Detcon DM-600IS User Manual
Page 21
DM-600IS
DM-600IS Instruction Manual
Rev 1.5.9
Page 17 of 37
Figure 8 Jumper Tab Positions on Term Board
Note: If a voltage signal output is desired in place of the 4-20mA output, a 1/4 watt resistor
must be installed in position R1 of the terminal board. A 250
Ω
resistor will provide a 1-5V
output (– to mA). A 100
Ω
resistor will provide a .4-2V output, etc. This linear signal
corresponds to 0-100% of scale (see Figure 8).
e) Program the alarms via the gold plated jumper tab positions located on the CPU board (see Figure 9).
Alarm 1 and Alarm 2 have three jumper programmable functions: latching/non-latching relays,
normally energized/normally de-energized relays, and ascending/descending alarm set points. The
fault alarm has two jumper programmable functions: latching/non-latching relay, and normally
energized/normally de-energized relay. The default settings of the alarms (jumpers removed) are
normally de-energized relays, non-latching relays, and alarm points that activate during descending
gas conditions.
Figure 9 Alarm Programming Jumpers