-8320/8330 User Manual 4. Press Enter button to enter Mode field. Use up and down arrow keys to toggle between Manual, Standard and Continuous mode. Press Enter button again to confirm your selection. If you select Manual mode, the Set Time become disable and displayed in gray.
Page 99 MEASUREMENT AND OTHER FUNCTIONS 5. Press down arrow key to move to Select integrator Function field in the integrator measurement function measurement setting screen. 6. Press Enter button to enter Function field. Use up and down arrow keys to toggle between Ampere Hours and Watt Hours.
Page 100 GPM-8320/8330 User Manual If you select Watt Hours, the measured value in the bottom half section will be displayed in “WP1”. 7. Press down arrow key to move to Select integrator the bottom half section where measurement parameter measured values are displayed.
Page 101: Introduction To Integrator Parameters
MEASUREMENT AND OTHER FUNCTIONS Press left or right arrow keys to move to the 2nd minor parameter followed by using the steps above to select a preferred parameter. Introduction to integrator parameters Parameter name Description Standard Mode  It allows user to define a period of Set Time for integrator measurement, which ranges from 1 second to 9999 hours, 59 minutes and 59 seconds.
Page 102 GPM-8320/8330 User Manual Watt Hours Function  WP1: Total power WP+1: Positive total power WP-1: Negative total  power P(avg)1: Average power Ampere Hours  q1: Total mAh q+1: Positive total mAh q-1: Negative total mAh q(avg)1: Average current It indicates that elapsed time of integrator Test time measurement.
Page 103 MEASUREMENT AND OTHER FUNCTIONS Stop  Integrator measurement has been stopped manually.  Timeout  The time for running integrator measurement is up.  Reset  The integrator measurement status is cleared.  For Watt Hours Measured value parameters Positive total power: WP+ Negative total power: WP- Average power: P(avg) Voltage: Vdc (DC voltage), Vac (AC voltage),...
Page 104: Using The Integrator Function
GPM-8320/8330 User Manual For Ampere Hours Total mAh: q Positive total mAh: q+ Negative total mAh: q- Average Current : q(avg) Voltage: Vdc (DC voltage), Vac (AC voltage), Vrms (AC+DC voltage), Vmn (Voltage mean) Current: Idc (DC current), Iac (AC current), Irms...
Page 105 MEASUREMENT AND OTHER FUNCTIONS 2. To stop integration function, press the Stop button in the front panel. 3. Press the Reset button in the front panel to clear integrator. 1. Set integrator measurement time before using Standard mode integrator function. 2.
Page 106 GPM-8320/8330 User Manual 1. Set integrator measurement time before using Continuous integrator function. mode 2. Other steps are same as running in manual mode. When integrator performing, the test time will increase until the set integrator measurement time (a cycle) and repeat the cycle indefinitely until the Stop button is pressed by user.
Page 107: Graph Measurement Function
MEASUREMENT AND OTHER FUNCTIONS Graph measurement function The GPM-8320/8330 provides the professional graph measurement function via which user can have a well grip over fluctuations of measured values in waveform and harmonic in bar and list graphs in a friendly user interface. It is available, under the graph mode, to adjust both voltage and current ranges in real time and change the display modes along with relevant parameters with ease.
Page 108 GPM-8320/8330 User Manual 3. Press Enter button to enter Display field. Use up and down arrow keys to toggle between options. Press Enter button again to confirm your selection. Option V, I, P Three items including the measured voltage, current and power are displayed...
Page 109 MEASUREMENT AND OTHER FUNCTIONS 4. Press down arrow key to move to Select waveform Time Div field in the waveform display time division setting section. 5. Press Enter button to enter Time Div field. Use up and down arrow keys to toggle between options. Press Enter button again to confirm your selection.
Page 110 GPM-8320/8330 User Manual 6. Press right arrow key to move to Select waveform Sync field in the waveform setting display sync source section. 7. Press Enter button to enter Sync field. Use up and down arrow keys to toggle between options. Press Enter button again to confirm your selection.
Page 111 MEASUREMENT AND OTHER FUNCTIONS 8. Press right arrow key to move to Select waveform Zoom (V) field in the waveform display zoom magnification setting section. 9. Press Enter button to enter Zoom (V) field. Use up and down arrow keys to toggle between options. Press Enter button again to confirm your selection.
Page 112 GPM-8320/8330 User Manual Zoom 1: Zoom 2: Zoom 3: Frequency over When frequency of either voltage or current is beyond limit the limit, which varies per set Time Div, the warning message in the upper-right corner will be shown to alarm user as the figures below.
Page 113 MEASUREMENT AND OTHER FUNCTIONS F_I_O: Frequency Current Over F_V_I_O: Frequency Voltage & Current Over Correlation of Limit Frequency, Time Div and Update Time Take few examples below that derive from the table above for further descroptions.  When Update Time is set 20s, the range of Time Div is from 5ms to 1s and the available Frequency is up to 50Hz.
Page 114 GPM-8320/8330 User Manual  The maximum frequency for Graph mode is Note up to10kHz.  When the measured frequency of either voltage (VHz) or current (IHz) surpasses the available frequency, which is based on the set Time Div, the warning message will be shown...
Page 115: Setting Up Waveform Graph Parameter And Element
MEASUREMENT AND OTHER FUNCTIONS Setting up waveform graph parameter and element 1. Press the Waveform key on the Steps front panel of unit to enter the waveform page. 2. Press the Parameter soft key. 3. Press Enter button to enter the 1st parameter.
Page 116 GPM-8320/8330 User Manual 4. Press down arrow key to move cursor to the 2nd parameter and repeat the above steps to set up. Also, repeat the same steps for the 3rd and 4th parameters. Option Voltage Vac (AC) Vdc (DC)
Page 117 MEASUREMENT AND OTHER FUNCTIONS Total Harmonic THDI, THDV Distortion Crest factor CFV, CFI Mathematical MATH Computation Maximum Current Ratio MCR Default option Default options are based on the Parameter settings from the standard display mode. 5. Press the ESC key twice on the front panel of unit.
Page 118: Setting Up Harmonics Bar Graph Measurement And Element
GPM-8320/8330 User Manual Element 3 Setting up Harmonics bar graph measurement and element 1. Press the Harmonic key on the Steps front panel of unit to enter the harmonics bar graph display screen where measured values of each harmonic order are shown in the histogram-like bar display.
Page 119 MEASUREMENT AND OTHER FUNCTIONS 3. Press Enter button to enter Display Select harmonics Mode field. Use up and down display mode arrow keys to toggle between options. Press Enter button again to confirm your selection. Option The THDV measured factor will be displayed in the right-side section in yellow and also shown in the left-side bar graph.
Page 120 GPM-8320/8330 User Manual 5. Press Enter button to enter Order No. field. Use up and down arrow keys to toggle between options. Press Enter button again to confirm your selection. Option 1 - 50 Select a measured harmonic order with...
Page 121 MEASUREMENT AND OTHER FUNCTIONS 7. Press Enter button to enter HRM field. Use up and down arrow keys to toggle between options. Press Enter button again to confirm your selection. Option Default option 8. Press the ESC key twice on the front panel of unit.
Page 122: Setting Up Harmonics List Graph Measurement
GPM-8320/8330 User Manual Element 1 Element 2 Element 3 Setting up Harmonics list graph measurement 1. Press the Harmonic key on the Steps front panel of unit to enter the harmonics bar graph display.
Page 123 MEASUREMENT AND OTHER FUNCTIONS 2. Press the List soft key to enter the harmonics list display. 3. Press up and down arrow keys Turn pages of individually to flip over pages of harmonics list the harmonics list in which relevant values of each order of harmonics are well displayed.
