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General Measure GMT-P1 User Manual

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GMT-P1
—PN/EIP/EtherCAT/CCLINK
U s e r ' s M a n u a l
110611010012
v30.02.09

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Summary of Contents for General Measure GMT-P1

  • Page 1 GMT-P1 —PN/EIP/EtherCAT/CCLINK U s e r ’ s M a n u a l 110611010012 v30.02.09...
  • Page 2 ©2021, Shenzhen General Measure Technology Co., Ltd reserves all copyright. Without permission from Shenzhen General Measure Technology Co., Ltd., Any corporations or person must not copy, spread, record or translate into other language by any forms. Our company reserved the right to update user’s manual without additional notice to customers by reason of update, so please visit our website or contact with our service person to get update information.

  • Page 3: Table Of Contents

    CONTENTS 1 General Description ..............1 1.1 Functions and Characteristics ........... 1 1.2 Front Panel ................ 2 1.3 Rear Panel ................. 4 1.4 Technical Specifications ........... 4 1.4.1 Common..............4 1.4.2 Analog ..............5 1.4.3 Digital ..............5 2 Installation and Wiring ..............6 2.1 Connection of Power Supply ..........
  • Page 4 3 Calibration ................. 12 3.1 Instruction ............... 12 3.2 Flow Chart of Calibration ..........12 3.3 Millivolt Value Display ........... 17 3.4 Calibration with Weights ..........18 3.5 No weight calibration ............18 3.5.1 No weight zero Calibration ........18 3.5.2 No weight gain Calibration ........
  • Page 5 6.1.1 I/O Status ............. 37 6.1.2modbus read write operate address sheet ....46 6.1.3 Device Description file GSD ....... 52 6.1.4 Profinet master configuration GMT-P1....52 6.2 Ethernet-IP communication ..........64 6.2.1 IO status ............... 64 6.2.2 Device description file EDS ......... 71 6.3 EtherCAT Communication ..........
  • Page 6 6.4.2 Acyclic parameter lists ......... 78 6.4.3 Device Description File CSP ....... 79 7 Password Input and Setting Reset ..........80 7.1 Password Input ..............80 7.2 Password Setting ............. 80 7.3 Factory Reset ..............81 8 Display Testing ................83 9 Errors and Alarm Messages ............

  • Page 7: General Description

    GMT-P1 User’s Manual 1 General Description GMT-P1 digital indicator is specially designed for weight transmitting in industrial fields. Support Profinet,Ethernet IP, EtherCAT,CCLINK IE.The digital indicator is a small weight display which is specially designed and produced for the occasion of weight transmit industrial.

  • Page 8: Front Panel

    GMT-P1 User’s Manual 1.2 Front Panel Main Display: 6 digits, for displaying weight and the information of parameters. Status Indicator Lamp: ➢ ZERO: Light on when present weight is within 0±1/4d. ➢ STAB: Light on when changes of weight values are within the range of motion detecting during motion detecting time.
  • Page 9 GMT-P1 User’s Manual :Exit from current operation or go previous. Long press the ZERO button to calibrate the ZERO point function. (Limited by the ZERO clearing range,but it is not limited by calibration lock) : Scroll optional values of parameter and to make flashing digit increase 1 while data inputting.

  • Page 10: Rear Panel

    GMT-P1 User’s Manual 1.3 Rear Panel ※ PN/EIP/EtherCAT indicator, light blinks when bus communication normal. 1.4 Technical Specifications 1.4.1 Common Power supply: DC24V±5% Working temperature: -10 ~ 40℃ Max humidity: 90%R.H without dew...

  • Page 11: Analog

    GMT-P1 User’s Manual Power consumption: About 10W Dimension: 105×89×57 (mm) 1.4.2 Analog Load cell power: DC5V 200mA (MAX) Input impedance: 10MΩ Zero steady range: 0.00 ~ 15mV(Load cell 3mV/V) Input sensitivity: 0.01uV/d Input range: 0.00 ~ 15mV(Load cell 3mV/V) Transfer mode: Sigma - Delta A/D conversion speed: 30, 60, 120, 240, 480, 960 times/sec Non-linearity: 0.01% F.S...

  • Page 12: Installation And Wiring

    2.2 Connection of Load Cell GMT-P1 digital indicator connects bridge type resistance strain gauge load cells by 6 wires or 4 wires as follows. When you use 4-wired load cells, you must bridge the SN+ with EX+ and bridge the SN- with EX-.

