Table 2-6.-Pressure-Temperature Test Set TTU 205C/E
CAPACITIVE-TYPE LIQUID
5. It incorporates safety features that prevent
QUANTITY TEST SET TF-20
damage to the test set and the unit under test.
Many types of capacitive fuel quantity testers
CAUTION
are in use in naval aviation. All operate on
the same basic principle--that of a variable
The power requirements for this tester are
capacitor. Since it is impractical to describe
115 volts, single phase, 400 Hz. For on-
all of the various testers, only the TF-20 is
bench or hangar use, make sure that the
discussed. You can use this set to test most of the
correct frequency of 400 Hz is available.
capacitive fuel quantity systems currently used on
The tester will not work on 115-volt,
naval aircraft.
60-hertz power.