Operating Elements; Adjustment - Conrad 13 13 69 Bedienungsanleitung

densation water could damage the unit. Allow the unit to
come to room temperature before switching it on.

4. Operating elements

LCD
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1 3-3/4-digit LCD display (liquid crystal display) with bar graph
indicator below (fast-reaction trend indicator)
2 External connection strip with the following pin lay-out (rear
view, from right to left):
3 V = +3 V DC (stabilised) power input
GND = Ground (earth, 3 V power negative)
COM = Common (measurement input reference level)
N.C. = not connected
N.C. = not connected
V or AC IN = measurement input
3 6-pin terminal = not connected (NC)
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5. Installation, adjustment, putting into service,

5.1 Adjustment

Because the panel meter is equipped with an Auto Range func-
tion, measurement range switching and decimal point positio-
ning are not required. The panel meter always sets the correct
measuring range automatically.
3 V
GND
COM
N.C.
N.C.
5.2 Installation
2
Vi
Mounting dimensions comply with DIN 43700, Type 2. The panel
meter is supplied in a partially-disassembled condition. To install,
proceed as follows:
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a) Mount the panel meter in the case, panel or switching cabinet
cut-out so that the display can be read. When the panel meter
is fitted into the case cut-out (without excessive play/slippage),
position the fixing bars (sliding guide) transversely on the
panel meter and secure each of the bars with a knurled nut.
b) After successfully mounting into the case (panel, switching
cabinet or similar) cut-out, solder the (voltage-free) power
leads to the panel meter observing without fail the correct
polarity, i.e. "-" to "GND" and "+" to "3V".
c) Next, solder the (voltage-free) measurement leads to "COM"
and "V" observing correct polarity.
d) After making the above connections, examine the solder joints
for "cold" soldering, broken wires and short-circuits to adja-
cent conductors.
performing measurements
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