  • Page 13: Wires Connection

    GMT-P1 User’s Manual 2.2.1 6 wires connection Note: 1. As load cell output sensitive analog signal, please use shield cable to separate with other cables, especially AC power. 2. 4 wires connection is suitable for short distance and stable temperature or low precision field, otherwise use 6 wires connection.

  • Page 14: I/O Terminals

    GMT-P1 User’s Manual 2.3 I/O terminals The IO of GMT-P1 weight display can be customized by the user (see Chapter 5 for details) to facilitate user wiring and some special applications. The driving current of each channel is 200mA. When the product leaves the factory, the default definition is as follows.
  • Page 15 GMT-P1 User’s Manual Indicator output terminal connection:...

  • Page 16: Bus Port Connection

    GMT-P1 User’s Manual 2.4 BUS Port connection GMT-P1 supports Profinet, Ethernet IP, EtherCAT, CCLINK IE Base bus protocol communication (the above three are optional functions, order need to declare). Note: When EtherCAT communication, Port1 is used as the entrance. When connecting with multiple devices, the devices should be connected serially to distinguish the entrance and exit order.
  • Page 17 GMT-P1 User’s Manual Communication indicator: When PN, EIP and EtherCAT,CCLINK IE Base are communicating normally, the communication indicator is blinking.

  • Page 18: Calibration

    GMT-P1 User’s Manual 3 Calibration 3.1 Instruction (1) When GMX-T1 weight transmitter or any part of the weighing system is changed for the first time and the current equipment calibration parameters can’t meet the user’s requirements, the display shall be calibrated. Calibration can determine the system zero and gain of the weighing system.

  • Page 19: Normal Status

    GMT-P1 User’s Manual (twice), 1. Under this status, press indicator will display CAL, then press to enter password input. Normal Status 2. After enter correct password, the indicator will display CALON for one second, then go to set decimal point.
  • Page 20 GMT-P1 User’s Manual to select a desired value for min. 4. Press division among 1,2,5,10,20 and 50, and then to save it and enter next step. If there’s no need to change the Min,division, then Min. divistion directly to enter next step.

  • Page 21: Zero Calibration

    GMT-P1 User’s Manual 7.Unloaded scale first, when STAB lamp is to finish zero calibration. on, press If there’s no need to calibrate zero, press Zero calibration directly to enter gain calibration. 8.The process of gain calibration is as follows. If there’s no need to do gain calibration, press directly to enter serial ports calibration switch setting.
  • Page 22 GMT-P1 User’s Manual 9. Press to enter remote calibration ON/OFF, press to choose ON/OFF. press to set password. If don’t need to set switch position, then press enter password setting. 10. Refer to section 7.2 to set password. If there's no need to set password, press...

  • Page 23: Millivolt Value Display

    GMT-P1 User’s Manual 3.3 Millivolt Value Display This function is mainly used for system test, position-error test for weighing mechanism and linearity test for load cell. 1. System Test (1) If display data changes with loaded weight changes, it shows that connection of load cell is correct and weighing mechanism works well.

  • Page 24: Calibration With Weights

    GMT-P1 User’s Manual 3.4 Calibration with Weights In Chapter 3.2, steps 7 and 8 in the calibration flow chart are operation instructions of zero calibration and gain calibration with weights. During calibration with weight, please record the zero millivolt value, gain millivolt value and the loaded weight value in the blank table below.

  • Page 25: No Weight Gain Calibration

    GMT-P1 User’s Manual 3.5.2 No weight gain Calibration There are two methods for weighting - free calibration gain 1) Historical calibration: Gain calibration by entering historical record values. 2)Theoretical calibration: Calibrate through sensor sensitivity and maximum range value of input...

  • Page 26: Historical Gain Calibration

    GMT-P1 User’s Manual Historical gain calibration 1) In gain calibration interface, press , and the interface displays 1. Press to enter the manual gain millivolt input interface and enter the historical millivolt value. 2) Press save to enter the weight input interface and enter the weight value corresponding to the millivolt number.

  • Page 27: Sensitivity And Gain Calibration Range

    GMT-P1 User’s Manual Sensitivity and gain calibration range 1) In gain calibration interface, press twice to enter and choose "2" press enter interface for manual input of sensor sensitivity and input the sensitivity of the actual sensor. 2) Press , enter the maximum range input interface and input sensor range.

