The Digital VT/CVT Vacuum Gauge Meters are available for three of THI’s most popular gauge tube families: DV-4, DV-5, and DV-6. These tubes utilize THI’s rugged but sensitive noble metal thermocouples that are designed specifically for each range. Tubes are matched and interchangeable without calibration adjustments. They are compensated for temperature and rate of temperature change and are corrosion resistant. The microprocessor converts the measurement to a pressure reading by employing the gauge tube’s well-defined output/pressure relationship. The result is displayed using a bright 3-digit green LED display
The Teledyne Hastings Instruments (THI) Reference Tube is an evacuated, sealed vacuum gauge tube accurately calibrated to precisely simulate a gauge tube at a given operating pressure. It is electrically equivalent to the metal and glass gauge tubes used with THI instruments. It permits quick and easy recalibration of THI Vacuum Gauge Indicators by merely plugging the instrument into the reference and adjusting the calibration “current set” potentiometer
until the instrument reads the exact pressure noted on the reference. THI Reference Tubes are available equivalent to most THI Gauge Tubes.
The NALL Flow Meter is the meter that started a legacy. Operating on a unique thermal principle, the NALL Series is the choice for high temperatures and adverse environmental applications. Inherently linear, the flexible NALL separates the transducer from the electronics and can meter a wide range of flow.
The NALL series meters have flow ranges from 0-10 sccm to flows of 0-15,000 slm; provide analog outputs, ultra-low pressure drops, all-metal (standard), can be hermetically sealed and operate up to 200℃. The full-scale range is specified by the end-user. A NIST traceable calibration certificate is standard. Available in Monel for use with corrosive gases.
The HVG-2020B wide range, dual-sensor vacuum gauge takes measurement to the next level. With a Piezo based sensor and a thermal-based Pirani sensor accurately and confidently measure pressures across seven decades. The Piezo sensor is media isolated, gas composition independent, and periodically zeroed by the Pirani sensor. An ambient thermal sensor enables the instrument to adjust for temperature and therefore better accuracy.
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