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Outdoor Sensors Climate+Air Quality

FTA54+

Outdoor sensor for measuring relative humidity and temperature in HVAC applications, greenhouses, industrial halls and in meteorology. The output can also be configured to measure absolute humidity, enthalpy or dew point. The optional features, such as relay outputs for 2-point controllers or 2-stage 2-point controllers and an LCD with traffic light indication enable 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 Outdoor sensor
Purpose Measure values
Measured values temperature, relative humidity, absolute humidity, enthalpy, dew point
Interface 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, (depending on type)
Output voltage 2x 0..10 V or 0..5 V, adjustable via jumper, live-zero configuration via app or uConfig, min. load 5 kΩ, 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)
Data transmission 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
Operating range humidity max. 85% rH short term condensation
Accuracy temperature ±0,3 K (typ. at 21 °C), within default measuring range, 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)
Power supply 15..24 V = (±10%) SELV, 15..35 V = SELV, 24 V ~ (±10%) SELV, 19..29 V ~ SELV
Power consumption typ. 0,4 W (24 V =), typ. 1 W (24 V =), max. 0,7 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, PC, pure white, length 53 mm, with filter stainless steel wire mesh
Display LCD 29x35 mm, RGB backlight, with traffic light function, threshold values configurable, optionally configurable via app or uConfig
Enclosure 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 base enclosure USE-M pure white, incl. mounting set (screws and accessories), incl. sun/rain protection PC, white
Packaging length (mm) 100
Packaging width (mm) 128
Packaging height (mm) 65
Packaging case packaging
Device length (mm) 85
Device width (mm) 118
Device height (mm) 45
Option enclosure LCD 29x35 mm, RGB backlight
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