Page 124 GPM-8320/8330 User Manual RMS current value of the harmonic order Active power value of the harmonic order V Hdf(%) Voltage harmonic distortion factor of the harmonic order I Hdf(%) Current harmonic distortion factor of the harmonic order P Hdf(%) Power harmonic distortion factor of the harmonic order V (°)
Page 125: Digital I/O / Da12
DIGITAL I/O / DA12 IGITAL I/O / DA12 Digital I/O / DA12 Overview ..........126 External Remote Control ............ 128 DA12 Output Function ............129...
Page 126: Digital I/O / Da12 Overview
GPM-8320/8330 User Manual Digital I/O / DA12 Overview Background The digital I/O /DA12 port contains up to two modes: External Remote Control and DA12 Output Function. Use the external I/O connector on the rear panel to control the instrument remotely and produce D/A output.
Page 127 DIGITAL I/O / DA12 DA 7Ch Out DA 6Ch Out DA 5Ch Out DA 4Ch Out DA 3Ch Out DA 2Ch Out DA 1Ch Out DA COM DA COM No connection DA COM No connection The Digital GND and D/A GND signals are connected Note internally.
Page 128: External Remote Control
GPM-8320/8330 User Manual External Remote Control Overview Through external control, you can hold values, perform single measurements, and start, stop, and reset integration. Remote Control Input diagram Output diagram IO Circuit Pulse width timing Start, Stop, Reset, hold, Trigger Integ Busy Out...
Page 129: Da12 Output Function
DIGITAL I/O / DA12 DA12 Output Function Overview You can output voltage, current, active power, apparent power, reactive power, power factor, phase angle, frequency, voltage peak, current peak, and integrated values using a ±5V FS DC voltage. The output range mode and maximum/minimum value of manual range mode can only be used when using a remote control interface.
Page 130 GPM-8320/8330 User Manual Manual (Manual You can set which measurement function values result range mode) in a D/A output of -5V, and which result in a D/A output of +5V. By doing so, you can enlarge or reduce (zoom) the D/A output of each channel.
Page 131 DIGITAL I/O / DA12 Maximum and The value maximum and minimum is between - Minimum Values 9.999E+12 and 9.999E+12. in Manual Range The default value is 100.0 and -100.0. Mode and Comparator Mode Relationship Frequency between Output Items and D/A Output Voltage Integrator Other...
Page 132 For Vpk and Ipk, ±5 V represents the application of 3 times the rated range value (6 times the rated range value when the crest factor is 6 or 6A). Refer to the table below for GPM-8320/8330 DA parameters calculation.
Page 133 DIGITAL I/O / DA12 Item Calculation Note (X / V_range) * 5V (X / I_range) * 5V (X / V_range * I_range) * 5V (X / V_range * I_range) * 5V (X / V_range * I_range) * 5V (X / 1.0) * 5V (X / 180) * -1 * 5V (X / Base_Hz) * 5V For example:...
Page 134: Remote Control
GPM-8320/8330 User Manual EMOTE CONTROL This chapter describes basic configuration of IEEE488.2 based remote control. For a command list, refer to the Command Overview chapter on page 143. Configure Remote Control Interface ........135 Configure USB Interface ........... 135 Configure RS232 Interface ..........136 Configure GPIB Interface ..........
Page 135: Configure Remote Control Interface
Due to the USB port configured to CDC USB CDC Class (Communications Device Class) by default, the GPM-8320/8330 will appear as a virtual COM port to a connected PC. Before, hence, using remote control via CDC USB class, install the appropriate CDC USB driver included on the User Manual CD.
Page 136: Configure Rs232 Interface
GPM-8320/8330 User Manual Configure RS232 Interface Continue the following setting from SYSTEM Background CONFIG setting screen 1. Press Enter button. Steps 2. Press down arrow key to move cursor to I/O Model field. 3. Use soft keys to select and confirm the RS232 option.
Page 137 Pin 3: TxD Pin 5: GND 6 7 8 9 Pin 1, 4, 6 ~ 9: No Connection Use a Null Modem connection as shown in the PC Connection diagram below. GPM-8320/8330 Pin2 RxD Pin2 Pin3 TxD Pin3 Pin5 GND Pin5...
Page 138: Configure Gpib Interface
GPM-8320/8330 User Manual Configure GPIB Interface Continue the following setting from SYSTEM Background CONFIG setting screen 1. Press Enter button. Steps 2. Press down arrow key to move cursor to I/O Model field. 3. Use soft keys to select and confirm the GPIB option.
Page 139 REMOTE CONTROL GPIB Pin Pin Signal Pin Signal Assignments Data I/O 1 Data I/O 5 RS232 Data I/O 2 Data I/O 6 Data I/O 3 Data I/O 7 Data I/O 4 Data I/O 8 Ground (DAV) NRFD Ground (NRFD) NDAC Ground (NDAC) Ground (IFC)
Page 140: Configure Lan Interface
GPM-8320/8330 User Manual Configure LAN Interface Continue the following setting from SYSTEM Background CONFIG setting screen 1. Press Enter button. Steps 2. Press down arrow key to move cursor to I/O Model field. 3. Use soft keys to select and confirm the LAN option.
Page 141 REMOTE CONTROL Default option DHCP 6. Press down arrow key to move Steps cursor to Socket Port field. 7. Use soft keys to increase or decrease the parameter of Socket Port. Option The range of Socket Port is from 00000 to 65535. Default option 00023 8.
Page 142: Configure Eol Character
GPM-8320/8330 User Manual Configure EOL Character The system config menu can set the EOL(end-of- Description line) character for return message. (The USB, GPIB and LAN’s EOL character is fixed with CR+LF) The EOL characters that can be received from the PC include CR+LF, LF+CR, CR or LF.
Page 143: Command Overview
COMMAND OVERVIEW OMMAND OVERVIEW The Command overview chapter lists all programming commands in functional order as well as alphabetical order. The command syntax section shows you the basic syntax rules you have to apply when using commands. Command Syntax Partial compatibility Compatible IEEE488.2 Standard...
Page 144 GPM-8320/8330 User Manual Command Types There are a number of different instrument commands and queries. A command sends instructions or data to the unit and a query receives data or status information from the unit. Command types A single command with/without...
Page 145 COMMAND OVERVIEW Commands that contain square brackets indicate Square Brackets that the contents are optional. The function of the command is the same with or without the square bracketed items, as shown below. For example, for the query: [:INPut]:FILTer? Both :INPut:FILTer? and :FILTer? are valid forms. :INPut:VOLTage:RANGe Command Format...
Page 146 GPM-8320/8330 User Manual For commands, this will set the [MAX] setting to the highest value. This (Optional parameter) parameter can be used in place of any numerical parameter where indicated. For queries, it will return the highest possible value allowed for the particular setting.
Page 147: Command List
COMMAND OVERVIEW Command List *CLS..................151 SCPI Commands *ESE ..................151 *ESR ..................152 *IDN..................152 *OPC ..................152 *OPT ..................153 *RST ..................153 *SRE ..................153 *STB ..................154 *TRG ..................154 :AOUTput ................155 AOUTput :AOUTput[:NORMal]:CHANnel<x> ......155 Commands :AOUTput[:NORMal]:IRTime .........
