by skilled electricians special precautions for the prevention of accidents
only!
Make sure that the BENNING CM 1-3 is free of voltage as described below
before opening the device:
-
First, remove both safety measuring leads from the object to be measured.
-
Then, remove both safety measuring leads from the BENNING CM 1-3.
-
Switch the rotary switch 2 to position „OFF".
9.1 Securing the device
Under certain circumstances, safe operation of the BENNING CM 1-3 might no
longer be ensured, e.g. in case of:
-
visible damages of the housing,
-
incorrect measuring results,
-
recognizable consequences of prolonged storage under inadmissible condi-
tions and
-
recognizable consequences of extraordinary stress due to transport.
In such cases, immediately switch off the BENNING CM 1-3, disconnect it from
the measuring points and secure it against further use.
9.2 Cleaning
Clean the exterior of the device with a clean dry cloth (exception: special
cleaning wipers). Do not use any solvents and/or abrasives to clean the device.
Make sure that the battery compartment and the battery contacts are not con-
taminated by leaking battery electrolyte.
If there are electrolyte contamination or white deposits in the area of the battery
or the battery compartment, clean these areas as well by means of a dry cloth.
9.3 Battery replacement
Before opening the BENNING CM 1-3, strictly observe that the
device is free of voltage! Electrical danger!
The BENNING CM 1-3 is supplied by means of two integrated 1.5 V micro
batteries. Battery replacement (see figure 8) is required, if the battery symbol
appears on the display 3.
Proceed as follows to replace the battery:
-
Disconnect the safety measuring leads from the measuring circuit.
-
Remove the safety measuring leads from the BENNING CM 1-3.
-
Switch the rotary switch 2 to position „OFF".
-
Put the BENNING CM 1-3 face down and unscrew the screw of the battery
compartment cover.
-
Lift off the battery compartment cover from the bottom part of the battery
compartment.
-
Remove the discharged battery from the battery compartment.
-
Insert the new batteries into the battery compartment observing correct
polarity.
-
Lock the battery compartment cover into place on the bottom part and
tighten the screw.
See figure 8:
Make your contribution for environmental protection! Do not
dispose of discharged batteries via the household waste. Instead,
return them to a collecting point for discharged batteries or spezial
waste. Please look for information in your community's facilities.
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 accuracy of the measuring results, the device must be recalibrated
in regular intervals by our factory service. We recommend recalibrating the
device once a year. For this purpose, send the device to the following address:
Benning Elektrotechnik & Elektronik GmbH & Co. KG
Service Center
Robert-Bosch-Str. 20
D - 46397 Bocholt
10. Technical data of 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,
04/ 2019
Battery replacement
BENNING CM 1-3
15