Technical specification

Device type	Humidity and temperature probe
Range of application	Electronic: -40…+85 °C / 0…100 %rh Sensor head: -100…+200 °C1 / 0…100 %rh Continuous Load: 190 °C max
Mechanical configuration	See variants
IP protection	IP65
Power supply / connection
Power supply (VDD)	3.3…15 VDC ±1 %
Current consumption	<3 mA
Maximum inrush current	<200 mA for 50 µs
Maximum operating current	<3 mA
Polarity protection	Mechanical protection
Humidity measurement
Sensor	ROTRONIC HYGROMER® HT-1
Measurement range	0…100 %rh
Measurement accuracy	±0.8 %rh at 10…30 °C
Long term stability	<1 %rh / year
Sensor response time	Typically 30 sec, for 63 % of 35 to 80 %rh step (1 m/s wind speed at sensor)
Temperature measurement
Sensor	Pt100 RTD, IEC 751 1/3 Class B
Measurement range	-100…+200 °C 1
Measurement accuracy	±0.1 °C at 10…30 °C
Long term stability	<0.1 °C / year
Sensor response time	Typically 3 min, for 63 % of the temperature change (1 m/s wind speed at sensor)
Calculated parameters
Psychrometric calculations	None
Start time / measurement interval
Start time	90 ms (typical)
Measurement interval	500 ms (typical)
Digital interface
Type	UART
Factory default	Baud rate 19200, tolerance 2 % Parity: none Data bits: 8 Stop bits: 1 Flow control: none
Logic levels	Logic 0: ≤0.4 V Logic 1: ≥2…2.5 V
Maximum cable length	3 m
Conformity
CE / EMC	EMC Directive: 2014/30/EU EN 61326-1 (industrial locations) Performance criterion: www.rotronic.com
Soldering	Lead free (RoHS Directive 2011/65/EU)
FDA/GAMP directives	Compatible
Accepted environmental conditions
Storage/transportation	-50…+100 °C / 0…100 %rh, non-condensing
Range of application (electronics)	-50…+100 °C 0…100 %rh, non-condensing
Maximum wind velocity	See filter specifications
Critical gases	Please consider the sensor data sheet of the HT-1 sensor. Please contact Rotronic support for that.

1The peak load at 200 °C is 100 h maximum. Continuous Load 190 °C maximum. See the sensor data sheet for detailed information on the pollution loads.