Table Of Contents; Xtra , Metrahit Etech And Metrahit Especial; Xtra And Metrahit Etech - Gossen MetraWatt METRAHIT EXTRA Operating Instructions Manual

Table of Contents

Contents
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 Inserting Batteries or Rechargeable 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 (METRAHIT E
6
Page Contents
5
5.1
5.1.1 Direct and Pulsating Voltage Measurement, V DC and V (DC+AC) .....27
5.1.2 Alternating Voltage Measurement with 1 M
5.1.3 Alternating Voltage and Frequency Measurement V AC and Hz
5.1.4 Transient Overvoltages ...................................................................33
5.1.5 Voltage Measurements at Above 1000 V .........................................33
5.1.6 Frequency and Duty Cycle Measurements
5.2
5.3
5.4
5.5
5.5.1 Measurement with Thermocouples, Temp TC ..................................38
5.5.2 Measurement with Resistance Sensors
5.6
5.7
5.7.1 Direct and Pulsating Current Measurement, Direct Connection,
only) .....................23
XTRA
Measurements ................................................................. 26
Voltage Measurement ....................................................................26
and Frequency Measurement with Selectable Low-Pass Filter
(METRAHIT E , METRAHIT E
XTRA TECH
METRAHIT E only) ...............................................................28
SPECIAL
with Selectable Low-Pass Filter
(METRAHIT E , METRAHIT E
XTRA TECH
METRAHIT E only) ...............................................................30
SPECIAL
(METRAHIT E only) ..................................................................34
XTRA
Resistance Measurement, 
Continuity Test ..............................................................................36
Diode Testing with a Constant Current of 1 mA ...............................37
Temperature Measurement ............................................................38
(METRAHIT E and METRAHIT E
XTRA
Capacitance Measurement
(METRAHIT E and METRAHIT E
XTRA
Current Measurement ....................................................................41
A DC and A (DC+AC) (METRAHIT E
METRAHIT E only) ...............................................................42
SPECIAL
Page
Load Resistance
W
and
and
only) ................................39
TECH
only) ................................40
TECH
, METRAHIT E and
XTRA TECH
GMC-I Messtechnik GmbH