Page 148 GPM-8320/8330 User Manual :HARMonics:PLLSource............ 170 :HARMonics:ORDer ............171 :HARMonics:THD .............. 171 :HOLD .................. 172 HOLD Command INPut Commands :INPut ..................173 [:INPut]:WIRing ..............174 [:INPut]:MODE ..............174 [:INPut]:VOLTage .............. 175 [:INPut]:VOLTage:RANGe ..........175 [:INPut]:VOLTage:AUTO..........176 [:INPut]:VOLTage:CONFig..........176 [:INPut]:VOLTage:POJump ..........176 [:INPut]:CURRent ...............
Page 149 COMMAND OVERVIEW :MATH .................. 190 Math commands :MEASure ................191 MEASure :MEASure:AVERaging ............191 commands :MEASure:AVERaging[:STATe] ........191 :MEASure:AVERaging:TYPE .......... 192 :MEASure:AVERaging:COUNt ........192 :MEASure:MHOLd ............192 :NUMeric ................194 NUMeric :NUMeric:FORMat ............. 194 commands :NUMeric:NORMal ............195 :NUMeric[:NORMal]:VALue ..........195 :NUMeric[:NORMal]:NUMber ........
Page 150 GPM-8320/8330 User Manual :STATus................. 217 STATus :STATus:CONDition ............217 commands :STATus:EESE ..............217 :STATus:EESR ..............218 :STATus:ERRor ..............218 :STATus:FILTer<x> ............219 :STATus:QENable .............. 220 :STATus:QMESsage ............220 :STORe .................. 222 STORe :STORe[:STATe]..............222 commands :STORe:INTerval ..............222 :STORe:PANel ..............223 :SYSTem ................
Page 151: Cls
COMMAND OVERVIEW SCPI Commands *CLS ..................151 *ESE ..................151 *ESR ..................152 *IDN ..................152 *OPC ..................152 *OPT ..................153 *RST ..................153 *SRE ..................153 *STB ..................154 *TRG ..................154 *CLS Clears the standard event status register, extended Description event status register ,and error queue.
Page 152: Esr
GPM-8320/8330 User Manual Query *ESR Returns and clears the SESR (Standard Event Description Status Register). Query Syntax *ESR? Return parameter <NR1> 0~255 Example *ESR? ->198 SESR=11000110 Query *IDN Returns the manufacturer, model number, serial Description number, and system version of the instrument.
Page 153: Opt
COMMAND OVERVIEW Query *OPT Returns the installed option. Description Query Syntax *OPT? Return parameter <String> C1:GBIP C2:RS232 C3:USB Device C7:Ethernet EX1:External Sensor 1(2.5V/5V/10V) EX2:External Sensor 2 (50mV/100mV/200mV/500mV/1V/2V) G5:Harmonic measurement DA12:4 channel D/A output Example *OPT? ->C1,C2,C3,C7,EX1,EX2,G5,DA12 *RST Initializes the settings Description Syntax *RST...
Page 154: Stb
GPM-8320/8330 User Manual Example *SER 7 Set the the SRER to 00000111 *SRE? ->3 SRER=00000011 Query *STB Returns the SBR (Status Byte Register) contents. Description Query Syntax *STB? Return parameter <NR1> 0~255 Example *STB ? ->34 SBR=00100010 *TRG Executes single measurement (the same Description operation as when Trigger is pressed).
Page 155: Aoutput
Sets or returns a D/A output item. Description Syntax :AOUTput[:NORMal]:CHANnel<X> {<Function>[,<Element>]} Query Syntax :AOUTput[:NORMal]:CHANnel<X>? Parameter/ <x> 1 to 12 (channel) Return parameter <Function> U|I|P|S|Q|LAMBda|PHI|UPeak|IPeak|FU| FI|WH|WHP|WHM|AH|AHP|AHM| NONE <Element> 1(If <Element> is omitted, the element is set to 1)(For the GPM-8320/8330, only set to 1 or omitted)
Page 156: Aoutput[:Normal]:Irtime
GPM-8320/8330 User Manual Example :AOUTPUT:NORMAL:CHANNEL1 NONE Turns D/A channel1 output off (0V) :AOUTPUT:NORMAL:CHANNEL1? ->:AOUTPUT:NORMAL:CHANNEL1 I,1 :AOUTput[:NORMal]:IRTime Query Sets or returns the rated integration time that is Description used in the D/A output of the integrated value. Syntax :AOUTput[:NORMal]:IRTime {<NRf>,<NRf>,<NRf>} Query Syntax...
Page 157: Aoutput[:Normal]:Preset
COMMAND OVERVIEW Example :AOUTPUT:NORMAL:MODE1 FIXED :AOUTPUT:NORMAL:MODE1? ->:AOUTPUT:NORMAL:MODE1 FIXED • FIXed = Fixed range mode (default value) Note Outputs +5 V when the rated value of each measurement function is received. • MANual = Manual range mode The displayed values of the measurement function when +5 V and –5 V are output as D/A output can be set to any values of your choice.
Page 158: Aoutput:digital:mode
GPM-8320/8330 User Manual Query Syntax :AOUTput[:NORMal]:RATE<x>? Parameter/ <x> 1 to 12 (channel) Return parameter <NRf> -9.999E+12~9.999E+12 Example :AOUTPUT:RATE1 100,-100 :AOUTPUT:RATE1? ->:AOUTPUT:NORMAL:RATE1 100.0E+00,-100.0E+00 • When the D/A output is in manual range mode Note Set the rated value for +5 V output and then that for –5 V output.
Page 159: Aoutput:digital:output
COMMAND OVERVIEW :AOUTput:DIGital:OUTPut When the 4094 mode (serial to parallel) is selected Description for digital I/O, make use of this command to set output status. Syntax :AOUTput:DIGital:OUTPut {<NR1>,<Boolean>} Parameter <NR1> 0~255 (serial input data) <Boolean> 0,1 (strobe pulse) Example :AOUTPUT:DIGITAL:MODE 4094 :AOUTPUT:DIGITAL:OUTPUT 10,1 :AOUTput:DIGital:SETup When the IO mode is selected for digital...
Page 160: Communicate
GPM-8320/8330 User Manual COMMunciate Commands :COMMunicate ..............160 :COMMunicate:HEADer ..........160 :COMMunicate:LOCKout ..........161 :COMMunicate:REMote ............ 161 :COMMunicate:STATus ............ 162 :COMMunicate:VERBose ..........162 Query :COMMunicate Returns all communication settings. Description Query Syntax :COMMunicate? Return parameter <String> :COMMunicate:HEADer Query Sets or returns whether headers are attached to Description query responses.
Page 161: Commands :Communicate:lockout
Disable the local key. Enable the local key. Example :COMMUNICATE:LOCKOUT ON :COMMUNICATE:LOCKOUT? -> :COMMUNICATE:LOCKOUT 1 :COMMunicate:REMote Query Sets or returns the GPM-8320/8330 series to Description remote or local mode. ON is remote mode. Syntax :COMMunicate:REMote {<Boolean>|OFF | ON} Query Syntax :COMMunicate:REMote? Parameter <Boolean>0 OFF...
Page 162: Communicate:status
GPM-8320/8330 User Manual Example :COMMUNICATE:REMOTE ON :COMMUNICATE:REMOTE? ->:COMMUNICATE:REMOTE 1 Query :COMMunicate:STATus Returns and clears the line-specific status.(Only Description for RS-232) Query Syntax :COMMunicate:STATus? Return parameter Bit 0 Parity error. (each status bit) Bit 1 Framing error. Bit 2 Noise error Break character detection.
Page 163 COMMAND OVERVIEW Turn the verbose function on. Example :COMMUNICATE:VERBOSE ON :COMMUNICATE:VERBOSE? ->:COMMUNICATE:VERBOSE 1 Example of a response fully spelled out Note :INPUT:VOLTAGE:RANGE 150.0E+00 Example of a response in abbreviated form :VOLT:RANG 150.0E+00...
