IN-PRESS
Industrial style Digital Pressure Meters / Controllers

General

The IN-PRESS series digital electronic pressure transducers and controllers for gases and liquids are equipped with a rugged, 'industrial style' (IP65) pc-board housing for use in industrial environments. The instruments have a well-proven compact thru-flow design and include a diaphragm type piezo-resistive pressure sensor for pressure measurement/control from:

lowest ranges 2 ... 100 mbar absolute or 0,7 ... 35 mbar gauge
up to highest ranges 8 ... 400 bar absolute or gauge

The pc-board of an IN-PRESS pressure meter features integrated, adaptable PID control for fast and smooth control of any electronically driven valve. The standard direct acting valve (F-001AI/F-011AI) is normally closed, has a pressure capability up to 100 bar and is available for Kv-values up to 6.6 x 10^-6. Normally opened valves can also be supplied. There is also a pilot operated valve for high flow rates (Kv-max 6.0 !!!), the so-called Vary-P valve that can cope with 400 bar delta-P and a bellows valve for applications with very low differential pressure. All these control valves are available with IP65 protected coils.

"Multibus" Digital Pressure Meters/Controllers

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

NEW: IN-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 IN-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
Classification IP65
High accuracy and repeatability

Applications

Process pressure control in food, pharma and (petro-)chemical industries
Fermenter pressure control (Biotechnology)
Fuel Cell technology
Protective gas pressure control in extrusion moulding processes

Models and ranges

Instrument / Model type	Lowest range	Highest range
Pressure transmitters P-502CI P-512CI P-522CI P-532CI	2 ... 100 mbara / 0,7 ... 35 mbarg 1,28 ... 64 bar 2 ... 100 bar 4 ... 200 bar	1,28 ... 64 bar 2 ... 100 bar 4 ... 200 bar 8 ... 400 bar
Forward pressure controllers P-502CI + F-001AI 1) P-512CI + F-011AI 1)	5 ... 100 mbara / 17,5 ... 35 mbarg 3,2 ... 64 bar	3,2 ... 64 bar 5 ... 100 bar
Backward pressure controllers P-502CI + F-001AI 1) P-512CI + F-011AI 1)	20 ... 100 mbara / 7 ... 35 mbarg 12,8 ... 64 bar	12,8 ... 64 bar 20 ... 100 bar
Process Pressure Controller (Dual Valve) P-802CI P-812CI P-822CI	17,5 ... 350 mbar 3,2 ... 64 bar 5 ... 100 bar	3,2 ... 64 bar 5 ... 100 bar 10 ... 200 bar

¹⁾ Standard direct acting control valve. For an overview of Bronkhorst High-Tech control valves for specific fields of application (high flow, high pressure, low differential pressure) see our control valves page.

Sensor codes, ranges and maximum pressure

(for sensors integrated in IN-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 100R 350R 1K1R 6K0R 21KR	35 ... 100 mbarg 100 ... 350 mbarg 0,35 ... 1,1 barg 1,1 ... 6 barg 6 ... 21 barg	0,7 barg 1,0 barg 3,1 barg 10,5 barg 62 barg
Differential pressure 300D 1K0D 4K0D 15KD	100 ... 200 mbard 0,2 ... 1 bard 1 ... 4 bard 4 ... 15 bard	2,5 bard 4 bard 7 bard 30 bard