General
HF3/4/7 families measure relative humidity and temperature. TF5 measures only temperature.
Note: As the TF5 is based on the HF4 transmitter and will therefore be displayed as HF4 in the device tree.
Add device - Interface
This device supports USB and LAN.
For USB
•AC3006: Service cable for transmitters with external power supply
•AC3009: Service cable for transmitters without external power supply
Configuration
•To display all the possible settings for the device, it has to be read out first by clicking on the button "Read".
•By clicking on the button "Write" all the changed settings will be applied to the device.
Device
•Description: A device name can be defined for the individual device by the user.
•Enable humidity limit: Typically, the humidity sensor gives a reading slightly above 100 %RH when condensation occurs at the surface of the sensor. Check this box to limit the maximum value of humidity to 100 %RH.
•Calculation: Several calculation can be chosen that are based on humidity and temperature - e. g. dew point, frostpoint, vapor pressure etc.
Language settings
•Metric and imperial can be switched for the temperature.
•The unit of relative humidity can be defined.
Analog output
•Parameter and
•Scaling
Fix values
•For simulation reason, fix values can be defined and activated.
Alarm
•Alarm conditions can be defined for humidity (Alarm 1), temperature (Alarm 2) and the calculated (Alarm 3) parameter. Values that are below the low alarm value or above the high alarm value will trigger an alarm.
•The value specified for the alarm function hysteresis is used for both the low and the high alarm.
Special device configuration
•The device settings can be protected with a password.
•The RS485 address can be adjusted manually.
Adjust
The HF3/HF4/HF7 (except the 2-wire HF32 & HF42) has the possibility to acquire and then adjust multiple adjustment points for temperature and humidity.
•For the humidity it's possible to adjust up 100 measurement points.
•For the temperature it's possible to adjust up to 2 measurement points.