Collection:Bürkert flow transmitter and switch electronics for S030 sensor fittings

Transmitter electronics are the electronics half of an inline paddle wheel flow meter. The module fits onto an S030 fitting, picks up the paddle wheel inside it, and turns the signal into a flow reading and an output. On its own a transmitter does not measure flow, so combine each one with an S030 fitting for a complete meter. The three models differ by what they show and send:

• SE30: sends a pulse signal to a PLC, counter, or Bürkert controller. No display. The basic choice.
• SE32: has a display, plus a 4 to 20 mA output, switch outputs (relay or transistor), or both, depending on the version. It shows the flow, sends it to a control system, and switches a pump, valve, or alarm at a set point.
• SE35: has a display with two totalizers and a 4 to 20 mA output. It is also available as a batch controller for dosing set amounts, or as a battery unit that shows and totals the flow with no output.

The remote Bürkert 8025 transmitters also belong here. They are signal and display units with no sensor of their own, so they do not measure flow on their own. A complete remote system is three parts: the transmitter, a separate flow sensor, and that sensor's fitting. "Remote" means the electronics are mounted away from the sensor, on a wall or in a panel, and wired by cable; it does not mean wireless.

• Universal transmitter: works with Bürkert 8020, 8030 (SE30 with S030), 8030HT, 8031, 8041, 8070, 8071, 8077, and SE30 with S077, and with third-party sensors that have a compatible frequency output.
• Low Power transmitter: works only with the Bürkert Low-Power sensors (8020, 8030, and SE30 with S077).
• Remote batch controller: the same remote electronics with dosing logic that opens and closes a valve to dose a set amount.

The fitting depends on the sensor chosen: an insertion sensor uses an S020 insertion fitting; an inline sensor (SE30 with S030, or SE30 with S077) uses an S030 or S077 fitting.

Choosing a transmitter

Work from what the meter has to do. A flow signal to a PLC or counter calls for the SE30. A local reading with a 4 to 20 mA output and set-point switching calls for the SE32. Running totals or dosing call for the SE35. All three use the same S030 fitting, so the fitting can remain in the pipe if the transmitter is later changed.

Frequently asked questions

Do these transmitters work without a fitting?

No. The paddle wheel is inside an S030 fitting, and the transmitter is only the electronics that pick it up. Combine a transmitter with an S030 fitting for a complete meter.

How do I pick between the SE30, SE32, and SE35?

By what the meter has to do. The SE30 sends a pulse and has no display. The SE32 shows the flow, sends a 4 to 20 mA signal, and switches a contact at a set point. The SE35 adds two totalizers and a batch-controller version for dosing. Choose the version that matches the job.

Is the S030 a sensor?

No. The S030 is a fitting that holds a paddle wheel; the sensor that reads it is the SE30. Together the SE30 and S030 make a Type 8030 flow sensor. A remote 8025 transmitter needs a flow sensor like this plus its fitting, not a fitting on its own.