Page 297 - Bürkert

Flowmeter for continuous flow measurement

8011

• Economic integration in pipe systems
without any additional piping
• Magnetic measuring principle (paddle
wheel with hall sensor)
• Output: transistor output (frequency
pulse signal)

The paddle wheel flowmeter for continuous flow measurement is espe- Envelope Dimensions [mm] (see datasheet for details)
cially designed for use in neutral, slightly aggressive, solid free liquids.
Type 8011 consists of a fitting (S012) and an electronic module (SE11) DN25
connected together with screws. The Bürkert designed fitting system
P
ensures simple installation into all pipes from DN06 to DN65. It can also
be installed in fluid block systems.
Type 8011 produces a frequency pulse signal, proportional to the flow
rate, which can be processed by a Bürkert remote transmitter/controller.

Type 8011 is available in two versions: L
• with one pulse output: transistor NPN
• with two pulse outputs: transistor NPN and PNP. A

Technical Data DN P A D L D
[mm] [mm] [mm] [inch] [mm]
General data
25 55.2 104.0 G 1 23.5
Compatibility with fittings S012 NPT 1 18.0
Rc 1 18.0
Materials
Housing / Seal PPS / EPDM
Fixed connector M12, cable gland PA
1 meter cable PVC
Wetted parts materials Technical Data (continued)
Fitting Brass, stainless steel 1.4404/316L,
PVC, PP Electrical data
Paddle wheel / Holder PVDF blue / PVDF Operating voltage (V+)
Axis and bearing / Seal Ceramics (AL O ) / FKM (EPDM option) One pulse output version 4.5 - 24 V DC, filtered and regulated
2 3 Two pulse outputs version 6 - 36 V DC, filtered and regulated
Electrical connection Fixed connector 5-pin M12 (or with 1 m
cable, on request) Current consumption < 5 mA (without load)
Connection cable 1.5 mm max. cross-section Reversed polarity of DC Protected
2
Complete device data (fitting + electronic module) Voltage peak Protected
Short circuit Protected for transistor output
Pipe diameter DN06 to DN50 (DN65 on request)
Output
Measuring range 0.3 to 10 m/s One pulse output version Transistor NPN open collector, max. 20 mA,
Measuring element Magnetic hall sensor NPN output: 0.2 - 24 V DC, frequency up to
300 Hz (Frequency [Hz] = K factor [pulse/litre]
Medium temperature with x flow rate [l/s])
PVC fitting 0 °C to +60 °C
PP fitting 0 °C to +80 °C Two pulse outputs version Transistor NPN and PNP open collector, max.
700 mA,
Stainless steel, brass fitting -15 °C to +100 °C (if T°ambient ≤ 45 °C) or NPN output: 0.2 - 36 V DC,
-15 °C to +90 °C (if 45 °C ≤ T°ambient ≤ 60 °C) PNP output: operating voltage, frequency up to
Fluid pressure max. PN10 (with plastic fitting) 300 Hz (Frequency [Hz] = K factor [pulse/litre]
PN16 (with metal fitting) x flow rate [l/s]
Viscosity / Pollution Max. 300 cSt. /max. 1% (size of particles
0.5 mm max.)
Accuracy with standard K-factor
±(0.5% of FS.* + 2.5% of Reading) 1) * FS. = Full scale (10 m/s)
Linearity ±0.5% of FS.* (at 10 m/s) 1) Under reference conditions i.e. measuring fluid = water, ambient and water
temperature = 20 °C, applying the minimum inlet and outlet pipe straights,
Repeatability ±0.4% of Reading 1) matched inside pipe dimensions.

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