Recalibration And Service Information; Troubleshooting; Self-Test Failure; High Background Readings - Fluke 481 Operator's Manual

481
Operators Manual

Recalibration and Service Information

If your Survey Meter needs recalibration or repair, we request that you contact
Fluke. See the How to Contact Fluke section in this manual.
More information concerning the operation, application, or service of your Survey
Meter may be obtained from the applications engineer at the numbers listed
above.

Troubleshooting

For safe operation and maintenance of the Product, use caution
when working on this Product. If the Product indicates a
relatively high radiation rate, there is a possibility that the
Product has been contaminated. High rates can quickly cause
the operator's cumulative exposure to increase with the
potential for injury.
Install fresh batteries prior to performing any calibration on the
Survey Meter.

Self-Test Failure

If the Survey Meter fails self-test, it will remain locked on the firmware revision
number. See the How to Contact Fluke section.

High Background Readings

The desiccant must be renewed and replaced periodically. See the How to
Contact Fluke section in this manual.

Erratic Readings

Check for broken ion chamber window or loose collector. Check for loose
chamber bias connector.
18
 Caution
Note