4.2 MAINTENANCE
This section of the manual contains maintenance information for use in preventative maintenance,
corrective maintenance,and troubleshooting of the Model 252.
4.2.1 Preventative Maintenance
REMOVAL OF INSTRUMENT COVERS MAY CONSTITUTE AN ELECTRICAL HAZARD
AND SHOULD BE ACCOMPLISHED BY QUALIFIED SERVICE PERSONNEL ONLY.
Preventive maintenance performed on a regular basis will improve the reliability of this instrument.
It may include cleaning, visual inspection, or even monitoring the operating environment.
4.2.1.1 Cleaning
AVOID THE USE OF CHEMICAL CLEANING AGENTS WHICH MIGHT DAMAGE THE
PLASTICS USED IN THIS UNIT. DO NOT APPLY ANY SOLVENT CONTAINING
KETONES, ESTERS OR HALOGENATED HYDROCARBONS. TO CLEAN, USE ONLY
WATER SOLUBLE DETERGENTS, ETHYL, METHYL, OR ISOPROPYL ALCOHOL.
Exterior. Loose dust may be removed with a soft cloth or a dry brush. Water and mild detergent
may be used; however, abrasive cleaners should not be used.
Interior. Use low-velocity compressed air to blow off the accumulated dust. Hardened dirt can be
removed with a cotton-tipped swab, soft, dry cloth, or a cloth dampened with a mild detergent
and water.
4-5
To Next Page
Loading...
