Maintenance; Securing The Instrument; Battery Replacement - Benning IT 100 Bedienungsanleitung

- The battery capacity is indicated in the display as percentage value (0 - 100 %).
- The batteries must be replaced immediately when the battery capacity is 0%.
See Fig. 7:
9.

Maintenance

Before opening the BENNING IT 100, make quite sure that it is

disconnected from all voltages! Electric danger!
Work on the opened BENNING IT 100 under voltage may be carried out only by
skilled electricians with special precautions for the prevention of accidents.
Make the BENNING IT 100 voltage free as follows before opening the instru-
ment:
- First disconnect the two safety measuring cables from the measuring
point.
- Then disconnect
BENNING IT 100
- Turn the rotary switch to the switch  setting "0".

9.1 Securing the instrument

Under certain circumstances safe operation of the BENNING IT 100 is no longer
ensured, for example in the case of:
- Visible damage of the casing.
- Incorrect measurement results.
- Recognisable consequences of prolonged storage under improper conditi-
ons.
- Recognisable consequences of extraordinary transportation stress. In such
cases the BENNING IT 100 must be switched off immediately, disconnected
from the measuring point and secured to prevent further utilisation.
9.2 Cleaning
Clean the casing externally with a clean dry cloth (exception: special cleaning
wipers). Avoid using solvents and/or scouring agents for cleaning the instru-
ment. It is important to make sure that the battery compartment and battery
contacts are not contaminated by leaking electrolyte.
If electrolyte contamination or white deposits are present in the region of the
batteries or battery casing, clean them too with a dry cloth.

9.3 Battery replacement

Before opening the BENNING IT 100, make quite sure that it is

voltage free! Electric danger!
The BENNING IT 100 is powered by six 1.5 V Mignon cells (IEC/ DIN R6/
LR6). The batteries must be replaced when the battery symbol is displayed
permanently in the display and all segments are extinguished (see Section
5.1.15 and Section 8.6).
Proceed as follows to replace the batteries:
- Disconnect the safety measuring cables from the measuring circuit.
- Disconnect the safety measuring cables from the BENNING IT 100.
- Turn the rotary switch  to the switch setting "0".
- Lay the BENNING IT 100 face down and release the slot screws of the
battery compartment cover.
- Lift the battery compartment cover off the bottom section.
- Take the battery holder out of the battery compartment and remove the
discharged batteries.
- Insert the new batteries into the battery holder, observing correct polarity as
marked on the inside of the battery holder.
- Place the battery holder into the battery compartment, making sure that no
battery connecting wires are pinched between the casing parts. Place the
battery compartment cover onto the bottom part and tighten the screws.
See Fig. 8:
Make your contribution to environmental protection! Do not
dispose of discharged batteries in the household garbage.

Instead, take them to a collecting point for discharged batteries
and special waste material. Please inform yourself in your
community.
11/ 2004
Measuring the battery capacity
the two
Battery replacement
BENNING IT 100
safety measuring

cables from the
17