  • Page 28: Remote Calibration Switch

    GMT-P1 User’s Manual 3) Press , complete gain calibration and enter serial port calibration switch. 3.6 Remote calibration switch When calibrate the transmitter over PN/EIP/EtherCAT communication, the remote calibration switch must be “ON” ,otherwise sending the calibration command will return an error.
  • Page 29 GMT-P1 User’s Manual Parameter Calibrated Value Date Remarks Decimal Point Min. Division Max. Capacity Load cell sensitivity Password...

  • Page 30: Working Parameters Setting

    GMT-P1 User’s Manual 4 Working Parameters Setting 4.1 Flow Chart of Working Parameters Setting Normal Status If F3.1(Password Switch) is ON, you should input password first. SET UP 1.Use to select between the same level. F1.1 Switch from display F1 to F1.9...

  • Page 31: Parameter Setting Method

    F3.2 to enter into F2.1. F4.1 4.2 Parameter Setting Method GMT-P1 has 2 kinds of working parameters: Selection type and data type. For selection to choose. For data type parameter in parameter interface, press type parameters, press to choose value.

  • Page 32: Descriptions Of Operation Parameters

    GMT-P1 User’s Manual Enter setting status Change OFF to ON Confirm the change Data: allows Enter setting status Confirm chage Move the blinking from 0 to 5 Adjust value allows 4.3 Descriptions of Operation Parameters Code Default Description Null The first major term of working parameter.
  • Page 33 GMT-P1 User’s Manual on the scale body. When set to 0, the zero-tracking function is disabled. Stable Range (0 ~ 9d optional) F1.3 It is stable if the change is within range. Zeroing Range (00% to 99% of Maximum capacity) F1.4...
  • Page 34 GMT-P1 User’s Manual master station during bus communication. If this parameter set to OFF, the modified parameters on the primary site do not take effect. Parameters are available only when the PN/EIP function is configured . PN Parameters: GSD1 (silver standard)- Supports full parameter INPUT and OUTPUT (80 bytes INPUT, 48 bytes OUTPUT) and acyclic parameters.For details,see...
  • Page 35 GMT-P1 User’s Manual PN communicates weight status with a seventh-bit heartbeat packet and tare instability alarm switch. (This parameter setting only effective when F1.11 communication is selected) OFF: Tare alarm is displayed when unstable . ON:The heartbeat packet is displayed.

  • Page 36: Set Point Parameters

    GMT-P1 User’s Manual Parameter password setting; This parameter is valid when F3.2 000000 F3.1 is ON Null The fourth major term of working parameter. Weight correction factor K, weight correction factor K = Expected weight/current weight range: 0-9.99999 F4.1 1.00000...
  • Page 37 GMT-P1 User’s Manual press the key to exit to P1 item,press key to the next parameter setting. In the same way, other parameters can be set. Note: There are four setpoints in total. Set point X indicates "set point 1 to 4", which can be set by users according to their needs.
  • Page 38 GMT-P1 User’s Manual 3: == Equal; when the weight is equal to Px.4, the output is valid; otherwise, it is invalid 4: >=; Bigger than or equal to; when the weight is greater than Px. 4, the output is valid, otherwise, it is invalid 5: >...

  • Page 39: O Definition

    GMT-P1 User’s Manual 5 I/O Definition 5.1 I/O Definition In the main display interface, press 4 times to display io dEF in the indicator. In this interface, press to enter the interface of custom setting of I/O module. If the password switch of working parameter F3.1 is set as ON, the password of working parameter...
  • Page 40 GMT-P1 User’s Manual setup is complete. Output/Input code table: Output Code Definition Description None No definition Stable Effective output in stable status. Overflow Effective output when the weight overflow. Effective output when set point 1 status output. Effective output when set point 2 status output.

  • Page 41: I/O Testing

    GMT-P1 User’s Manual If this signal is valid, Sp2 status will be regarded as invalid. Output valid state when comparision condition turns to invalid, and be effective again. If this signal is valid, Sp3 status will be regarded as invalid. Output valid state when comparision condition turns to invalid, and be effective again.
  • Page 42 GMT-P1 User’s Manual (5 times), Under weighing status, press then display TEST io, press enter into I/O testing interface. Normal Status Press UTT1 status flash, press UTT2 status flash. This interface shows:IN1 input valid, UTT1 output valid.

