Rotronic HF3A-2 Humidity and Temperature Transmitter

Probe: Humidity and Temperature fix mounted

Accuracy at 23°C: ±1.2 %rh, ± 0.1 °C

Initialization time: Typically 5 seconds.

Measurement intervall: 1 s

Measurement range: 

0 %rh to 100 %rh

Wall: 1: -40 °C to 85 °C/-10 °C to 60 °C

Duct2/Cable: -50 °C to 100 °C

Range of applications

0 %rh to 100 %rh (non-condensing)

-10 °C to 60 °C with display

-40°C to 85 °C without display

Trend indicator: Yes

Display: Resolution up to 2 decimal places without backlighting

Output signals analog: 4 mA to 20 mA

Resolution analog output: >15 Bit

Cable connections: 1 x M12 screw terminals (2 x M12 for HF3A-D)

Psychometric calculations: All

Power supply: 10 VDC to 28 VDC

Circuit type: 2-wire

Current Consumption: 2x23 mA

Load per analog output: Max. 500

Humidity Sensor: ROTRONIC Hygromer ® HT-1

Temperature Sensor: Pt100 1/3 Class B

Interface: UART, NFC and USB

Software HygroSoft

Housing material PC-ABS

Dimensions 

Wall: 122 x 172 x 40.5 mm

Duct: 122 x 82 x 265.5 mm

Cable: 122 x 82 x 40.5 mm (Housing only)

144 x 15 mm (Probe only)

Weight

Wall: 204 g

Duct: 226 g

Cable: 332 g

IP-Protection: IP65

Soldering material: Lead free (RoHS-Directive 2011/65/EU)

Standards: CE Conformity 2014/30/EU

Conformity: GAMP5

Datasheet