902B Absolute Piezo Vacuum Pressure Transducers
Overview
The 902B Piezo transducer combines the pressure measurement technology of a MEMS-based Piezo sensor with a metal sealed stainless steel 316 diaphragm and integrated electronics. The 902B provides economical, absolute pressure measurement that is independent of gas type.
- Low cost transducer with 0.1 to 1000 Torr measurement range
- Solid state Piezo sensor resistant to damage from air inrush and vibrations
- robust design and stainless steel construction for harsh processes
- Gas independent pressure measurement for accurate pressure measurement
- Compact system design with integrated electronics and sensor in one unit
- Mountable in any orientation for ease of installation
Products
| Compare | Description | Drawings, CAD & Specs | Availability | Price | |||
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902B-1E0V0 |
14 Weeks
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$644.00 |
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902B-3E0V0 |
14 Weeks
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$667.00 |
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902B-4E0V0 |
14 Weeks
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$684.00 |
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902B-5E0V0 |
14 Weeks
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$702.00 |
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902B-8E0V0 |
14 Weeks
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$702.00 |
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902B-11010 | $481.00 |
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902B-11012 | $644.00 |
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902B-11014 | $684.00 |
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902B-11020 | $453.00 |
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902B-11024 | $656.00 |
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902B-11032 | $667.00 |
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902B-11030 | $504.00 |
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902B-11054 | $731.00 |
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902B-11034 | $708.00 |
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902B-12014 | $684.00 |
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902B-12010 | $481.00 |
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902B-12024 | $656.00 |
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902B-12020 | $453.00 |
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902B-12030 | $504.00 |
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902B-12034 | $708.00 |
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902B-31014 | $702.00 |
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902B-31010 | $499.00 |
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902B-31020 | $471.00 |
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902B-31024 | $672.00 |
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902B-31030 | $528.00 |
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902B-32010 | $499.00 |
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902B-32014 | $702.00 |
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902B-32020 | $473.00 |
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902B-32024 | $672.00 |
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902B-32030 | $528.00 |
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902B-41010 | $517.00 |
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902B-41014 | $719.00 |
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902B-41020 | $494.00 |
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902B-41024 | $696.00 |
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902B-41030 | $545.00 |
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902B-41034 | $748.00 |
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902B-41050 | $569.00 |
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902B-42010 | $517.00 |
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902B-42014 | $719.00 |
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902B-42020 | $481.00 |
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902B-42024 | $696.00 |
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902B-42030 | $545.00 |
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902B-42034 | $748.00 |
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902B-51010 | $540.00 |
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902B-51014 | $742.00 |
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902B-51020 | $511.00 |
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902B-51024 | $696.00 |
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902B-51030 | $604.00 |
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902B-51034 | $742.00 |
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902B-52010 |
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902B-52014 | $719.00 |
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902B-52020 |
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902B-52030 | $563.00 |
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902B-52034 | $765.00 |
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Configuration Options
The following options are available for 902B Mini-Convectron® Vacuum Pressure Transducers
Ordering Code Example: 902B-1E0V0
| Configuration Option | Option Code |
|---|---|
| 902B Vacuum Pressure Transducer | 902B |
Fitting | |
| NW16 ISO-KF | 1 |
| 0.125 in. NPT male | 3 |
| 4 VCR female | 4 |
| 8 VCR female | 5 |
| NW16 ISO-KF Extended | 8 |
Communication | |
| RS232/Analog | 1 |
| RS485/Analog | 2 |
