20 • Chapter 3: Installation
AirLink 9850 Gas Monitor Operator’s Manual
4-20 mA Output Wiring
The AirLink 9850 outputs up to 32 4-20 mA signals (8 signals per 4-20 mA Output Terminal Board).
See page 27 for instructions to set up which channel’s readings get output from any given 4-20 mA
Output terminal.
1. Open the enclosure box to expose the Front Panel.
2. Unscrew the two thumb-screws on the Front Panel.
3. Open the Front Panel so that the 4-20 mA Output Terminal Boards are exposed.
4. Connect to the 4-20 mA Output Terminal Boards in the order shown below.
NOTE:
Each 4-20 mA Output Terminal Board has 4 jumper pin locations: JP1, JP2, JP3, and JP4.
The first board will have a jumper installed on JP1. Subsequent boards will have jumpers
installed on corresponding JP pins.
Figure 11: 4-20 mA Output Terminal Board Order
