903 Inverted Magnetron Cold Cathode Vacuum Transducer

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Overview

Using the inverted magnetron design principle, the 903 Inverted Magnetron Cold Cathode Vacuum Transducer can operate at pressures much lower than a traditional cold cathode vacuum sensor. The 903 vacuum gauge has a second feedthrough for ion collection, ensuring accurate reading results. Its rugged design and ability to efficiently operate in harsh environments provide fast, dependable, and stable pressure vacuum measurement.

Wide pressure measurement range from 3 x 10^-10 to 5 x 10^-3 Torr
Integrated electronics for space and cost savings
Isolated ion collector increases sensor’s resistance to effects of contamination
High voltage can be deactivated at higher pressures to lower risk of sensor contamination
One set point with LED status indicator is standard for process control
No filament to burn out for low maintenance

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Products

Compare	Model	Compatibility	rankScore	Type	Measurement Range	Fitting Type	Availability	Price
109030001 Cold Cathode Vacuum Transducer, Inverted Magnetron, NW40 ISO-KF $1,100 Contact Us	109030001 Cold Cathode Vacuum Transducer, Inverted Magnetron, NW40 ISO-KF	UNIVERSAL	1.0	Inverted Magnetron Transducer	3.0 x 10^-10 - 5.0 x 10^-3 Torr	ISO-KF	Contact Us	$1,100
109030002 Cold Cathode Vacuum Transducer, Inverted Magnetron, 2.75 in. CF $1,125 Contact Us	109030002 Cold Cathode Vacuum Transducer, Inverted Magnetron, 2.75 in. CF	UNIVERSAL	1.0	Inverted Magnetron Transducer	3.0 x 10^-10 - 5.0 x 10^-3 Torr	CF Flange	Contact Us	$1,125
109030003 Cold Cathode Vacuum Transducer, Inverted Magnetron, 1 in. Tube $1,100 Contact Us	109030003 Cold Cathode Vacuum Transducer, Inverted Magnetron, 1 in. Tube	UNIVERSAL	1.0	Inverted Magnetron Transducer	3.0 x 10^-10 - 5.0 x 10^-3 Torr	1 in. Tube	Contact Us	$1,100
109030004 Cold Cathode Vacuum Transducer, Inverted Magnetron, NW25 ISO-KF $1,100 Contact Us	109030004 Cold Cathode Vacuum Transducer, Inverted Magnetron, NW25 ISO-KF	UNIVERSAL	1.0	Inverted Magnetron Transducer	3.0 x 10^-10 - 5.0 x 10^-3 Torr	ISO-KF	Contact Us	$1,100

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Specifications

Sensor Type

Inverted Magnetron Cold Cathode
Installation Orientation

Any
Measurement Range

3 x 10^-10 to 5 x 10^-3 Torr
Set Point Range

3 x 10^-10 to 5 x 10^-3 Torr (standard 903 only)
Repeatability

Approximately 5% of reading
Calibration Gas

Air, Nitrogen
Connector

9-pin Type "D"
Operating Temperature

0° to 50° C (32° to 122° F)
Bake Out Temperature

400° C (752° F) without electronics
Relative Humidity

80% maximum for temperatures less than 31° C, decreasing linearly to 50% maximum at 40° C
Relays

1 SPDT relay set point (standard 903 only)

Relay Contact Rating

1 A @ 30 VDC, resistive
Relay Response

< 50 msec (0 to 99%) for Δp from 5.0 x 10-8 to 3.0 x 10-4 Torr
Power Requirements

14 to 30 VDC, 3 Watts max
Voltages

903 (Standard): 1.5 to 8.7 VDC
903 (AP): 0.5 to 7.7 VDC
Exposed Materials

304 and 302 stainless steel, aluminum, Inconel® x-750, glass, alumina ceramic
Case Material

ABS plastic, UL94-5V flame rating (with conductive coating)
Internal Volume

15.0 cc
Weight

2.3 lb (1.04 kg) with CF Flange
Display

903 (Standard) LED Indications: Set point (red), high voltage (yellow), and power (green)
903 (AP) LED Indications: Vacuum (red), high voltage (yellow), and power (green)
Compliance

CE

Specifications

Sensor Type

Inverted Magnetron Cold Cathode
Installation Orientation

Any
Measurement Range

3 x 10^-10 to 5 x 10^-3 Torr
Set Point Range

3 x 10^-10 to 5 x 10^-3 Torr (standard 903 only)
Repeatability

Approximately 5% of reading
Calibration Gas

Air, Nitrogen
Connector

9-pin Type "D"
Operating Temperature

0° to 50° C (32° to 122° F)
Bake Out Temperature

400° C (752° F) without electronics
Relative Humidity

80% maximum for temperatures less than 31° C, decreasing linearly to 50% maximum at 40° C
Relays

1 SPDT relay set point (standard 903 only)

Relay Contact Rating

1 A @ 30 VDC, resistive
Relay Response

< 50 msec (0 to 99%) for Δp from 5.0 x 10-8 to 3.0 x 10-4 Torr
Power Requirements

14 to 30 VDC, 3 Watts max
Voltages

903 (Standard): 1.5 to 8.7 VDC
903 (AP): 0.5 to 7.7 VDC
Exposed Materials

304 and 302 stainless steel, aluminum, Inconel® x-750, glass, alumina ceramic
Case Material

ABS plastic, UL94-5V flame rating (with conductive coating)
Internal Volume

15.0 cc
Weight

2.3 lb (1.04 kg) with CF Flange
Display

903 (Standard) LED Indications: Set point (red), high voltage (yellow), and power (green)
903 (AP) LED Indications: Vacuum (red), high voltage (yellow), and power (green)
Compliance

CE

Features

Process Control Relay

The Standard 903 has one relay set point standard for process control that can be set to trip anywhere within its set point range. Set point activation status is shown with one of three LED indicators. Power and high voltage status are also indicated.

High Voltage Activation

The high voltage activation feature is a convenient way for you to shut off power to the 903 locally without shutting down your entire system. Deactivating the high voltage at pressures above 10^-2 Torr reduces the effects of contamination in the sensor.