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).

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