TB 9-6625-2284-50
calibration procedure. The following peculiar accessory is also required for this
calibration: Collar, NVD Alignment, PN 13440057.
Table 2. Minimum Specifications of
Equipment Required
Manufacturer and model
Common name
Minimum use specifications
(part number)
SECONDARY
Radiance responsivity at 820 nm:
PN 13335470 (1335470)
REFERENCE NIGHT VISION
4.73 x 107(nominal) V/(W Cm-2sr-1)
(Selected, Blue Anodized with
DEVICE
2.5% (6%)
Calibration Test Report)
DETECTOR STANDARD
Intensity responsivity at 810 nm:
1.51 x 107 V/(W sr-1 ) 2.8% ( 7.5%)
Range: 100 to 800 mV
John Fluke, Model 8506A/CT
V dc resolution: .01mV
(p/o MIS-35974)
Accuracy: 0.5% at 500 mV
AUXILIARY SOURCE
Intensity at 810 (nominal): 3.03 x 10 -8
Test set electronic systems
(REFERENCE)
W/sr
(modified TS-4348/UV)
(TS-4348/UV modified)
'Procedure end item (TI) tolerance restricted to 8% to maintain end item overall uncertainty of 10%, 11% respectively
6. Preliminary Instructions
a. The
instructions outlined in
paragraphs 6 and
7 are preparatory to the
calibration process. Personnel should become familiar with the entire bulletin before
beginning the calibration
b. Items of equipment used in this procedure are referenced within the text by
c. Unless otherwise specified, verify the result of each test and, whenever the test
requirement is not met, take corrective action before continuing with the calibration.
Adjustments required to calibrate the TI are included in this procedure. Additional
maintenance information is contained in the manufacturer's manual for this TI.
d. Unless otherwise specified, all controls and control settings refer to the TI.
a. Momentarily energize both secondary reference and transfer NVD detector
standards; press battery test push-button and verify that red LED illuminates; if not,
b. Remove auxiliary source (TS-4348/UV) from its protective case and orient
vertically.
c. Install NVD alignment collar on the auxiliary source collimator port, ensuring
that its scribe line is aligned with that on the body of the auxiliary source.