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Si-DPMS

Differential Pressure Switches

USER MANUAL

Presentation

The differential air pressure switches with membrane are used for the control of air treatment system installations. They allow, without

supply, to establish a switching contact during a cut-off pressure exceeding. They can be mounted in parallel with a manometer.

They allow to control systems working under or over pressure, fans or lter.

Description

Before the commissioning of the pressure switch, please read carefully this user manual.

*

Pressure values referred to vertical installation. If the device is installed horizontally, these values increase by 20 Pa.

The differential pressure switches have a round shape and two connections of Ø 6.2 mm (for hoses, of Ø 5 x 8 mm for example).

They are supplied with the needed installation accessories.

General features

MediaAir, non-combustible and non-aggressive gases

Maximum pressure10 kPa

Voltage250 V / 1.5 A (0.4 A)

Mounting Vertical

ProtectionIP54 (with cover), IP00 (without cover)

Operating temperature-40 °C to 85 °C

Relay typeSPDT

Electrical rating

Resistance: initial: < 50 mΩ

Current: 1.5 A (0.4 A) / 250 V

Contact terminals6.3 mm x 0.8 mm blade or screw terminal

ConnectionØ 6.0 mm for tube connection

CerticationCE

Dimensions (mm)

Model

Measuring

range (Pa)*

High point

tolerance

Switching

differential (Pa)

Tolerance of switching

differential (Pa)

Max Pressure

(Pa)

Si-DPMS-120 - 200±15%10±5

10 000

Si-DPMS-250 - 500±15%20±10

Si-DPMS-3200 - 1000±15%100±20

Si-DPMS-4500 - 2500±15%150±40

Si-DPMS-51000 - 5000±15%250±70

Product specificaties