Specialty Concepts DM3 - Manual (Page 11)

ALARM SET
PROGRAM PINS
HI
ALARM PROG.
MODE
LO
ALARM
DECIMAL POINT
PROGRAM PINS
CURRENT 1 CURRENT 2
PROGRAMMING PIN INSTRUCTIONS
AUX. INPUT
AUX. INPUT
FLOAT
HI ALARM
ADJUSTMENT
LO ALARM
ADJUSTMENT
GRND. LO+ HI+
DVM CONNECTION
POINTS
PROGRAM JUMPER
IN USE PROGRAM JUMPER
IN STORAGE
EXAMPLES OF HOW TO USE AND STORE
PROGRAMMING JUMPERS
IF YOU HAVE AN ACCURATE DIGITAL VOLTMETER (DVM)...
Connect your DVM (set to the 200mv range) to the appropriate pins for HI
or LO alarms. The reading you get on the DVM is the setting of that alarm.
Change this setpoint by turning the appropriate adjustment screw.
10
IF YOU DO NOT HAVE AN ACCURATE DIGITAL VOLTMETER ...
use a programming jumper to short PROG. MODE pins together. If you
have any wires connected to the CURRENT 2 input, disconnect them.
Use a programming jumper to short the appropriate HI or LO alarm pins
together. Set the DM3’s function switch to position “CURRENT 2”. The
reading you get on the DM3 display is the setting of that alarm. Change
this set-point by turning the appropriate adjustment screw.
The decimal point programming pins are factory set for
the internal 30 amp shunt or for use with the external 100
amp shunts. You only need to reprogram the decimal
point if you are using the 500 or 1000 amp external shunt.
To perform this reprogramming, remove the programming
jumper from the set of pins that correspond to the input
that the shunt is connected to. If you are using two
shunts, remove both programming pins.
The AUX input comes factory preset to
measure a system voltage. This input will divide
whatever voltage is connected to it by 1000. If
you wish to connect this input up to a shunt, or
to use this input as a meter with a full scale
range of 200mv, remove this programming
jumper.
With this programming jumper in place, the
negative side of the AUX input is connected
to system ground. If you would like this input
to float (not be connected to ground) then
remove this jumper.