PEAKMETER PM7221 Manual

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Contents

1. Announcement. .................................................................................................

1.1 Safety statement .......................................................................................

1.2 Safety information ....................................................................................

2. General information .......................................................................................

2.1Description of the meter's panel ...........................................................

2.2LCD screen.....................................................................................................

3.Operating instructions ....................................................................................

3.1Auto shutdown ...........................................................................................

3.2DC voltage measurement .......................................................................

3.3DC voltage output ....................................................................................

3.4DC measurement (milliampere) ...........................................................

3.5DC measurement (milliampere)with loop power supply ..............

3.6DC output(milliampere)with loop power supply ............................

3.7DC (milliampere) analog output with Ma analog output

current .........................................................................................................

4.Technical parameters .......................................................................................

4.1DC voltage measurement/output .......................................................

4.2DC current input/output .......................................................................

4.3Circuit power ...............................................................................................

5.General specification ......................................................................................

6.Maintenance .....................................................................................................

6.1Cleaning .......................................................................................................

6.2Calibration ....................................................................................................

6.3Battery replacement .................................................................................

6.4Fuse replacement .......................................................................................

PM7221

Table of Contents

Summary of Contents for PEAKMETER PM7221

Page 1: Table Of Contents
PM7221 Contents 1. Announcement....................1.1 Safety statement ..................1.2 Safety information ..................2. General information ..................2.1Description of the meter's panel ............2.2LCD screen..................... 3.Operating instructions ..................3.1Auto shutdown ................... 3.2DC voltage measurement ............... 3.3DC voltage output ..................3.4DC measurement (milliampere) ............
Page 2: Announcement
1. Statement Unless otherwise permitted and agreed in writing, no part of this Operation Manual shall be copied in any forms (including storing and retrieving this manual or translating it into any other languages) in accordance with International Copyright Law. This Operation Manual is subject to change without notice from time to time in its future versions.
Page 3: Safety Information
1.2 Safety information This meter can only be installed and operated by qualified specialists in accordance with the safety precautions and regulations and the required technical specifications. At the same time, the use of this meter requires stringent compliance with all laws and safety regulations for specific applications.
Page 4: General Information
Do not attempt cleaning with abrasives or solvents. Instead, you may use a mild detergent or a damp cloth. Confirm that the testing terminals to be used, functions and measuring ranges are correct, when using the meter for measurement or output. 2.
Page 5: Description Of The Meter's Panel
2.1 Description of the meter's panel INPUT OUTPUT COLD LOW HIGH I TYPE J K T E R S B N L U C BP XK GDPM 2W3W4W Ni120 Pt1000 Pt200 Pt500 385 392 Cu100 Cu50 YSI400 VOLT/mA CALIBRATOR V/mV INPUT OUTPUT Display screen...
Page 6: Lcd Screen
2.2 LCD screen INPUT OUTPUT Negative sign Battery Low indicator Data display area Auto power off indicator Measurement status Displayed unit indicator Output status indicator 3. Operating instructions 3.1 Auto shutdown When the meter is left idle for five minutes, the meter will automatically be shut down to extend the batteries' service life.
Page 7: Dc Voltage Measurement
2.The auto power off indication on the display screen will disappear. 3.The reboot after shutdown will resume the function of auto power off, and the auto power off indication will appear on the display screen. INPUT VOLT/mA CALIBRATOR V/mV INPUT OUTPUT 3.2 DC voltage measurement 1.
Page 8: Dc Voltage Output
4.Connect test lines as shown in the figure on the right hand. 5. Capture measurement results on the display screen. 3.3 DC voltage output 1.Power on the meter. INPUT 2.Press the key to switch to output status and the word OUTPUT "OUTPUT"...
Page 9: Dc Measurement (Milliampere)
3.4 DC measurement (milliampere) When external power is supplied to the circuit to be measured, please choose this method to measure current. 1. Power on the meter. INPUT 2.Press the key to switch to measurement status and the OUTPUT word "INPUT" will appear on the display screen. 3.Press the key in accordance with the measuring range and switch to "MA"...
Page 10: Dc Output(Milliampere)With Loop Power Supply
2.Press the key to switch to measurement status and the word INPUT OUTPUT "INPUT" will appear on the display screen. 3.Press the key in accordance with the measuring range and switch to "MA" or "mA%" measuring range. 4.Connect test lines as shown in the figure on the right hand. 5.
Page 11 1.Power on the meter. INPUT 2.Press the key to switch to output status and the word OUTPUT "OUTPUT" will appear on the display screen. 3.Press the key in accordance with the measuring range and switch to "MA" or "mA%" measuring range. 4.Connect test lines as shown in the figure on the right hand.
Page 12: Dc (Milliampere) Analog Output With Ma Analog Output Current
3.7 DC (milliampere) analog output with Ma analog output current If the external loop power of 24 to 30V is used, current analog mode shall be used. 1. Power on the meter. 2.Press the key to switch to output status and the word INPUT OUTPUT "OUTPUT"...
Page 13: Technical Parameters
4.Technical parameters Accuracy: ± (% reading+ digit) Ambient temperature: 18℃～28℃ Relative humidity: 80%. 4.1DC voltage measurement/output Measuring range Resolution Precision ± (% reading + digit) 100 mV 0.02 % + 2 0.01 mV 0.02 % + 2 10 V 0.001 V Input resistance: 1MΩ...
Page 14: Maintenance
Operating altitude: up to 2000 m Temperature coefficient: -10℃ to 18 ℃ and 28 ℃ to 55℃; measuring range ±0.005 %/℃ Relative humidity: 95% ( up to 30℃), 75% (up to 40℃), 45% (up to 50℃), and 35% (up to 55℃) Power requirements: 4X1.5V AA batteries Dimensions: 194mm X 94mm X 54mm Weight: 360g (exclusive of batteries)
Page 15: Fuse Replacement
6.4 Fuse replacement Warning To avoid personal injury or damage to the calibrator, you must use the 125mA/250V fast-acting fuse. Voltage current signal source Operation Manual Before replacing fuse, turn off the meter, unscrew the bolts at the back of battery cover and remove battery cover.