Rotronic HygroFlex - 9.4 Function ADJUST REF

IN-E-HyFlex-V4_10
Rotronic AG
Bassersdorf, Switzerland
Document code Unit
Instruction Manual
Document Type
HygroFlex transmitter version 4: instruction
manual
Document title
Page 42 of 61
© 2006; Rotronic AG IN-E-HyFlex-V2_10.doc
9.4 Function ADJUST REF
In the Remote Control Mode, the function Adjust REF can be used to do a 1-point adjustment of
the ROTRONIC HygroClip probe(s)
1)
connected to the transmitter against the probe connected to
the HygroPalm indicator. The function adjusts both humidity and temperature simultaneously.
The following choices are available for the reference probe:
a) REF = PALM: to access this function, a probe must be connected to one of the HygroPalm
probe inputs. The other probe input of the HygroPalm is already used to connect to the TEST
port of the transmitter. The reference is the probe connected to the HygroPalm.
HygroFlex 2 or 3 with second probe option: when 2 probes are connected to the HygroFlex, the
probe that was displayed on the HygroPalm prior to entering the function menu will be adjusted.
b) REF = FLEX (HygroFlex 2 or 3): this is available only when the HygroFlex has 2 probe inputs
and the reference is always the probe connected to input 2 of the HygroFlex. Probe 1 will be
adjusted (1-point) to match probe 2. Probe 2 cannot be adjusted against probe 1.
1) When no such probe is detected, the message “connect fail” will be displayed.
Press MENU and use the UP or the DOWN key to access Adjust REF from the function menu.
Press ENTER to select this function.
After pressing the ENTER key, the display of the HygroPalm shows the relative humidity and
temperature data from the reference probe. When the HygroFlex has 2 probes, use the UP or the
DOWN key to select either REF = PALM or REF = FLEX. The data on the display is the data read
by the reference probe at the time the ENTER key was pressed. This data is not updated while the
function Adjust REF is active (see Notes below).
Press the ENTER key to accept the reference data. The message “sure?” should appear on the LC
display. Press ENTER to do the 1-point adjustment of both humidity and temperature or press
MENU to abort and exit this process. When the message “Adjust OK” appears, press ENTER to
exit.
Notes:
Expose both probes to be to the same stable environment. Ventilation of both probes is highly
recommended. Observe the readings from both probes for complete equilibration (this can be done
by entering and exiting a few times the function Adjust REF so as to check both probes prior to
adjusting).
If the transmitter has its own display, it simply repeats the data or commands shown on the display
of the HygroPalm.
10 Environmental limits
The HygroFlex can operate in the temperature range of –40...60°C (-40…140°F) and should not be
exposed to condensing humidity. Units with the optional LC display and keypad should not be used
below -30°C (-22°F).