D122.A 4 Manual Page 17
See the following example of a temperature measurement for a successful parameter input. o Situation
• desired range: +10°C ... 20°C
• sensor range: -20.0°C ... +30.0°C o Adjustment
1] Measure range:
2] Bargraph:
-20,00 °C ... + 30,00°C for 4 ... 20 mA
-5°C ... + 25°C
3] Limits:
4] Hysterese: lower limit (min): +10°C upper limit (max.): +20°C
0,5°C low and high limit circuit-opening connection
5] Alarm monitoring mode:
6] Time delay:
15 seconds
Procedure:
One touch on the enter-button quits the normal state and starts
the input menu.
The menu interrogates for code 1.
The default code 1 is [0001].
Enter the right code word using the arrow buttons.
;
Scaling display and bargraph:
Finally hit the enter-button.
Join the scale menu pressing the enter-button.
SET
SET
First set the position of the decimal point. The position of the decimal point will be used for each parameter, like display, bargraph and limits.
Set the decimal point position after the second position, because we will enter [2000] for the high scale point afterwards.
Fortunately the default setting is on the desired position, so we can pass the item pressing the right-button.
Now the [scale point low] view appears.
Confirm by pressing the enter-button and enter the lower scale
point
(-20°C) as follows:
D122.A 4 Manual Page 18
SET
Choose the negative sign pressing the up-button.
SET
Touch the right-button to select the first figure.
Now hit the up-button two times ...
SET
... and the figure ‘2’ will be adjusted.
SET
Press the right-button to select the next figure.
SET
SET
Hit the up-button until the figure ‘0’ appears.
Confirm the lower scale point pressing the enter-button. Now the...
... item appears.
Repeat the input procedure for the upper scale point like the lower scale point. Enter [3000] for the upper scale point.
(Confirm by hitting enter-button)
Enter the upper scale point correct figured ‘as big as possible’
(the first figures should not be ‘0’)
In this case you get most precision of the indicator.
SET
SET
Now scale the bargraph. Hit the enter-button.
Enter [-0500] (-5°C) for the lower bargraph scale point.
Confirm by hitting the enter-button
Enter [2500] (25°C) for the upper bargraph scale point.
Hitting enter-button accepts and quits the scale menu.
;
Limits, Hysteretic curve and time delay
Start limit menu by pressing the enter-button.
SET
Press the enter-button for a second time and enter [1000] (10°C) for the lower limit using the arrow buttons.
Confirm by hitting the enter-button.
(Remember, that the decimal point position is already set)
D122.A
SET
SET
SET
SET
SET
SET
4 Manual Page 19
Press the enter-button and enter [2000] (20°C) for the upper lim-
it.
Confirm by hitting the enter-button.
To select the hysteresis of the lower limit press the enter- button.
Now enter [0050] (0,5°C) using the arrow-buttons and confirm with the enter-button.
To select the hysteresis of the upper limit press the enter- button.
Now enter [0050] (0,5°C) using the arrow-buttons and confirm with the enter-button.
Now press enter-button to activate the time delay.
Enter [0015] (15 seconds) for both limits.
Confirm by hitting the enter-button.
Now define the circuit-opening connection first for the low alarm limit.
Choose the circuit-opening connection [nc---] (normal closed) using the up-button and confirm by pressing enter-button.
Define the circuit-opening connection for the upper alarm monitor by the same procedure.
Confirm by hitting the enter-button and quit the limit menu.
We pass simply the following menu items (manipulate code words and calibrate) using the right-button.
Finally quit the scale menu hitting the enter-button.
The indicator is back in normal state. The changes are immediately active and will be stored after turn off (disconnecting the indicator).
