Room Sensors

FTB+

Wall-mounted sensor for measuring relative humidity and temperature in a high quality and inconspicious stainless steel design. For plastering into flush-mounted boxes or installations in hollow walls. Especially designed for museums and exhibitions, where measuring accuracy and almost invisible sensors have to be installed due to architectural design. The precise measurements provided to a BMS system contribute to a comfortable room climate and prevent mold formation.

Application/type	Room sensor
Purpose	Measure values
Measured values	temperature, relative humidity, absolute humidity, enthalpy, dew point
Interface	RS485 BACnet, Active, 0..5 V, 0..10 V, 4..20 mA
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 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)
Operating range temperature (°C)	-40..+120
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), 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
Power consumption	typ. 0,4 W (24 V =), max. 1 W (24 V =), max. 2,5 W (24 V =), 0,8 VA (24 V ~), 4,3 VA (24 V ~)
Material in touch with media	Sensor head, Ø=13 mm, end of sensor Ø=7 mm, stainless steel V2A (1.4305)
Installation length (mm)	35, 67
Display	LCD 29x35 mm, RGB backlight
Enclosure	USE-M, impact- and shock-resistant enclosure with quick-release cover, PC
Colour	pure white, transparent cover
Protection (IP)	enclosure 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
Connection cable	PVC, 0,14 mm², grey
Length connection wire (m)	15
Mounting	plastering or installation in hollow wall
Delivery content	incl. mounting base enclosure USE-M pure white, incl. mounting set (screws and accessories)
Packaging length (mm)	147
Packaging width (mm)	127
Packaging height (mm)	95
Packaging	case packaging
Device length (mm)	85
Device width (mm)	84
Option enclosure	LCD 29x35 mm, RGB backlight
Gefahrgut	No