Humidity Transducer in room housing, with display, with changeover contact, 0-10 V or 4-20 mA

SKU: RRF/A

Category: Humidity

Manufacturer: FuehlerSysteme

0...100% r.H.
accuracy ±3% r.H.
output 0-10 V, 4-20 mA
heating function for condensation protection

Output r.H.: 0-10 V

0-10 V, changer

4-20 mA

4-20 mA, changer
Humidity: 0-100% r.H.
Supply voltage: 15...36 V DC

24 V AC/DC
Version: with display

without display

Available immediately

from 179,81 €

incl. 19% VAT , plus

This item has variations. Please select the requested variation.

The RRF/A room humidity transducer registers the relative humidity 0...100% r.h. of the air in the environment using a capacitive sensor and converts this measured value into a linear output signal 0-10 V respectively 4-20 mA. As an option the device has a potential-free changeover contact and a backlit display. The display content can be rotated in 90° steps using a menu and the measured value, the switching threshold set, the state of the respective relay, the MIN/MAX measured values for the selected intervals (1 h / 6 h / 12 h / 24 h) etc. can be read out. In addition 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 sensor in modern room design can, if required, be finely calibrated in situ using an offset controller.

Manufacturer information:

FuehlerSysteme eNET International GmbH
Röthensteig 11
90408 Nürnberg

+49 911 37322-0
info@fuehlersysteme.de

Measurement range r.H.:	0-100% r.H.
Accuracy:	±3% r.H. (30%...70% r.H., else ±5% r.H. at 20°C)
Temperature dependency:	±0,02% r.H. / K (voltage output), ±0,04% r.H. / K (current output)
Long term stability:	±1%/year
Sensor:	capacitive humidity sensor
Sensor protection:	mounted inside housing, condensation protection by heating function in the range of 95...99% r.H.
Supply voltage analog 0-10 V:	24 V AC/DC (±5%)
Supply voltage analog 4-20 mA:	15...36 V DC (Ubmin = 15 V + RLoad*0,02A)
Current consumption at 0-10 V:	typ. 10 mA, 30 mA peak current consumption for 50 ms at switching moment at option relay
Current consumption at 4-20 mA:	max. 20 mA / output, 40 mA peak current consumption for 50 ms at switching moment at option relay
Analogue output 0-10 V:	3-wire connection, load current < 0,1 mA
Analogue output 4-20 mA:	2-wire connection (transmitter), max. RLoad(Ohm) = (+Ub - 15 V) / 0,02 A
Alarm output:	1 x potential-free change-over contact, 48 V, 1 A
Switching Hysteresis Relay:	2% of the selected scaling (without display), 0,5...5% of the selected scaling adjustable (with display)
Electrical connection:	screw terminals max. 1,5 mm²
Display:	optional LCD display with backlight on/off/auto
Cable gland:	on the back or housing side (predetermined breaking point)
Housing:	ABS polyman, colour signal white like RAL 9003
Dimensions:	Housing: L 82 x W 82 x H 25 mm
Protection type:	IP30, IP20 (with display)
Protection class:	III
Working range r.H.:	0...98% r.H. in contaminant-free, non-condensing air
Working temperature:	0...+50°C
Storage temperature:	-20...+50°C
Installation:	on-wall or on flush-mounted box
Approvals:	CE, EAC, RoHS

FuehlerSysteme

Humidity Transducer in room housing, with display, with changeover contact, 0-10 V or 4-20 mA

0...100% r.H. accuracy ±3% r.H. output 0-10 V, 4-20 mA heating function for condensation protection

from 179,81 € *

Available immediately