  • Page 43: Communication

    6 Communication 6.1 PROFINET Communication GMT-P1 display has two PROFINET-IO bus connections, Port1 and Port2, and can be used as a PROFINET-IO slave station to connect to the PROFINET bus. IP address can be set and viewed in Setup parameters F2.1 to F2.4; MAC address in F2.5~F2.10 to view.
  • Page 44 GMT-P1 User’s Manual D0: Weight stable marker Gross weight Gross weight ( signal integer) DInt Net weight Net weight ( signal integer) DInt Tare weight ( signal integer) Tare weight DInt Current weight Current weight, floating-point type Float Gross weight...
  • Page 45 GMT-P1 User’s Manual Offset Parameter Data type Description Weight calibration Weight ZERO Read absolute millivolts DWord calibration Weight gain Read relative millivolts DWord calibration No weight calibration No weight ZERO Read Zero calibration millivolt DWord calibration No weight gain Read...
  • Page 46 GMT-P1 User’s Manual factor value factor Weight calibration Weight ZERO Write 1 to automatically DWord calibration calibrate zero Weight gain DWord calibration Enter weight value No weight calibration No weight ZERO write Zero calibration DWord calibration millivolt Write No weight gain...
  • Page 47 GMT-P1 User’s Manual Weight correction used to correct the weight DWord factor value factor Function operation D4-D7 reserved D3: GS/NT D2: Clear tare Byte4 D1: Tare D0: zero D7:Reset IO Function operation D6:Reset All D5:Reset Calibration Byte3 D4:Reset All D0~ D3 reserved...
  • Page 48 GMT-P1 User’s Manual Custom read The master station requests the data returned by the meter, the Read out value DWord value obtained according to the "request read address". Read Write data return status 0：no register Write status error 1：register address illegal Word 2：parameter error...
  • Page 49 GMT-P1 User’s Manual The read request of the modbus DWord Read address address 6.1.1.2 GSD2 Offset Parameter Data type Description Weight, millivolt and state parameters Read Only, address) Current display weight, integer INPUT[0] : indicates The highest byte of the current weight value INPUT[1] : The second highest byte of the current weight value.
  • Page 50 GMT-P1 User’s Manual D7: If F1.11 for 0 tare alarm display, ERROR6 alarm state (when taring, current weight unstable):0 invalid, 1 valid; If F1.11 is displayed as 1 heartbeat packet, it switches between 0 and 1 at 1HZ frequency D6: ERROR3 alarm state (when taring,...
  • Page 51 GMT-P1 User’s Manual UnSTAB 4 bytes sensor millivolt data, read absolute millivolt INPUT[5]:The highest byte of the current millivolt Load cell INPUT[6]:The second highest byte of Dint millivolt the current millivolt. INPUT[7]:The sub lowest byte of the current millivolt INPUT[8]:The lowest byte of the current millivolt.

  • Page 52: 2Modbus Read Write Operate Address Sheet

    GMT-P1 User’s Manual Power-Up Zero ON/OFF range: 0-1, 0: OFF 1: ON; initial value: 0 Zero track range range: 0-9; initial value: 0 Stable range range: 0-9; initial value: 1 Zero range range: 0-99; initial value: 50 Digital Filter range: 0-9; initial value: 5 Defibrillate Filter Level range: 0-9;...
  • Page 53 GMT-P1 User’s Manual millivolts ZERO calibration Read ZERO calibration 0002-0003 millivolts millivolts Current relative Read current relative ZERO 0004-0005 ZERO millivolts millivolts gain calibration Read gain calibration millivolts 0006-0007 millivolts gain calibration Read gain calibration weight 0008-0009 weight load cell...
  • Page 54 GMT-P1 User’s Manual reserved 0018 ~ 0019 Power-Up Zero Power-Up Zero ON/OFF (0: 0020 ON/OFF OFF; 1: ON) Zeroing range ZERO track range (0-99d) 0021 ZERO track range Stable range (0-9d) 0022 Stable range Zeroing range(0-9d) 0023 digital filter parameter...
  • Page 55 GMT-P1 User’s Manual communication port. Otherwise Read Only. Read/write When turn ON, Calibration (Note: remote remote calibration parameters can be set through the edit ON/OFF 0029 ON/OFF communication port. Otherwise when1 Read Only. can write) Decimal Point address (0:0byte; Read/write Decimal Point 1:1byte;...
  • Page 56 GMT-P1 User’s Manual 0: NULL; 1:EDS1(standard); 2:EDS2(compact) PN communication weight state byte No.7 byte heart beat and tare alarm unstable shift Shift ON/OFF 0041 ON/OFF 0: tare alarm display 1: heart beat display reserved 0041 ~ 0049 Set Point1 if stable 0: No; 1: Yes...
  • Page 57 GMT-P1 User’s Manual Set Point2 valid 0059 condition Set Point2 value1 0060-0061 Set Point2 value2 0062-0063 Set Point3 if stable 0: No; 1: Yes 0064 Set Point3 mini 0-999:0-99.9s 0065 duration time Set Point3 valid 0066 condition Set Point3 value1...

