Initial Calibration Procedures
During the initial calibration procedures, alarm relays of any connected
control instrumentation may activate. Disconnect or disable any
equipment or alarms.
The following equipment is required for initial calibration:
• Tubing Assembly with calibration adapter (FIGURE 4-1)
• Calibration Gas
• Flow Controller (0.25 LPM) (FIGURE 4-1)
• Meter capable of monitoring the output in milliamps
• Calibration box (P/N 10035292)
• Nafion
®
Tubing (P/N 813628) (optional).
Preparation for Calibration
To verify the instrument is operating properly and to make initial
calibration adjustments, perform the following:
1. Remove the light gray cover to open the enclosure.
Do not remove the cover unless the instrument is protected from
splashing, spraying, or dripping water; otherwise, damage to the internal
components may result.
2. Deactivate the equipment connected to the outputs, or disconnect
the wiring to the outputs.
If any control instruments connected to the Chillgard LS Refrigerant
Monitor are wired to external devices (e.g., horns, exhaust fans, and fire
suppression systems), these devices may activate while adjustments or
repairs are performed during the following procedures.
To prevent activating these devices while adjusting the Chillgard LS
Refrigerant Monitor, disconnect the wiring from the relay. Return all wiring
to the relay when the calibration procedure is completed.
Initial Calibration
1. Using the tubing and calibration adapter, place zero gas on the unit
for a minimum of five minutes as shown in FIGURE 4-2.
"
CAUTION
"
CAUTION
4-2
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