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275 Mini-Convectron® Vacuum Pressure Transducers
275 Mini-Convectron® Vacuum Pressure Transducers
275 Mini-Convectron® modular vacuum transducers features a compact design and dramatically reduced installation costs. These Granville-Phillips® vacuum gauges are ideal for applications where controller size and local control are critically important. The 275 series combines the industry-standard Convectron® gauge with electronics in a compact, modular design. They are capable of measuring from atmosphere to 1x10-4 Torr and are available with analog output, RS485 interface, and DeviceNet interface.
- Absolute pressure measurement from atmosphere to 10-4 Torr
- Compact and rugged all-metal package is virtually immune to RF interference
- All functions programmable through RS485 or DeviceNet interfaces
- Easy-to-read three-digit displays allow pressure readings at point-of-use
- Basic models come with one or two setpoint relays for use as a pressure switch See All Features
| Compare | Description | Drawings, CAD & Specs | Avail. | Price | ||
|---|---|---|---|---|---|---|
 | 275330-GDPressure Gauge, Mini-Convectron, NW16 ISO-KF, Analog, Tungsten | |||||
| 275330-GEPressure Gauge, Mini-Convectron, NW25 ISO-KF, Analog, Tungsten | |||||
| 275330-GFPressure Gauge, Mini-Convectron, 1.33 in. CF, Analog, Tungsten | |||||
| 275330-GGPressure Gauge, Mini-Convectron, 2.75 in. CF, Analog, Tungsten | |||||
| 275330-GKPressure Gauge, Mini-Convectron, NW40 ISO-KF, Analog, Tungsten | |||||
| 275330-GPPressure Gauge, Mini-Convectron, 0.125 in. NPT, Analog, Tungsten | |||||
| 275330-GQPressure Gauge, Mini-Convectron, 4 VCR Female, Analog, Tungsten | |||||
| 275330-GRPressure Gauge, Mini-Convectron, 8 VCR female, Analog, Tungsten | |||||
 | 275400-1-GD-TPressure Gauge, Mini-Convectron, NW16 ISO-KF, Non-linear Analog, 1 Relay, Tungsten | |||||
| 275400-1-GE-TPressure Gauge, Mini-Convectron, NW25 ISO-KF, Non-linear Analog, 1 Relay, Tungsten |
Configuration Options
The following options are available for 275 Mini-Convectron® Vacuum Pressure Transducers
Ordering Code Example: 275600-0-GD-T
| Configuration Option | Option Code |
|---|---|
| 275 Vacuum Pressure Transducer | 275 |
Display |
|
| Without display (All interface options, 1 or 2 set points) | 4 |
| With display (Analog, DeviceNet, 0 or 2 set points) | 6 |
Interface |
|
| Analog | 00 |
| RS485 (Available only with 2 set points, no display) | 10 |
| DeviceNet (Available only with 2 set points) | 20 |
Relay Set Points |
|
| No Relay Set Points (Analog with display only) | 0 |
| 1 Relay Set Point (Analog without display only) | 1 |
| 2 Relay Set Points (Analog, RS485 no display, DeviceNet with display) | 2 |
Filaments |
|
| Gold-plated Tungsten | G |
| Platinum | P |
Fitting |
|
| NW16 ISO-KF | D |
| NW25 ISO-KF | E |
| 1.33 in. OD CF | F |
| 2.75 in. OD CF | G |
| NW40 ISO-KF | K |
| 0.125 in. NPT | P |
| 4 VCR female | Q |
| 8 VCR female | R |
Measurement Units |
|
| Torr | T |
| mbar | M |
| Pa | P |
Specifications
- Digital CommunicationRS485 or DeviceNet™
- SensorGold-plated tungsten or Platinum
- Display3-digit green LED, automatic ranging (optional)
- Installation OrientationHorizontal preferred
- Measurement Range1x10-4 to 1000 Torr
1x10-4 to 1300 mbar
1x10-2 Pa to 130 kPa
for Air and N2 - Operating Temperature0-40°C
- Maximum Bakeout Temperature150°C maximum, non-operating, with electronics removed
- Analog Output0.375-5.659 VDC for 0 to 1000 Torr of N2, non-linear
- Internal Volume40 cc
- Electronic Casing and FlangeAluminum extrusion
- Weight340 gm (12oz) with 1/8 NPT fitting
- ComplianceCE
- Display ResolutionLeast significant digit on each range
Features
Mini-Convectron® Sensor Technology
Mini-Convectron® sensors are a unique variation of thermal conductivity gauges where pressure measurement is based on the rate of heat loss from a sensor wire. Unlike traditional thermocouple and Pirani gauges that use only conductive heat loss, Convectron gauges take advantage of heat loss due to convection at higher pressures. This extends the range of accurate, repeatable measurement to atmosphere.
Digital Display Version
Display Side (Analog shown)
The digital display option provides an easy-to-read, 3-digit green LED display that automatically adjusts between two ranges (Torr and mTorr or kPa and Pa).
Digital Interface Version
Parameter Adjustment Side (DeviceNet shown)
Versions with digital communications provides RS485 or DeviceNet interface for easy compatibility with computer controlled processes.
Analog Output
The provided analog output is non-linear 0.375 to 5.659 VDC for 0 to 1000 Torr of N2. 11.5 to 26.5 VDC, 1.6 W max is required to power the 275 Mini-Convectron® vacuum pressure transducer.
Resources
Literature
Vacuum Measurement Product Guide(711.5 kB, PDF) 275 Mini-Convectron® Module(313.3 kB, PDF)
Manuals
275 Module DeviceNet™ Quick Start Guide (275011)(445 kB, PDF) 275 Module with Nonlinear Analog Output Manual (275513)(2.2 MB, PDF) 275 Modules with RS485 Quick Start Guide (394.9 kB, PDF) 275 Module with DeviceNet™ Interface Manual (275565)(2.2 MB, PDF) 275 Module with Nonlinear Analog Output Quick Start Guide (275012)(788.3 kB, PDF) 275 Module ( 275420-1-GQ-T-00011 & 275420-1-PG-T-00001) with DeviceNet™ Digital Interface(472.3 kB, PDF) 275 Module with Nonlinear Analog Outputs and Process Control Relays Manual(1.2 MB, PDF) 275 Module with Linear Analog Output Manual(1.5 MB, PDF) 275 Module with RS-485 & Dual Process Relays (non-RoHS version) Manual(479.2 kB, PDF) 275 Module with RS-485 & Dual Process Relays (RoHS compliant) Manual(664.7 kB, PDF) 275 Module (models 275538 & 275553) with DeviceNet Digital Interface Manual (1.9 MB, PDF) 275 Module with Linear Analog Output Quick Start Guide(1.1 MB, PDF)
Device Description Files
275 Mini-Convectron® Module EDS File(7.3 kB, EDS) 275 Mini-Convectron® Modules with Display EDS File(13.4 kB, EDS) 275 Mini-Convectron® Modules without Display EDS File(0, EDS)
