深圳市正壹自動化技術(shù)有限公司代理銷售德國進口寶帝流量控制變送器等全系列產(chǎn)品

Flow sensor for continuous low-flow
measurement and batch control

• Cost attractive solution for low-flow rates and solid-free liquids
• Wetted parts made of ECTFE (Halar®), Saphir,
COREPOINT™, FKM or EPDM for use in aggressive liquids
• 3-wire system with paddle-wheel and Hall sensor up to 80 °C, 6 bar
• Frequency output proportional to the flow rate, PLC-compatible

The compact low-flow sensor Type 8031 with
paddle-wheel and Hall sensor is specially designed
for use in aggressive and solid-free liquids.
The particular cost attractive measuring principle
is based on a local flow velocity measurement.
The sensor produces a flow proportional frequency
signal which can easily be transmitted
and processed.
We recommend here particularly the connection
to the Bürkert Universal transmitter Type 8025
(see separate data sheet).

General data
Materials
Housing, Paddle-wheel
Axis
Bearings
Magnets
Seal
POM or ECTFE (Halar®)
COREPOINT™ or sapphire
POM or Rubin
ECTFE (Halar®) encapsuled or blank
FKM, EPDM or FFKM
Electrical connections Cable, 1 m length (3 x 0.14 LiYY)
Process connection G1/4” or Tube spigot 8/6 or 9 mm
Measuring range 10 to 100 l/h (2.6 to 27 gph)
20 to 250 l/h (5.3 to 66 gph)
K-factor 10200 pulse/litre (range 10 to 100 l/h)
3400 pulse/litre (range 20 to 250 l/h)
Fluid temperature 0 to 80 °C
Fluid pressure max. 6 bar at 20 °C
Accuracy ± 2% o. FS*
Repeatability 0.8% o. FS*
Viscosity 1 to 10 cSt.
Electrical data
Power supply (V+) 5...24 V DC
Current consumption max. 11 mA at 24 V DC
Output push-pull (complementary output) between V+ (white wire) and
signal (green wire) or between GND (brown wire) and signal
(green wire)
Frequency 0 to 300 Hz
Environment
Ambient temperature 0 up to +80 °C
Storage temperature -10 up to +80 °C
Standards and approvals
Protection class IP65

Without mounting plate Frequency
push-pull
10 to 100 l/h Tube spigot 8/6 mm POM COREPOINT™ FKM 783 717
G 1/4” POM COREPOINT™ FKM 783 719
20 to 250 l/h Tube spigot 9 mm POM COREPOINT™ FKM 783 718
G 1/4” POM COREPOINT™ FKM 783 720
With mounting plate Frequency
push-pull
10 to 100 l/h G 1/4” ECTFE Sapphire FKM 783 721
G 1/4” ECTFE Sapphire EPDM 783 722
G 1/4” ECTFE Sapphire FFKM 783 723
20 to 250 l/h G 1/4” ECTFE Sapphire FKM 783 724
G 1/4” ECTFE Sapphire EPDM 783 725
G 1/4” ECTFE Sapphire FFKM 783 726
10 to 100 l/h G 1/4” ECTFE COREPOINT™ FKM 437 982
G 1/4” ECTFE COREPOINT™ EPDM 438 531
20 to 250 l/h G 1/4” ECTFE COREPOINT™ FKM 438 532
G 1/4” ECTFE COREPOINT™ EPDM 437 524