Vacuum Gauge, Cold Cathode Sensor, 1 x 10-11 to 1 x 10-2 Torr, NW40 ISO-KF_1106969
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Vacuum Gauge, Cold Cathode Sensor, 1 x 10-11 to 1 x 10-2 Torr, NW40 ISO-KF

TypeVacuum Gauge
Sensor typeCold Cathode
Measurement Range1 x 10-11 to 1 x 10-2 Torr
Fitting TypeNW40 ISO-KF
ConnectorsTube Side: molded connector with a positive locking bolt, Controller Side: bayonet connector and threaded coaxial connector
Exposed MaterialsStainless steel, 6061 aluminum, Inconel®, glass and alumina ceramic
Repeatability5% of reading at constant temperature
Bake out temperature400°C (752°F) with CF flanges and magnet and cable removed
Operating Temperature0 - 70°C
Calibration GasAir, Nitrogen
Installation OrientationAny
Internal Volume15 cm3 max.
423 I-Mag® dimensional drawing
423 I-Mag® manual
937B Gauge Controller data sheet
943/423/421 data sheet
MKS Vacuum Gauge, Controller, & Module product overview
Overview

The 104230001 I-Mag® Cold Cathode Vacuum Sensor features a 1 x 10-11 to 1 x 10-2 Torr vacuum measurement range and a size NW40 ISO-KF fitting. The I-Mag® 423 vacuum sensor is lower-cost, more compact, and has a higher bake-out temperature than a comparable 431 series sensor. It is based on the ionization probability of the gas, with the ionization as a result of a high voltage discharge of electrons. These cold cathode pressure vacuum sensors are based on an inverted magnetron design, for an increased measurement range. The dual feedthrough for ion collection is a unique feature, making the pressure reading more accurate than other cold cathode vacuum and pressure sensors.

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