Humidity/Temperature Transducer for duct mounting, highly accurate with calibration certificate, with display, with changeover contact, Modbus RTU

SKU: FS1121

Category: Duct

% r.H., g/m³, g/kg, DP °C
accuracy ±2% r.H.
Modbus RTU, relay
heating function for condensation protection
hinge lock technology

Output: Modbus RTU
Equipment: without

Display

Display, Relay

Relay
Humidity: 0-100% r.H., 0-80 g/m³, 0-80 g/kg, -20...+80°C DP
Temperature: -20...+80°C

from 336,72 €

excl. 19% VAT , plus

This item has variations. Please select the requested variation.

The FS1121 duct transducer registers the temperature and relative humidity of the ambient air and converts this measured value into a digital output signal. The humidity measuring device has a heating function to protect the sensor at high humidity 95...99% r.h.. If the relative humidity exceeds the threshold value set ex-works for a certain period of time the heating function is activated. The sensor is heated for a limited time and thus dried and protected against condensation. During the heating and the subsequent temperature balancing phase the output signal is kept stable at the last measured value before the heating function was triggered. The humidity and temperature sensor is very well protected against contamination by a screwable sintered filter and can, if required, be finely calibrated in the register using an offset value. As special equipment a potential-free alternating contact and/or a backlit display are available The contents of the display can be rotated in steps of 90° by using a command. As special functions a series of defined measured values from other bus-participants (also cross-manufacturers) can be shown in the display. To display measured values from other bus-participants these are entered into the corresponding register by the bus-Master. The optional alternating contact can be configurated for measured values from other bus-participants. The configuration of address, transmission mode/speed, terminating resistor and master/slave function of the bus-devices can easily be done using the innovative DIP switch technology. Thus devices can quickly and easily integrated into the system and later parameterised via the master. The bus-devices can even be reset to the works settings during operation of the master. Thus the basic functionality of the device is recreated in a matter of seconds. This can be necessary in the event of incorrect parameterisations of, e.g. offset, switching threshold, display modes etc.. By means of the FS master/slave topology autarkic nodes without additional SPS master can be installed within the device series. Hereby a bus-device assumes the master function in the node. This requests the measured values from other bus-participants, automatically enters these into the corresponding register and shows them in the internal display. Furthermore the master can evaluate and operate additional actuators in the device series (analogue in- and outputs, relay station).

Measurement range temp.:	-20...+80°C
Measurement range abs. humidity:	0-80 g/m³ (calculated)
Measurement range air fuel ratio:	0-80 g/kg (calculated)
Measurement range r.H.:	0-100% r.H.
Measurement range dew point:	-20...+80°C DP (calculated)
Accuracy humidity:	±2% r.H. (30-70% r.H., else ±3% r.H. at 20°C)
Accuracy temperature:	±0,3 K (10...40°C, else ±0,5 K),
Temperature dependency:	±0,02% r.H. / K (voltage output), ±0,04% r.H. / K (current version), ±0,05°C / 10 K (voltage version), ±0,07°C / 10 K (current output)
Long term stability:	±1%/year
Sensor:	Combined electronic humidity and temperature sensor
Sensor protection:	screwable stainless steel sinter filter, condensation protection by heating function in the range of 95...99% r.H.
Supply voltage:	24 V DC (±5%)
Current consumption:	max. 20 mA + 30 mA (option display) + 20 mA (option relay)
Alarm output:	1 x potential-free change-over contact, 48 V, 1 A
Digital output:	Modbus RTU
Switching Hysteresis Relay:	can be entered in the register
Offset:	can be entered in the register
Electrical connection:	push-in terminal, no tools required, time-saving
Display:	optional LCD display with backlight on/off/auto
Material:	Protection tube: stainless steel V2A
Flow rate:	< 2 m/s
Cable gland:	PG11 high-strength cable gland with strain relief
Housing:	Polycarbonate PC UL 94 V0 with hinge locks, color signal white similar to RAL 9003
Dimensions:	Housing: L 89 x W 80 x H 47 mm, Protection tube: Ø 16 x 210 mm
Protection type:	Housing/electronic: IP65, Sensor: IP30
Protection class:	III
Working range r.H.:	0...98% r.H. in contaminant-free, non-condensing air
Working temperature:	Probe: -20...+80°C, Electronic: -20...+70°C
Storage temperature:	-20...+50°C
Installation:	mounting flange (in scope of delivery)
Certificate:	industrial calibration certificate with reference to national standard
Approvals:	CE, EAC, RoHS