Passive Gauges

R&D > OTHER PRODUCTS > INSTRUMENTATION  > PASSIVE GAUGES

Edwards is proud to introduce our new range of passive gauge heads and controllers, selected specifically to complement the current Edwards range of active gauges and controllers. These passive gauges offer a solution for measuring pressure in a wide range of applications, from UHV systems to process industries or wherever the use of an active gauge is not possible e.g. Cyclotrons. 

Pirani Gauge

5x10⁻⁴ to 1000 mbar

Penning Gauge

1⁻⁹ to 10⁻²mbar

Bayard-Alpert Ion Gauge

2⁻¹¹ to 10⁻² mbar

Extractor Ion Gauge

2⁻²to 10⁻⁴ mbar

New Gauge Controller

Radiation resistant and Bakeable Gauge system

Selecting the right Gauge for your application

 

Pirani Gauge Sensors

(Thermal Conductivity Technology)

Range 5x10⁻⁴  to 1000 mbar

Tungsten or platinum filament

Cost-effective sensing cell

Fully aligned and temperature compensated 0 to +40°C

Constant filament temperature

Technical data

Measurement range

Filament

Permissible overload (abs.), max.

Vacuum connection

Materials in contact with the medium

mbar

bar

PRG20K - NW16

5 x 10-4 to 1000

Tungsten

3

NW16

Aluminum, Vacon, Glass, Tungsten, CrNi 8020 Nickel plated steel, epoxy adhesive

PRG20K - DN16CF

5 x 10-4 to 1000

Tungsten

10

DN16CF

Stainless steel, Vacon, Tungsten, CrNi 8020 ceramics, Al2 O3 , NiFe 42

PRG20KCR - NW16

5 x 10-4 to 1000

Platinum

10

NW16

Stainless steel 1.4301 (SS 304), Al2 O3 , CrNi 8020, Platinum

Penning Gauge Sensors

(Cold Cathode Ionisation Technology)

Rugged

Insensitive to air inrushes and vibrations

Easy disassembly and cleaning

Exchangeable cathode plate

Improved ignition characteristic

Measurement range

High voltage supply (anode potential)

Trigger voltage

Operation voltage

Materials in contact with the medium

mbar

kV

kV

Vacuum connection

CPG35K NW25

1 x 10-9 to 10-2

3.3

1.6

Stainless steel, Nichrome, Ceramics, Titanium

NW25

CPG35K NW40

1 x 10-9 to 10-2

3.3

1.6

Stainless steel, Nichrome, Ceramics, Titanium

NW40

CPG35K DN40CF

1 x 10-9 to 10-2

3.3

1.6

Stainless steel, Nichrome, Ceramics, Titanium

DN40CF

CPG35KB DN40CF

1 x 10-9 to 10-2

3.3

1.6

Stainless steel, Nichrome, Ceramics, Titanium

DN40CF

Ion Gauge Sensors

(Hot Cathode Ionisation Technology)

Exchangeable cathode

High accuracy measurements

Range: 10⁻⁴  to 2 x 10⁻⁹  mbar

Protection shield welded in place

Significant reduction of X-ray and
ion desorption effects

Technical data

Measurement range

X-ray limit

Material

Cathode

Anode

Collector

Reflector

Sensitivity for nitrogen

Vacuum connection

mbar

mbar

mbar-1

IG40 BA

2 x 10-11 to 10-2

≤10-11

Iridium with yttrium oxide coating

Pt/Ir 90/10 and Mo/pt wrapped wire

Tungsten

17.0

DN40CF

IG40 EX

2 x 10-12 to 10-4

≤10-12

Iridium with yttrium oxide coating

Mo and CoNiCr

Tungsten

NiFe

6.25

DN40CF

Selecting Your controller

Edwards PGC201 controller covers the pressure range between 10⁻⁹ and 1000 mbar by combining two measurement principles from the PRG and CPG gauges. The PGC202 combines PRG gauges and IG40 BA or IG40 EX gauges for measurements of vacuum pressures in the range between 10⁻¹² and 1000 mbar. Both these controllers provide monitoring and control functions for the connected gauges.

Technical Data

Measurement range

Channel 1, 2 (PRG)

Channel 3

(CPG)

(IG40 BA)

(IG40 EX)

Measurement uncertainty

PRG

CPG

IG40 BA/EX

Adjustable switching thresholds

PRG

CPG

IG40 BA

IG40 EX

Power Consumption

mbar

mbar

mbar

mbar

mbar

mbar

mbar

mbar

W

Pirani/Penning Controller PGC201

5 x 10-4 to 1000

10-9 to 10-2

-

-

≤20% of the measured value in the range 10⁻³ to 10⁻² mbar (± 20%) in the range 10⁻² to 10² mbar (± 15%)

± 30% of the measured value in the range 10⁻⁸ to 10⁻⁴ mbar

5 x 10-3 to 500

1 x 10-8 to 9.9 x 10-3

<10

Pirani/Ion Controller PGC202

5 x 10-4 to 1000

-

2 x 10-11 to 10-2

2 x 10-12 to 10-4

≤20% of the measured value in the range 10⁻³ to 10⁻² mbar (± 20%) in the range 10⁻² to 10² mbar (± 15%)

+/- 2% of the measured value

5 x 10-3 to 500

1 x 10-8 to 5 x 10-3

1 x 10-11 to 1 x 10-11

<60

Subscribe