Page 164: Display
GPM-8320/8330 User Manual DISPlay Commands :DISPlay ................164 :DISPlay:NORMal .............. 164 :DISPlay[:NORMal]:ITEM<x> ........164 :DISPlay:INTegrate:ITEM<x> ........166 :DISPlay:PAGE ..............167 :DISPlay:NUMeric[:NORMal]:FORMat ......167 :DISPlay:NUMeric[:NORMal]:PAGE ......168 Query :DISPlay Returns all display settings. Description Query Syntax :DISPlay? Return parameter <String> Query...
Page 165 COMMAND OVERVIEW Parameter/ <x> 1 to 10 (display). Return parameter <Function> U|UPPeak|UMPeak|I|IPPeak|IMPeak |P|PPPeak|PMPeak|S|Q|LAMBda|CFU |CFI|PHI|FU|FI|UTHD|ITHD|MATH|MCR |EFFi <Element> {<NRf>|SIGMa}(<NRf> = 1 to 3) Example :DISPLAY:NORMAL:ITEM1 U,1 :DISPLAY:NORMAL:ITEM1? ->:DISPLAY:NORMAL:ITEM1 U,1 <Function> Function GPM- 8320/8330 Indicator Voltage V UPPeak Maximum voltage: V+pk [V+pk] UMPeak Minimum voltage: V-pk [V-pk] Current I...
Page 166: Display:integrate:item
GPM-8320/8330 User Manual UTHD Total harmonic distortion of voltage [THDV] Vthd ITHD Total harmonic distortion of current Ithd [THDI] MATH Mathematical Computation [MATH] Maximum Current Ratio [MCR] EFFi Power Efficiency [EFFI] :DISPlay:INTegrate:ITEM<x> Query Sets or returns a Integrate measurement data Description display item.

Page 167: Display:page
COMMAND OVERVIEW Current I :DISPlay:PAGE Query Sets or returns the display page item. Description Syntax :DISPlay:PAGE {<Function>} Query Syntax :DISPlay:PAGE? Parameter/ <Function> {MEASurement|ENLArge|INTEgrator| SYSTem_INFO|SYSTem_CONFig|SETUp Return parameter |AVERage|VA_RANGe_CONFig|EXT_RA NGe_CONFig|RATIo|EXTernal|SAVE_LO AD|OPTIon_DA|GRAPh|HARMonic_GR APh|HARMonic_LIST_GRAPh|HARDCO PY|SCPI|MATH} Example :DISPLAY:PAGE MEASUREMENT :DISPLAY:PAGE? ->:DISPLAY:PAGE MEASUREMENT :DISPlay:NUMeric[:NORMal]:FORMat Query Sets or queries the numeric display format. Description Syntax :DISPlay:NUMeric[:NORMal]:FORMat...
Page 168: Display:numeric[:Normal]:Page
GPM-8320/8330 User Manual :DISPlay:NUMeric[:NORMal]:PAGE Query Sets or queries the displayed page of the numeric Description display Syntax :DISPlay:NUMeric[:NORMal]:PAGE{<NRf>} Parameter/ <NRf> 1 to 4 (Page number) Return parameter Example :DISPLAY:NUMERIC:NORMAL:PAGE 1 :DISPLAY:NUMERIC:NORMAL:PAGE? ->:DISPLAY:NUMERIC:NORMAL:PAGE 1...
Page 169: Harmonics
COMMAND OVERVIEW HARMonics Command :HARMonics ................ 169 :HARMonics:DISPlay ............169 :HARMonics:DISPlay[:STATe] ........169 :HARMonics:DISPlay:ORDer .......... 170 :HARMonics:PLLSource ........... 170 :HARMonics:ORDer............171 :HARMonics:THD ............. 171 Query :HARMonics Returns all harmonic measurement settings. Description Query Syntax :HARMonics? Return parameter <String> Query :HARMonics:DISPlay Returns all harmonic measurement display Description settings.
Page 170: Harmonics:display:order
GPM-8320/8330 User Manual Return parameter 0 Turn the harmionic display off. Turn the harmionic display on. Example : HARMONICS:DISPLAY:STATE OFF : HARMONICS:DISPLAY:STATE? ->:HARMONICS:DISPLAY:STATE 0 :HARMonics:DISPlay:ORDer Query Sets or returns the harmonic order of the Description harmonic component that is shown in graph- >hormoics->bar page for the harmonic...
Page 171: Harmonics:order
COMMAND OVERVIEW :HARMonics:ORDer Query Sets or returns the maximum and minimum Description harmonic orders that are analyzed. Syntax :HARMonics:ORDer {<NRf>,<NRf>} Query Syntax :HARMonics:ORDer? Parameter/ 1st <NRf> 1(minimum harmonic order,fixed at Return parameter 2nd <NRf> 50 (maximum harmonic order) Example :HARMONICS:ORDER 1,20 :HARMONICS:ORDER? ->:HARMONICS:ORDER 1,20 :HARMonics:THD...
Page 172 GPM-8320/8330 User Manual HOLD Command :HOLD Query Sets or returns the on/off state of the output hold Description feature for display, communication, and other types of data. Syntax :HOLD {<Boolean>|OFF|ON} Query Syntax :HOLD? Parameter <Boolean>0 <Boolean>1 Return parameter 0 Turn the hold function off.
Page 173: Input
COMMAND OVERVIEW INPut Commands :INPut ................... 173 [:INPut]:WIRing ..............174 [:INPut]:MODE ..............174 [:INPut]:VOLTage .............. 175 [:INPut]:VOLTage:RANGe ..........175 [:INPut]:VOLTage:AUTO ..........176 [:INPut]:VOLTage:CONFig ..........176 [:INPut]:VOLTage:POJump ..........176 [:INPut]:CURRent .............. 177 [:INPut]:CURRent:RANGe ..........177 [:INPut]:CURRent:AUTO ..........178 [:INPut]:CURRent:CONFig ..........178 [:INPut]:CURRent:POJump ..........
Page 174: [:Input]:Wiring
GPM-8320/8330 User Manual [:INPut]:CFACtor Query Sets or returns the crest factor. Description Syntax [:INPut]:CFACtor {3|6|A6} Query Syntax [:INPut]:CFACtor? Parameter/ crest factor 3. Return parameter crest factor 6. Display range expand mode (6A) for crest factor 6. Example :INPUT:CFACTOR 3 :INPUT:CFACTOR? ->:INPUT:CFACTOR 3...
Page 175: [:Input]:Voltage
COMMAND OVERVIEW Syntax [:INPut]:MODE {DC|AC/RMS|ACDC| VMEan} Query Syntax [:INPut]:MODE? Parameter/ Select the dc measurement mode. Return parameter AC/RMS Select the ac measurement mode. ACDC Select the acdc measurement mode. VMEan Select the vmean measurement mode. Example :INPUT:MODE DC :INPUT:MODE? ->:INPUT:MODE DC Query [:INPut]:VOLTage Returns all voltage measurement settings.
Page 176: [:Input]:Voltage:auto
GPM-8320/8330 User Manual [:INPut]:VOLTage:AUTO Query Sets or returns the voltage auto range on/off state. Description Syntax [:INPut]:VOLTage:AUTO {<Boolean>|OFF|ON} Query Syntax [:INPut]:VOLTage:AUTO? Parameter <Boolean>0 OFF <Boolean>1 ON Return parameter 0 Turn the voltage auto range function off. Turn the voltage auto range function on.
