Honeywell DR4300 manual Check the displays and keys Procedure, Key Error message

Configuration, Startup, and Operation of Recorder with Display

4.4.4.4 Check the displays and keys

Procedure

Use the procedure in Table 4-24to run the optional display and key test.

			Table 4-24 Procedure for Testing the Displays and Keys
	Press				Result
		The recorder runs a display test. All the displays will light for 10 seconds, then
	SET
		the displays will look like this:
	UP
			Upper Display
and hold in,
			KEYS
	then
			Lower Display
	FUNC
			TRY
at the same time
Press each key to see if		When the key is pressed, the lower display indicates the name of the key
	it works	pressed.*
				Key Pressed	Lower Display
				SET UP	SET
				FUNC	FUNC
				DISP	DISP
				MAN/AUTO/RESET	AUTO
					INCR
					DECR
		If pressing a key does not display its name, the display/keypad assembly is
		defective. Replace it as described in Section 9 – Replacing Hardware
		Assemblies.

* If no key is pressed for 30 seconds, the test times out and the recorder exits the key test.

Key Error message

When a key is pressed and the prompt “KEY ERROR” appears in the lower display, the message is not associated with the display and keypad test. This message will be displayed when the operator presses a key that is invalid for the recorder’s configuration. The “KEY ERROR” message will be displayed during normal operation if one of the following conditions is met.

•The parameter normally called up by the key is not available.

•The recorder is not in Set Up mode, so the recorder can not respond to the key; press the SET UP key first.

•The key is not valid because the recorder is not set up for control.

•The key malfunctions; perform keypad test.

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