GT SERIES
1 INSTRUMENT, 7 APPLICATIONS
6
67112
Revision 10
3. Operation
3.1. Operation Procedure
Check the following before use:
• The monitor is clean and in good condition.
• The hydrophobic filter is clean and in good condition.
• The clear probe filter bulb is screwed tightly and in good condition.
• The sample line and any other accessories used are in good condition.
• The batteries are in good condition, fully charged and fitted correctly.
• The battery indication provides sufficient capacity for the application.
• The monitor is within your calibration period.
• The flow fault and filter check are successful.
• All applicable ranges are operational.
• There are no fault indications.
• Attach optional accessories, as required.
3.2. Switching the Monitor ON
Figure 2: Switching the Monitor On
• Press and hold the RH button for one second.
• A 30-second warm-up routine begins (a countdown timer appears).
• The Power ON LED and the display backlight illuminates. Both remain ON during warm-
up.
WARNING: ALWAYS SWITCH THE MONITOR ON IN FRESH AIR.
