Sauermann Si-DPMS Manual

Sauermann Ikke kategoriseret Si-DPMS

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Side 1/4

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

Media Air, non-combustible and non-aggressive gases

Maximum pressure 10 kPa

Voltage 250 V / 1.5 A (0.4 A)

Mounting Vertical

Protection IP54 (with cover), IP00 (without cover)

Operating temperature -40 °C to 85 °C

Relay type SPDT

Electrical rating

Resistance: initial: < 50 mΩ

Current: 1.5 A (0.4 A) / 250 V

Contact terminals 6.3 mm x 0.8 mm blade or screw terminal

Connection Ø 6.0 mm for tube connection

Certication CE

Dimensions (mm)

Model

Measuring

range (Pa)*

High point

tolerance

Switching

differential (Pa)

Tolerance of switching

differential (Pa)

Max Pressure

(Pa)

Si-DPMS-1 20 - 200 ±15% 10 ±5

10 000

Si-DPMS-2 50 - 500 ±15% 20 ±10

Si-DPMS-3 200 - 1000 ±15% 100 ±20

Si-DPMS-4 500 - 2500 ±15% 150 ±40

Si-DPMS-5 1000 - 5000 ±15% 250 ±70

Connection and mounting positions

• Mounting position:

Figure A: Recommended mounting position: vertical (factory calibration).

Figure B: Horizontal mounting position, electrical connections upward. Real switching points are 20 Pa higher beside the dial indica-

tions (position not recommended).

Figure C: Horizontal mounting position, electrical connections downward (position not recommended).

• Electrical connection:

Terminal 1: NC

Terminal 2: NO

Terminal 3: NO

Disconnect the device from any power supply before opening the cover.

The electrical connection presented above is a schematic view of an electrical break contact.

As long as the cut-off threshold is not exceeding, the terminal 3 remains connected to the terminal 1.

If the cut-off threshold is exceeded, the terminal 3 will then be connected to the terminal 2. The electrical contact will be therefore

established.

• Pressure connection:

Sauermann offers a wide range on pressure connectors that can be used for installing the differential pressure switches Si-DPMS:

- Quick coupler, Ref. KR 483.

- Connector for double-skinned wall, Ref. DP 447 and DP 339.

Removing the safety plastic cover and performing the electrical connection of this product poses a high risk of

electrocution if this device is connected to any power supply. Make sure that the device is not powered before

any manipulation.

• Place the device into its intended location within your installation. Use the provided screws to x its mounting support in the wall.

• Remove the safety plastic cover by unscrewing the xing screw.

• Connect the wires using the provided accessories, follow the electrical connection diagram below. The cable gland can be orientated

in a different angle, if needed.

• Adjust the switching point on the dial of the pressure switch, within the printed scale. Do not force the dial by excessively turning it.

• Put the safety plastic cover back again and x it with the screw.

• Connect the pressure tubes to the corresponding pressure ports.

Produkt Specifikationer

Mærke:	Sauermann
Kategori:	Ikke kategoriseret
Model:	Si-DPMS

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