Bronkhorst

IN-PRESS P-822CI

Process Pressure Controller, Industrial Style

  • Dual valve pressure control (inlet/relief)
  • For absolute or gauge pressure
  • High accuracy and repeatability
  • Rugged, weatherproof housing (IP65, dust and waterproof)
  • On-board PID controller for pressure control
  • Analog, RS232 and fieldbus communication
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IN-PRESSP-822CI

Process Pressure Controller, Industrial Style

Bronkhorst® model P-822CI Process Pressure Controllers (PPCs) are suited for precise pressure control with closed volumes, i.e. with one fluid connection. This PPC model is suited for pressure ranges between 5…100 bar and 10…200 bar absolute or gauge. The instrument comprises a diaphragm type piezo-resistive pressure sensor, a microprocessor based pc-board with signal and fieldbus conversion and a PID controller for pressure control by means of two integrated control valves. This dual valve construction is a compact, economical alternative to configurations where forward pressure controllers are combined with separate bleed ports and relief valves. It is considered as a great advantage that the relief valve does not vent to the atmosphere. Furthermore the system can be set for either fast or smooth controlled (de)pressurization. The IN-PRESS model is of rugged design (IP65) for use in industrial environments.

IN-PRESS series are equipped with a digital pc-board, offering high accuracy, excellent temperature stability and fast response. The main 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 on-board interface can be mounted to provide CANopen®, DeviceNet™, PROFIBUS DP, PROFINET, Modbus or FLOW-BUS protocols.


Technical specifications

Measurement / control system
Accuracy (incl. linearity and hysteresis)± 0,5 % FS
Repeatability< 0,25 % RD
Pressure rangeability1:20 (with flow range 1:50)
Response time (sensor)2 msec
Operating temperature-10... +70 °C
Temperature sensitivity0,1% FS/°C
Leak integrity, outboardtested < 2 x 10-9 mbar l/s He
Attitude sensitivitymax. error at 90° off horizontal < 0,3 mbar
Warm-up timenegligible
Mechanical parts
Material (wetted parts)stainless steel 316L or comparable
Process connectionscompression type or face seal couplings
Sealsstatic: Viton®; plungers: FKM
Ingress protectionIP65
Electrical properties
Power supply+15 24 Vdc
Max. power consumption15 Vdc: 290 mA at voltage I/O; 320 mA at current I/O;
24 Vdc: 200 mA at voltage I/O; 215 mA at current I/O
PROFIBUS DPadd 53 mA (15 V supply) or 30 mA (24 V supply)
CANopen® / DeviceNet™add 48 mA (24 V supply)
Analog output0...5 (10) Vdc or 0 (4)…20 mA (sourcing output)
Digital communicationstandard: RS232; options: CANopen®, DeviceNet™, PROFIBUS DP, PROFINET, Modbus or FLOW-BUS
Electrical connection
Analog/RS2328 DIN (male);
PROFIBUS DPbus: 5-pin M12 (female); power: 8 DIN (male);
CANopen® / DeviceNet™5-pin M12-connector (male);
FLOW-BUS/Modbus-RTU/ASCII5-pin M12 (male)
Control valve options
External actuator options to be connected to the controller
Ex-proof specifications
Approvals / certificates

Note: The measuring cell of the pressure sensore is separated from the external pressure by a thin, sensitive stainless steel diaphragm, and the sealed off cavity between diaphragm and cell is filled with oil. Since the standard oil filling is flammable, Bronkhorst advises to take precautions when oxygen or any other explosive fluid is used.

Technical specifications subject to change without notice.

For dimensional drawings and hook-up diagrams please visit the product page on our website

Downloads

Brochures
IN-PRESS PPC Datasheet

Manuals
General manual digital instruments
Operating instructions digital instruments

Hook-up diagrams
Analog IO - RS232
DeviceNet
FLOW-BUS
Modbus-RTU
PROFIBUS DP
PROFINET
CANopen
Optional Bus and IO Configurations

Dimensional drawing
P-802CI_P-812CI_P-822CI


Bronkhorst USA inc.

57 South Commerce Way
Suite 120
USA - Bethlehem, PA 18017 
Tel.  +1-610-866-6750
[email protected]

     
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