Benning CM 9, Operating Manual

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11/ 2008 BENNING CM 9 8
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2. Safety note
The instrument is built and tested in accordance with
DIN VDE 0411 part 1/ EN 61010-1
and has left the factory in perfectly safe technical state.
To maintain this state and ensure safe operation of the appliance tester, the user
must observe the notes and warnings given in these instructions at all times.
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WARNING! Be careful when working with bare conductors or
main line carrier! Contact with live conductors will cause an
electric shock!
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The BENNING CM 9 may be used only in power circuits within
the overvoltage category III with a conductor for 300 V AC max.
to earth.
Remember that work on electrical components of all kinds is
dangerous. Even low voltages of 30 V AC and 60 V DC may be
dangerous to human life.
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Before starting the appliance tester up, always check it for
signs of damage.
Should it appear that safe operation of the appliance tester is no longer possible,
it should be shut down immediately and secured to prevent it being switched
on accidentally.
It may be assumed that safe operation is no longer possible:
- if the instrument show visible signs of damage
- if the appliance tester no longer functions
- after long periods of storage under unfavourable conditions
- after being subjected to rough transport
- the device is exposed to moisture.
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Maintenance:
Do not open the tester, because it contains no components
which can be repaired by the user. Repair and service must be
carried out by qualified personnel only!
3. Scope of delivery
The scope of delivery for the BENNING CM 9 comprises:
3.1 One BENNING CM 9,
3.2 One compact protective pouch,
3.3 Two 1.5-V-micro-batteries/ type AAA (IEC LR 03) fitted in the unit as
original equipment,
3.4 One operating instructions manual
Parts subject to wear:
- The BENNING CM 9 is supplied by two 1.5 V micro batteries/ type AAA (IEC
LR 06).
4. Description of appliance tester
See figure 1: Appliance front face
The display and operator control elements specified in Fig. 1 are designated
as follows:
1
Measuring pliers , for clamping on the current-carrying conductors.
2
Opening lever , for opening and closing the current probe.
3
Digital display ,
4
APO , Auto Power Off is activated (device will switch off after 20 minutes)
5
Battery status indication , appears when the battery is discharged,
6
AutoRange , AutoRange is activated
7
AUTO BACKLIT , sensor of the automatic background lighting
8
Low­pass filter (50­60Hz) active , low-pass filter with a limit frequency of
approx. 100 Hz and -24 dB/octave
9
Compare , comparator is active (comparative values: 0.25 mA, 0.5 mA and
3.5 mA)
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Hold , is indicated when "Hold" is activated,
K
AutoHold , is indicated when "AutoHold" is activated,
L
PeakHold , is indicated when the automatic peak value storage is activated,
M
RANGE , deactivate AutoRange, select measuring ranges and activate
AutoRange
N
Wide/50­60Hz, Compare , activate and deactivate the low-pass,