Channel 4:
The input of the measured signal (taken from the microphone preamplifier):
TNC connector (external view)
Table C.8.2. Pin-out of the TNC connector
Power supply (Ext. Pow.)
Instrument is dedicated for the operation from the internal replaceable battery.
Instrument autonomy is operating mode depending.
Power consumption from 6 V source: < 200 mA@6V (at + 20C)
So Typical operating time from 4 x AA alkaline batteries ensures will be about 10 and 8 hours respectively.
For the temperatures below 0C operating time can decree (depending on the batteries).
Instrument can be also powered from the external source (e.g. SA 17 or car battery) with the DC Voltage from
6 V to 24 V connected to Ext. Power socket. The red-colour indicator named as EXT. POWER and placed on
the bottom of instrument’s keyboard. should be switched on after connecting the external power source to the
instrument.
Voltage ripple should not exceed 5%.
Power requirement is voltage dependant:
Meter Mode - < 90 mA@12V (at + 20C)
Analyser Mode - < 110 mA@12V (at + 20C)
Meter Mode - < 50 mA@24V (at + 20C)
Analyser Mode - < 60 mA@24V (at + 20C)
Power Supply connector 5.5 / 2.1 mm (external view)
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