Fluke 5020A user manual Blank screen, Error message at power up, Self-Test Error Messages

5020A

Users Manual

Blank screen

The screen appears blank when switched on.

Ensure the power adapter is attached properly and the power is switched on.

This problem can also be caused by improper adjustment of the contrast. After the power is switched on allow the thermo-hygrometer at least one minute to complete its self-test and power on sequence. Then, try to adjust the contrast using the A D buttons.

Error message at power up

The thermo-hygrometer reports an error during the power up self-test.

The display will remain inoperable during a power outage to preserve battery life. Measurements will continue to be recorded as long as the battery has a charge.

On power up the thermo-hygrometer performs a series of self-tests to check the operation of all its components and each of the sensors. The results of the self-tests are reported on the screen. Normally, all tests report ‘OK’. Below is a table of error messages and recommended actions to correct the error. Often these errors can be corrected by completing the actions listed. A failure of one or more component causes error messages to be reported.

Contact an Authorized Service Center for assistance.

Self-Test Error Messages

Table 8-1. Self-Test Error Messages

Error Message	Recommended Action
SYSTEMS: SERIAL PORT FAILURE	Cycle the power. Contact an Authorized Service
	Center.
SYSTEMS: IR PORT FAILURE	Cycle the power. Contact an Authorized Service
	Center.
SYSTEMS: DATA CARD FAILURE	Cycle the power. Contact an Authorized Service
	Center.
BATTERY: FAILURE	Cycle the power. Contact an Authorized Service
	Center.
BATTERY: NOT INSTALLED	Check that a battery is properly installed. Replace
	the battery.
CLOCK: INVALID TIME	Set the time/date.
MEMORY DATA: EMPTY	Contact an Authorized Service Center.
MEMORY DATA: QUESTIONABLE	Cycle the power. Contact an Authorized Service
	Center.
SENSOR <n>: NOT ATTACHED	Check that the sensors are properly inserted into
	their sockets or attached with an undamaged
	extension cable.
SENSOR <n>: LOCKED	Attach the correct sensor or, if a new sensor is to be
	used, unlock the sensor using CHANNEL-SENSOR
	LOCK.

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