1. Connect the mA current meter to the instrument output, terminals
(+) and (-).
During calibration, the Chillgard LS Refrigerant Monitor is not sampling
and monitoring the intended area. Exercise caution in the area as
appropriate.
2. Connect the ZERO gas cylinder (if used) to the sample tubing.
3. Open the regulator valve to allow the ZERO gas to flow freely
to the instrument. Supply the instrument with gas for at least
five minutes. If the reading differs significantly from zero (4.0 mA),
perform the “Initial Calibration” procedure again.
4. Close the regulator valve and remove the ZERO gas cylinder from
the sample tubing.
5. Connect the 100 ppm SPAN gas cylinder to the sample tubing.
Ensure the tee is located between the cylinder and the sensing
cell.
"!
CAUTION
Figure 4-6. Span Calibration
4-12
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