User Manual

ManualsBrandsGOSSEN METRAWATT ManualsTest EquipmentInsulation measuring device, CAT III 600 V

6 GMC-I Messtechnik GmbH

Table of Contents

Contents Page Contents Page

1 Safety Features and Precautions ....................................... 8

1.1 Use for Intended Purpose ................................................................10

1.2 Meanings of Danger Symbols ..........................................................10

1.3 Meanings of Acoustic Warning Signals ............................................10

2 Operating Overview – Connections, Keys, Rotary Switch, Symbols 12

3 Initial Start-Up .................................................................. 16

3.1 Batteries ........................................................................................16

3.2 Activation .......................................................................................16

3.3 Setting the Operating Parameters ....................................................16

3.4 Switching the Instrument Off ...........................................................17

4 Control Functions ............................................................. 18

4.1 Selecting Measuring Functions and Measuring Ranges .....................18

4.1.1 Automatic Range Selection .............................................................18

4.1.2 Manual Measuring Range Selection .................................................18

4.1.3 Quick Measurements ......................................................................19

4.2 Zero Offset / Relative Measurements ...............................................19

4.3 Display (LCD) .................................................................................20

4.3.1 Digital Display ................................................................................20

4.3.2 Analog Display ...............................................................................20

4.4 Measured Value Storage: DATA (auto-hold / compare) ......................21

4.4.1 Saving Minimum and Maximum Values – MIN/MAX Function ............22

4.5 Measurement Data Recording .........................................................23

5 Measurements ... .............................................................. 26

5.1 Voltage Measurement ....................................................................26

5.1.1 Direct and Pulsating Voltage Measurement, V DC and V (DC+AC) .....27

5.1.2 Alternating Voltage and Frequency Measurement V AC and Hz

with Selectable Low-Pass Filter .......................................................28

5.1.3 Transient Overvoltages ...................................................................30

5.1.4 Voltage Measurements at Above 600 V ...........................................30

5.2 Resistance Measurement, 

5.3 Temperature Measurement – Temp RTD .........................................32

5.3.1 Measurement with Resistance Thermometers ..................................32

5.4 Continuity Test ..............................................................................35

5.5 Diode Testing with 2 mA Constant Current .....................................36

5.6 Capacitance Measurement ............................................................38

5.6.1 Cable Length Measurement m ........................................................38

5.7 Insulation Resistance Measurement:

in Telecommunications Networks – MISO Function .......................39

5.7.1 Connecting the Measurement Cables ..............................................40

5.7.2 Detection of Interference Voltages ..............................................40

5.7.3 Performing Insulation Resistance Measurements ..............................40

5.7.4 Ending the Measurement and Discharging .......................................42

5.8 Current Measurement ....................................................................43

5.8.1 Direct and Pulsating Current Measurement, Direct Connection,

A DC and A (DC+AC) ......................................................................44

5.8.2 Alternating Current and Frequency Measurement,

Direct Connection, A AC and Hz ......................................................45

5.8.3 Direct and Pulsating Current Measurement

with Clip-On Current Sensor, A DC and A (DC+AC) ..........................46

5.8.4 Alternating Current Measurement with Clip-On Current Sensor,

A AC and Hz ..................................................................................47