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- Diameter: Ø 8mm
- Sensing Range Sn : 4mm
- Switching Output: PNP/NC
- Installation Type: Non-flush
- Diameter : Ø 6.5mm
- Sensing Range Sn : 4mm
- Switching Output : NPN/NO
- Installation Type : Non-flush
- Diameter : Ø 18mm
- Sensing Range Sn : 8mm
- Switching Output : NPN/NC
- Installation Type : Flush
- Diameter : Ø 8mm
- Sensing Range Sn : 0 mm ... 4 mm
- Output Function : Analog
- Installation Type : Quasi-flush
- Diameter: Ø 30mm
- Sensing Range Sn : 20mm
- Switching Output: PNP/Complementary
- Installation Type: Non-flush
- Sensing Range Sn: 5mm
- Switching Output: NPN/NO
- Installation Type: Non-flush
- Enclosure Rating: IP67
- Sensing Range Sn: 20mm
- Switching Output: PNP/NO
- Installation Type: Flush
- Enclosure Rating: IP67, IP68, IP69K
- Diameter: Ø 12mm
- Sensing Range Sn : 10mm
- Switching Output: PNP/NO
- Installation Type: Non-flush
- input specification type 1/3
- no bouncing due to mechanical switches thanks to 3 ms input filter
- tool-free connection by direct plug-in technology for solid wire conductors
- space-saving use in the control cabinet
- direct connection of multi-channel sensors in 1-wire connection technology in the smallest space
- increased packing density with 16 connection points in the housing of a 12 mm terminal bloc
WATSON MARLOW 300 SERIES CASED PUMP TECHMICAL SUMMERY:
Max. flow rate | 3000 ml/min |
Min. flow rate | 0.002 ml/min |
Speed control ratio | 133:1, 147:1, 200:1, 27:1, 300:1 |
Operating temperature range | 5 to 40 °C |
Operating temperature range | 40 to 104 °F |
Drive standards | CE, cETLus |
Drive ingress rating | IP31 |
Drive power supply | 1ph, 100-120 V, 220-240 V 50/60 Hz, 100 VA |
Compatible tubing bore size | 0.13, 0.19, 0.25, 0.38, 0.5, 0.63, 0.76, 0.8, 0.88, 1.02, 1.14, 1.29, 1.42, 1.52, 1.6, 1.65, 1.85, 2.05, 2.29, 2.54, 2.79, 3.2, 4.8, 6.4, 8 mm |
Standard Pressure Transmitters
The pressure transmitters of the 21Y series are incredibly robust to environmental
impacts since they lack an internal seal and have a high insulation voltage of 300 VDC.
An intricate compensation circuit allows for the specification of a small total error band.
Electrical connections and pressure connections come in a variety of options.
SIMILAR SERIES:-
- Series 21PY.
- Series 21C.
- Series 23SY.
- Series 25Y.
- Housing: Standard design.
- Sensing range Sn: 6 mm.
- Installation type: Quasi-flush.
- Electrical wiring: DC 3-wire.
- Switching output: PNP.
- Output function: NO.
- Connection type: Male connector M12, 4-pin.

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