Phase Test; Maintenance; Securing The Device - Benning CM 1-3 Bedienungsanleitung

BENNING CM 1-3.
- For a standard Si diode applied in conduction direction, a conduction
voltage between 0.400 V and 0.900 V is displayed. „000" indicates a short-
circuit inside the diode, „OL" indicates an interruption inside the diode.
- For a diode applied in reverse direction, „OL" is indicated. If the diode is
defective, „000" or other values are indicated.
See figure 6:
8.6 Continuity tests with buzzer
- Select the function (
BENNING CM 1-3 and press the HOLD
- Connect the black safety measuring lead to the COM jack 6 of the
BENNING CM 1-3.
- Connect the red safety measuring lead to the jack for V, Ω 7 of the
BENNING CM 1-3.
- Bring the safety measuring leads into contact with the measuring points. If
the line resistance between the COM jack 6 and the jack for V, Ω 7 falls
below 50 Ω, the integrated buzzer of the BENNING CM 1-3 sounds.
See figure 6:
8.7 Voltage indicator
The voltage indicator function is possible from each position of the rotary switch.
No measuring leads are required as voltage indicator (non-contact detection
of an alternating field). The detector is located on the upper part of the device
behind the LED. By pressing the „VoltSensor" key 5, the display indication
disappears (if the display is switched on). If a phase voltage is localized, this is
indicated by an acoustic signal and a red LED signal J. An indication is made
in earthed AC current networks only! The phase can be determined by means
of a single-pole measuring lead.
Practical hint:
Interruptions (cable breaks) in cables lying around openly such as e.g. cable
reels, fairy lights etc. can be traced from the feeding point (phase) to the point
of interruption.
Functional range: ≥ 230 V
See figure 7:
8.7.1

Phase test

- Connect the black safety measuring lead to the COM jack 6 of the
BENNING CM 1-3.
- Bring the safety measuring lead into contact with the measuring point of the
system part and press the „VoltSensor" key 5.
- If the red LED lights J and if there is an acoustic signal, the phase of an
earthed AC voltage is applied to this measuring point (system part).
9.

Maintenance

Before opening the BENNING CM 1-3, strictly observe that the
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device is free of voltage! Electrical danger!
Working on the opened BENNING CM 1-3 under voltage must be carried out
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.
09/ 2013
Diode test/ continuity test with buzzer
) by means of the rotary switch 2 of the
Diode test/ continuity test with buzzer
Voltage indicator with buzzer
BENNING CM 1-3
-key „continuity test".
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