Edwards WRG-S-NW35 Part No. D14703000 Wide Range Gauge

Description

BOC Edwards wide range gauge. Tested and fully functional. Measures vacuum from atmospheric pressure to below 1x10-7 torr. Picture 2 shows gauge hooked to vacuum system operating at ~1x10-6 torr (display not included in listing). Conflat 2.75 flange.
Additional information from Edwards:
Overview
The Wide Range Gauge (WRG) family offers the capability of single port pressure measurement in the range atmosphere to 10
-9
mbar with a linear output. Its a compact solution, halving the space and connectivity hardware requirement, which can be all important in many applications. The WRG has many novel features, including a new patented striker, pushbutton calibration and set point controls and comprehensive diagnostics. The WRG is a cost-effective vacuum management solution when used either with a Edwards controller or directly integrated into the system controls.
Technology
The WRG is a combination gauge, using Pirani technology for the upper pressure range, with a seamless switch over to an inverted magnetron for the lower range.
For ease of operation and more accurate pressure reading, the vacuum setting of the Pirani gauge is set automatically, while a single pushbutton sets atmospheric pressure. The WRG has an easy-to-program set-point which operates over the entire measurement range.
The magnetron uses an advanced technique for highly reliable striking, even at high vacuum or in relatively contaminated conditions. To optimize the lifetime of the gauge, the magnetron HT voltage is reduced after ignition and the magnetron operates with a low discharge current.
The WRG meets EMC requirements for both light industrial emissions and heavy industrial immunity.
Applications
Any vacuum system where there is a need to measure pressure over a wide range. The WRG with an AGD represents a very simple and cost effective means of achieving this.
The linear output and equation make WRG’s an attractive option for industrial OEM’s where the gauge may be directly integrated into the process controller.
The WRG is suitable for a wide range of HV and UHV applications, however if your process will spend a significant amount of time between 5x10
-4
and 5x10
-3
mbar then Edwards recommend using independent APG100 Pirani and AIM Penning gauges, as this will improve gauge reliability for your application.