Troubleshooting

Possible Causes
Low battery charge
    
Remedy
Replace or charge the rechargeable battery

Connecting the battery to the charger unit

The single plug of the Pb battery have contacts of different sizes to prevent them being
connected incorrectly. The two-pole plug of the Pb battery can only be connected to the cable outlet 1 and  2 on the charger unit.
In order to prevent damage to the fuse of the battery, ensure that the pins of the plug are never shorted or brought into contact with conductive parts of the battery itself.

Charging the Battery

Connect the charger unit with the battery connected to the power source (mains or 24 V source); the red Charge 3 indicator light comes on and the charging process begins. The red indicator light goes out at the end of the charging. The battery now has only a very low charging current applied to it to counteract self-discharge.

Possible Causes
Missing or incorrectly connected grounding plug

Remedy
The grounding plug should be inserted until it reaches a stop

To prevent inadvertent pulling of the grounding plug from the ISOTEST test equipment, the stress relief attached to all grounding cables should be hooked to the snap link at the bag.

Possible Causes
The safety button was pressed during power-up

Remedy
Release the safety button during power-up. After the LED has changed its color from red to green, the unit is ready for use.

Possible Causes
The safety mode is enabled

Remedy
Press the safety button to exceed the first trigger point, or select the standard mode for the safety button.

Possible Causes
Readjusting the magnitude of the test voltage with the safety button depressed

Remedy
Release the safety button. After calibrating to the newly adjusted voltage, the LED illuminates green and the unit is ready for use.

Possible Causes
Continuous sparking over more than 5 seconds

Remedy
Turn the unit off and on. Avoid continuous sparking

Possible Causes
Void in the device under test

Remedy
Desired result

Possible Causes
Automatic integration of the spark gap is not possible

Remedy
Turn the unit off.
If the error message is still displayed after the unit was turned on again, ship the unit to the manufacturer for inspection.

Proper maintenance work and repairs in accordance with the regulations can only be ensured if such work is carried out by the manufacturer or by qualified and authorized service centres.

Possible Causes
Inspection due within next 4 weeks

To assist your company's quality assurance system, the LED will change its color from red to green by flashing three times after power-up of the ISOTEST test equipment, indicating that the next inspection will be due within the next 4 weeks.

If the schedule for routine maintenance was not observed, this information will also be displayed after turning on the ISOTEST test equipment. The information "Maintenance required" is indicated by 6 flashes of the LED with simultaneous changing of its color from red to green.

Remedy
To maintain the high reliability and the high quality standard of ISOTEST test equipment as long as possible, the equipment should be inspected and calibrated by the manufacturer each year.
Observing recommended inspection intervals contributes to continuous functional safety of the equipment and avoids expensive repair.
During inspections, all equipment functions are checked and the unit is calibrated. The results of an inspection are stored in a database and documented in a manufacturer certificate traceable to the PTB (Physikalisch-Technische Bundesanstalt, the German Bureau of Standards).
A learly visible label indicates the due date of the next inspection.

If your ISOTEST test equipment requires inspection or repair, please send the unit with all transportation fees prepaid to:

ELMED Dr.-Ing. Mense GmbH
ISOTEST Service
Weilenburgstrasse 39
42579 Heiligenhaus, Germany

Possible Causes
Incorrect filters sittings

Remedy
Check the filter settings and select a higher filter stage, if required. Clean and dry the device under test. Use a testing electrode with a smaller contact area. The coating is electrically conductive and cannot be tested

Possible Causes
Automatic shut-off for energy savings was enabled

Remedy
The unit must be turned on again