Maintenance; Calibration; Cleaning; Main Body - Omega BB-4A User Manual

5
BB-4A Blackbody Calibrator
Section 5 - Maintenance
5.1

Calibration

This unit has been fine tuned at the factory and calibrated to give optimum
performance of its full temperature range. It is recommended that the unit be
returned annually for re-calibration.
5.2

Cleaning

Remove all electrical connections and power before attempting any maintenance or
cleaning.
5.2.1

Main Body

Only a damp soft rag with a mild cleaning solution should be used to clean the
main body of this unit.
5.2.2

Heater Cavity

Do not attempt to clean the heater cavity.
5.2.3

Fan

The fan filter should be cleaned as a minimum monthly, by washing the filter
with warm water and then blowing dry with air. Never clean it while attached to
the unit. It is removed by by firmly pulling back the plastic frame outward. The
internal protective grill that is seated against the fan can be cleaned with a soft
bristle brush.
5.3

Fuse Replacement

Disconnect all power from source before attempting fuse replacement.
For continued protection against the risk of fire replace with only the same size, type and
rating fuse indicated here and on the rear panel of your unit.
For model: BB-4A use
For model: BB-4A -230VAC use 2 ea. 250 VAC~, F3.15A (Time-Lag, 3.15 Amp)
5-1
CAUTION:
WARNING:
CAUTION:
1 ea. 250 VAC~, T4A (Time-Lag, 4 Amp)
UL./CSA APPROVED (.25 dia. x 1.25 long).
VDE APPROVED (5 mm dia. x 20 mm long).