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
*
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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