Fuji Labs ZSP instruction manual Troubleshooting of instrument

13.TROUBLESHOOTING

Caution

•When trouble cannot be remedied even after following the instruction manual, contact your dealer or Fuji's service station (serivice engineer). Do not disassemble the device, as it results in electric shocks or injury.

13.1Troubleshooting of instrument

Trouble		Probable location	Check item	Remedy
Decrease of sample		Filter (primary, second-	Check if filter element is clogged.	Clean or replace element.
gas flow rate		ary, tertiary filters)
		Diaphragm type aspirator	Check if aspirator is working normally.	Clean or replace.
			Check for abnormal sound or vibration.	Retighten screws or replace
				aspirator.
		Electronic gas cooler	Check if cooler is working normally,	Clean or replace.
			check cooling temperature and check for
			clogging of flow path.
		Conditioner	Water decreases in lower chamber.	Inject water and check the
				capillary (bypass).
		Gas leakage	Check for gas leakage in piping after	Retighten or replace parts.
			aspirator or at joints.
		Flowmeter	Check for accumulation of drainage or	Clean the flowmeter.
			dust in flowmeter. Check adjustment of	Adjust needle valve.
			needle valve.
		Piping, capillary	Check for bent or clogged piping.	Replace.
Increase of bubbling		Bypass flow path	Check for capillary.	Clean or replace.
flow rate		Piping	Check for deviated joint.	Connect properly.
Rise of sample gas		Pressure control valve	Pressure control valve is clogged.	Disassemble and clean.
flow	(Note)
Indicated value is		Gas leakage	Check for gas leakage in parts before	Retighten or replace parts.
abnormal.			aspirator such as secondary coarse filter
			holder, piping, joints, etc.
		Diaphragm	Check if aspirator is normally operating	Clean aspirator or replace
		type aspiration	and sample gas is flowing at set value.	parts such as diaphragm or
				value
				Adjust sample gas flow.
		Conditioner	Check if water level is normal.	Supply water.
			Check if air is aspirated.	Check primary filter.
		Dissolution of gas	Check for accumulation of drainage in	Clean, and tilt piping so
			piping.	drainage does not accumulate.
		Sampling pipe	Check if SUS pipe is used (for SO2	Change to teflon tube.
			analyzer).

Note) Pressure control valve is used.

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