TB 9-6625-2284-50
(8) Set secondary reference NVD detector standard power ON/OFF switch to
OFF, disconnect BNC cable from NVD detector standard, and remove NVD detector
standard from auxiliary source alignment collar.
8. Electro-Optical Gain Accuracy
NOTE
Scribe lines are not used on the transfer NVD detector
standards (TI), but the TI must be rotated in the alignment
collar to peak the voltage output.
a. Performance Check
(1) Install TI into auxiliary source collimator port, connect BNC cable to TI BNC
jack, and ensure that TI is firmly seated into the alignment collar.
(2) Turn TI power ON/OFF switch to ON and allow TI to warm up for 3 minutes.
(3) Set auxiliary source II, III, OFF switch to OFF.
(5) Verify that TI noise level does not exceed 0.02 mV. (No adjustments can be
made). Return TI to primary for maintenance/ repair.
(6) Set auxiliary source II, III, OFF switch to II, and allow 2 minutes for settling
time.
(7) TI will indicate between 421 and 495 mV.
(8) Deenergize and replace TI with secondary reference NVD detector standard
to verify correct operation of auxiliary source. Repeat subparagraphs 8a(1) through (4),
(5) (except for 10-minute warm up), and (7).
CAUTION
Ensure proper alignment of scribe lines on reference NVD.
b Adjustments. No adjustments can be made. If out of tolerance, return TI to
primary for repair/recertification
a. Deenergize and disconnect all equipment.
b. Annotate and affix DA label/form in accordance with TB 750-25.