GDS-68XP Operation & Maintenance Manual, Revision 3.4
Page 15
5
INSTALLATION
SELECTING A LOCATION
Locate the GDS-68XP as close as practical to the source of the sample gas to minimize latency and ensure
that fresh sample is available for each sequence. The GDS-68XP plate and/or enclosure feature mounting
holes that can be used to securely attach the monitor to a bulkhead or wall. Make sure there is sufficient
clearance below and to the left side of the GDS-68XP to allow room for power & signal cables, purge air,
sample, filter bypass (if installed), filter drain and sample exhaust tubing.
If the unit is installed outside or where insects or dust may be present, be sure that the supplied purge air
filter is in place and that a cover is placed over the Cal Gas Inlet port.
Always mount the GDS-68XP in a vertical position to ensure proper operation of flow switch and filter
drains. The non-metallic enclosure option is strongly recommended if unit is to be installed outside or in
areas where high or low temperature extremes may occur.
NOTE:
TEMPERATURES BELOW 0°C MAY KEEP THE PURGE AIR PUMP FROM STARTING.
Always use recommended conduit and poured seals for signal and power wiring installation in hazardous
areas. Consult local codes and regulations where appropriate.
Figure 5-1: GDS-68XP (High Pressure, Standard Filter)
Purge Air
Inlet
Sample
Inlet
Power & Signal
Input
Filter Drain
Sample Exhaust
Regulator
Flow Meter
AC Heater
GASMAX
Sequencer
Sensor
Sensor
Flow
Cell