Heath Consultants Personal Surveyor (PS200 Series) - Manual (Page 25)

2-1
OPERATION
2
OPERATION
2.1 OPERATING PROCEDURE
CAUTION: The GMI PS200 instrument can be supplied
with a flammable gas sensor. This sensor is
designed for use in concentrations of gas not
exceeding the Lower Explosive Limit (LEL).
Exposing the sensor to high concentrations of
flammable gas above the LEL can cause
damage to the sensor and inhibit its proper
operation. The GMI PS200 has an inbuilt safety
alarm feature to prevent this. Refer to ALARMS
section of this handbook for details.
Check the following before use:
• The PS200 instrument is clean and in good condition.
• The hydrophobic and inlet filters are clean and in good
condition.
• The sample line (pumped instruments) and any other
accessories used are in good condition and leak-free.
• Switch instrument ON in fresh air and check that the
battery is fully charged.
• Verify there are no faults.
• Attach optional accessories, as required.
• All gas ranges are operational and the instrument is
zeroed.