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Page Title:
Section III: OPERATION UNDER UNUSUAL CONDITIONS |
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  TM
55-4920-244-14
through c. With switch SW-2 in
2-18. Using Tester Potentiometer (°C Scale)
the S-1 position, make chromel-alumel connection
for Auxiliary Temperature
at pins D (+) and C (-), respectively. With
Measurements.
switch SW-2 in the S-2 position, make chromel-
alumel connection at pins B (+) and A (-), re-
To use potentiometer (°C scale) to read
spectively. Secure tester after operation in accord-
the emf output of chromel-alumel thermocouple,
ance with paragraph 2-14.
prepare tester for operation in accordance with
Section
lll. OPERATION UNDER UNUSUAL CONDITIONS
2-22. Operation in Dusty or Sandy Areas.
2 - 1 9 . General.
a. If possible, perform operation of tester
This section contains special instructions
in a sheltered, well-protected area.
which are necessary to insure proper functioning
of the tester under unusual conditions. The fol-
b. Reduce inspection and servicing inter-
lowing special operating instructions are to be
vals and keep tester wiped clean as much as
used in conjunction with operating instructions
possible
outlined in paragraphs 2-4 through 2-15.
c. Provide best available shelter and oper-
ate only when wind is at a minimum.
2-20. Operation in Extreme Cold.
d. When not in use, keep tester under a
a. If possible, perform operation of tester
protective cover, in a sheltered, well-protected
in a properly heated, sheltered area.
area.
b. When operating in an unsheltered
area, provide best available temporary shelter to
protect tester from freezing rain, sleet, or snow.
2-23. Operating in High Humidity Areas.
c. When not in use, keep tester under a
a. If possible, perform operation of tester
protective cover if shelter is not available.
in a sheltered, well-ventilated area.
2-21. Operation in Extreme Heat.
b. Reduce inspection and servicing inter-
a. If possible, perform operation of tester
vals and keep tester as dry as possible.
in a shaded and well-ventilated area.
c. When operating in an unsheltered area,
b. When operating tester in an unshel-
provide beat available protective shelter and op-
tered area, provide best available temporary
erate as weather conditions permit.
shelter to protect tester from direct rays of sun.
c. When not in use, keep tester in a
d. When not in use, keep tester under a
shaded, protected area.
protective cover, in a sheltered area.
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