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
GMC-I Messtechnik GmbH 45
Error Messages— LCD Connection Pictographs
Err1
All measurements
with protective
conductor
Potential difference ≥ U
L
PE (earthing contact)
(frequency f ≥ 50 Hz)
Remedy: inspect PE connection
Note: only if appears: Measurement can nevertheless be started by pressing
the
ON/START key again.
Err2
I
∆N
/ I
F
Z
L-N
/ Z
L-PE
/ R
E
1) Voltage too high (U > 253 V) for RCD test with direct current
2) U always U > 550 V with 500 mA
3) U > 440 V for I
∆N
/ I
F
4) U > 253 V for I
∆N
/ I
F
with 500 mA
Err3 I
∆N
RCD is tripped too early or is defective.
Remedy: test circuit for bias current.
Err4 Z
L-PE
RCD is tripped too early or is defective.
Remedy: test with “DC + positive half-wave”.
Err5 I
∆N
/ I
F
RCD tripped during touch voltage measurement.
Remedy: check selected nominal test current.
Err6 EXTRA → PRCD
The PRCD has been tripped.
Reason: poor contact or defective PRCD.
Err7 All except for U
Externally accessible fuse is blown.
The voltage ranges remain functional even if fuses have blown.
Special case, R
LO
: Interference voltage during measurement may result in a blown
fuse.
Remedy: replace fuse
Observe notes regarding fuse replacement in section 18.3!
Err8
I
∆N
/ I
F
Z
L-N
/ Z
L-PE
/ R
E
Frequency out of permissible range.
Remedy: Inspect mains connection.
Err9 All
Excessive temperature inside the test instrument.
Remedy: wait for test instrument to cool down.
Err9
RINS
/ RLO
Interference voltage
Remedy: device under test must be disconnected from all sources of voltage.
Err11
RINS
/ RLO
Overvoltage or overloading of the measuring voltage generator during measure-
ment of R
INS
or R
LO
Err12
I
∆N
/ I
F
Z
L-N
/ Z
L-PE
R
E
No mains connection.
Remedy: inspect mains connection.
Err13 R
LO
OFFSET measurement is not sensible.
Remedy: check system.
OFFSET measurement of RLO+ and RLO– is still possible.
Status
Error
No.
Position of the
Function Switch
Function / Meaning