IN-PRESS P-5X2CI+F-0XXAI (P1-Control)

Industrial Style Back Pressure Controller

  • Back pressure control (controls upstream pressure "P1")
  • For absolute or gauge pressure
  • High accuracy and repeatability
  • Well proven, compact thru-flow design
  • Rugged, weatherproof housing (IP65, dust and waterproof)
  • Analog, RS232 and fieldbus communication
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IN-PRESSP-5X2CI+F-0XXAI (P1-Control)

Industrial Style Forward Pressure Controllers

Bronkhorst® models P-502CI through P-532CI Electonic Pressure Transducers (EPTs) can be combined with control valves for precise measurement and control of pressure ranges between 2…100 mbar and 8…400 bar absolute or gauge. The standard direct acting valves (F-001AI/F-011AI) are normally closed, have a pressure capability up to 100 bar and are available for Kv-values up to 6.6 x 10-6. Normally opened valves can also be supplied. For pressure control in combination with high flow rates, Bronkhorst has pilot operated valves models F-002AI and F-003AI/F-003BI with Kv-values up to 6.0 ! The so-called Vary-P valve F-033 that can cope with 400 bar delta-P. And finally, our bellows valve F-004 can be used for applications with very low differential pressure.

All combinations of IN-PRESS pressure meters with control valves are of rugged design (IP65) for use in industrial environments or even Zone 2 hazardous areas, with optional ATEX Cat. 3 approval.

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 DeviceNet™, PROFIBUS DP, PROFINET, Modbus or FLOW-BUS protocols.

Technical specifications

Measurement / control system
Absolute pressure sensors Code: 350A  -  Ranges (FS): 100 ... 350 mbara  -  P-max: 1,0 bara
Code: 1K1A  -  Ranges (FS): 0,35 ... 1,1 bara  -  P-max: 3,1 bara
Code: 6K0A  -  Ranges (FS): 1,1 ... 6 bara  -  P-max: 10,5 bara
Code: 21KA  -  Ranges (FS): 6 ... 21 bara  -  P-max: 62 bara
Code: M10A  -  Ranges (FS): 20 ... 100 bara  -  P-max: 200 bara
Code: M40A  -  Ranges (FS): 100 ... 400 bara  -  P-max: 500 bara
Relative pressure sensors Code: 100R  -  Ranges (FS): 35 ... 100 mbarg  -  P-max: 0,7 barg
Code: 350R  -  Ranges (FS): 100 ... 350 mbarg  -  P-max: 1,0 barg
Code: 1k1R  -  Ranges (FS): 0,35 ... 1,1 barg  -  P-max: 3,1 barg
Code: 6K0R  -  Ranges (FS): 1,1 ... 6 barg  -  P-max: 10,5 barg
Code: 21KR  -  Ranges (FS): 6 ... 21 barg  -  P-max: 62 barg
Accuracy (incl. linearity and hysteresis) ±0,5% FS
Repeatability < 0,1% Rd
Pressure rangeability 1 : 5
Operating temperature -10…+70°C;
for ATEX cat. 3 0…50°C
Temperature sensitivity 0,1% FS/°C
Leak integrity, outboard tested < 2 x 10-9 mbar l/s He
Attitude sensitivity max. error at 90° off horizontal < 0,3 mbar
Warm-up time negligible
Mechanical parts
Material (wetted parts) stainless steel 316L or comparable
Process connections compression type or face seal couplings
Seals standard: Viton®; options: EPDM, Kalrez® (FFKM)
Ingress protection (housing) IP65
Electrical properties
Power supply +15…24 Vdc
Max. power consumption Supply
15 V
24 V
at voltage I/O
223 mA
150 mA
at current I/O
223 mA
150 mA
PROFIBUS DP add 53 mA (15 V supply) or 30 mA (24 V supply)
DeviceNet™ add 48 mA (24 V supply)
Analog output/command 0...5 (10) Vdc or 0 (4)…20 mA (sourcing output)
Digital communication standard: RS232;
options: PROFIBUS DP, PROFINET, DeviceNet™, Modbus RTU or ASCII, FLOW-BUS
Electrical connection
Analog/RS232 8 DIN (male);
PROFIBUS DP bus: 5-pin M12 (female);
power: 8 DIN (male);
PROFINET bus: 2 x 5-pin M12 (female) (in/out);
power: 8 DIN (male);
Devicenet™ 5-pin M12 (male);
FLOW-BUS/Modbus-RTU/ASCII 5-pin M12 (male)

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 productpage on our website


IN-PRESS brochure

General manual digital instruments
Operating instructions digital instruments

Hook-up diagrams
Analog IO - RS232
Optional Bus and IO Configurations

Dimensional drawing
P-502CI_P-512CI with F-001AI_F-011AI

Bronkhorst High-Tech B.V.

Nijverheidsstraat 1A
NL-7261 AK Ruurlo (NL)
Tel. +31 573 45 88 00
[email protected]

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