Page 177: [:Input]:Current
COMMAND OVERVIEW Query Syntax [:INPut]:VOLTage:POJump? Parameter/ No jump destination voltage range. Return parameter <Voltage> See(:INPut:VOLTage:RANGe). Example :INPUT:VOLTAGE:POJUMP 600V :INPUT:VOLTAGE:POJUMP? ->:INPUT:VOLTAGE:POJUMP 600.0E+00 Query [:INPut]:CURRent Returns all current measurement settings. Description [:INPut]:CURRent? Query Syntax Return parameter <String> [:INPut]:CURRent:RANGe Query Sets or returns the current range. Description Query [:INPut]:CURRent:RANGe...
Page 178: [:Input]:Current:auto
GPM-8320/8330 User Manual Example :INPUT:CURRENT:RANGE 20A :INPUT:CURRENT:RANGE? ->:INPUT:CURRENT:RANGE 20.0E+00 :INPUT:CURRENT:RANGE EXTERNAL1,10V :INPUT:CURRENT:RANGE? -> :INPUT:CURRENT:RANGE EXTERNAL1,10.0E+00 [:INPut]:CURRent:AUTO Query Sets or returns the current auto range on/off state. Description Syntax [:INPut]:CURRent:AUTO {<Boolean>|OFF|ON} Query Syntax [:INPut]:CURRent:AUTO? Parameter <Boolean>0 OFF <Boolean>1 ON Return parameter 0 Turn the current auto range function off.
Page 179: [:Input]:Current:pojump
COMMAND OVERVIEW Example :INPUT:CURRENT:CONFIG 20,10,1 :INPUT:CURRENT:CONFIG? ->:INPUT:CURRENT:CONFIG 20.0E+00,10.0E+00, 1.0E+00 [:INPut]:CURRent:POJump Query Sets or returns the jump destination range that is Description used when a current peak over-range occurs. Syntax [:INPut]:CURRent:POJump {OFF|<Current>} Query Syntax [:INPut]:CURRent:POJump? Parameter/ No jump destination current range. Return parameter <Current >...
Page 180: [:Input]:Current:extsensor:pojump
GPM-8320/8330 User Manual Example :INPUT:CURRENT:EXTSENSOR:CONFIG1 2,0.5,0.1 :INPUT:CURRENT:EXTSENSOR:CONFIG1? ->:INPUT:CURRENT:EXTSENSOR:CONFIG1 2.00E+00,500.0E-03,100.0E-03 [:INPut]:CURRent:EXTSensor:POJump<x> Query Sets or returns the jump destination range that is Description used when a current peak over-range occurs. Syntax [:INPut]:CURRent:EXTSensor:POJump<x> {OFF|<Voltage>} Query Syntax [:INPut]:CURRent:EXTSensor:POJump<x>? Parameter/ <x> 1,2(EXT1,EXT2), If <x> is omitted, by Return parameter default sets or returns EXT2 config.

Page 181: [:Input]:Rconfig
COMMAND OVERVIEW [:INPut]:RCONfig Query Sets or returns the on/off state of the range Description configuration (valid range selection) feature. Syntax [:INPut]:RCONfig {<Boolean>|OFF|ON} Query Syntax [:INPut]:RCONfig? Parameter <Boolean>0 OFF <Boolean>1 ON Return parameter 0 Turn the range configuration feature off. Turn the range configuration feature on. Example :INPUT:RCONFIG ON :INPUT:RCONFIG?
Page 182: [:Input]:Scaling:{Vt|Ct|Sfactor}:Element
GPM-8320/8330 User Manual Example :INPUT:SCALING:STATE ON :INPUT:SCALING:STATE? ->:INPUT:SCALING:STATE 1 [:INPut]:SCALing:{VT|CT|SFACtor}:ELEMent Query <x> Sets or returns the VT ratio, CT ratio, or power Description coefficient of the specified element. Syntax [:INPut]:SCALing:{VT|CT|SFACtor}:ELEMent<x> {<NRf>} Query Syntax [:INPut]:SCALing:{VT|CT|SFACtor}:ELEMent<x>? Parameter/ <x> <x> = 1 to 3 (element) Return parameter <NRf>...

Page 183: [:Input]:Filter
COMMAND OVERVIEW Query [:INPut]:FILTer Returns all input filter settings. Description [:INPut]:FILTer? Query Syntax Return parameter <String> [:INPut]:FILTer:LINE Query Sets or returns the line filter. Description Syntax [:INPut]:FILTer:LINE {<Boolean>|OFF|ON} Query Syntax [:INPut]:FILTer:LINE? Parameter <Boolean>0 OFF <Boolean>1 ON Return parameter 0 Turn the line filter function off. Turn the line filter function on.
Page 184: [:Input]:Pover
GPM-8320/8330 User Manual Example :INPUT:FILTER:FREQUECNY OFF :INPUT:FILTER:FREQUECNY? ->:INPUT:FILTER:FREQUECNY 0 Query [:INPut]:POVer Returns the peak over-range information. Description Query Syntax [:INPut]:POVer? Return parameter Bit 7 6 5 4 3 2 1 0 Voltage peak over-range is occurring. I3 U3 I2 U2 I1 U1 Current peak over-range is occurring.
Page 185: [:Input]:Zero
COMMAND OVERVIEW Bit6 The current is over-range. Bit7 The current is peak over-range. Example :INPUT:CRANGE? ->:INPUT:CRANGE 8 (Indicate the voltage is peak over-range) [:INPut]:ZERO Query Sets or returns the zero state. Description Syntax [:INPut]:ZERO {<Boolean>|OFF|ON} Query Syntax [:INPut]:ZERO? Parameter <Boolean>0 OFF <Boolean>1 ON Return parameter 0 Turn the zero function off.
Page 186 GPM-8320/8330 User Manual INTEGrate Commands :INTEGrate ................186 :INTEGrate:MODE ............186 :INTEGrate:FUNCtion ............. 187 :INTEGrate:TIMer ............. 187 :INTEGrate:STARt ............187 :INTEGrate:STOP ............. 188 :INTEGrate:RESet ............. 188 :INTEGrate:STATe ............188 :INTEGrate:ELEMent ............188 Query :INTEGrate Returns all integration settings. Description :INTEGrate? Query Syntax Return parameter <String>...
Page 187 COMMAND OVERVIEW :INTEGrate:FUNCtion Query Sets or returns the integration function. Description Syntax :INTEGrate:FUNCtion {WATT|AMPEre} Query Syntax :INTEGrate:FUNCtion? Parameter/ WATT Select the integration function watt. Return parameter AMPEre Select the integration function ampere. Example :INTEGRATE:FUNCTION WATT :INTEGRATE:FUNCTION? ->:INTEGRATE:FUNCTION WATT :INTEGrate:TIMer Query Sets or returns the integration timer value.
Page 188 GPM-8320/8330 User Manual :INTEGrate:STOP Stops integration. Description Syntax :INTEGrate:STOP Example :INTEGRATE:STOP :INTEGrate:RESet Resets the integrated value. Description Syntax :INTEGrate:RESet Example :INTEGRATE:RESET Query :INTEGrate:STATe Returns the integration status. Description Query Syntax :INTEGrate:STATe? Return parameter ERRor Integration overflows. RESet Integration resets. STARt Integration is in progress.
Page 189 COMMAND OVERVIEW Example :INTEGRATE:ELEMENT 1-3/SIGMA/All :INTEGRATE:ELEMENT? 1-3/SIGMA/All...
