Sigtronics DVM-200 - Manual (Page 2)

SIGTRONICS’ DVM-200 INSTALLATION INSTRUCTIONS
The Sigtronics DVM-200 Digital Voltmeter is de-
signed for mounting in the conventional 2¼” instru-
ment panel cutout. Parts Supplied: backlighting kit,
power supply cable, and 4 ea. mounting screws.
BACK LIGHTING KIT - Prior to mounting the DVM,
determine the aircraft’s electrical system voltage.
Then select the proper voltage lamp from the
backlighting kit. The kit consists of a lamp socket and
two wedge base incandescent lamps.
For 12V electrical systems, install the #73 lamp into
the lamp socket. A 24V system requires the #85 lamp.
(The lamp identification numbers appear on the bulb’s
glass envelope).
Install the lamp/socket assembly into the hole on
the rear of the instrument case by inserting and
rotating 1/8 turn clockwise.
PIN NO. COLOR FUNCTION CONNECT TO
1 RED
DVM Power Input
12V or 24V Power through 1 amp inline fuse or
appropriate circuit breaker.
2 BLACK DVM Power Ground Aircraft Chassis Ground
3 WH/RED DVM Back-Light Power Avionics Panel Lighting Dimmer Control
4 WH/BLACK DVM Back-Light Ground Aircraft Chassis Ground
ELECTRICAL CONNECTIONS