MIL-STD-1330D(SH) APPENDIX D
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D.8.3.2.2 Connect the detector to the radiometer. The orientation of the electrical connection makes no difference. Turn the radiometer ON. With the cap installed on the detector for the radiometer, press the ZERO key. When turned off, batteries retain the zero reading in the memory. If the memory is lost, repeat this step.
D.8.3.2.3 Loosen the screws holding the sensor in the stand so that the sensor can slide relative to the mounting bracket. Remove the cap from the detector. Place the adapter (D.5.1(k)) on the end of the sensor, and place the detector beneath the adapter. Slide the sensor down so that everything rests on the stand.
D.8.3.2.4 Press the SIGNAL key on the radiometer to measure the UV light intensity and log in data sheet 2. Move the detector away from the adapter, then again place it beneath the adapter to take a repeated reading. Take a total of 10 readings and log in data sheet 2. Add the readings and divide the total by 10 to calculate the average and log in data sheet 2. A variance in readings of 5 percent is possible because it is difficult to consistently measure ultraviolet light intensity. As the UV light intensity decreases over time, the light emitted from the surface, and all
of the readings, will drop accordingly. Comparison of the established acceptance criteria for a dish and the UV light intensity can account for a drop in the established acceptance criteria. Over several years, the gain settings may
need to be adjusted to account for this decrease in readings. The UV light intensity should decrease linearly by a maximum of 30 percent over a period of 5000 hours. If it exhibits a greater decrease in less hours or exhibits a rapid
drop in UV lamp intensity, contact NAVSEA for direction.
D.8.3.2.5 Turn the radiometer OFF. Replace the cap on the detector. Disconnect the detector from the radiometer. Tighten the screws holding the sensor and set the sensor per D.8.2.2.
D.8.3.3 Control unit electronics.
D.8.3.3.1 Turn the SQM OFF and unplug the sensor from the rear of the control unit.
NOTE 2: After turning the SQM OFF, it takes about 15 to 30 seconds for it to boot down properly. If it is turned ON before it is booted down properly, the display will not come on. If this occurs, turn it off, wait about 30 seconds, then turn it on again.
D.8.3.3.2 Wait about 30 seconds, then turn the SQM ON. There will be an error message stating "CONNECT SENSOR-TURN POWER OFF 1ST". Press the ENTER key to eliminate this error message. Set the GAIN on the control unit to 1. Allow 15 minutes to warm up.
D.8.3.3.3 Observe the reading and log in data sheet 2. If the reading is 5 or less, no action is required. If the reading is more than 5, send the control unit to the manufacturer for adjustment and calibration.
D.8.3.3.4 Restore the gain settings on the control unit to the setting noted in D.10.1.5.
D.8.3.3.5 Turn the SQM OFF and plug the sensor in the rear of the control unit. Wait about 30 seconds, then turn the SQM ON.
D.8.4 Safety precautions.
D.8.4.1 When handling CFC-113, HCFC-225, or HFE-7100, the safety precautions specified by the material safety data sheet (MSDS) and 4.4.1.2 shall be followed.
D.8.4.2 When handling Sparkleen, follow the safety precautions specified by the material safety data sheet
(MSDS).
D.8.5 Cleaning of equipment.
D.8.5.1 Rinse the pipet and washing bottle with unused solvent. Clean the beaker with Sparkleen (soaking for one hour, then agitating by shaking has been shown to be effective), rinse with water several times, and final clean with unused solvent.
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