Monarch Instrument DC6000 - Manual (Page 120)

Appendix B – Digital Input Voltage Adjustment
I.
Page 112
1/06/2012 REV 1.10.2
B.2 DIGITAL IO MODULE:
The digital IO module accepts 2 to 6 digital inputs depending on options. By default these inputs are set up to
accept input voltages from 12 to 24 volts dc. The user can change the input voltage range to 5 to 12 volts dc
by moving jumpers internally on the module. This involves removing the digital IO module from the recorder.
To do this, remove the screws marked B in Figure B-1 and gently pull the module from the enclosure. Note
that the rear panel is loose and not connected to the circuit board.
Once the module is removed, identify the jumpers as shown in Fig B-4. Note that there could be up to 6
jumpers present. The jumper locations are as follows:
2 Input Board:
P2 – Input 1; P3 – Input 2
Jumpers correspond to inputs from
right to left when looking at the
terminal block side of the board.
Jumpers are shown in position 1-2.
The links are as follow:
Position 2 –3 12 to 24Vdc Input
Position 1 –2 5 to 12Vdc Input
Set the jumpers as required and
reinstall the board into the recorder
chassis. Take care to align the
connector with the socket before
applying pressure to the board.
Replace the panel and the screw.
Fig B-4 Digital IO Module Jumpers (2 Channel shown)