Burkert 556289 Type 8012 flowmeter with paddle wheel is designed for continuous flow measurement and is available as a magnetic or an optical variant. The flowmeter in its magnetic variant is specially designed for use with neutral or mildly aggressive, particle-free liquids. The optical variant is only intended for use with infrared-transmissive liquids. It allows cost-effective integration in pipe systems without any additional pipelines.

Type 8012 consists of a fitting (Type S012) and an electronic module (Type SE12) that are screwed together. Bürkert’s proprietary fitting system ensures simple installation into all pipelines from DN 06 to DN 65. Depending on the particular electronic module variant, Type 8012 is either supplied with one pulse output or with a pulse output and a 4…20 mA current output signal. The pulse output generates a configurable frequency proportional to the volume flow rate, or can be used as a switching output.

General Technical Data

Property	Description
Pipe diameter	DN 06...DN 50 (DN 65 on request)
Measuring element	Optical, infra-red (or magnetic paddle wheel)
Measuring range	Flow rate: 0.5...1000 l/min (0.13...265 gpm) Flow velocity: 0.3...10 m/s
Measurement deviation	Teach-in: ± 1% of the measured value Standard K factor: ± 2.5% of the measured value
Linearity	± 0.5% of full scale
Repeatability	± 0.4% of the measured value
Operating voltage	12...36 V DC ± 10%, filtered and regulated
Current consumption	<60 mA (at 12 V DC for current variant, without load)
Output	Transistor: NPN (default) or PNP, open collector, 700 mA max. Current: 4...20 mA (3 wire), sinking (default)
Fluid temperature	PVC: 0...+60 °C PP: 0...+80 °C Stainless steel/Brass: -15...+100 °C (if T°ambient ≤ +45 °C)
Fluid pressure	Plastic: max. PN 10 (145 PSI) Metal: max. PN 16 (232 PSI)
Viscosity	Max. 300 cSt
Degree of protection	IP67 with device wired and M12 female connector mounted and tightened

Dimensions

Transmitter Type SE12 mounted in a fitting Type S012

DN	H (mm)
06	52.5
08	52.5
15	57.5
20	55.0
25	55.2
32	58.8
40	62.6
50	68.7

Performance Specifications

Pressure Temperature Diagram

WARNING

Take the fluid pressure / temperature dependency into account according to the nature of the material of the fitting used. Pressure and temperature ratings must be respected according to the selected fitting material.

Product Installation

Minimum straight distances upstream and downstream of the sensor must be observed. These stabilizing distances depend on the pipe’s design. Increasing these distances or installing a flow conditioner may be necessary to obtain the best accuracy.

Installation Notes

• The device can be installed in either horizontal or vertical pipes.
• The device has to be installed so that the paddle wheel axis is horizontal.
• The pipe always has to be filled with fluid at all times near the device.
• The pipe design must be such that no air bubbles or cavitation can form within the medium near the device at any time.

Product Operation and Assembly

The Type SE12 electronic module is equipped with two LED indicators. When the power is turned on, the green LED lights up and flashes proportionally to the paddle wheel rotation frequency. The lighting up of the red indicator LED indicates a malfunction of the device. When liquid flows into the pipe, the paddle wheel is rotated. The non-wetted permanent magnets inserted in the paddle wheel generate a measuring signal whose frequency is proportional to the flow velocity.

The device Type 8012 is made up of a fitting Type S012 and a transmitter Type SE12 equipped with a paddle wheel sensor. The drawing shows the assembly of a Type S012 fitting with an internal thread process connection and a Type SE12 transmitter.