ROTRONIC HF8 - Manual (Page 10)

E-M-HF8-V2_10
Rotronic AG
Bassersdorf, Switzerland
Document code Unit
HygroFlex HF8 Humidity Temperature
Transmitter: User Guide Instruction Manual
Document Type
Page 10 of 35
Document title
© 2012; Rotronic AG E-M-HF8-V2_10
3.13 HW4 Software compatibility
The HF8 is best used with HW4 version 3.2.0 or higher.
WARNING: do not use the HF8 with any HW4 version lower than 2.4.0 as this could damage the HF8
firmware and prevent normal operation.
4 User configurable settings and functions
The HF8 can be used just as any conventional humidity and temperature transmitter. Making use of the HF8
configurable settings and functions is entirely up to the user and the appropriate settings depend on the user
application. We have provided below a short description of the HF8 functions and also indicated the factory
default settings.
4.1 Function overview (HF8 and HygroClip 2 probe)
MEASUREMENT ACCURACY AND RELIABILITY
Function Description
► Humidity / temperature adjustment
o 1-point or multi-point humidity calibration or adjustment
o 1-point or 2-point temperature calibration or adjustment
o Generate a time stamp for calibrations and adjustments
o Retain and view last adjustment date and adjustment values
o Generate calibration and adjustment protocols
► Automatic humidity sensor test
and optional drift compensation
Tests the humidity sensor for drift caused by contaminants and
can be used to automatically apply a correction. The test is
automatically carried out at regular intervals of time. Can be
configured, enabled, or disabled
The humidity sensor status can be verified either with the HW4
software or with the instrument display (if available) and is
shown as Good, SQ-tuned (corrected for drift) or Bad (defective)
► Data recording by the probe
The data recording function differs from a true data logging
function in the sense that the HygroClip 2 probe does not time
stamp the data. The data recording function can be use to
investigate events such as a sensor malfunction as well as to
retrieve data that would otherwise be lost
o
Start or stop data recording - up to 2000 value pairs (%RH
and temperature). Starting a recording session erases all
previously recorded data
o The recording mode and log interval can be specified
o When the device is powered off, the recording session is
paused but not ended As long as the recording session has
not been ended, the device automatically resumes recording
data when powered up again
o The recorded data can be downloaded to a PC with the
HW4 software, time stamped and viewed
► Data logging by the HF8
The HF8 can log up to 10,000 pairs of relative humidity and
temperature values provided by a single HygroClip 2 probe or
up to 10,000 data values provided by a single 1-channel analog
probe. Both probe inputs can be logged at the same time and in
that case the recording capacity per probe is cut in half. Each
record is automatically date and time stamped. The calculated
parameter cannot be recorded.