Active Wide Range Gauge WRG
Description
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. It’s 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 patented striker, push-button calibration and set point controls and comprehensive diagnostics. The WRG is a costeffective vacuum management solution when used either with an Edwards controller or directly integrated into the vacuum system controls.
Specification
• Single push-button atmosphere setting
• Ultra compact, featuring recessed electrical connector
• Easy service; both Pirani and magnetron elements are individually replaceable
• Low magnetic field version (SL) available for particularly sensitive applications e.g. mass spectrometry and microscopy
• Comprehensive failure mode diagnostics facility
• Compatible with Edwards TIC, TAG and ADC controllers
• D-type version including cable strain relief and enhanced ingress protection (IP44)
• Magnetron uses an advanced technique for highly reliable striking, even at high vacuum or in relatively contaminated conditions
• Automatic vacuum setting of Pirani gauge element
• Easily programmed set point covering entire measuring range
• Extended service intervals and gauge lifetime, through reduction of HT voltage after ignition and low discharge current
• Microprocessor signal processing gives seamless transition between Pirani and magnetron outputs as well as linear output (log pressure scale)
Technical parameters
| Pressure range | Atmosphere to 10-9 mbar/Torr |
| Accuracy * | Typically ±15% <100 mbar and ±30%<10-3 mbar |
| Maximum over pressure | 6 bar absolute (87 psia) |
| Power supply | +14.5 to +36 V d.c. |
| Power consumption | 2 W maximum |
| Output signal | 1.8 to 10.2 V d.c. |
| Adjustments | Atmosphere and setpoint |
| Set point | Open collector transistor |
| Maximum voltage | 40 V d.c. |
| Current | 100 mA maximum |
| Temperature range | |
| Operating | +5 to +60 oC |
| Storage | 0 to +70 oC |
| Materials exposed to vacuum (Both NW and CF versions) | Stainless steel (AISI 304, 316, 321, 347), Fluoroelastomer, soda lime glass, Tungsten, trace of Nickel and Nickel Iron |
| Internal volume | 26 cm3 |
| Weight | 0.8 kg |
| External interface connector | 8-way FCC68 / RJ45 Socket |
| Interface cables | Use range of active gauge cables |
| Standards | |
| Electromagnetic compatibility | EN 61326 Industrial Location, Class B emissions |
| Enclosure rating | IP40 |
* Accuracy is reduced at the limits of the measuring range.
Applications
Ultra high vacuum
High vacuum
Medium vacuum
Low vacuum
Vacuum range: 10-9 – 10 mbar