EL-PRESS
Digital Electronic Pressure Meters / Controllers

General

The EL-PRESS series digital electronic pressure transducers and controllers for gases and liquids have a well-proven compact thru-flow design. The instruments include a diaphragm type piezo-resistive pressure sensor for pressure measurement/control from:

lowest ranges 2 ... 100 mbar absolute, gauge or differential 
up to highest ranges 8 ... 400 bar absolute / gauge or 0,3 ... 15 bar dif.

The control valve design distinguishes itself from competitive designs in its truly modular construction and it can be field replaced or changed by the user without any adjustment. The standard valve is normally closed and is available up to Kv-values of 6.0. Normally opened valves can also be supplied.

"Multibus" Digital Pressure Meters/Controllers

Bronkhorst developed their digital instruments according to the flexible "multibus" concept, due to which the instruments can be equipped with on-board interface board with DeviceNet, PROFIBUS DP, Modbus or FLOW-BUS protocol. More information about digital "multibus" communication.

NEW: EL-PRESS P-800 Process Pressure Controller

  

The P-800 series is suited for precise pressure control inside closed compartments or systems, or for highly accurate control of dome-loaded pressure regulators. The instruments comprise 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. 

Pressure ranges from 17,5...350 mbar up to 10...200 bar

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 continuously vent (bleed) to the atmosphere..

For more information see: Datasheet of EL-PRESS Series P-800

  • Features
  • Applications
  • Ranges
  • Documentation

Features

  • Thru-flow design
  • Compact arrangement
  • Stable control, even at varying process volumes
  • High pressure capability up to 400 bar
  • Metal sealed and/or down-ported versions available
  • High accuracy and repeatability

Applications

  • Gas and liquid chromatography
  • Fermenter pressure control (Biotechnology)
  • Vapour pressure control in MOCVD processes (bubbler systems)
  • Protective gas pressure control in extrusion moulding processes

Models and ranges

Instrument / Model type  Lowest range Highest range 
Pressure transmitters
P-502C
P-512C
P-522C
P-532C

2 ... 100 mbar
1,28 ... 64 bar
2 ... 100 bar
4 ... 200 bar

1,28 ... 64 bar
2 ... 100 bar
4 ... 200 bar
8 ... 400 bar 
Differential pressure transmitters
P-506C

2 ... 100 mbar 

0,3 ... 15 bar 
Forward pressure controllers (P2-control)
P-602C / P-602CV
P-612C / P-612CV

5 ... 100 mbar
3,2 ... 64 bar 

3,2 ... 64 bar
5 ... 100 bar
Backward pressure controllers (P1-control)
P-702C / P-702CV
P-712C / P-712CV

20 ... 100 mbar
12,8 ... 64 bar 

12,8 ... 64 bar
20 ... 100 bar 
Process Pressure Controller (Dual Valve)
P-802CV
P-812CV
P-822CV

17,5 ... 350 mbar
3,2 ... 64 bar
5 ... 100 bar 

3,2 ... 64 bar
5 ... 100 bar
10 ... 200 bar 

High pressure control (up to 400 bar): use pressure transmitter with separate control valve.

Sensor codes, ranges and maximum pressure

(for sensors integrated in EL-PRESS instruments)

Sensor code Pressure ranges
(Full scale values;
intermediate ranges available) 
Max. pressure
Absolute pressure
350A
1K1A
6K0A
21KA
M10A
M40A

100 ... 350 mbara
0,35 ... 1,1 bara
1,1 ... 6 bara
6 ... 21 bara
20 ... 100 bara
100 ... 400 bara 

1,0 bara
3,1 bara
10,5 bara
62 bara
200 bara
500 bara
Relative pressure
350R
1K1R
6K0R
21KR

100 ... 350 mbarg
0,35 ... 1,1 barg
1,1 ... 6 barg
6 ... 21 barg

1,0 barg
3,1 barg
10,5 barg
62 barg
Differential pressure
300D
1K0D
4K0D
15KD

100 ... 300 mbard
0,3 ... 1 bard
1 ... 4 bard
4 ... 15 bard

2,5 bard
4 bard
7 bard
30 bard

Brochure

For more information see brochure "EL-PRESS Digital Electronic Pressure Meters and Controllers"

EL-PRESS P-702CV Pressure Controller EL-PRESS P-602CV Pressure Controller P-502C Pressure Meter P-506C Differential Pressure TransducerP-702CM Metal Sealed Pressure Controller P-802CV Process Pressure Controller.jpg
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