| EtherCAT/Analog | E |
Analog Output | |
| 0-10 VDC (Linear 10 mV/Torr) | 0 |
| 0-5 VDC (Linear 5 mV/Torr) | 1 |
Connector/Relays | |
| D-Sub 9 pin male/One Relay (backward compatible with 1st generation 902 transducer)1 | 1 |
| D-Sub 15 pin HD male/No Relay | 2 |
| D-Sub 15 pin HD male/Three Relays2 | 3 |
| D-Sub 15 pin HD male/One Relay (EtherCAT only) | V |
Enclosure/Sealing/Display | |
| Standard Enclosure, Viton Sealing, No Display | 0 |
| Standard Enclosure, Viton Sealing, Display (not available with EtherCAT) | 4 |
Notes:
1Backward compatible with 1st generation 902 Piezo Transducer
2Not available with EtherCAT
Specifications
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Digital CommunicationRS485, RS232 or EtherCAT
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SensorStainless steel enclosed Piezo (Absolute Pressure)
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RelaysThree relays SPDT
EtherCAT 1 relay SPDT
(Optional) -
Installation OrientationAny
-
Measurement Range0.1-1000 Torr
-
Set Point Range1-1000 Torr
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Operating Temperature0-40°C (32-104°F)
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Maximum Bakeout Temperature100°C (non-operating)
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Analog Output0-10 VDC, 100 Ω maximum output impedance, linear or logarithmic
(Absolute Pressure) -
Analog Output Resolution16 bit
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Relay Contact Rating1 A @ 30 VAC/VDC resistive
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Relay Response100 ms maximum
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Power Requirements9 to 30 VDC < 1.2 watt maximum
EtherCAT 24V ±15% -
Accuracy100-1000 Torr ±1% of Reading
10-100 Torr ±5% of Reading -
Repeatability100-1000 Torr ±0.3% of Reading
10-100 Torr ±1% of Reading -
Overpressure Limit1500 Torr
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Internal Volume1.023 cc (KF16)
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Exposed Materials316 Stainless Steel
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Electronic Casing and Flange304 Stainless Steel
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Weight0.37 lb (170 g) with KF16 flange
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ComplianceCE, ETG 5003.1, ETG 5003.2, ETG 5003.2080
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Digital Output Resolution0.1 Torr
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Zero Temperature Coefficient0.01% of Full Scale/°C
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Span Temperature Coefficient0.02% of Reading/°C
Features
Piezo Absolute Pressure Transducer
The Series 902B Piezo transducer is based on a silicon piezo resistive pressure sensor that measures absolute vacuum pressure with an accuracy of ±1% of Reading (from 100-1000 Torr). The sensor is robust and resistant to mechanical vibration and g-forces. Furthermore, the sensor technology makes the transducer gas type independent. With only stainless steel 316 exposed to the process gas, the transducer can be used in many demanding applications.
Digital and Analog Interfaces
The 902B is available with EtherCAT, RS232 or RS485 digital communication interface for setup of transducer parameters and to provide real time pressure measurement. In addition, the 902B has a 16 bit analog pressure output that can be interfaced to external analog equipment for pressure readout or close loop control. The standard output is linear from 0-10 VDC, but other outputs are also available.
Process Control Relays
The 902B has up to three mechanical relays which can be used for process control, for example interlocking isolation valves and vacuum pumps. The SPDT relays include both normally open and close contacts and can be set to energize above or below a set point trip value. Many applications require continuous surveillance of system pressure and warning of atypical pressure levels. The flexible relay options of the 902B can provide warning to external safety logic in cases of abnormal pressure and loss of power
Compact Design
The compact design of the 902B significantly reduces the amount of space occupied by the transducer. This is particularly appealing to system designers and allows design of compact systems or equipment. The 902B is also available in a 9 pin version, offering backward compatibility with the first generation 902.
Optional Integrated Touch-screen Display
The optional integrated touch-screen display is user configurable; the user can change pressure units, orientation and has access to set point parameters as well as gas type. The display also indicates the status of the available set point relays. Displayed pressure reading from individual sensors or combined reading can be seen from >5 meters away on the high contrast display.
PDR900 Power Supply & Display
The PDR900 power supply and readout unit is a stand alone, single channel controller for use with the Series 900 digital vacuum transducers. It can be used as a stand-alone power supply readout unit or as a tool for configuration, calibration and diagnostics of system integrated transducers in OEM applications.
Resources
Literature
- 902B Absolute Piezo Vacuum Transducer (279.9 kB, PDF)
- Vacuum Measurement Product Guide (711.5 kB, PDF)
Manuals
- 902B Transducer Manual (100017633) (2.3 MB, PDF)
- 900 Series Vacuum Transducer USB Adapter Manual (129.6 kB, PDF)
- 900 Series EtherCAT Communication Protocol Manual (20003335) (925.8 kB, PDF)
- 902B ESI File (97.9 kB, XML)
- 902B Vacuum Transducer Pin-outs (636.9 kB, PDF)
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