Safetytest 1ST - Error Messages, Removing Faults; The Display Remains Dark; Contact Current Measurement Larger Than 0,5 mA; Leakage Current Measurement Shows F as a Result

SAFETYTEST 1ST User Manual SAFETY
TEST
SAFETYTEST GmbH June 15
th
2015 Page 21 of 22
13 Error messages, Removing Faults
13.1 The display remains dark
Note: Possibly there is no N connection on the mains socket. Possibly one of the fuses of the
tester has blown.
13.2 Touch current display is 0,000 mA
This is no error but the safe condition.
13.3 Contact current measurement larger than 0,5 mA
Note! Do not touch the appliance under test; there is a hazardous voltage on the accessible
parts!!!
Disconnect the appliance from mains!!!
Perform an insulation resistance measurement between the accessible conductive parts and
mains of the unit under test. While performing the insulation resistance measurement all
switches and contactors have to be closed or bridged in order to test all parts of the isolation.
The measurement value should exceed 2 MΩ. After the insulation resistance measurement
perform a substitute leakage measurement. Then do a touch current measurement. The
current must be less than 0,5 mA.
13.4 Leakage current measurement shows “F“ as a result
The tester regards the heating power when performing the test. A value of 1 mA/kW is
established as the limit. Check the measurement value to the allowed limits.
If it exceeds the value, disconnect the unit under test from mains.
Do an insulation resistance measurement LN-PE.
All switches have to be closed, internal contactors bridged.
Also measure the capacitance between LN and PE.
Check the mains voltages with a Multimeter.
If the tester display is incorrect send it in for servicing.
14 Spare Parts
ACHTUNG!!!
Observe the warnings of chapter 1!
Use only spare parts supplied by the manufacturer, see chapter 1!
The tester may be serviced only by the manufacturer or by a service shop authorised by the
manufacturer.
15 Technical Data
Mains connection: AC 230V +/- 10%.
Switching current: Mains Integrated relay 16A.
Temperature: 0°C – 40°C.
Measurements (Error max. 1% of +5% of measured value):
PE conductivity: 0,000 Ohm ...4,000 Ohm. OC voltage 6V, Current 200mA DC.
Insulation resistance measurement: 0,00MOhm...20,00MOhm
Oper. circuit voltages 500V, 1000V, Short circuit current 1,5 mA.
Equivalent leakage current: 0,00mA ...20,00 mA, Open circuit voltage approx. ca. 230V.
Differential current: 0,00mA...20,00mA. Filter characteristic according to DIN VDE 0404 for
correct evaluation of the harmonic currents.
Contact current: 0,000mA ... 4,000mA