Different ZIEHL-ABEGG PTC (Positive Temperature Coefficient) thermistors are available. The ZIEHL-ABEGG control unit detects the ambient temperature at the measuring point by the change in resistance in the sensor (KTY81-210). Resistance at 25 °C = 2 kΩ (tolerance 1 %). The polarity can be ignored when connecting.
The temperature measuring range depends on the properties of resolution or programming of the allocated ZIEHL-ABEGG control unit.
The following types of passive thermistors are available:
- Room sensor TFR with plastic box for outdoor or industrial use
- Living room sensor TFW with plastic housing
- Immersed sensor TFT for installation in on-site immersed sleeve
- Plant sensor TFA for pipework
- Duct sensor TFK with housing and sensor rod for air ducts
Alternatively, the active MTG-120V thermistor can be supplied. This consists of a connection housing to which a 2 m long cable with sensor element is firmly connected.
Application possibilities as contact sensor or immersed sensor, e.g. in oil cooler. The MTG… has the measuring range -10 to 120°C and generates 0 – 10 V proportionally over the measuring range.
