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SIEMENS temperature sensor, QAE2174.015

LEHIY item code: LH-1573

Reference Temperature Range: -10~120

Category: Immersion Temperature Sensor

Reference Humidity Range: /

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Product Overview

  • Immersion Temperature Sensor

  • Active sensor for acquiring the temperature of fluids inside pipes or containers

  • Operating Voltage AC 24 V or DC 13.5...35 V

  • Signal Output DC 0...10 V or 4...20 mA

  • Functions

  • The sensor acquires the temperature of the medium by measuring the change in resistance of the sensing element as a function of temperature.

    Depending on the sensor type, these temperature changes are converted into a DC 0...10 V or 4...20 mA output signal, which conforms to the selected temperature range.

  • Equipment Compatibility

  • All systems or devices capable of acquiring and processing sensor output signals (DC 0...10 V or 4...20 mA).

Notices

Engineering Considerations

  • If the rated pressure exceeds PN10, a stainless steel (V4A) protective sleeve is required. The temperature range should be selected based on the sensor if necessary.

  • A separate circuit safety low-voltage transformer is required to power the sensor. Local safety standards should be followed when selecting the transformer and protecting it.

  • The size of the transformer should be chosen to account for the sensor's power consumption.

  • Please refer to the sensor technical documentation to ensure correct sensor wiring.

    Cable length must be within the allowable range.

    When laying cables, it is important to note that the longer the cables are laid side-by-side and the smaller the spacing, the greater the electromagnetic interference.

    In environments with EMC issues, shielded cables must be used.

    Cables using transformer secondary power supply lines and signal lines must be twisted-pair cables.

Installation Notes

The sensor installation location depends on the application:

  • For supply water temperature control (heating fluid)

- Pump connected to the fluid, sensor placed directly after the pump

- Pump connected to the return flow, sensor placed 1.5m-2m after the mixing valve

  • For return water temperature limiting

The sensor should be installed at an elbow so that its immersion rod or protective cover is directly facing the fluid direction. The fluid at the temperature measurement point must be fully mixed.

If the pump is connected to the return flow, the temperature measurement point must be downstream of the pump, at least 1.5m from the mixing point.

The sensor should be installed in a location that avoids the signal line entering from the top.

For all types of sensors, the immersion length should be at least 60mm.

The sensor must not be covered by insulating material.

Product Applications

  • The sensor is used in the following applications in ventilation and air conditioning equipment:

  • Control and limit supply water temperature

  • Limit return water temperature control

  • Domestic hot water temperature

Technical Specifications

<t d>QAE
SpecificationValue
BrandSIEMENS
CategoryImmersion Temperature Sensor
Series
Output Signal/
Reference Humidity Range/
Reference Temperature Range-10~120
Probe Length150
AccuracyIn ±1 K from 0 to 70°C; ±1.4 K from -40 to 120°C.
Digital Display FunctionYes
Protection RatingIP54

Plain language sourcing guide for SIEMENS temperature sensor, QAE2174.015

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Brand Name:SiemensCertification:ISO9001, CE
Place of Origin:ChinaCondition:New
Warranty:1 yearCustomized sourcing:available

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SIEMENS temperature sensor, QAE2174.015

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