Maintenance
Replacing the battery
The battery should be replaced annually, whenever you plan an extended period
of unattended monitoring, or whenever “BAT” appears in the display for more than an instant. Low BAT is
set for 6.9
±
0.6 volts. Remove the battery before long-term storage. See Specifications for replacement
type. If unit fails to operate after replacing the battery, remove battery, press and release the ON/ZERO
button then re-connect the battery.
Cleaning
To obtain accurate, drift-free readings the sensor plate and especially the area
around the
aperture must be kept absolutely clean at all times. Be sure to always keep the instrument in its protective
case when not actually taking measurements.
Never touch the aperture with anything-not even
cotton swabs.
To remove dust or other particulate matter, use low-pressure instrument grade air. To
remove severe contamination spray or flush with the smallest practical amounts of clean technical grade
isopropyl alcohol. The stand the instrument on end and allow it to dry for several hours.
DO NOT
clean
with any solvent on a regular basis.
Zero Drift
Apply anti-stat solution to plastic surrounding the sensor plate using lint free applicator.
DO
NOT
allow entry into aperture.
Calibration
Monroe Electronics instruments are factory-calibrated prior to shipment. Recalibration should be
performed annually, or more frequently if specified by contract or company policy. Your instrument should
also be recalibrated any time it has been repaired or tampered with.
We are happy to recalibrate your instrument for you at a reasonable cost, or provide information and
procedures on calibration upon request. We also offer calibration services with traceability to NIST or MIL-
STD-45662A.
Safety Considerations
The Model 282A-1 has undergone testing to qualify for the following markings:
CE
— Radiated and ESD immunity to severity levels for industrial devices according to EN 50082-1 and
radiated emissions with limits for Group 1, Class A product of EN 55011 to the generic standard EN 5008
1-2 (1992).
Two-year warranty
Monroe Electronics, Inc. warrants this instrument to be free from defects in material and workmanship for
a period of two years after shipment from the factory. This warranty is applicable to the original purchaser
only. Liability is limited to service, adjustment or replacement of defective parts (other than fuses or
batteries) on any instrument returned to the factory, transportation charges prepaid. It does not apply to
any instrument subjected to abuse, abnormal operating conditions, or unauthorized repair or modification.
No other warranties, explicit or implied, apply. Under no circumstances shall Monroe Electronics be
responsible for damages either direct or consequential. For additional information concerning this
product, contact Monroe Electronics, Inc.
Copyright
1999 Monroe Electronics, Inc.
Printed in USA
Stat-Arc is a trademark of Monroe Electronics, Inc.
Specifications subject to change without notice.