Page 190 GPM-8320/8330 User Manual Math Commands :MATH Query Sets or returns the MATH equation. Description Syntax :MATH{<Equation>[,<Parameter1>][,<Element1>] [,<Parameter2>][,<Element2>]} Query Syntax :MATH{<Equation>[,<Parameter1>][,<Element1>][,<P arameter2>][,<Element2>]}? Parameter/ Equation {ADD|SUB|MUL|DIV|DIVA|DIVB} Return parameter Parameter1,2 {U|I|P|S|Q} Element1,2 1 to 3, SIGMa Example :MATH ADD Set math equation to A+B :MATH? ->:MATH ADD...
Page 191: Measure
COMMAND OVERVIEW MEASure Commands :MEASure ................191 :MEASure:AVERaging ............191 :MEASure:AVERaging[:STATe] ........191 :MEASure:AVERaging:TYPE .......... 192 :MEASure:AVERaging:COUNt ........192 :MEASure:MHOLd ............192 Query :MEASure Returns all measured and computed data output Description settings. Query Syntax :MEASure? Return parameter <String> Query :MEASure:AVERaging Returns all averaging settings.
Page 192: Measure:averaging:type
GPM-8320/8330 User Manual Example :MEASURE:AVERAGING:STATE ON :MEASURE:AVERAGING:STATE? ->:MEASURE:AVERAGING:STATE 1 :MEASure:AVERaging:TYPE Query Sets or returns the averaging type. Description Syntax :MEASure:AVERaging:TYPE {LINear|EXPonent} Query Syntax :MEASure:AVERaging:TYPE? Parameter/ LINear Select averaging type to linear. Return parameter EXPonent Select averaging type to exponent. Example...
Page 193 COMMAND OVERVIEW Parameter <Boolean>0 <Boolean>1 Return parameter 0 Turn the MAX hold function off. Turn the MAX hold function on. Example :MEASURE:MHOLD ON :MEASURE:MHOLD? ->:MEASURE:MHOLD 1...
Page 194: Numeric
GPM-8320/8330 User Manual NUMeric Commands :NUMeric ................194 :NUMeric:FORMat ............. 194 :NUMeric:NORMal ............195 :NUMeric[:NORMal]:VALue ........... 195 :NUMeric[:NORMal]:NUMber ........197 :NUMeric[:NORMal]:ITEM<x> ........197 :NUMeric[:NORMal]:PRESet .......... 201 :NUMeric[:NORMal]:CLEar ..........203 :NUMeric[:NORMal]:DELete .......... 204 :NUMeric[:NORMal]:HEADer ........204 :NUMeric:LIST..............205 :NUMeric:LIST:VALue ............. 205 :NUMeric:LIST:NUMber ..........
Page 195: Numeric:normal
COMMAND OVERVIEW Parameter/ ASCii Select numeric data format to ascii. Return parameter FLOat Select numeric data format to float. Example :NUMERIC:FORMAT ASCII :NUMERIC:FORMAT? ->:NUMERIC:FORMAT ASCII • ASCii Note Physical values are output in the <NR3> format. (Only the elapsed integration time—TIME—is output in <NR1>...
Page 196 GPM-8320/8330 User Manual Parameter <NRf> 1 to 200 (item number) Example • If <NRf> is specified, only the numeric data for the specified item is output. :NUMERIC:NORMAL:VALUE? 1 -> 103.79E+00 • If <NRf> is omitted, the numeric data items from 1...
Page 197: Numeric[:Normal]:Number
COMMAND OVERVIEW  Data does not exist (the display shows “-----”) Error Data ASCII: NAN (Not A Number) FLOAT: 0x7E951BEE (9.91E+37)  Data over (the display shows “-----“) ASCII: INF (INFinity) FLOAT: 0x7E94F56A (9.9E+37) :NUMeric[:NORMal]:NUMber Query Sets or returns the number of numeric data items Description that are transmitted by the :NUMeric[:NORMal]: VALue? command.
Page 198 GPM-8320/8330 User Manual Parameter/ <x> 1 to 200 Return parameter NONE No output item. <Function> {U|UPPeak|UMPeak|I|IPPeak|IMPeak |P|PPPeak|PMPeak|S|Q|LAMBda|CFU |CFI|PHI|FU|FI|UTHD|ITHD|WH |WHP|WHM|AH|AHP|AHM|TIME |URANge|IRANge|MATH|MCR} {UK|IK|PK|LAMBDAK|PHIK|PHIUK|P HIIK|UHDFK| IHDFK|PHDFK} <Element> <NRf>|SIGMa}(<NRf> = 1 to 3) <Order> {TOTal|DC|<NRf>}(<NRf> = 1 to 50) Example :NUMERIC:NORMAL:ITEM1 U,1 :NUMERIC:NORMAL:ITEM1? ->:NUMERIC:NORMAL:ITEM1 U,1...
Page 199 COMMAND OVERVIEW PMPeak Minimum power: P-pk [P-pk] Apparent power S [VA] Reactive power Q [VAR] LAMBda [PF] Power factor λ [CFV] Voltage factor λ Current factor λ [CFI] Phase difference Φ [DEG] Voltage frequency fV [VHz] Current frequency fI [AHz] UTHD Total harmonic distortion of [THDV]...
Page 200 GPM-8320/8330 User Manual URMN Rectified mean voltage Vrmn AC voltage component Vac [Vac] IRMS True rms current Irms Rectified mean current calibrated to the rms value Simple current average Idc [Idc] IRMN Rectified mean current Irmn AC current component Iac...
Page 201: Numeric[:Normal]:Preset
COMMAND OVERVIEW :NUMeric[:NORMal]:PRESet Presets the numeric data output item pattern. Description Syntax :NUMeric[:NORMal]:PRESet {<NRf>} Parameter/ <NRf> 1 to 4 Return parameter Example :NUMERIC:NORMAL:PRESET 1 Patterns 1 ITEM<x> <Function> <Element> 4 ~ 6 U to P 7 ~ 9 U to P 10 ~ 12 U to P SIGMA...
Page 202 GPM-8320/8330 User Manual 21 ~ 29 U to FI None None 31 ~ 39 U to FI SIGMA 40 ~ 200 None None Patterns 3 ITEM<x> <Function> <Element> LAMBda UPPeak UMPeak IPPeak IMPeak PPPeak PMPeak 16 ~ 30 U to Peak...
Page 203: Numeric[:Normal]:Clear
COMMAND OVERVIEW LAMBda UPPeak UMPeak IPPeak IMPeak TIME 21 ~ 40 U to AHM 41 ~ 60 U to AHM 61 ~ 80 U to AHM SIGMA 81 ~ 200 None None :NUMeric[:NORMal]:CLEar Clears numeric data output items (sets the items Description to NONE).
Page 204: Numeric[:Normal]:Delete
GPM-8320/8330 User Manual 2nd <NRf> 1 to 200 (the number of the last item to clear) Example :NUMERIC:NORMAL:CLEAR ALL If the 2nd <NRf> is omitted, the output item specified Note by the first and all following output items (up to number 200) are cleared.
Page 205: Numeric:list
COMMAND OVERVIEW Example • If <NRf> is specified, only the data name for the specified item number is output. :NUMERIC:NORMAL:HEADER? 1 -> U-E1 • If <NRf> is omitted, the data names of the items from 1 to the number specified by the : NUMeric[:NORMal]:NUMber command are output in order.
