2281 Multipoint Switch
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- Compact housing
- PP or PVDF sensor body
- 2 wire compact sensor
The Multipoint Switch is based on the conductivity principle and can be applied to liquids with conductivity higher than 10 μS/cm.
The probes has to be immersed into the tank for detecting the level. The probe length should be in accordance with the level to be detected. Filling liquid in the tank will change the electrical conductivity between the reference probe and probes. The established connection will be converted and will activate a relay providing for output.
Features of the Signet 2281 Multipoint Switch include:
- Conductive Principle
- Relay Output: 1 or 2 SPDT
- Power Supply: 24V… 240V AC or DC 24V AC/DC
- voltage rating 250V AC1, 24V DC
- Probes: 2,3,4 + 1 Reference
- Electrode Material: Stainless Steel 1.4571
- Electrode Length: 0.5, 1.0, 1.5 m (max. 3 m)
- Electrode Separator, Material PP (KLP-201)
Typical Applications
- Pump control
- Chemicals
- Potable water
- Cooling water
Specs
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Product Specification
The Multipoint Switch is based on the conductivity principle and can be applied to liquids with conductivity higher than 10 μS/cm.
Specification Detail of the Signet 2281 Multipoint Switch:
Probes
optional 2,3 or 4
Enclosure Material
PBT
Ingress Protection
IP65, NEMA 6P / IP20, NEMA 1
Accuracy
± (0.2 % of measured distance plus 0.05 % of
range)
Operating Temp Range
max. +80 °C (176 °F)
Pressure
0.1 MPa (1 bar) 14.5 psi
Output
2-wire 4–20 mA, max. 600 Ohm; HART interface, Rt >/= 250 Ohm
Standards Lengths Available
0.5 m (19.69 in.), 1.0 m (39.37 in.),
1.5 m (59.06 in.) (72 in., 108 in. on request)
Resolution
<2 m (6.6 ft): 1 mm (0.04 in.), 2 to 4 m (6.6 to 13.1 ft): 2 mm (0.08 in.)
Total Beam Angle
5- 6°
Supply Voltage
DC 12 to 36 V
Process Connection
1½”
