CONVECTRON 375 CONTROLLER & SENSOR VACUUM GAUGE 275 275203 GRANVILLE PHILLIPS

Description

30 day warranty
You get everything pictured, The controller the original power supply, the interconnect cables, the sensor.  You get the operators manual on thumb drive 70 pages (not shown).
(see my other lab gear auctions too)
Manufacturer:
GRANVILLE PHILLIPS
Models :
CONVECTRON 375 VACUUM GAUGE CONTROLLER (CATALOG NUMBER 375001-T)
CONVECTRON SENSOR GAUGE PN: 275203
Tested:
The display changes when the pressure changes on the sensor. But I can't generate a known vacuum to test the calibration.   I'm backing it up though.  The keypad functions respond.
BACKGROUND INFO FROM THE MANU:
Vacuum Gauge Controller
The Series 375 Controller uses the latest electronic technology to operate the
Granville-Phillips Convectron Gauge. It provides accurate, reliable vacuum measurements
over seven decades from atmosphere to 1x10 -4 Torr (1x10 -4 mbar, 1 x10 -2 Pa). This
controller is easy to use with push-button controls that allow gauge calibration and
adjustment of setpoint values without the need for special tools. Its compact 1/8 DIN size
occupies half the space of older controllers, and its rugged all-metal package provides a
high level of noise immunity
The Series 375 controller can be used as a simple readout device for basic vacuum system
control or integrated into computer controlled systems. It provides a range of electrical
outputs including a selection of analog outputs, and options to add setpoint relays and
digital interfaces. It is designed for easy installation in panel-mount applications. The
small size, rugged construction and flexible design make the Series 375 Controller an
ideal solution for today’s vacuum system.
Convectron Gauge Technology
With over 20 years of successful field installations, the Granville-Phillips Convectron
Gauge has become an industry standard. It is a unique variation of thermal conductivity
gauges where pressure measurement is based on the rate of heat loss from a sensor wire.
Unlike traditional thermocouple and Pirani gauges, Convectron Gauges take advantage of
heat loss due to convection cooling at higher pressures. This extends the range of accurate,
reproducible vacuum measurements to atmosphere. To assure the highest level of accuracy
and gauge-to-gauge reproducibility, each Convectron Gauge is individually calibrated at
our factory.
Convectron Gauges are in use today on hundreds of thousands of vacuum processes
throughout the world, making them a wise choice for many vacuum applications.
Wide Measurement Range – Allows vacuum system performance to be monitored continu-
ously from atmosphere to 10 -4 Torr (10 -4 mbar, 10 -2 Pa).
Individual Gauge Calibration – Assures the highest level of accuracy and gauge-to-gauge
reproducibility. No pre-installation calibration is required.
High Measurement Resolution – Designed to take full advantage of Convectron Gauge
technology with 1 Torr (1 mbar, 0.1 kPa) resolution at atmosphere and 0.1 mTorr
(1x10 -4 mbar, 1x10 -2 Pa) resolution at low pressure.
Granville Phillips 275 Convectron Gauge Vacuum Pressure Measurement Sensor
Granville Phillips Part Number 275203 for NW KF16 flange size.
The 275 Granville Phillips convectron pressure measurement gauge tube sensor is the industry standard convection-enhanced Pirani gauge. The Granville Phillips 275 measures vacuum pressure from atmosphere to 1x10-4 Torr and are ideal for roughing and foreline pressure measurement. It provides reliable fast response measurement, in milliseconds rather than seconds as in the case with thermocouple-type gauges. The high accuracy of the Granville Phillips 275 Convectron vacuum gauge sensor and repeatablilty help insure that processes start at the desired pressure time-after-time. However, they are sensitive to the chemical composition of the gases being measured and are termed a relative pressure measurement method, that is, they determine the pressure indirectly from the thermal conductivity property of the gas medium.
Regards,
Paul