K-Patents PR-03 - Manual (Page 37)

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5 Startup, configuration and calibration adjustment 31
5.3 Using Indicating transmitter
5.3.1 Keyboard functions
The keyboard has 10 number keys and four soft keys, marked with letters A-D. The meaning of a soft key
changes depending on what has been entered previously, i.e. what display is shown. The meaning of a soft
key is always displayed on the screen above the key, for example the Normal display always has soft keys
C=Calibrate and D=Display and, if the system has prism wash, also A=Start prism wash (see
Figure 5.4).
The ENTER key is used to accept entered numeral values (to "OK" them) and the RESET key is used to
cancel input and to move "backwards" in the command structure.
The commands that can be given to the Indicating transmitter have been arranged into a selection tree, i.e.
command groups and subgroups (see Figure 9.5). The "root" of the selection tree is the Normal display
(Figure 5.4), to which the IT-R always returns if it doesn’t receive any keyboard commands for a predefined
reset time (normally 60 seconds).
A B C D
CONC
68.0%
PROCESS TEMPERATURE: 31.2 °C
STANDARD RI(25°C): 1.4194
TEST: 115.7
Normal operation
Calibrate Display
A B C D
CONC
68.0%
PROCESS TEMPERATURE: 31.2 °C
STANDARD RI(25°C): 1.4194
TEST: 115.7
Normal operation
Start
prism
wash
Calibrate Display
Figure 5.4 Normal display
Each command in the selection tree can be reached from the Normal display with its own, unique key
sequence. For example you can view the relay configuration with the sequence D (Display) - C (System
configuration
) - A (Relay configuration), i.e. starting from the Normal display, press first soft
key D, then soft key C, then soft key A. After viewing the configuration you can go backwards to the Normal
display by pressing the Reset key three times.
Whenever New value: _ _ _ _ is displayed, new parameter values can be entered by the numerical
keys
. If you accidentally enter a wrong number, you can erase it with RESET. When the number (value)
is complete, press ENTER. After this the IT-R will ask for reconfirmation with the following text: Press
ENTER to change (Otherwise press RESET)
. Thus, press ENTER if you want the new value
to become effective. If you want to discard the new value and return to the old value, press RESET.