53 & 54 Series II
Maintenance
19
Maintenance
Replacing the Batteries
Refer to the safety information in Table 1 before replacing
the batteries.
1. Turn off the thermometer if necessary.
2. Loosen the screw and remove the battery door.
3. Replace the three AA batteries.
4. Replace the battery door and tighten the screw.
Cleaning the Case and Holster
Use soap and water or a mild commercial cleaner.
Wipe with a damp sponge or soft rag.
Calibration
To ensure that the thermometer performs to its accuracy
specifications, Fluke recommends that you calibrate the
thermometer annually, starting one year after purchase.
To calibrate the thermometer, contact Fluke for the
Service Center nearest you or follow the calibration
procedure in the service manual listed in "Replacement
Parts and Accessories."
Specifications
Environmental
Operating
Temperature
−10
o
C to 50
o
C
(14
o
F to 122
o
F)
Storage Temperature −40
o
C to +60
o
C
(−40
o
F to +140
o
F)
Humidity 0 % to 90 %: −10
o
C to 35
o
C
(14
o
F to 95
o
F)
0 % to 70 %: −10
o
C to 50
o
C
(14
o
F to 122
o
F)
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