Initial Setup - MSA Chillgard RT Instruction Manual

Initial Setup

The Chillgard RT Refrigerant Monitor with multiple refrigerant detection
capability must be programmed at the time of installation. This allows
the unit to respond correctly to the gas expected at each particular
sampling point. During set-up, a menu option relates each sampling
point to one of the gases the instrument is capable of detecting.
The Chillgard RT Refrigerant Monitor will only report proper
gas readings if the particular gas selected to be monitored at
each sampling point is actually present at that point. If
another refrigerant that the Chillgard RT unit is capable of
monitoring enters the sample line, the reading will not be
accurate.
After installing the Chillgard RT according to the instructions in this
manual, determine which refrigerant gas is likely to enter each sample
line. Mark each sample line and place the sample tubing on one of the
inlet ports. See FIGURES 3-1 through 3-12 and FIGURES 3-15 through
3-19 for proper set-up.
NOTE: Also see FIGURES D-4 through D-6 for Gas by Point Setup
Screens and Alarm Level Screens (all other operating
characteristics of the Chillgard RT Refrigerant Monitor remain
unchanged).
Calibration
It is only necessary to calibrate the instrument with one gas, even
though the Chillgard RT Refrigerant Monitor with multiple gas detection
capability can respond to up to six different refrigerant gases. Calibrate
the instrument according to the instructions in this manual.
The only variation of the calibration procedure for the multi-gas
Chillgard RT Refrigerant Monitor is to apply span gas to only one of the
sample points. The particular sampling point chosen must be configured
to monitor that particular gas. During the calibration process, the span
values of the other channels or gases will be corrected appropriately.
Display Screens
The Chillgard RT Refrigerant Monitor with multiple Gas Detection
capability uses display screens which differ slightly from the standard
unit. The different display screens are in the Setup of the Sequencer
section of the instrument.
D-5
WARNING