TB 9-4935-552-50-2
b. Ensure that the test station has been operating for at least an hour before beginning
the calibration.
program (9007) if the AC or DC standards were adjusted during calibration of the self-test
reference in TB 9-4935-552-50-3.
12. Equipment Setup
a. Deenergize circuit breakers on power supply of source/detector adapter.
b. Open test station lamp driver door and momentarily short terminals TB1-1 and
TB1-2, figure 2.
WARNING
Dangerous voltage is present. Wrap connected leads with
insulating tape for personal safety.
the range contacts on shunt A3 to the 100 AMPERES position. Set POWER on differential
voltmeter A4 to BAT OPR.
d. Press and release POWER ON switch on the test station monitor panel and install
PB-109 (B10).
e. Connect CA-135 (B5) as follows: P2 to test adapter J4, P1 to lamp driver J9.
f. Set monitor panel TEST MODE switch to MANUAL and press and release START
TEST switch.
g. Set source/detector adapter power supply circuit breakers to ON in the following
sequence: 28 VDC, 208 VAC, and LAMP DRIVER.
h. Remove the shroud from the positioning table using a 5/32 inch internal wrench to
remove the 6 screws.
i. Mount radiometer A2 optical head on TA-237 (B2) using alignment test stand
screws. Mount TA-237 with radiometer attached on the positioning table.
Connect radiometer A2 to power supply A5 using cable provided.
j.
13
