User Manual
Table Of Contents
- 1 Scope of Delivery
- 2 Application
- 3 Safety Features and Precautions
- 4 Initial Start-Up
- 5 General Notes
- 5.1 Connecting the Instrument
- 5.2 Automatic Settings, Monitoring and Shut-Off
- 5.3 Measurement Value Display and Memory
- 5.4 Testing Earthing Contact Sockets for Correct Connection
- 5.5 Help Function
- 5.6 Setting Parameters or Limit Values using RCD Measurement as an Example
- 5.7 Freely Selectable Parameter Settings or Limit Values
- 5.8 2-Pole Measurement with Fast or Semiautomatic Polarity Reversal
- 6 Measuring Voltage and Frequency
- 7 Testing RCDs
- 8 Testing of Breaking Requirements for Overcurrent Protective Devices, Measurement of Loop Impedance and Determination of Short-Circuit Current (functions ZL-PE and IK)
- 9 Measuring Line Impedance (ZL-N function)
- 10 Earthing Resistance Measurement (RE function)
- 11 Measurement of Insulation Resistance
- 12 Measuring Low-Value Resistance up to 200 Ohm (protective conductor and equipotential bonding conductor)
- 13 Special Functions – EXTRA Switch Position
- 14 Database
- 15 Attaching the Test Probe Holder to the Carrying Strap
- 16 LED Indications, Mains Connections and Potential Differences
- 17 Characteristic Values
- 18 Maintenance
- 19 Appendix
- 19.1 Tables for Determining Maximum or Minimum Display Values in Consideration of Maximum Measuring Uncertainty
- 19.2 At which values should/must an RCD actually be tripped? Requirements for Residual Current Devices (RCDs)
- 19.3 Periodic Testing per DGUV Regulations 3 (formerly BGV A3) – Limit Values for Electrical Systems and Operating Equipment
- 19.4 Optional Accessories (not included)
- 19.5 List of Abbreviations and their Meanings
- 19.6 Keyword Index
- 19.7 Bibliography
- 20 Repair and Replacement Parts Service Calibration Center* and Rental Instrument Service
- 21 Recalibration
- 22 Product Support
44 GMC-I Messtechnik GmbH
Mains Connection Test — 3-Phase System — LCD Connection Pictographs
Is dis-
played
lc20
U
(3-phase measurement)
Clockwise rotation
Is dis-
played
lc21
U
(3-phase measurement)
Counter-clockwise rotation
Is dis-
played
lc22
U
(3-phase measurement)
Short between L1 and L2
Is dis-
played
lc23
U
(3-phase measurement)
Short between L1 and L3
Is dis-
played
lc24
U
(3-phase measurement)
Short between L2 and L3
Is dis-
played
lc25
U
(3-phase measurement)
Conductor L1 missing
Is dis-
played
lc26
U
(3-phase measurement)
Conductor L2 missing
Is dis-
played
lc27
U
(3-phase measurement)
Conductor L3 missing
Is dis-
played
lc28
U
(3-phase measurement)
Conductor L1 to N
Is dis-
played
lc29
U
(3-phase measurement)
Conductor L2 to N
Is dis-
played
lc30
U
(3-phase measurement)
Conductor L3 to N
Battery Test
Is dis-
played
All
Safety Shutdown
(Rechargeable) battery voltage is less than or equal to 8.0 V.
Reliable measurement is no longer possible.
Storage of measured values to memory is disabled.
Remedy: Rechargeable NiMH batteries must be recharged, or batteries must be
replaced towards the end of their service life.
PE Test
LCD LED
Is displayed
LIMIT
Lights up
red
U
(single-phase
measurement)
Potential difference ≥ 45 V to PE (earthing contact)
Frequency f ≥ 50 Hz
or
If L is correctly contacted and PE is interrupted (frequency f ≥ 50 Hz)
Status
Error
No.
Position of the
Function Switch
Function / Meaning
PE