ROTRONIC HF62 - Manual (Page 9)

E-M-HF62-V1_11
Rotronic AG
Bassersdorf, Switzerland
Document code Unit
Instruction Manual
Document Type
HygroFlex HF62 Humidity Temperature
Transmitters: User Guide
Document title
Page 9 of 27
© 2008; Rotronic AG E-M-HF62-V1_11
4.1 Function overview
MEASUREMENT ACCURACY AND RELIABILITY
AirChip 3000 Functions 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 The data recording function differs from a true data logging
function in the sense that the AirChip 3000 does not time stamp
the data. This data recording function can be used 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
MEASUREMENT LOOP VALIDATION
AirChip 3000 Functions Description
► Simulator mode Used to make the HF62 generate fixed values for the humidity,
temperature and calculated parameter. Can be configured,
enabled or disabled
DEVICE SAFEGUARDS
AirChip 3000 Functions Description
► Device write protection Used to protect the HF62 with a password to prevent
unauthorized digital access by a digital user. Can be configured,
enabled or disabled
► Internal menu access from keypad Used to prevent accidental changes to the HF62 settings and
temperature-humidity adjustment by disabling the MENU key on
the optional keypad. Can be enabled or disabled