Omron CQM1H-SCB41 Inspection, Materials Required Daily, Materials Required Occasionally

Board Replacement Section 9-3

9-3-2 Inspection

To keep the Serial Communications Board in optimum condition, regular inspec- tions must be performed. Normally, inspect the devices once every six months or every year. Inspect the devices at more regular intervals when they are being used in environments subject to high temperatures, high humidity, or high dust levels.

Materials for Inspection Prepare the following materials before performing any inspections.

Materials Required Daily

For daily inspection, a Phillips screwdriver, flat-blade screwdriver, tester (or digi- tal voltmeter), industrial strength alcohol, and all-cotton cloth are required.

Materials Required Occasionally

For some inspections, a synchroscope, a pen oscilloscope, a temperature gauge, and a hygrometer will be required.

Inspection Items	Inspect the following items to check whether the Serial Communications Board
	is operating within the specified criterion. If the Serial Communications Board is
	not within the criterion, improve the ambient operating environment and readjust
	the device.
	Item	Details	Criterion	Inspection
				materials
	Operating	Check the ambient temperature	0 to 55° C	Temperature
	environment	and the temperature inside the		gauge
		control panel.
		Check the ambient humidify and	10% to 90% RH	Hygrometer
		the humidity inside the control	(no
		panel.	condensation or
			icing)
		Check for accumulated dust.	No dust	Visual
				inspection
	Installation	Check that the Serial	Board must be	---
		Communications Board is	mounted
		mounted securely.	securely.
		Check for loose screws on the	Screws must be	Phillips
		communications cables.	securely	screwdriver
			tightened.
		Check for damaged	Cables should	Visual
		communications cables.	be fully intact.	inspection

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