MSA Chillgard LS - Analog Signal Output Wiring

4. Connect a ground wire on the ground stud (FIGURE 2-4).
Supply earthground is installed on lug first, and all component
earthgrounds are connected afterward.
5. Route the power wiring and the ground wire through electrical entry
holes in the case bottom.
NOTE: Separate power wiring from output signal wiring.
The 24-volt power source used with this equipment must
be separated from mains by double or reinforced
insulation.
Analog Signal Output Wiring
The Chillgard LS Refrigerant Monitor is factory-configured with an
analog output. The analog output for your Chillgard LS Refrigerant
Monitor (FIGURE 1-1) is 4-20 mA, current sourcing type (standard) (4
mA = 0 ppm gas, 20 mA = 1000 ppm gas).
The output connections are located on the sensor board. Terminals (+)
and (-) are available for the signal output and ground (FIGURE 2-3).
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