Page 206: Numeric:list:number
GPM-8320/8330 User Manual Example • if <NRf> is specified :NUMERIC:LIST:VALUE? 1 -> 103.58E+00,NAN,103.53E+00,0.09E+00,2.07E+00, 0.04E+00,.. (omitted)..,0.01E+00,0.01E+00 (up to 52 data values) • if <NRf> is omitted (when :NUMeric:LIST:NUMber is set to 5) :NUMERIC:LIST:VALUE? -> 103.58E+00,NAN,103.53E+00,0.09E+00,2.07E+00, 0.04E+00,..(omitted)..,0.00E+00,0.00E+00 (up to 52*5 = 260 data values) •...
Page 207: Numeric:list:order
COMMAND OVERVIEW Parameter/ <NRf> 1 to 8(ALL) Return parameter Example :NUMERIC:LIST:NUMBER 3 :NUMERIC:LIST:NUMBER? ->:NUMERIC:LIST:NUMBER 3  If the parameter is omitted from Note the :NUMeric:LIST:VALue? command, the numeric list data items from 1 to the specified value are output in order. ...
Page 208: Numeric:list:item
:NUMeric:LIST:ITEM<x>? Parameter/ <x> 1 to 24 Return parameter NONE No output item. <Function> {U|I|P|PHIU|PHII|UHDF|UHDF|PHDF} <Element> 1(If <Element> is omitted, the element is set to 1)( For the GPM-8320/8330, only set to 1 or omitted) Example :NUMERIC:LIST:ITEM1 U,1 :NUMERIC:LIST:ITEM1? ->:NUMERIC:LIST:ITEM1 U,1...

Page 209: Numeric:list:preset
COMMAND OVERVIEW :NUMeric:LIST:PRESet Presets the harmonic measurement numeric list Description data output item pattern. Syntax :NUMeric:LIST:PRESet {<NRf>} Parameter/ <NRf> 1 to 4 Return parameter Example :NUMERIC:LIST:PRESET 1 Patterns 1 ITEM<x> <Function> <Element> 4 ~ 6 U to P 7 ~ 9 U to P 10 ~ 24 None...
Page 210: Numeric:list:clear
GPM-8320/8330 User Manual UHDF IHDF PHDF 7 ~ 12 U to PHDF 13 ~ 18 U to PHDH 3 19 ~ 24 None None Patterns 4 ITEM<x> <Function> <Element> PHIU PHII UHDF IHDF PHDF 9 ~ 16 U to PHDF...
Page 211: Numeric:list:delete
COMMAND OVERVIEW Note If the 2nd <NRf> is omitted, the output item specified by the first and all following output items (up to number 8) are cleared. :NUMeric:LIST:DELete Deletes numeric data output items. Description Syntax :NUMeric:LIST:DELete {<NRf>[,<NRf>]} Parameter 1st <NRf> 1 to 24 (the number of the first item to delete) 2nd <NRf>...
Page 212 GPM-8320/8330 User Manual Example :NUMERIC:HOLD ON :NUMERIC:HOLD? ->:NUMEIRC:HOLD 1 • If :NUMeric:HOLD is set to ON before Note :NUMeric[:NORMal]:VALue? or :NUMeric:LIST:VALue? is executed, all the numeric data at that point in time can be held internally. • As long as :NUMeric:HOLD is set to ON, numeric data is held even when the numeric data on the screen is updated.
Page 213 COMMAND OVERVIEW RATE Commands :RATE ................... 213 :RATE:AUTO ..............213 :RATE:AUTO:TIMeout ............ 213 :RATE:AUTO:SYNChronize ........... 214 :RATE Query Sets or returns the data update interval. Description Syntax :RATE {<TIME>|AUTO} Query Syntax :RATE? Parameter/ <TIME> 100, 250, 500(ms), 1, 2, 5, 10, 20(s) Return parameter AUTO Select update rate at auto.
Page 214 GPM-8320/8330 User Manual Query Syntax :RATE:AUTO:TIMeout? Parameter/ <TIME> 1, 5, 10, 20(s) Return parameter Example RATE:AUTO:TIMEOUT 1 :RATE:AUTO:TIMEOUT? -> :RATE:AUTO:TIMEOUT 1 :RATE:AUTO:SYNChronize Query Sets or returns the synchronization source for Description when the data update interval is set to Auto.
Page 215 COMMAND OVERVIEW RECall Commands :RECall:NUMber ..............215 :RECall[:NORMal]:VALue ..........215 :RECall:LIST:VALue............216 :RECall:PANel ..............216 Query :RECall:NUMber Returns the number of blocks of measured data Description that is stored. Query Syntax :RECall:NUMber? Example :RECall:NUMber? ->100 :RECall[:NORMal]:VALue Query Returns the numeric data at the specified block Description number.
Page 216 GPM-8320/8330 User Manual Query :RECall:LIST:VALue Returns the numeric list data of harmonic Description measurement at the specified block number. Query Syntax :RECall:LIST:VALue? {<NRf>} Parameter <NRf> 1 to 1000 (block number) Example • If <NRf> is specified,the numeric list data at the specified block number will be returned.
Page 217: Status
COMMAND OVERVIEW STATus Commands :STATus ................217 :STATus:CONDition ............217 :STATus:EESE ..............217 :STATus:EESR ..............218 :STATus:ERRor ..............218 :STATus:FILTer<x> ............219 :STATus:QENable ............. 220 :STATus:QMESsage ............220 Query :STATus Returns all the settings for the communication Description status feature. Query Syntax :STATus? Return parameter <String>...
Page 218: Status:eesr
GPM-8320/8330 User Manual Query Syntax :STATus:EESE? Parameter/ <NRf> 0 to 65535 Return parameter Example :STATUS:EESE 16 :STATUS:EESE? -> :STATUS:EESE 16 For information about the condition register, see Note Appendix,"Status system" at page 239. Query :STATus:EESR Returns the contents of the extended event Description register and clears the register.
Page 219: Status:filter
COMMAND OVERVIEW • If no errors have occurred, 0,”No error” is returned. Note • User can use the :STATus:QMESsage command to specify whether the message is included. • Error message description: Error_103: Invalid separator Error_104: Data type error. Error_108: Parameter not allowed. Error_109: Missing parameter.

Page 220: Status:qenable
GPM-8320/8330 User Manual • Set how each bit in the condition register must Note change to trigger the setting of an event. • For information about the condition register, see Appendix,"Status system" at page 239. :STATus:QENable Query Sets or returns whether messages other than...
Page 221 COMMAND OVERVIEW Example :STATUS:QMESSAGE ON :STATUS:QMESSAGE? -> :STATUS:QMESSAGE 1...
Page 222 GPM-8320/8330 User Manual STORe Commands :STORe .................. 222 :STORe[:STATe] ..............222 :STORe:INTerval ..............222 :STORe:PANel ..............223 Query :STORe Returns all storage settings. Description Syntax :STORe? Return parameter <String> :STORe[:STATe] Query Sets or returns the storage on/off state. Description Syntax :STORe[:STATe] {<Boolean>|OFF|ON}...
Page 223 COMMAND OVERVIEW Parameter/ 1st <NRf> 0 to 99 (hours) Return parameter 2nd <NRf> 0 to 59 (minutes) 3rd <NRf> 0 to 59 (seconds) Example :STORE:INTERVAL 0,0,1 :STORE:INTERVAL? ->:STORE:INTERVAL 0,0,1 • When time interval is set 00:00:00, the storage Note interval is identical with the designated data update interval.
