Omron FQM1-MMA21 Inspection Points for Periodic Inspections, Inspection Criteria Action

InspectionsSection 10-1

10-1 Inspections

Daily or periodic inspections are required in order to maintain the FQM1 in peak operating condition.

10-1-1 Inspection Points

Although the major components in the FQM1 have an extremely long life time, they can deteriorate under improper environmental conditions. Periodic inspections are thus required to ensure that the required condition is being maintained.

Inspection is recommended at least once every six months to a year, but more frequent inspections will be necessary in adverse environments.

Take immediate steps to correct the situation if any of the conditions in the fol- lowing table are not met.

Inspection Points for Periodic Inspections

No.	Item	Inspection	Criteria	Action
1	Source Power	Check for voltage fluctuations	The voltage must be within	Use a voltage tester to check the
	Supply	at the power supply terminals.	the allowable voltage fluctu-	power supply at the terminals. Take
			ation range.	necessary steps to bring voltage
			(See note.)	fluctuations within limits.
2	I/O Power Sup-	Check for voltage fluctuations	Voltages must be within	Use a voltage tester to check the
	ply	at the I/O terminals.	specifications for each	power supply at the terminals. Take
			Module.	necessary steps to bring voltage
				fluctuations within limits.
3	Ambient environ-	Check the ambient tempera-	0 to 55°C	Use a thermometer to check the
	ment	ture. (Inside the control panel		temperature and ensure that the
		if the FQM1 is in a control		ambient temperature remains
		panel.)		within the allowed range of 0 to
				55°C.
		Check the ambient humidity.	Relative humidity must be	Use a hygrometer to check the
		(Inside the control panel if the	10% to 90% with no con-	humidity and ensure that the ambi-
		FQM1 is in a control panel.)	densation.	ent humidity remains within the
				allowed range.
				In particular, verify that there is no
				condensation or icing caused by
				sudden temperature changes.
		Check that the FQM1 is not in	Not in direct sunlight	Protect the FQM1 if necessary.
		direct sunlight.
		Check for accumulation of	No accumulation	Clean and protect the FQM1 if nec-
		dirt, dust, salt, metal filings,		essary.
		etc.
		Check for water, oil, or chemi-	No spray on the FQM1	Clean and protect the FQM1 if nec-
		cal sprays hitting the FQM1.		essary.
		Check for corrosive or flam-	No corrosive or flammable	Check by smell or use a sensor.
		mable gases in the area of the	gases
		FQM1.
		Check the level of vibration or	Vibration and shock must	Install cushioning or shock absorb-
		shock.	be within specifications.	ing equipment if necessary.
		Check for noise sources near	No significant noise	Either separate the FQM1 and
		the FQM1	sources	noise source or protect the FQM1.

260