Maintenance
When using the instrument in compliance with the instruction manual,
no special maintenance is required.
If functional errors occur after expiration of warranty, our after sales ser-
vice will repair your instrument without delay.
Cleaning
If the instrument is dirty after daily usage, it is advised to clean it by using
a humid cloth and a mild household detergent.
Prior to cleaning, ensure that instrument is switched off and dis-
connected from external voltage supply and any other instruments
connected (such as UUT, control instruments, etc.).
Never use acid detergents or dissolvants for cleaning.
Battery Replacement
Prior to storage battery replacement, disconnect the instrument
from any connected test leads.
Never try to disassemble battery cells !The battery contains highly
alkaline electrolyte. Danger of causticization ! If electrolyte gets in
contact with skin or clothing, rinse immediately with water. If elec-
trolyte gets in contact with the eyes, immediately flush by using
pure water and consult a doctor
Never try to make contact between both battery cell poles, for ex-
ample by using a wire connection. The resulting short-circuit cur-
rent is very high and causes extreme heat. Danger of fire and ex-
plosion !
• If the red LED (3) is illuminated, proceed with the battery repla-
cement as follows (see drawing below):
• Switch off the instrument.
• Loosen the screw in the instrument rear (1).
• Carefully open the casing.
9