nificant change in the viscosity can indicate that the fluid is contaminated,
being used outside of its temperature limits, contains ice particles, or is
close to a chemical breakdown. Once data has been gathered, a specific
maintenance schedule can be outlined for the instrument. Refer to General
Operation, Section 8, for more information about the different types of
fluids used in calibration baths.
•
If a hazardous material is spilt on or inside the equipment, the user is re-
sponsible for taking the appropriate decontamination steps as outlined by
the national safety council with respect to the material. MSDS sheets ap-
plicable to all fluids used in the baths should be kept in close proximity to
the instrument.
•
If the mains supply cord becomes damaged, replace it with a cord with
the appropriate gauge wire for the current of the bath. If there are any
questions, contact an Authorized Service Center (see Section 1.3) for
more information.
•
Before using any cleaning or decontamination method except those rec-
ommended by Hart, users should check with an Authorized Service Cen-
ter (see Section 1.3) to be sure that the proposed method does not damage
the equipment.
•
If the instrument is used in a manner not in accordance with the equip-
ment design, the operation of the bath may be impaired or safety hazards
may arise.
•
The over-temperature cutout should be checked every 6 months to see that
it is working properly. In order to check the user selected cutout, follow
the controller directions (Section 9.10) for setting the cutout. Both the
manual and the auto reset option of the cutout should be checked. Set the
bath temperature higher than the cutout. Check to see if the display
flashes cutout and the temperature is decreasing.
WARNING:
When checking the over-temperature cutout, be sure that the
temperature limits of the bath fluid are not exceeded. Exceeding the tem-
perature limits of the bath fluid could cause harm to the operator, lab, and
instrument.
6331 Calibration Bath
User’s Guide
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