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TM 55-4920-383-13&P
c.
To measure the insulation resistance of the aircraft compensator, that is the resist-
ance between the COAX A and COMP C Test Set receptacles (18), position the RESISTANCE
FUNCTION switch (11) to A-C position. Set the RESISTANCE RANGE switch (12) as
described in paragraph 2-8(b).
d. To measure the insulation resistance between the center conductor of the coaxial
signal lead and aircraft chassis ground, that is the resistance between the COAX A Test Set
receptacle (18) and chassis ground, position the RESISTANCE FUNCTION switch (11) in posi-
tion A-GND.
Position the RESISTANCE RANGE switch (12) as described in paragraph 2-8(b).
e. To measure the insulation resistance between the unshielded signal lead and aircraft
chassis ground, that is the resistance between the UNSH-B Test Set receptacle (18) and
chassis ground, position the RESISTANCE FUNCTION switch (11) in position B-GND. Position
RESISTANCE RANGE switch (12) as described in paragraph 2-8(b).
f.
To measure the insulation resistance between the compensator signal lead and
aircraft chassis ground, that is the resistance between the COMP C Test Set receptacle (18)
and chassis ground, position the RESISTANCE FUNCTION switch (11) in position C-GND.
Position the RESISTANCE RANGE switch (12) as described in paragraph 2-8(b).
g.
To measure the insulation resistance of an unknown connected across the EXT RES
terminals (10) of the Test Set, position RESISTANCE FUNCTION switch (11) in position EXT
RES.
2-9.
a.
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figure
Position the RESISTANCE RANGE switch (12) as described in paragraph 2-8(b).
Setting Simulated Tank Unit Capacitance and Simulated Compensator Capacitance.
To set the simulated tank unit capacitance (with the equipment set up as shown in
2-2), position Test Set switches as follows:
2 - 1 6
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