Table Of Contents - Gossen MetraWatt METRAHIT ENERGY TRMS System Multimeter Operating Instructions Manual

Contents
1 Safety Features and Precautions ........................................ 7
1.1 Use for Intended Purpose ................................................................. 9
1.2 Meanings of Danger Symbols ........................................................... 9
1.3 Meanings of Acoustic Warning Signals .............................................. 9
2 Operating Overview - Connections, Keys, Rotary Switch, Symbols . 10
3 Initial Start-Up ................................................................... 14
3.1 Inserting Batteries or Rechargeable Batteries ................................... 14
3.2 Switching the Instrument On ........................................................... 14
3.3 Setting the Operating Parameters ................................................... 14
3.4 Switching the Instrument Off .......................................................... 15
4 Control Functions .............................................................. 16
4.1 Selecting Measuring Functions and Measuring Ranges .................... 16
4.1.1 Automatic Measuring Range Selection (auto-ranging) ....................... 16
4.1.2 Manual Measuring Range Selection ................................................ 16
4.1.3 Peak Value Monitoring
for Automatic and Manual Measuring Range Selection ..................... 17
4.1.4 Quick Measurements (MAN or DATA function) ................................. 18
4.2 Zero Offset / Relative Measurements - ZERO/Delta REL Function ..... 18
4.3 Display (LCD) ................................................................................. 19
4.4 Measured Value Storage: DATA (auto-hold / compare) ..................... 20
4.4.1 Saving Minimum and Maximum Values - Min/Max Function ............. 21
4.5 Measurement Data Recording - Memory Mode Operation, STORE Menu
Function ........................................................................................ 22
4.5.1 Rapid Momentary Value Acquisition for U DC and I DC ..................... 24
4.5.2 Power and Energy Measurement in the Memory Mode ..................... 24
GMC-I Messtechnik GmbH
Page Contents
5 Measurements ..................................................................25
5.1 Voltage Measurement .................................................................... 25
5.1.1 Direct Voltage, Pulsating Voltage and Crest Factor Measurement
- V DC, V (DC+AC) and CF ............................................................ 26
5.1.2 Alternating Voltage and Frequency Measurement V AC and Hz
with Selectable Low-Pass Filter, V AC + FILTER and dB V AC ........... 30
5.1.3 Mains Monitoring / Mains Disturbance Recording - PQ .................... 33
5.1.4 Mains Disturbance Recording in Memory Mode Operation ................ 35
5.1.5 Harmonic Analysis (voltage measurement) ..................................... 36
5.1.6 Frequency and Duty Cycle Measurement ........................................ 38
5.2 Resistance, Conductivity and Low-Resistance Measurement ............ 39
5.2.1 Conductivity Measurement ............................................................. 40
5.2.2 Low-Resistance Measurement with Constant Current (RPE) .............. 40
5.3 Continuity Test with Constant Current of 1 mA ............................... 41
5.4 Diode Testing with Constant Current of 1 mA ................................. 42
5.5 Temperature Measurement ............................................................ 43
5.5.1 Measurement with Thermocouples, Temp TC .................................. 43
5.5.2 Measurement with Resistance Sensors ........................................... 44
5.6 Measuring Capacitance and Cable Length in km ............................ 45
5.6.1 Cable Length Measurement in m .................................................... 46
5.7 Measurement of Active, Apparent and Reactive power - W, VA, VAr
Measurement of Active, Apparent and Reactive Energy - Wh, VAh, VArh 47
5.8 Current measurement .................................................................... 52
5.8.1 Direct Current Measurement .......................................................... 53
5.8.2 Current Measurement with Current Clamp Sensor ........................... 56
5.8.3 Current Measurement with Current Clamp Transformer ................... 58
6 Device and Measuring Parameters ...................................60
6.1 Paths to the Various Parameters .................................................... 61
6.2 List of all Parameters, Main Menus and Submenus ......................... 62

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