Arizona Jerome 631-X operation manual Sampling Problems

Sampling Problems

Airflow is restricted during the	Kinks and crimps in the	Periodically check the Tygon tubing
sensor regeneration cycle, causing
	Tygon tubing.	inside the instrument. Refer to page
possible permanent damage.
		20.
High erratic results.	Internal hydrogen sulfide	1. Install zero air filter in intake
		and tighten intake nut. Press
	contamination.
		SAMPLE button. After three
		samples, if readings are over
		0.003 ppm, replace fritware
		filter, intake filter disk, and
		Tygon tubing. Refer to page 19.
		2. Perform sensor regeneration
		with the zero air filter in intake.
		Refer to page 12. Retest if
		necessary. Replace scrubber
		filters and Tygon™ tubing.
		Refer to page 20.
High/erratic results	Intake and internal filters	1. Open instrument and check for
	may become clogged and	pinched, crimped or
	need replacement when	disconnected internal tubing.
	sampling in a dusty or humid	2. In extreme conditions, an
	area.	additional particle filter may be
		installed on the intake.
High/erratic results	Loose connections to gold	Place a zero air filter into the intake.
Readings vary more than 0.003 ppm	film sensor.	Place the instrument in survey
when in survey mode.		mode. Move the unit as samples
		are being taken. Call AZI
		Customer Service at 800-528-7411
		or 602-470-1414 for assistance.
Low response or erratic readings	May need a second	1. Wait 30 minutes and perform
after a long period of non-use.	regeneration cycle.	another sensor regeneration.
		2. Test with FTM. Refer to page
		36.
		3. If still unresponsive,
False readings, may go to .8.8.8 or	Extremely cold or extremely	If sampling under these conditions,
.L.L.L.	warm air sampled into unit.	install zero air filter in intake.
		Sample until display reads 0.003
		ppm or less. This equilibrates
		sensor temperature with the
		temperature of the sample air
		stream. Remove filter and take
		samples.

AZI Customer Service 800-528-7411 or 602-470-1414 Page 25 of 50