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National Stock Number:
6685-01-382-4699
Federal Supply Class:
6685
National Item Identification Number:
013824699
Description:
THERMOMETER-HYGROMETER
Detail:
AN INSTRUMENT FOR MEASURING AND INDICATING BY DIGITAL DISPLAY RELATIVE HUMIDITY AND TEMPERATURE OF THE SURROUNDING ATMOSPHERE. MEASUREMENTS ARE MADE BY SENSORS GENERALLY MOUNTED IN A PROBE.
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Manufacturer Information:
| DP989M | 0WST2 | PROTIMETER INC | | MODEL 989M | 0WST2 | PROTIMETER INC |
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Techincal Specification:
| FUNCTIONAL DESCRIPTION | THE PROTIMETER DEWPOINT METER USES ANALOG AND DIGITAL ELECTRONICS TO SIMPLIFY ACCURATE AND STABLE HYGROMETRIC MEASUREMENT; DIRECT MEASUREMENT OF DEWPOINT TEMPERATURE | | MEASUREMENT RANGE | +10.0 TO 100.0 PERCENT RELATIVE HUMIDITY | | MEASUREMENT TYPE | DIGITAL | | OPERATING TEMP RANGE | -20.0 TO 60.0 CELSIUS | | REFERENCE DATA AND LITERATURE | T.O. 33K1-1-100 | | RELATIONSHIP TO SIMILAR EQUIPMENT | REPLACES THE AIR FORCE'S CURRENT TEMP AND HUMIDITY TRANSFER STANDARDS USED IN PMEL, P/N SA-760-A NSN 6625-01-144-1855 DIGITAL READOUT AND P/N H5-3552-B (NSL) HUMIDITY PROBE | | SCALE ACCURACY RATING | HUMIDITY ACCURACY +/- 2 PERCENT RH, TEMP ACCURACY +/- 0.4 DEG F | | SPECIAL FEATURES | SYSTEM CONSISTS OF A HUMIDITY/TEMP INDICATOR W/DIGITAL DISPLAY AND HUMIDITY/TEMP PROBE; PROBE CONNECTED TO DISPLAY BY WIRE; DEW POINT TEMP 0 DEG C TO 40 DEG C BELOW AMBIENT TEMP;OUTPUTS: DEWPOINT TEMP 0 TO 1 VOLT FOR -40 TO 60 DEG C, AMBIENT TEMP 0 TO 1 VOLT FOR -40 TO 60 DEG C, RELATIVE HUMIDITY 0 TO 1 VOLT FOR 0 TO 100 PERCENT RH;MEASUREMENT OF AIR DEWPOINT ACHIEVED BY OPTO-ELECTRONIC DETECTION OF DEW FORMED ON AN ELECTRICALLY COOLED, SOLID GOLD MIRROR, THE TEMP OF MIRROR IS CONTINUALLY MONITORED AND WHEN DEW FORMS THE TEMP IS STORED IN MEMORY; PROBE HOUSES THE DEW FORMING MIRROR AND OPTICS, ALSO CARRIES ANOTHER TRANSDUCER FOR MEASURING AMBIENT TEMP; OPERATES AND DISPLAYS CONTINUOUSLY WHILE CYCLING THROUGH DEWPOINT DETERMINATION EVERY 1/2 TO 2 MINUTES;ITEM WILL BE USED TO MAINTAIN ACCURACY OF THE FOLLOWING SYSTEMS-T.O. 33K6-4-2024-1, P/N 31061222-001, T.O. 33K5-4-84-1 P/N'S CT428-7, RH200, HTAB176 |
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