Part Details | PYROMETER AND THERMOCOUPLE TESTER
6685-01-390-6257 An instrument used for checking thermocouples and pyrometers. It is designed with a compensator which can be adjusted so that the measured electromotive force, corrected to a standard reference temperature, can be read directly from a scale. It can be used as a pH meter. Excludes RESISTOR, VARIABLE, WIRE WOUND; RESISTOR, VARIABLE, NONWIRE WOUND; METER, HYDROGEN ION TEST; and PYROMETER (as modified).
Alternate Parts: 720390, 4225TX, 4225T-X, 6685-01-390-6257, 01-390-6257, 6685013906257, 013906257
| Supply Group (FSG) | NSN Assigned | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 66 | MAY 23, 1994 | 01-390-6257 | 07344 ( TESTER, PYROMETER AND THERMOCOUPLE ) |
REFERENCE DRAWINGS & PICTURES
Cross Reference | NSN 6685-01-390-6257
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 720390 | 07239 | AVO INTL |
| 4225T-X | 07239 | AVO INTL |
Technical Data | NSN 6685-01-390-6257
| Characteristic | Specifications |
|---|---|
| MEASUREMENT TYPE | MILLIVOLT CIRCUIT |
| SCALE TYPE | S ANY ACCEPTABLE |
| SCALE RANGE | -200.0 TO +4000.0 MILLIVOLTS |
| SCALE ACCURACY | +/- 0.02 PERCENT |
| SCALE CALIBRATION | NIST CALIBRATION TRANSFER BOX |
| SCALE SMALLEST INCREMENT | 0.1 MILLIVOLTS |
| INDICATING POINT TYPE | SINGLE |
| CONTROL SWITCH TYPE | 12 POINT ROTARY THERMOCOUPLE SELECTION SWITCH, 2 POINT CHANNEL SELECTION SWITCH, .0001/4000 OHM POTENTIOMETER,2 POINT AUX SWITCHES |
| CASE TYPE | FD ANY ACCEPTABLE |
| CASE MATERIAL | ALUMINUM ALLOY |
| OVERALL LENGTH | 12.000 INCHES NOMINAL |
| OVERALL WIDTH | 9.625 INCHES NOMINAL |
| OVERALL HEIGHT | 6.375 INCHES NOMINAL |
| INSTALLATION DESIGN | PORTABLE |
| ACCESSORY COMPONENTS AND QUANTITY | 5 NICAD C CELLS, NIST CERTIFICATE,BATTERY CHARGER, CALIBRATION TRANSFER BOX, TEST LEADS, JUMPER LEADS, AND INSTRUCTION MANUAL |
| SPECIAL FEATURES | CALIBRATES J, K, T, E, R, S, B, N, AND MM TYPE THERMOCOUPLES, PLATINUM,NICKEL AND COPPER RTDS, GENERATE SIMULATE TEMPERATURE SIGNALS, WILL ALSO MEASURE INSULATION LEAKAGE AND FREQUENCY FROM 8 HZ TO 40KHZ |