  • Page 58: Device Description File Gsd

    GMT-P1 description file and connection method can download at 6.1.4 Profinet master configuration GMT-P1 Taking Siemens 1200 as the master station as an example, GMT-P1 is briefly configured as the slave station. 1) Open the Botu management software and create a new project...
  • Page 59 GMT-P1 User’s Manual 2) Click "Add New Device" on the left and select "Controller" to select the model to use the corresponding PLC...
  • Page 60 GMT-P1 User’s Manual 3) Double-click the PLC device in the left "Local Module", and select " Manage general station description files (GSD)" from the menu bar.
  • Page 61 GMT-P1 User’s Manual 4) Configuration network. Switch to Network View, find GMT-P1 Device, double-click add Device to connect the indicator to the PLC.
  • Page 62 GMT-P1 User’s Manual...
  • Page 63 GMT-P1 User’s Manual...
  • Page 64 GMT-P1 User’s Manual 5) Set the IP address and name. In the device view, double-click the PLC module/double- click the network port to Settings...
  • Page 65 GMT-P1 User’s Manual 6) Assign device names. Device view as below, right-click and select assign device Name.
  • Page 66 GMT-P1 User’s Manual 7) Configure indicator parameters and operate them. In the Device view, click "Ungrouped   Device Parameter Modify Interface _1 Property" on the left. Note:  The remote calibration ON/OFF is required to be ON to modify the calibration parameters.
  • Page 67 GMT-P1 User’s Manual 8) IO loop data operation. In the device view, view the IO address assigned to the module by the PLC. Assign I address and Q address according to IO status table. Modify...
  • Page 68 GMT-P1 User’s Manual corresponding parameter values by monitoring table. 9) Compile, download and online. After downloading, switch to online, open the monitoring table, you can view and modify the parameters of the indicator.
  • Page 69 GMT-P1 User’s Manual...

  • Page 70: Ethernet-Ip Communication

    After setting, it will take effect only after re-powering. You can also view the MAC address. 6.2.1 IO status GMT-P1 provides multi-byte IO, through these I/O enable the master station to read and control the status of the weighing display EDS1 6.2.1.1...

  • Page 71: Weight Calibration

    GMT-P1 User’s Manual Net weight Net weight ( signal integer) DInt Tare weight Tare weight ( signal integer) DInt Current weight Current weight, floating-point type Float Gross weight Gross weight, floating-point type Float Net weight Net weight, floating-point type Float...
  • Page 72 GMT-P1 User’s Manual No weight zero calibration Read zero calibration millivolt DWord No weight gain calibration Read gain calibration voltage DWord voltage value value No weight gain calibration Read gain calibration weight DWord weight value Theoretical value calibration Load cell sensitivity...

  • Page 73: Function Operation

    GMT-P1 User’s Manual Module 2: calibration and operation parameters (write register) Weight calibration Weight ZERO calibration Write 1 auto zeroing DWord Weight gain calibration Write weight value DWord No weight calibration Write Zero millivolt No weight ZERO calibration DWord No weight gain calibration...
  • Page 74 GMT-P1 User’s Manual D13: Calibration reset D12: Reset all D4-D11: Reserved D3: GS/NT D2: Clear tare D1: Clear Tare D0: Zero Write value address,refer to The request to write value of section 6.1.2 modbus address DWord the modbus address sheet.
  • Page 75 GMT-P1 User’s Manual D4-D31: Reserved D03: Weight marker D02: ZERO, (weight is in 0+/-1/4d Weight status marker Duint range) (Read Only) D01: Weight overflows bit D00: Weight stable marker: 0:STAB,1:UnSTAB absolute millivolts DWord Read absolute millivolts (Read Only) Get the value by writing the address...
  • Page 76 GMT-P1 User’s Manual (can write) D14: Parameter reset D13: Calibration reset D12: All reset D4-D11reserved D3: Gross/net D2: Clear tare D1: Ttare D0: Zeroing The request to write Write value address,refer to section value of the modbus DWord 6.1.2 modbus address sheet.

  • Page 77: Device Description File Eds

    6.3 EtherCAT Communication GMT-P1 has two bus connection ports: Port1 and Port 2, with Port1 as the entry when EtherCAT is connected. Any computer with a network interface card and embedded devices with Ethernet control can be used as a master station for EtherCAT, such as devices such as Huichuan PLC.

