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adjusting a numeric value; depressing the UP/DOWN key once, increases/decreases the parameter value by one digit.
For parameters having a series of options, depressing the UP/DOWN key once takes you to the next/previous option. In
each case, keeping the UP/DOWN key pressed speeds up the rate. If the value reaches the maximum / minimum settable
value/option, the Upper Readout flashes and the UP (if maximum value is reached) or DOWN (if minimum value is
reached) key has no effect.
3. Press and release the ENTER key. The new value gets stored in the controller’s non-volatile memory and the next
parameter in the list is displayed.
The Figure 3.2 illustrates the example of altering the value for the parameter ‘OP3 Function Selection’.
Figure 3.2
To exit the Program Mode and return to the MAIN Display Mode, press and release PAGE key.
Notes:
If the controller is left in Program Mode for more than 30 seconds without any key operation, the controller automatically exits the Program
Mode and returns to the MAIN Display Mode.
PARAMETER LOCKING
Though access to any PAGE is always permitted, the adjustment of the parameter values, however, can be Locked at the
supervisory level. If the Lock is enabled, the parameter values on each PAGE can only be viewed but can not be adjusted. This
feature facilitates protecting the parameter values from unauthorized tampering or accidental alterations by the operator.
The controller is shipped from the factory in Unlocked condition. The Lock can be enabled once the initial configuration /
installation is done.
For enabling / disabling the Lock, step through the following sequence:
Locking
1. Press and release PAGE key while the controller is in the MAIN Display Mode. The Lower Readout shows PAGE and the
Upper Readout shows 0.
2. Adjust the Upper Readout to the value 123 using UP/DOWN keys.
3. Press and release ENTER key. The controller returns to the MAIN Display Mode with the Lock enabled.
The Figure 3.3 below illustrates the Locking procedure.
Figure 3.3
User Manual
HumiTherm-c (Dry-Wet)
MAIN Display Mode
Return to
MAIN
Display Mode
