Chapter 3
Start-up and Initial Adjustments
Operation
This section describes the following procedures for Chillgard LS
Refrigerant Monitor operation:
• Startup procedures
• Placing the system into operation
• Initial instrument calibration.
Start-Up
The following steps outline the procedures to power ON the Chillgard
LS Refrigerant Monitor:
1. Before applying power to the unit, verify proper power will be
applied to the unit.
2. Turn the instrument ON at the circuit breaker or fuse that
supplies power to the instrument. (The instrument does not have a
power switch.)
NOTE: A green LED indicates that power is ON.
After power ON, allow for unit stabilization (about two hours) before
checking calibration of instrument.
General Calibration (All Models)
Introduction
The calibration procedure should be performed regularly and a log kept
of calibration adjustments. Increase the calibration frequency when any
calibration differs as much as 10% from the test concentration. More
frequent calibrations may be required when the Chillgard LS Refrigerant
Monitor is new. Calibration frequency depends on the operating time
and chemical exposures of the instrument.
Also perform the calibration procedure when installing or changing the
power source of the control instrumentation.
3-1
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