Teledyne Hastings DV-4D thermocouple vacuum gauge tubes have an extra strong housing and can measure pressure between 1 and 100 mTorr (0.001 to 0.1 Torr). Teledyne Hastings DV-5M vacuum sensors are calibrated for nitrogen or air, but conversion factors for other gases are available. The Teledyne Hasting DV-5M tubes are matched and interchangeable without calibration adjustments. The DV-5M thermocouple tubes are for use with Teledyne Hastings Digital or Analog VT-6 thermocouple gauge controllers. These DV-5M tubes have a standard 1/8 inch male NPT vacuum fitting are brand new with full Teledyne Hastings warranty (DV-5M Stock Number 67-6). Thermocouple sensors (thermal conductivity gauges) rely on the fact that the ability of a gas to conduct heat decreases with pressure. In this type of gauge, a wire filament is heated by running current through it. A thermocouple or Resistance Temperature Detector (RTD) can then be used to measure the temperature of the filament. This temperature is dependent on the rate at which the filament loses heat to the surrounding gas, and therefore on the thermal conductivity. A common variant is the Pirani gauge which uses a single platinum filament as both the heated element and RTD. These gauges are accurate from 10 Torr to 10−3 Torr, but they are sensitive to the chemical composition of the gases being measured (from Wikipedia.org).

Teledyne Hastings DV-5M-VCR thermocouple vacuum gauge tubes have an extra strong housing and can measure pressure between 1 and 100 mTorr (0.001 to 0.1 Torr). Teledyne Hastings DV-5M-VCR vacuum sensors are calibrated for nitrogen or air, but conversion factors for other gases are available. The Teledyne Hasting DV-5M-VCR tubes are matched and interchangeable without calibration adjustments. The DV-5M-VCR thermocouple tubes are for use with Teledyne Hastings Digital or Analog VT-6 thermocouple gauge controllers. These DV-5M-VCR tubes have a standard 1/8 inch male NPT vacuum fitting are brand new with full Teledyne Hastings warranty (DV-5M-VCR Stock Number 55-230). Thermocouple sensors (thermal conductivity gauges) rely on the fact that the ability of a gas to conduct heat decreases with pressure. In this type of gauge, a wire filament is heated by running current through it. A thermocouple or Resistance Temperature Detector (RTD) can then be used to measure the temperature of the filament. This temperature is dependent on the rate at which the filament loses heat to the surrounding gas, and therefore on the thermal conductivity. A common variant is the Pirani gauge which uses a single platinum filament as both the heated element and RTD. These gauges are accurate from 10 Torr to 10−3 Torr, but they are sensitive to the chemical composition of the gases being measured (from Wikipedia.org).

PN: DB-18, NIST-DV-5M The Teledyne Hastings Instruments (THI) DB-18 Reference Tube is an evacuated, sealed vacuum gauge tube accurately calibrated to precisely simulate a gauge tube at a given operating pressure. This Teledyne Hastings Instruments DB-18 Reference Tube it is electrically equivalent to the Gauge Tube DV-5M series Range 0-100 mTorr, used with THI instruments. The DB-18 Reference Tube 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. Part Number DB-18.

This Teledyne-Hastings model VT-5A (VT-5A-X-Y) panel mount gauge controller for DV-5 thermocouple vacuum tube gauges measures between 0 and 100 mTorr, and operates on 115/230 VAC. A removeable round rear cover provides access to the AC power, gauge tube, and output terminals (0-1 VDC analog, non-linear). Includes gauge cable. Please see the Gauge Controller manual in the downloads for specs and information. Thermocouple tubes and AC power cable sold separately.

This Teledyne-Hastings model DCVT enclosed cabinet gauge controller for DV-5 thermocouple vacuum tube gauges controllers measures between 0.1 and 100 mTorr, and operates on 115 VAC. This model has connected power and gauge tube cables. It also features BNC connectors on the back for output (0-1 VDC analog, non-linear). Please see the Gauge Controller manual in the downloads for specs and information. Thermocouple tubes are sold separately. FEATURES Linear Analog Output (DCVT):     0 - 1 VDC / 0 - 5 VDC / 0 - 10 VDC     0 - 20 mA / 4 - 20 mA Digital Output - RS232 (DCVT) Dual Setpoint Control Relays (DCVT)Bright, Easy-to-Read Digital Display

This is a replacement octal socket for all Teledyne-Hastings thermocouple vacuum gauge tubes including all DV-4, DV-5, DV-6 and DV-23 gauges. Use to replace a broken part, or to make your own gauge cable. We stock most Teledyne Hastings thermoucouple gauge tubes and gauge controllers.

This is a replacement AC power cord for all enclosed analog Teledyne-Hastings thermocouple vacuum gauge controllers. We stock most Teledyne Hastings thermoucouple gauge tubes, reference tubes, and gauge controllers.

This is a replacement octal socket cable 8 ft. for all Teledyne-Hastings thermocouple vacuum gauge tubes including all DV-4, DV-5, DV-6 and DV-23 gauges. We stock most Teledyne Hastings thermoucouple gauge tubes and gauge controllers.