EU declaration conformity
Potentiometer | no OFF position
Product description
The MTV-1-010-NA potentiometer is a practical device designed to generate a continuous variable signal for the remote control of various HVAC equipment. This straightforward potentiometer plays a crucial role in regulating EC fans, damper actuators, AC fan speed controllers (EVS or MVS series), or frequency inverters (FI-E series).
Operated with a 230 VAC supply voltage, the MTV-1-010-NA provides a reliable output voltage range of 0-10 VDC. Its primary function is to offer precise control, allowing you to adjust the control signal according to the position of the rotary knob. This makes it a valuable component in scenarios where remote control of HVAC equipment is essential. A notable feature of the MTV-1-010-NA is its intentional lack of an OFF position. In situations where maintaining a minimum air supply is technically or legally required, this potentiometer ensures that the control signal never reaches 0 V. Even when the rotary knob is turned to the minimum position (counterclockwise), the control signal remains at the minimum value, approaching 0 VDC. In combination with speed controllers with analog input, this unique characteristic addresses specific applications where continuous operation is necessary.
The MTV is suitable for both inset mounting (IP44) and surface mounting (IP54), providing installation flexibility to meet your specific requirements.
Documents
Additional specifications and description
A potentiometer generates a continuously variable signal to control other devices. This control signal increases or decreases according to the position of the rotary knob. The control signal is typically used to remotely control EC fans or damper actuators. It can also remotely control AC fan speed controllers (EVS or MVS series) or frequency inverters (FI-E series). For example, the potentiometer can be installed in the study while the fan speed controller is located in a technical room or an electrical cabinet.
230 VAC supply voltage
This potentiometer operates with a supply voltage of 230 VAC and produces an output voltage ranging from 0 to 10 VDC. The 230 VAC supply voltage is common in many electrical systems, and the 0 - 10 VDC output range allows for precise adjustment of the associated HVAC equipment. You just connect your MTV-1-010-NA directly to the mains without the need for a power supply module.
A 0 - 10 VDC control signal is the most common method used in the HVAC industry for controlling various parameters, such as EC fan speed, valve positions or other components in electronic systems. The 0 - 10 VDC control signal corresponds to a range of desired settings. For example, if you have a system that requires modulation or adjustment, the 0 - 10 VDC control signal can be interpreted to represent a range from 0% to 100% of the desired parameter. A 0 V signal might indicate the minimum setting, while a 10 V signal could represent the maximum setting.
Without OFF position
The absence of an OFF position in the potentiometer implies that even when the rotary knob is at its minimum position (turned fully counterclockwise), the control signal will not reach 0 VDC but will maintain a minimum value that approaches 0 VDC. In situations where it is technically or legally necessary to ensure a minimum air supply at all times, this design feature prevents a complete shutdown of the associated equipment.
This configuration is intentional, as it ensures that there is always a minimum level of control or operation, addressing the specific requirements or constraints of certain applications. I is essential to consider such design aspects to comply with regulations or meet the operational needs of HVAC systems in various scenarios.
Enclosure
The potentiometer features a wall-mounted housing constructed from durable ASA plastic in a cream color (RAL 9010). The choice of material ensures UV resistance and offers protection against dust, water splashes and impacts. The design allows for versatile installation on any type of wall or panel as the enclosure accommodates both inset and surface mounting options, providing flexibility in installation. The protection class is IP44 for inset mounting and IP54 for surface mounting, attesting to its reliability in safeguarding the internal components against environmental elements.
For inset mounting, the enclosure design aligns with standard European wall boxes, ensuring a seamless fit. The overall solidity of the enclosure makes it suitable for mounting in various types of walls.
This combination of material and design features contributes to the potentiometer durability and suitability for various environments within the HVAC sector. Cleaning is a straightforward process, requiring only a damp cloth, adding to the convenience of maintenance.
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