TM 55-4920-428-13
l. Adjust the test aid variable resistor until No. 1 multimeter indicates 2.0 volts ac. The meters shall
indicate as follows:
METER
No. 2 Multimeter
DVM
SAS 1 NULL Meter
INDICATION
1.90 to 2.10 volts dc
1.93 to 2.06 volts dc
9 to 11 microampere
m. Set the SAS 1 EXTERNAL METER SELECT and the SAS 1 LINK TEST switches to VALVE. The
meters shall indicate as follows:
METER
INDICATION
No. 2 Multimeter
-0.57 to -0.63 volts dc
DVM
-.560 to -.640 volts dc
n. Adjust the test aid variable resistor until No. 1 multimeter indicates l.0-volt ac.
o. Set the SAS 1 EXTERNAL METER SELECT and the SAS 1 LINK TEST switches to SELF FDBK.
The meters shall indicate as follows:
METER
INDICATION
No. 2 Multimeter
0.95 to 1.05 volts dc
DV M
0.96 to 1.03 volts dc
SAS 1 NULL Meter
4 to 6 microampere
p. Press and release meter X10 pushbutton switch. SAS 1 NULL meter pointer shall momentarily
move upscale.
q. Set SAS 1 EXTERNAL METER SELECT and SAS 1 LINK TEST switches to VALVE. The meters
shall indicate as follows:
METER
INDICATION
No. 2 Multimeter
–0.285 to –0.315 volts dc
DV M
–.275 to -.325 volts dc
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