Active Pirani Vacuum Gauge

Edwards APG series are Active Pirani vacuum gauges which filament forms one arm of a Wheatstone bridge which is balanced at atmospheric pressure and becomes unbalanced as the pressure decreases.

They are available in two versions, electrical and digital, and each of them in two models, the -M is the standard model and measures to 10⁻³ mbar, the -LC is a corrosion resistant version with measurement to 10⁻⁴ mbar.

The newest Pirani, the APG200 series high performance compact Pirani Gauge is the perfect vacuum solution across a spectrum of applications due to its compact size, LED light ring and integrated set points.

All gauges feature compact size for easy installation, a serial output and a replaceable sensor tube. They are also CSA and C/US approved as well as fully RoHS compliant due to their lead-free construction.

Technical Data Summary

Pressure range

Accuracy

Max overpressure

Storage Temperature

Bake out Temperature

Filament types

Connectors

Indicator

Supply Voltage

Flanges

interface

mbar

mbar

bar

ºC

ºC

APG100-XM

10³ to 10⁻³

+/- 15% at <100

10 absolute

5 to 60

80

Tungsten

RJ45

-

20 to 36

NW16/NW25/DN16CF/ Bare tube

Electrical

APG100-XLC

10³ to 10⁻⁴

+/- 15% at <10

10 absolute

5 to 60

80

Platinmum

RJ45

-

13 to 32

NW16/NW25/DN16CF/ Bare tube

Electrical

nAPG-M

Atm. to 10⁻³

+/- 15% at <100

10 absolute

5 to 60

150

Tungsten

RJ45/9 Pin

LED lamp

13 to 32

NW16/NW25

Digital / Fieldbus

nAPG-LC

Atm. to 10⁻⁴

+/- 15% at <10

10 absolute

5 to 60

150

Platinmum

RJ45/9 Pin

LED lamp

13 to 32

NW16/NW25

Digital / Fieldbus

APG200

Atm. to 10⁻⁴

+/- 50% at <1000

+/- 15% at <100

  +/- 50% at 10⁻³

10 absolute

5 to 60

150

Tungsten/Platinmum

RJ45/9 Pin

Bright Ring

13 to 50

NW16/NW25/DN16CF/ Bare tube/ 1/8", 4/8VCR

Electrical / Digital

Features & Benefits

Robust Filament for Harsh applications

Our latest APG200 gauge is famed for harsh duties (with filaments made of Tungsten/Rhenium, Platinum/Rhodium and Platinum/Iridium), ensuring that your Fab is running 24/7 even in these conditions is vital. Therefore strict monitoring of all parts can ensure maximum uptime.

Set point relay

The APG200 has a dedicated set point relays available, enabling you to trigger a wide range of knock on actions.

Remote calibration possible

Sensor tube can be baked to 150°C

Minimising the space

Cable connections and gauge adjustment conveniently located, thereby minimising the space envelope required for access

Adjustable open collector set-point output for simple process control and interlocking

Digital version

RS485 or RS232 versions. 9600 to 38400 baud, 8bits, 1 start bit, 1 stop bit, no parity

CSA and C/US approved

meets the safety requirements for electrical equipment for measurement

Dimensions

Dimensions mm (inch)

Documentation & Media