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P841 · P842 · P843
Pressure switch
P840

P841 · P842 · P843

Ultra high purity pressure switch, 316L electropolished, 50 mm. Three alarm configurations in one ordering table: P841 single high alarm, P842 high and low alarm, P843 single low alarm. Switch point accuracy ±2.0% FS, 28 V AC/DC, 0.5 A.

Nominal diameter
50 mm
Switch point accuracy
±2.0% of full scale
Scale range
0 ~ 28 MPa
Working pressure
Steady: 75% FS · Fluctuating: 67% FS

Materials

Nominal diameter50 mm
Switch point accuracy±2.0% of full scale
Scale range0 ~ 28 MPa
Working pressureSteady: 75% FS · Fluctuating: 67% FS
Working temperatureAmbient: -20 ~ 65°C · Fluid: max. 100°C
Temperature effectapprox. ±0.4% FS per 10°C from 20°C
Process connection316L SS electropolished, Ra≤0.25 µm
Element316L SS — C-type bourdon <6 MPa · helical ≥6 MPa
Case304SS electropolished, with pressure relief
Electrical connection26 AWG, PVC, 6 feet (2 m)
Max. switching current0.5 amps AC/DC noninductive load
Max. power10 W/DC · 12 VA/AC
Max. switching voltage28 V AC/DC
Helium leak rateless than 10⁻⁹ mbar·ℓ/sec

Applications & Documents

Ordering

Configure your order

Select the variables exactly as they appear in the manufacturer datasheet. The full part number is assembled automatically.

1

Base model

single select · 3 values
2

Nominal Diameter

single select · 1 values
3

Type of Mounting

single select · 2 values
4

Accuracy

single select · 1 values
5

Connection Type

single select · 3 values
6

Unit

single select · 2 values
7

Range

single select · 33 values
8

Pressure Connection Material

single select · 2 values
Order part number
WIS-P84

Select variables

1
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