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Duct Sensors
FTK+
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 controllers and color-changing LCD allow for a wide range of applications. The accuracy of the humidity sensor is 2%. A hinged cover and tool-free wiring as well as removable cable entries ensure a quick and easy installation.
Application/type | Duct sensor |
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Purpose | Measure values |
Measured values | temperature, relative humidity, absolute humidity, enthalpy, dew point |
Interface | LoRaWAN® (868 MHz), RS485 Modbus, RS485 BACnet, LON FT, Passive, Active, 0..5 V, 0..10 V, 4..20 mA, Switch contact |
Configuration | USEapp, uConfig, BUS, jumper, DIP switches, LoRaWAN® Downlink, (depending on type) |
Sensor | PT1000 DIN cl. B, PT100 DIN cl. B, PT1000 1/3 DIN, PT100 1/3 DIN, Ni1000 DIN cl. B, Ni1000TK5000, NTC10k, NTC10k Precon, NTC20K, NTC1,8K, NTC5K, LM235Z, additional passive sensor |
Output voltage | 2x 0..10 V or 0..5 V, adjustable via jumper, live-zero configuration via app or uConfig, min. load 10 kΩ |
Output current | 2x 4..20 mA, max. load 500 Ω |
Output switch contact | 2x floating contact NO for 24 V ~ or 24 V = / 3 A |
Network technology | RS485 Modbus, RS485 BACnet (MS/TP), LON FT (free topology) |
Radio technology | LoRaWAN® (868 MHz) |
Data transmission | bidirectional, RTU, half-duplex, baud rate 9.600, 19.200, 38.400 or 57.600, parity: none (2 stop bits), even or odd (1 stop bit) |
Operating range temperature (°C) | -20..+70 |
Output signal temperature | scaling analogue output, -20..+80 °C (default setting), selectable from 4 temperature ranges -40..+60 | 0..+50 | -20..+80 | -15..+35 °C, adjustable at the transducer, optionally configurable, depending on used sensor |
Operating range humidity | max. 85% rH short term condensation |
Accuracy temperature | ±0,3 K (typ. at 21 °C), ±0,4 K (typ. at 21 °C), within default measuring range, ±0,3 K (typ. at 0 °C), ±0,4 K (typ. at 0 °C), ±0,2 K (typ. at 25 °C, temperature dependend), potentiometer for offset adjustment, offset setting via app or uConfig |
Measuring range humidity | 0..100% rH non-condensing, 0..85 KJ/kg enthalpy, 0..50 | 0..80 g/m³ absolute humidity, 0..+50 | -20..+80 °C dew point, adjustable at the transducer, optionally configurable |
Accuracy humidity | ±2% between 10..90% rH (typ. at 21 °C), potentiometer for offset adjustment, offset setting via app or uConfig |
Power supply | 15..24 V = (±10%) SELV, 15..35 V = SELV, 24 V ~ (±10%) SELV, 19..29 V ~ SELV, battery type AA (2x) |
Power consumption | typ. 0,4 W (24 V =), max. 0,7 W (24 V =), max. 1 W (24 V =), max. 2,5 W (24 V =), 0,8 VA (24 V ~), 1,8 VA (24 V ~), 4,3 VA (24 V ~) |
Material in touch with media | Pipe, PA6, with filter stainless steel wire mesh, black, Ø=19,5 mm |
Installation length (mm) | 140, 270, 400 |
Display | LCD 29x35 mm, RGB backlight, with traffic light function, threshold values configurable, optionally configurable via app or uConfig |
Enclosure | USE-S, impact- and shock-resistant enclosure with quick-release cover, PC, USE-M, impact- and shock-resistant enclosure with quick-release cover, PC |
Colour | pure white, transparent cover |
Protection (IP) | IP65, according to EN 60529 |
Connection | removable cable entry flextherm M20 for wire Ø=4,5..9 mm, removable cable entry M25 with fourfold cable entry for wire with max. Ø=7 mm, removable plug-in terminal, max. 2,5 mm², BUS max. 1,5 mm², relay max. 1,5 mm² |
Delivery content | incl. mounting flange, incl. mounting set (screws and accessories), incl. battery type AA (2x) |
Notes | air speed max. 12 m/s, external antenna available on request |
Option enclosure | LCD 29x35 mm, RGB backlight |
Vorschau | Name |
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FTK-Plus_Header.jpg |
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