EU declaration conformity
HVAC Potentiometer | OFF position | 5-24 VDC supply
Product description
Introducing the SDP-E0US-AT Potentiometer
The SDP-E0US-AT is a potentiometer designed for precision control of ventilation systems. It works with a wide range of devices, including EC fans, damper actuators, AC fan speed controllers, and frequency inverters.
Here's a summary of its key features:
Versatile Power Supply: It operates with a supply voltage from 5 to 24 VDC.
Variable Control: You can manually set a continuously variable output signal using the rotary knob.
OFF-Position: The knob can be turned counter-clockwise to a specific OFF position to disable the control signal.
Adjustable Range: Two internal trimmers allow you to fine-tune the high and low levels of the control signal, within a 0-100% range of the supply voltage.
Invertible Output: This unique feature gives you the flexibility to invert the control output signal, allowing you to change the direction of control (e.g., minimum to maximum or vice versa).
Durable Design: The device has a splash-proof enclosure and can be mounted in two ways: inset mounting (IP44) or surface mounting (IP54).
Documents
Additional specifications and description
What does this potentiometer control?
For some applications, it is desirable to adjust the low limit and the high limit of the control signal. Some EC motors or damper actuators cannot handle control signals that are too low. The low limit of the control signal can be adjusted via a built-in minimum adjustment trimmer. Sometimes, a fan is over dimensioned. In this case, the high limit of the control signal can be reduced via the maximum adjustment trimmer. This will limit the maximum fan speed.
How is the output mode selected?
The output mode is selected manually using a jumper that is placed onto the header pins. If put on pins 1 and 2, the output mode is voltage; if placed onto pins 2 and 3, it is current; if connected to pins 3 and 4, it is PWM.

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