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EL-PRESS Digital Electronic Pressure Meter & Controller
Brand: BronkhorstThe EL-PRESS series electronic Pressure Meters and Controllers have a well-proven compact thru-flow design and are available in pressure ranges from psi: 0 to 5,802 (kPa: 0 to 40,000, bar: 0 to 400), both in absolute and relative (gauge) pressure.
A differential pressure transducer can also be supplied in the ranges of 2 to 100 mbar up to 0.3 to 15 bar. The pressure controller performs with high accuracy and repeatability and should be specified for forward or backward pressure control.
Todays EL-PRESS series are equipped with a diaphragm type piezoresistive pressure sensor and a digital pc-board as standard and offer high accuracy, stability and reliability.
The basic digital pc-board contains all of the general functions needed for measurement and control. In addition to the standard RS232 output, the instruments also offer Analog I/O. As an option, an integrated inter-face board provides DeviceNet, PROFIBUS DP, Modbus, EtherCAT, PROFINET or FLOW-BUS protocols.
The latter is a fieldbus based RS485, specifically designed by Bronkhorst for their mass flow and pressure metering and control solutions.
Features- High accuracy and repeatability
- High pressure capability up to 400 bar
- Stable control even at varying process volumes
- Optional metal sealed and downported constructions
- Analog I/O signals: 0-5(10) V / 0(4)-20 mA
- Digital communication: RS232, DeviceNet, PROFIBUS DP, Modbus-RTU/ASCII, EtherCAT, PROFINET or FLOW-BUS
Specifications
Brand
Accuracy
- ± 0.5 % of Full Scale
Applications
- Autoclave
- Gas & Liquid Chromatography
- Protective Gas Pressure Control in Extrusion Moulding Processes
- Reactors Pressure Control
- Semiconductor Processing
- Vapour Pressure Control in MOCVD Processes
Approvals & Certifications
- ISO 9001, 14001
Communication
- DeviceNet: Add 48 mA at 24 V
- EtherCAT: Add 66 mA at 15 V or 41 mA at 24 V
- FLOW-BUS
- Modbus ASCII/RTU
- PROFIBUS DP: Add 53 mA at 15 V or 30 mA at 24 V
- PROFINET: Add 77 mA at 15 V or 48 mA at 24 V
- RS-232
Consumption
- Maximum
Electrical Connectors
- Analog / RS-232 / PROFIBUS DP Power: 9-Pin D-Connector Male
- DeviceNet: 5-Pin M12 Male
- FLOW-BUS/Modbus-RTU/ASCII: RJ45 Modular Jack, EtherCAT/PROFINET: 2* RJ45 Modular Jack (In/Out)
- PROFIBUS DP Bus: 9-Pin D-Connector Female
Environmental Protection
- IP40 (Ingress Protection)
Operating Temperature
- -10° to 70° C (14° to 158° F)
Output
- 0-10 Vdc
- 0-20 mA Sourcing
- 0-5 Vdc
- 4-20 mA Sourcing
Power Supply
- 15-24 Vdc
Pressure Range
- psi: 0 to 5,802 (kPa: 0 to 40,000, bar: 0 to 400) - Electronic Pressure Transducer
- psi: 0.07 to 1.45 (kPa: 0.05 to 10, bar: 5 to 100) - Electronic Pressure Controller
Repeatability
- ≤ 0.1 % of Reading
Response Time
- 2 µs
Seat / Seal Material
- Seals: EPDM
- Seals: Kalrez (FFKM)
- Seals: Viton
Sensitivity
- 0.1 % of Full Scale/°C
- Less than psi: 0.08 (kPa: 0.6, Mbar: 6)
Stability
- Control N₂: ≤ ± 0.05 % of Full Scale
Tube Connection
- 1/4” O.D. Tube
- 1/8” O.D. Tube
Wetted Materials
- 316L Stainless Steel
