| SCALE CALIBRATION | 0 TO 10 MEG OHMS RESISTANCE |
| SCALE OVERALL ACCURACY RATING IN PERCENT | -0.150 TO 0.150 |
| ADJUSTMENT METHOD | ROTARY SWITCH |
| BALANCE INDICATOR TYPE | GALVANOMETER |
| DC VOLTAGE RATING | 1.5 VOLTS NOMINAL |
| OVERALL LENGTH | 8.875 INCHES NOMINAL |
| OVERALL WIDTH | 7.375 INCHES NOMINAL |
| OVERALL HEIGHT | 5.375 INCHES NOMINAL |
| FUNCTIONAL CLASSIFICATION | AA-1.3 |
| FUNCTIONAL DESCRIPTION | A PORTABLE WHEATSTONE BRIDGE USED TO MEASURE DC RESISTANCE OF ELECTRICAL COMPONENTS & AS AUXILIARY RESISTANCE BOXES; USED TO SUPPORT AN/ARN-30 ( ),AN/ASN-23,AN/ASN-23,AN/ASN-43,& PU-542( )/A |
| TYPE/MODEL DESIGNATION | ZM-4( )/U |
| RELATIONSHIP TO SIMILAR EQUIPMENT | WHEN EXHAUSTED USE 6625007774402; INTERCHANGEABLE W/ 6625002434845,6625005728800,6625006492868,6625000600960,6625004901724,6625006493055,6625004460,6625005538240; SUITABLE SUBSTITUTE 6625004041592 |
| REFERENCE DATA AND LITERATURE | DEPT OF ARMY PUBLICATIONS: TM-2019 W/ CHANGES 1&3 OCT 57,TM11-6625-249-12P JUN 57,TM11-6625-249-35P JUL 59,TB11-6625-249-35/1; LEEDS & NORTHRUP 5-5300 |
| ENTRY DATE | 70-08-15 |
| CASE MATERIAL | WOOD |
| SPECIAL FEATURES | INTERNAL BATTERY PROVISION INCLUDED |
| SPEC/STD CONTROLLING DATA | |
| MANUFACTURERS CODE | 81349 |
| NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | ZM4U |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 80058 |
| DESIGN CONTROL REFERENCE | ZM4U |