Maintenance; Securing The Instrument; Battery Replacement - Benning IT 101 Bedienungsanleitung

9.

Maintenance

Before opening the BENNING IT 101, make sure that it is free of

voltage! Electrical danger!
Work on the opened BENNING IT 101 under voltage must be carried out by
skilled electricians with special precautions for the prevention of acci-
dents only.
Make sure that the BENNING IT 101 is free of voltage as described below
before opening the instrument:
- First remove the two safety measuring leads from the object to be meas-
ured.
- Then disconnect
BENNING IT 101.
- Turn the rotary switch J to the switch setting "OFF".

9.1 Securing the instrument

Under certain circumstances safe operation of the BENNING IT 101 is no longer
ensured, for example in the case of:
- Visible damage of the casing.
- Incorrect measurement results.
- Recognizable consequences of prolonged storage under improper condi-
tions.
- Recognizable consequences of extraordinary transportation stress.
In such cases the BENNING IT 101 must be switched off immediately, discon-
nected from the measuring points and secured to prevent further utilization.
9.2 Cleaning
Clean the exterior of the housing with a clean dry cloth (exception: special
cleaning wipers). Avoid using solvents and/or scouring agents for cleaning the
instrument. It is important to make sure that the battery compartment and bat-
tery contacts are not contaminated by leaking electrolyte.
If electrolyte contamination or white deposits occur in the area of the batteries
or battery compartment, clean them too with a dry cloth.

9.3 Battery replacement

Before opening the BENNING IT 101, make sure that it is free of

voltage! Electrical danger!
The BENNING IT 101 is powered by four 1.5 V mignon cells (IEC LR6/ type
AA). A battery replacement is required, if the battery symbol O appears on the
display unit 2 .
Proceed as follows to replace the batteries:
- Disconnect the safety measuring leads from the measuring circuit.
- Disconnect the safety measuring leads from the BENNING IT 101.
- Turn the rotary switch J to the switch setting "OFF"
- Remove the rubber protection frame N from the BENNING IT 101.
- Lay the BENNING IT 101 face down and release the screw of the battery
compartment cover.
- Lift the battery compartment cover off the bottom part.
- Remove the discharged batteries from the battery compartment.
- Then, insert the new batteries into the battery compartment at the provided
places (please observe correct polarity of the batteries).
- Lock the battery compartment cover into place on the bottom part and
tighten the screw.
- Place the BENNING IT 101 into the rubber protection frame N.
See figure 13:
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.
9.4 Checking and replacing the fuse
The condition of the fuse can be checked as follows:
- Disconnect the safety measuring leads from the measuring circuit.
- Disconnect the safety measuring leads from the BENNING IT 101.
- Select the „Ω
TEST key 8 .
- If "FUSE" is shown on the display 2 , the fuse is defective and has to be
replaced.
02/ 2011
the two
Battery and fuse replacement
" function by means of the rotary switch J and press the
BENNING IT 101
safety measuring

leads from the
21