  • Page 78: Compact Version Parameter Address

    GMT-P1 User’s Manual 6.3.1 Compact Version Parameter address 6.3.1.1 Circular Parameter List Data Types Parameter names Parameter Description Current weight Weight currently displayed, single precision floating REAL (Read only) point type D9-D31: Reserved D8: Communication heartbeat The communication light blinks at 1HZ and the communication heartbeat...
  • Page 79 GMT-P1 User’s Manual D0: Weight stability marker Sensor millivolts DINT 4 bytes of sensor millivolts data (Read only) The master station requests the data returned by the Read out values DINT meter, and obtains the value according to the "address (read only) requested to read".

  • Page 80: Device Description File Esi

    Range: 0-1 Initial value: 0 Range: 0-1 Initial value: 0 Remote calibration switch 6.3.2 Device description file ESI The GMT-P1 equipment description file and the detailed steps for using PLC and Twincat can down load at www.gmweighing.com 6.4 CCLINK IE Communication When CCLink IE Field Basic is selected for extended communication, it can communicate with PLC.

  • Page 81: Compact Version Parameter Address

    GMT-P1 User’s Manual can be viewed in F2.5~F2.10. After the project connection is successfully established, the parameters can be configured according to the following parameter addresses This instrument occupies one link station, and each link point can reach up to 4K words. It can be applied to small-scale equipment that does not require high-speed control.
  • Page 82 GMT-P1 User’s Manual RWr4- Signed numbers, integers, four Loadcell voltage value data DWord RWr5 decimal points The master station requests the data RWr6- returned by the meter, the value Read out value DWord RWr7 obtained according to the "address requested to read"...
  • Page 83 GMT-P1 User’s Manual D3: Gross/net weight switch D2: Clear tare D1: Tare D0: Zero Write operation address for RWw0- Request written value Modbus, refer to 6.1.2 Register DWord Read/Write Operation Address RWw1 modbus address table Modbus write operation value, write this data to "modbus address...

  • Page 84: Acyclic Parameter Lists

    GMT-P1 User’s Manual 6.4.2 Acyclic parameter lists non-cyclic parameters list CCLink IE Field Basic Parameters Description Power-Up Zero ON/OFF range: 0-1, 0: OFF 1: ON; initial value: 0 Zero track range range: 0-9; initial value: 0 Stable range range: 0-9; initial value: 1 Zero range range: 0-99;...

  • Page 85: Device Description File Csp

    GMT-P1 User’s Manual ON/OFF 6.4.3 Device Description File CSP The device description file and connection method of GMT-P1 can be downloaded from the website of Shenzhen German Technology Co., Ltd. (www.szgmt.com)

  • Page 86: Password Input And Setting Reset

    GMT-P1 User’s Manual 7 Password Input and Setting Reset 7.1 Password Input (1) Calibration and working parameters setting default password: 000000. (2) User can set password in parameters when F3.1 is "ON". (3) When display is "PASS", need to input correct password to enter parameters.

  • Page 87: Factory Reset

    GMT-P1 User’s Manual Display “PASS” ， press to the password interface. Enter the six digit password with and press to save the second password . Enter the same six digit password, press to complete password setting. 7.3 Factory Reset Note: Factory reset is only for special technicists, which will reset all of parameters and...
  • Page 88 GMT-P1 User’s Manual will maybe cause not working. Take reset all for example: the same time to display‘PASS’, Press then password input. Note: In all reset interfaces,press Password input interface, input fixed password 880202, then to exit and returnto save password and enter parameter reset.

  • Page 89: Display Testing

    GMT-P1 User’s Manual 8 Display Testing The following flow chart is to test lights on main-display and status lights. Under parameter interface, press to switch to “tESt” interface. (five times) Under“tESt”interface,press to make display testing, Nixie tube display and indicator lights all shine. Now if press , display will flicker.

  • Page 90: Errors And Alarm Messages

    GMT-P1 User’s Manual 9 Errors and Alarm Messages Error ①Input error. ②wrong data beyond parameter range. Error2 The current weight value is out of zeroing range. Error3 Current weight is not stable when zeroing. Error4 Input wrong password more than 3 times.

  • Page 91: Indicator Model User-Defined Function

    If no modifications are made to the instrument model, the instrument will default to GMT-P1 (note: resetting does not reset the instrument model) Displays character comparison table...

  • Page 92: Dimension Of Indicator

    GMT-P1 User’s Manual 11 Dimension of Indicator...

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