Page 224: System
GPM-8320/8330 User Manual SYSTem Commands :SYSTem ................224 :SYSTem:BRIGhtness ............224 :SYSTem:COMMunicate:COMMand ......225 :SYSTem:COMMunicate:ETHernet:MACaddress ..225 :SYSTem:FIRMware:DATE ..........225 :SYSTem:KLOCk ............... 226 :SYSTem:MODel ..............227 :SYSTem:RESolution ............227 :SYSTem:SERial ..............227 :SYSTem:VERsion[:FIRMware] ........227 Query :SYSTem Returns all system settings.
Page 225: System:communicate:command
COMMAND OVERVIEW :SYSTem:COMMunicate:COMMand Query Sets or returns the command type. Description Syntax :SYSTem:COMMunicate:COMMand {DEFAULT|USER} Query Syntax :SYSTem:COMMunicate:COMMand? Parameter/ DEFAULT GPM8320/8330. Return parameter USER User-define. Example :SYSTEM:COMMUNICATE:COMMAND DEFAULT :SYSTEM:COMMUNICATE:COMMAND? ->:SYSTEM:COMMUNICATE:COMMAND DEFAULT • The SCPI mode is used to determine whether the Note *IDN? query returns the “Default”...
Page 226: System:klock
GPM-8320/8330 User Manual Example :SYSYEM:FIRMWARE:DATE? ->:SYSYEM:FIRMWARE:DATE 20200101 :SYSTem:KEY:BEEPer Query Sets or returns the keyclick beeper state. Description Syntax :SYSTem:KEY:BEEPer {<Boolean>|OFF|ON} Query Syntax :SYSTem:KEY:BEEPer? Parameter <Boolean> 0 <Boolean> 1 Return parameter 0 Turn the keyclick beeper function off. Turn the keyclick beeper function on.
Page 227: System:model
COMMAND OVERVIEW Query :SYSTem:MODel Returns the model code. Description Syntax :SYSTem:MODel? Example :SYSTEM:MODEL? ->:SYSTEM:MODEL "GPM-8320/8330" Query :SYSTem:RESolution Returns the numeric data display resolution. Description Query Syntax :SYSTem:RESolution? Example :SYSTEM:RESOLUTION? ->:SYSTEM:RESOLUTION 5 Query :SYSTem:SERial Returns the serial number. Description Syntax :SYSTem:SERial?
Page 228 GPM-8320/8330 User Manual PPENDIX Specifications ............229 General Specifications ............229 Input .................. 230 Voltage and Current Accuracy .......... 231 Active Power Accuracy ............232 Voltage, Current and Active Power Measurements ..233 Frequency Measurement ..........235 Integration ................. 236 Harmonic Measurement ..........
Page 229: Appendix
APPENDIX Specifications Below are the basic conditions required to operate the GPM- 8320/8330 within specification: Calibration: Yearly  18~28 ˚C (64.4~82.4˚F) Operating Environment:   Humidity: <80%RH, Accuracy: ± (% of reading + % of range)  The specifications apply when it warmed up for at least 30 ...
Page 230: Input
GPM-8320/8330 User Manual Input Item Specifications Floating input through resistive Voltage voltage divider Input type Current Floating input through shunt Voltage 15 V, 30 V, 60 V,150 V, 300 V, 600 V and 1000V Current Measure range Direct input 0.5 A, 1 A, 2 A, 5 A, 10 A and 20 A Sensor input EX1: 2.5 V, 5 V and 10 V...
Page 231: Voltage And Current Accuracy
APPENDIX When the data update interval is 100 ms the numeric display 10 items display update interval is 200 ms. When the data update interval is 100 ms or 250ms and the Display update numeric value display is set to Matrix or ALL Items display interval update interval is 500 ms.
Page 232: Active Power Accuracy
GPM-8320/8330 User Manual Add 0.02% of range/°C to the DC voltage accuracy. Influence of Add the following value to the DC current accuracies. temperature 0.5 A/1 A/2 A/5 A/10 A/20 A ranges 500 µA/°C changes after zero- External current sensor input (/EX1) 1 mV/°C level compensation External current sensor input (/EX2) 50 µV/°C...
Page 233: Voltage, Current And Active Power Measurements
APPENDIX Temperature same as the temperature coefficient for voltage and current coefficient Accuracy when the accuracy obtained by doubling the measurement range crest factor is set to error for the accuracy when the crest factor is set to 3 6 or 6A Accuracy of voltage accuracy + current accuracy apparent power S...
Page 234 GPM-8320/8330 User Manual Crest factor 6A Vrms or Irms exceeds 260% of the currently set measurement range. Vpk, Ipk value of the input signal exceeds 600% of the currently set measurement range. Auto-range decline The range is downed when all of the following conditions are met.
Page 235: Frequency Measurement
APPENDIX Apparent Power Reactive power Power Factor Crest Factor CFI,CFV Phase Angle Frequency IHz and VHz Voltage Peak V+pk and V-pk Current Peak I+pk and I-pk Active Power Peak P+pk and P-pk Total Harmonic Distortion THDI and THDV Mathematical Computation MATH Maximum Current Ratio Frequency Measurement...
Page 236: Integration
GPM-8320/8330 User Manual Requirements When the input signal level is 30% or more of the measurement range If the crest factor is set to 3. (60% or more if the crest Accuracy factor is set to 6 or 6A) • Frequency filter is ON when measuring voltage or current of 200 Hz or less.
Page 237: D/A Output (Options)
APPENDIX 150 Hz to 300 Hz f × 256 300 Hz to 600 Hz f × 128 600 Hz to 1200 Hz f × 64 Frequency Voltage Current Power 10 Hz ≤ f < 45 Hz 0.15% of 0.15% of 0.35% of reading reading...
Page 238: Remote Control Input/Output Signal (Options)
In respect to distorted signal input, accordingly, the value acquired from other instruments, which employ different methods, may differ from that acquired from GPM-8320/8330 unit. * “Zero” will be shown for S or Q and “--“ will be displayed for λ and Φ...
Page 239: Status System
APPENDIX Status system The diagram below is a description of the status system...
Page 240 GPM-8320/8330 User Manual The extended event register receives information about changes in the condition register, which indicates the instrument’s internal condition. The information is the result of edge detection performed by the transition filter. The following table lists the bit definitions for the condition register:...
Page 241 APPENDIX The transition filter parameters detect changes in the specified condition register bits (numeric suffixes 1 to 16) and overwrite the extended event register in the following ways. Condition Definition RISE The specified extended event register bit is set to 1 when the corresponding condition register bit changes from 0 to 1.
Page 242 GPM-8320/8330 User Manual The following table describes the Status Byte Register. Name Decimal Definition Not Used (Reserved for future use) Not Used (Reserved for future use) Error One or more errors have been stored in the Queue Error Queue. Use STAT:ERR? to read and delete errors.
Page 243: Dimensions
APPENDIX Dimensions Unit = mm 402.5...
Page 244: Certificate Of Compliance
GPM-8320/8330 User Manual Certificate Of Compliance GOOD WILL INSTRUMENT CO., LTD. declare that the CE marking mentioned product satisfies all the technical relations application to the product within the scope of council: Directive: EMC; LVD; WEEE; RoHS The product is in conformity with the following standards or other normative documents: ◎...
Page 245: Power Measurement
APPENDIX Power measurement Direct read method: Directly read the Method  measurement value measured from power measuring instrument. The average power method: Record the actual  power value within a settable period of time and then take the average. A settable period of time isn’t less than 10min.
Page 246: Measurement For Large Current
GPM-8320/8330 User Manual Measurement for large current Voltage measurement mode measured from load side (Connect to ammeter externally). The voltage measurement is accurate. The current measurement on load could be larger than the actual one due to leakage current of multi-measurement voltage.

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