For proper evacuation and dehydration of refrigeration and air-conditioning systems, an electronic vacuum gauge is an indispensable companion to a vacuum pump. Significant dehydration does not occur until a vacuum of 1000 microns or greater has been achieved. Use of electronic vacuum gauges is the only way to determine when dehydration is occurring and when it is complete.
Imperial-Thermal Engineering Vak-Checks are precision thermistor vacuum gauges designed especially for refrigeration and air-conditioning service. They automatically compensate for changes in ambient temperature and permit continuous monitoring during evacuation. These instruments are compact, lightweight, easy to use, and read directly in microns on a large easy-to-read meter.
4501 Battery-Only Thermistor Vacuum Gauge
- Atmoshere to 10 microns.
- Ambient temperature compensated.
- Accuracy: 200-1000 microns: ±5%.
- Comes complete with Model 4510 Sensor.
- Battery powered, no searching for outlets (2 “D” cell batteries not included).