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78-8136-3182-3
10. Maintenance/Calibration/Repair of 3M
™
Charge Analyzer 711 &
3M
™
Remote Field Sensor Probe
Maintenance
- If the charge plate does not retain the applied voltage, it may be due to high level of room
humidity or contamination on one or more of the four Teflon® spacers. Teflon spacers should be cleaned with
laboratory grade alcohol. Use clean cotton or latex gloves when directly handling these spacers.
CAUTION
To reduce the risks associated with use of alcohol for cleaning:
•
When cleaning the analyzer per the operating instructions, follow the MSDS procedures for safe use and
handling of laboratory grade isopropyl alcohol.
To reduce the risks associated with environmental contamination from the NiMH battery pack and
circuit boards containing lead-bearing solder:
•
The charge analyzer contains a NiMH battery pack and circuitry that contains lead in the solder. At the end
of service life, dispose of the charge analyzer in accordance with federal, state and local requirements.
When not in use, the field sensors should be covered at all times with the supplied red covers. Extreme care
should be taken to prevent contact to the sensor elements. They should be kept free of insulating coatings caused
by dust, paint, or varnish vapors, and condensed water. To clean the sensor element, use a laboratory grade
alcohol applied to a lint-free cloth. Lint free cotton swabs may also be used. Care must be taken not to cause
damage to the impeller or sensor surface at all times.
CAUTION
To reduce the risks associated with property damage due to improper repair or modification:
•
Do not attempt to modify or repair — no user serviceable parts inside — contact 3M Service for repair
To reduce the risks associated with property damage from improper maintenance:
•
Unit must be cleaned and checked periodically for correct operation
Calibration/Repair
– 3M Electronic Solutions Division provides a calibration and repair service for the charge
analyzer 711. If this type of service is required, contact our Customer Service Department, at 1-800-328-1368 for
more details.
WARNING
To reduce the risks associated with hazardous voltage:
•
Do not attempt to modify or repair — no user serviceable parts inside — contact 3M Service for repair.
