FTK+ relay / LCD / BUS

Duct sensor for measuring relative and absolute humidity, enthalpy, dew point and temperature in gaseous media of heating, ventilation and air-conditioning systems as well as clean rooms. The optional features, such as relay outputs for 2-point controllers or 2-stage 2-point controller, LCD with traffic light indication and 7-color LED allow for a wide range of applications. Depending on the model, the FTK+ can be individually configured via Thermokon USEapp. The accuracy of the humidity sensor is 2%. Tool-free cover and wiring as well as removable cable glands ensure a quick and easy installation.

Measured valueshumidity, temperature, output humidity configurable
Output voltage2x 0..10 V or 0..5 V (adjustable via jumper; live-zero configuration via app or uConfig), min. load 10 kΩ
Output currentAA: 2x 4..20 mA, max. load 500 Ω
Output switch contactRelay: 2x floating contact NO for 24 V ~ or 24 V = / 3 A, optional
Network technologyRS485 BACnet (MS/TP), LON FT (free topology), RS485 Modbus
Power supply15..35 V = or 19..29 V ~ SELV, AA: 15..35 V = SELV
Power consumptionmax. 2,5 W (24 V =) | 4,3 VA (24 V ~)
Measuring range temp.-40..+60 °C | 0..+50 °C | -20..+80 °C | -15..+35 °C, adjustable at the transducer, default setting: -20..+80 °C
Measuring range humidity0..100% rH non-condensing, enthalpy: 0..85 KJ/kg, absolute humidity: 0..50 | 0..80 g/m³, dew point: 0..+50 | -20..+80 °C, adjustable at the transducer, optionally configurable via app or uConfig
Accuracy temperature±0,3 K (typ. at 21 °C within default measuring range), passive: depending on used sensor
Accuracy humidity±2% between 10..90% rH (typ. at 21 °C)
Air speedmax. 12 m/s
DisplayLCD 29x35 mm with RGB backlight, optional
Enclosureenclosure USE-M, PC, pure white, LCD: cover PC, transparent, with removable cable entry
Protection (IP)IP65 according to EN 60529
Cable entryFlextherm M20 for wire Ø=4,5..9 mm, Relay/BUS: M25 with fourfold cable entry for wire with max. Ø=7 mm, removable
Electrical connectionremovable plug-in terminal, max. 2,5 mm², BUS terminal: removable plug-in terminal, max. 1,5 mm²
PipePA6, black, Ø=19,5 mm, length 140 | 270 | 400 mm
Filterstainless steel wire mesh
Ambient condition-20..+70 °C, max. 85% rH short term condensation
Delivery contentincl. mounting flange
Contact

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Thermokon Sensortechnik GmbH
Platanenweg 1
35756 Mittenaar
Tel.: +49 2778 6960-0


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