Battery Change; Technical Data Of The Measuring Accessories - Benning CM 7 Instrucciones De Servicio

Make the BENNING CM 7 voltage free as follows before opening the instru-
ment:
- First remove the two safety measuring lines from the object to be measured.
- Then disconnect
BENNING CM 7.
- Turn the rotary switch  to the switch setting "OFF".
9.1 Securing the instrument
Under certain circumstances safe operation of the BENNING CM 7 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 condi-
tions.
- Recognisable consequences of extraordinary transportation stress.
In such cases the BENNING CM 7 must be switched off immediately, discon-
nected from the measuring points 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 change

Before opening the BENNING CM 7, make quite sure that it is

voltage free! Electrical danger!
The BENNING CM 7 is fed by a 9 V block battery.
A battery change (see Figure 7) is required, if the battery symbol  appears
in the display .
Proceed as follows to replace the batteries:
- Disconnect the safety measuring cables from the measuring circuit.
- Disconnect the safety measuring cables from the BENNING CM 7.
- Set the rotary switch  to the switch setting "OFF".
- Lay the BENNING CM 7 face down and release the screws of the battery
compartment cover.
- Lift the battery compartment lid (in the housing recess area) from the bottom
section.
- Lift the discharged battery from the battery compartment and disconnect the
battery supply lines from the battery.
- The new battery has to be connected to the battery supply lines, and
arrange these such that they are not crushed between the housing parts.
Then place the battery into the battery compartment provided for this pur-
pose.
- Place the battery compartment cover onto the bottom part and tighten the
screw.
See figure 7:
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 Calibration
To maintain the specified precision of the measurement results, the instrument
must be recalibrated at regular intervals by our factory service. We recommend
a recalibration interval of one year. Send the appliance to the following address:
Benning Elektrotechnik & Elektronik GmbH & CO. KG
Service Centre
Robert-Bosch-Str. 20
D - 46397 Bocholt

10. Technical data of the measuring accessories

- Standard: EN 61010-031,
- Maximum rated voltage to earth () and measuring category:
With push-on caps: 1000 V CAT III, 600 V CAT IV,
Without push-on caps: 1000 V CAT II,
02/ 2011
the two
Battery replacement
BENNING CM 7
safety measuring

cables from the
15