nWRG Series (digital)

Part Number: D02691880, D14790880

Broad Range Vacuum Gauging

When measuring pressure over a large range and requiring exceptional accuracy throughout, broad range vacuum gauges are the ideal option. To guarantee the precision and control of your system, you need trustworthy vacuum gauges. The AIM Series Cold Cathode Gauge, the WRG Series Cold Cathode Combination Gauge, and the APG Series Pirani Gauge are some of our vacuum gauging options.

nWRG Series (digital)

Wide range gauges from the Edwards nWRG series provide single port pressure measurement in the atmosphere to 10-9 mbar range. These are the latest digital gauges, which have shown to be dependable and robust in a variety of settings, from industrial operations to research instrumentation.

The nWRG gauges include a serial output, a changeable sensor tube, and a compact design for simple installation. It is expected that the digital gauges will work with the next active gauge controllers and displays as well as the next generation of Edwards instruments. Because of their lead-free construction, they are CSA and C/US approved and fully comply with RoHS regulations.

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Features and Benefits

Operating voltage range for the wide-ranging supply voltage is 15 to 48 V d.c.
The user can store gauge identifying data by using gauge naming.
Automatic Pirani gauge element vacuum setting
Fast striking is ensured by a unique striker design, even in contaminated or high vacuum environments.
Version L with a low external magnetic field for delicate analytical instruments (patented)
Simple ASCII inquiry and command protocol that may be used in a point-to-point or multidrop system with little overhead is the foundation of serial communications.
Open collector set-point output that may be adjusted for simple process control and interconnecting
Easy-to-connect NW25 flange for vacuum system connections; additional flange options available upon request; CSA and C/US approved; satisfies safety standards for electrical equipment; RS485 or RS232 versions 9600 to 38400 baud, 8 bits, 1

Specifications

General Product Information

Connection Vacuum Inlet Flange DN 25 ISO-KF (NW25)
Weight 0.800 kg
Supply Voltage DC 15-48V
Dimension Length 0.065 m
IP Rating IP40
Supply Frequency DC Voltage
Dimension Height 0.112 m
Dimension Width 0.065 m
Connection Power DSUB 9-PIN – Male

Environmental Conditions

Temperature Ambient Operation Max 333.15 K
Temperature Ambient Operation Min. 278.15 K
Temperature Ambient Storage Min. 273.15 K
Temperature Ambient Storage Max. 343.15 K

Classification

Product Pressure Range High Vacuum – 1*10-3 – 1*10-7 mbar


Rough Vacuum 1000 mbar – 1 mbar


Ultra High Vacuum – 1*10-7 – 1*10-11 mbar


Principle Of Measurement Cold-cathode Pirani combination vacuum gauge (IM inverted magnetron)

Material of Construction

Material Exposed To Vacuum Stainless steel; Nickel; Nickel plated NiFe; Glass; Fluoroelastomer
Material Filament Tungsten

Performance Data

Measurement Uncertainty < 100 mbar ±15%


> 1×10-3 mbar ±30%


Power Consumption Max 2W
Pressure Measurement Max. 1.013 × 10⁵ Pa
Pressure Measurement Min.. 1.000 × 10⁻⁷ Pa

Operation Conditions – Limitations

Temperature Baking Max. (Elec. Removed) 343.15 K
Pressure Inlet Max Overpressure 6.000 × 10⁵ Pa

Connectivity – Communication Interface

Communication Interfaces Customer RS485 (serial)
Connection electrical comms interface connector DSUB 9-PIN – Male
Setpoint Quantity 1
Status Indicator LED

Variants

Variant Gauges nWRG (digital WRG, standard variant)

Variants

nWRG – RS485 NW25

Connection electrical comms interface connector DSUB 9-PIN – Male
Connection Vacuum Inlet Flange DN 25 ISO-KF (NW25)
Pressure Measurement Max. 1.013 × 10⁵ Pa
Pressure Measurement Min.. 1.000 × 10⁻⁷ Pa

nWRG – RS485 DN 40 CF

Connection electrical comms interface connector DSUB 9-PIN – Male
Connection Vacuum Inlet Flange DN 40 CF (2.75″)
Pressure Measurement Max. 1.013 × 10⁵ Pa
Pressure Measurement Min.. 1.000 × 10⁻⁷ Pa

nWRG – RS232 NW25

Connection electrical comms interface connector DSUB 9-PIN – Male
Connection Vacuum Inlet Flange DN 25 ISO-KF (NW25)
Pressure Measurement Max. 1.013 × 10⁵ Pa
Pressure Measurement Min.. 1.000 × 10⁻⁷ Pa

nWRG – RS232 DN 40 CF

Connection electrical comms interface connector DSUB 9-PIN – Male
Connection Vacuum Inlet Flange DN 40 CF (2.75″)
Pressure Measurement Max. 1.013 × 10⁵ Pa
Pressure Measurement Min.. 1.000 × 10⁻⁷ Pa

nWRG-L – RS485 NW25

Connection electrical comms interface connector DSUB 9-PIN – Male
Connection Vacuum Inlet Flange DN 25 ISO-KF (NW25)
Pressure Measurement Max. 1.013 × 10⁵ Pa
Pressure Measurement Min.. 1.000 × 10⁻⁷ Pa

nWRG-L – RS485 DN 40 CF

Connection electrical comms interface connector DSUB 9-PIN – Male
Connection Vacuum Inlet Flange DN 40 CF (2.75″)
Pressure Measurement Max. 1.013 × 10⁵ Pa
Pressure Measurement Min.. 1.000 × 10⁻⁷ Pa

nWRG-L – RS232 NW25

Connection electrical comms interface connector DSUB 9-PIN – Male
Connection Vacuum Inlet Flange DN 25 ISO-KF (NW25)
Pressure Measurement Max. 1.013 × 10⁵ Pa
Pressure Measurement Min.. 1.000 × 10⁻⁷ Pa

nWRG-L – RS232 DN 40 CF

Connection electrical comms interface connector DSUB 9-PIN – Male
Connection Vacuum Inlet Flange DN 40 CF (2.75″)
Pressure Measurement Max. 1.013 × 10⁵ Pa
Pressure Measurement Min.. 1.000 × 10⁻⁷ Pa

Instruction Manual

Digital Wide Range Gauge (nWRG)-Instructions

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