ROTRONIC HygroLab - Manual (Page 24)

IN-E-HyLab-V4_11
Rotronic AG
Bassersdorf, Switzerland
Document code Unit
Instruction Manual
Document Type
HygroLab bench top indicator version 4:
instruction manual
Document title
Page 24 of 51
© 2006; Rotronic AG IN-E-HyLab-V4_11
b) Humidity or Temperature 1 : press the ENTER key to select. The LC display shows the
value read by the probe at the time the ENTER key was pressed. The word “humidity” or
“Temperature” is shown on the message line. Use the ▼ or ▲ key to change the humidity
or temperature value to the value of the reference environment. For a faster change, keep
the key pressed down. Press the ENTER key when done.
1 1-point temperature adjustment: limited by the firmware to -20…< 40°C (-4…<104°F)
After pressing the ENTER key, the message “sure?” should appear on the LC display. Press
ENTER to confirm. Next, the LC display will confirm that the probe adjustment has been
successfully completed. At that time, press ENTER to exit.
Note: you can exit the function at any time (without calibrating the probe) by pressing the MENU
key.
6.6 ADJUST REF
Definition
Note: this function is not available with the HygroLab 1
When two or more ROTRONIC HygroClip digital probes are connected to the HygroLab, the Adjust
REF function uses probe #1 as a reference to do a 1-point adjustment (both humidity and
temperature) of all the other probes simultaneously.
Warning: a 1-point adjustment is no substitute for a full calibration (2 or more points). Doing a 1-
point adjustment can improve accuracy over a narrow range of conditions and may also be
detrimental to accuracy at other conditions.
Procedure
Expose all probes to the same stable environment. Ventilation of the probes is highly
recommended. Observe the readings from all probes for complete equilibration with the reference
environment.
Press the ENTER key to enter the function. The display asks you to wait for a short time and then
shows the temperature and humidity read by the reference probe at the time the ENTER key was
pressed. Note that these values are not updated to the display as long as the function is active.
The message line of the display shows REF = Probe 1, indicating that probe #1 is the reference
(this cannot be changed).
Press the ENTER key to accept. After pressing the ENTER key, the message “sure?” should
appear on the LC display. Press ENTER to confirm. Next, the LC display will confirm that the probe
adjustment has been successfully completed. At that time, press ENTER to exit. Note: you can exit
the function at any time (without calibrating the probe) by pressing the MENU key.