Securing The Instrument; Battery Replacement; Technical Data Of Measuring Accessories - Benning CM 9-1 Bedienungsanleitung

before opening the instrument:
- First, remove the BENNING CM 9-1 and the two safety measuring leads
from the measuring object.
- Then disconnect the two safety measuring leads from the BENNING CM
9-1.
- Turn the rotary switch 5 to the switch setting "OFF".
The BENNING CM 9-1 is not equipped with a fuse.

9.1 Securing the instrument

Under certain circumstances safe operation of the BENNING CM 9-1 is no long-
er 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 9-1 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 replacement

Before opening the BENNING CM 9-1, make sure that it is free of

voltage! Electrical danger!
The BENNING CM 9-1 is supplied by means of two 1.5 V batteries of type AAA
(IEC LR03). Battery replacement is required, if the battery symbol
on the display 9 . Proceed as follows to replace the batteries:
- Disconnect the safety measuring leads from the measuring circuit.
- Disconnect the safety measuring leads from the BENNING CM 9-1.
- Set the rotary switch 5 to the switch setting "OFF".
- Lay the BENNING CM 9-1 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.
- Replace the exhausted batteries by two new ones of type AAA (LR03). Make
sure that the new batteries are inserted with correct polarity!
- Place the battery compartment cover onto the bottom part and tighten the
screw.
See figure 12:
Make your contribution to environmental protection! Do not dis-
pose of discharged batteries in the household garbage. Instead,

take them to a collecting point for discharged batteries and spe-
cial waste material. Please inform yourself in your community.
9.4 Calibration
Benning guarantees compliance with the technical and accuracy specifications
stated in the operating manual for the first 12 months after the delivery date.
To maintain the specified accuracy 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 unit 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,
- Maximum rated current: 10 A,
- Protective class II (), continuous double or reinforced insulation,
10/ 2019
Battery replacement
BENNING CM 9-1

appears
17