HF3A Rohatyn Temperature and Humidity Sensor

About Us

Zhuhai Obert Measurement and Control Technology Co., Ltd

E-mail
1714578587@qq.com
Phone
15989761119
Address
Room 502, Taiwan Business Association Center, No. 2029 Mingzhu South Road, Zhuhai City

Date: 2025-12-17Read: 10

Measure core parameters

parameter type	specific numerical value
Temperature measurement range	Conventional -40 ℃~60 ℃; The model with LCD display is -10 ℃~60 ℃
Humidity measurement range	0%~100% RH (non condensing)
Measurement accuracy (23 ℃± 5 ℃)	Humidity ± 2.0% RH, specially calibrated R-type can reach ± 1.0% RH; temperature ± 0.3 ℃, specially calibrated R-type can reach ± 0.2 ℃
Auxiliary calculation parameters	It can calculate dew point and frost point, and some models support the calculation of humidity parameters such as mixing ratio and enthalpy value
response time	When the air flow rate at the sensor is 1m/s, t63<12 seconds (under the condition of humidity switching from 35% RH to 80% RH)
long-term stability	Long term humidity stability<1% RH/year; Airchip chip reproducibility<0.02% RH, 0.01 ℃

Output and communication parameters

parameter type	specific numerical value
analog output	2 freely expandable analog outputs, with optional 0-20mA, 4-20mA current signals, or 0-1V, 0-5V, 0-10V voltage signals
digital output	The 3/4 wire model supports RS485 output and comes standard with UART digital signal
service interface	Equipped with a mini USB interface, it can connect devices for configuration and data transfer
data storage	Support storing 20000 sets of records (divided into 2 sets of 10000 sets of data each)

Power supply and environmental parameters

parameter type	specific numerical value
power supply voltage	The 2-wire system model is 15-40VDC; 3/4 wire model supports 15-40VDC or 12-28VAC
power consumption	The working power consumption is less than 100mA, and the battery power supply current loss is only 10mA when there is no backlight
Protection level	Wall mounted or pipeline installation models (such as HF3XX-W series) have a protection level of IP65; The indoor built-in sensor model (HF3x-S/HF3x-R) is IP20
Allow environment	Allow high wind speed of 20m/s (with filter status); The fire rating of the shell complies with UL94-HB standard

Other additional parameters

parameter type	specific numerical value
display function	Optional graphic display, display content can be configured through software, with backlight function
operating function	Equipped with trend indicator and alarm indicator light, supporting single or multi-point temperature and humidity button adjustment, the device supports password protection
supporting software	Compatible with ROTRONIC HW4 software, capable of firmware updates, graphical data analysis, calibration adjustments, and other functions
Shell and probe	The shell material is ABS, the probe material is polycarbonate, and it is equipped with a 20 micron polyethylene dust filter
cable length	Passive cables can be up to 5 meters long, while active cables can be up to 100 meters long