Bronkhorst

Which supply voltage and I/O signals are available for Bronkhorst® instruments?

Bronkhorst offers a wide variety of possibilities for electrical hook-up and communication. As a standard, most mass flow and pressure meters & controllers can be fed with 15 to 24 Vdc. By exception, some models are only suited for +24 Vdc.

The options for analog input/output are 0-5 Vdc, 0-10 Vdc, 0-20 mA and 4-20 mA (other on request).

Digital communication of most product lines are: RS232, PROFIBUS DP, DeviceNet™, Modbus-RTU/ASCII, EtherCAT®, PROFINET, CANopen, Modbus TCP, EtherNet/IP, Powerlink and FLOW-BUS (Bronkhorst® fieldbus).

Bronkhorst Fieldbus Options

Customized I/O configurations

Besides the obvious I/O-options for measured and setpoint values via analog signals, RS232 or fieldbus communication, various Bronkhorst series feature a programmable pin (pin 5 of DB9-connector, pin 5 of M12 connector or pin 2 of M8 connector) for customized I/O configurations. This functionality can be used for advanced operations such as digital frequency/pulse output, alarm output/reset, processing an external setpoint signal, valve purge/close and analog valve output. Some options are specified in the model number identification, however, numerous other settings can be programmed on request.

Customized I/O configurations options

000

Disabled, 0 Vdc (default)

A1V

0…10 Vdc output, controller

B1V

4…20 mA output, controller

B2V

3.8-20.8 mA output (TEIP 11/Badger), controller

C3A

Digital output, min/max alarm

C4A

Digital output, counter limit reached

C5S

Digital output, enabled by setpoint (for Shut-off valve)

C0I

Digital output, high/low switch via remote parameter

D9E

Digital frequency output, measure

F9B

Digital pulse output, batch counter

H1P 4…20 mA input, external sensor

I3C

Digital input, controller mode valve close

I8C

Digital input, controller mode valve purge

I1R

Digital input, reset counter

I2R

Digital input, reset alarm


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