5.0 Maintenance
When using UNITEST 2000 testers in compliance with the in-
struction manual, no particular maintenance is required. If func-
tional errors occur during normal operation, stop using it and
contact your nearest authorized service center.
5.1 Cleaning
Prior to cleaning, remove voltage tester from all measurement
circuits. If the instrument is dirty after daily usage, it is advise-
able clean it by using a damp cloth and a mild household deter-
gent. Never use acid detergents or dissolvents for cleaning.
After cleaning, do not use the voltage tester for a period of ap-
prox. 5 hours.
5.2 Calibration Interval
The voltage testers must be calibrated periodically and chec-
ked by our service department at regular intervals to ensure the
specified accuracy of measurement results. We recommend a
calibration interval of one year.
5.3 Battery Replacement
If no signal sound is audible when shorting the test probes and
the LED (7) is not illuminated, proceed with the battery repla-
cement.
Completely disconnect UNITEST 2000 from the measu-
rement circuit.
Turn the battery case in direction of the arrow (e.g. using
a coin). Then open and remove it.
Remove discharged batteries.
Replace with new batteries, type 1.5V IEC LR03 AAA
respecting correct polarity.
Insert the battery case and close it.
Please consider your environment when you dispose
of your one-way batteries or accumulators. They be-
long in a rubbish dump for hazardous waste. In most
cases, the batteries can be returned to their point of
sale.
Please, comply with the respective valid regulation regar-
ding the return, recycling and disposal of used batteries
and accumulators.
1,5 V Micro IEC LR03
+
1,5 V Micro IEC LR03
+
LR03
OPEN
OPEN
1
2
3
4
17
PTDB67410017-04.qxd 30.09.2005 12:08 Uhr Seite
