Technical data

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How to set an analogue current output scale
User menu functions 1.3.1 to 1.3.4
This set of functions allows users to set up a scale. The minimum (4mA) and maximum (20mA) values of an analogue current output should ideally lie within the
device’s active measuring zone, as the device will freeze when the signal is lost.
Refer to the measurement limits table for each probe type in the introduction. Refer also to the start of section 3.3.3 for the advantages of changing tank height.
Example procedure 2 (using PCSTAR 2):
To personalise a measurement scale
select “Level” as the current output parameter for the scale to be set up from the tank bottom
select 4 … 20 mA current range with an error output at 22 mA; choose suitable minimum and maximum values for the scale.
Step Action Data entered / value set
1 Press F2 to connect to the device Tank status screen displayed (level reads 5650 mm)
2 Press F2 to enter configuration menu Configuration menu displayed
3 Scroll down the screen and click on the data set field for Fct. 1.3.1: Current 1
item. This will reveal a scroll menu.
This field currently reads “distance”
4 Use mouse to scroll down data set field. Click on the new value. This field now reads “level”
5 Scroll down to Fct. 1.3.2: Current 1 range and click on data set field. This will
reveal a scroll menu.
This field currently reads “4-20 mA”
6 Use mouse to scroll down data set field. Click on the new value. This field now reads “4-20 mA / E = 22 mA”
7 Scroll down to Fct. 1.3.3: Scale I1 min and click on data set field. This field currently reads “0000 mm”
8 Enter the new value. This will give the level that corresponds to the minimum
output of 4 mA.
This field now reads “1000 mm”
9 Scroll down to Fct. 1.3.4: Scale I1 max and click on data set field. This field currently reads “6000 mm”
(std. default: 6000 mm)
10 Change to 9850 mm. This will give the level that corresponds to the maximum
output of 20 mA.
(and sets max. output at the top dead zone limit)
This field now reads “8850 mm”
11 Press F6-Send to MicroTrek to immediately update the device configuration. n/a
12 Press F3-Exit to quit the configuration menu screen. Tank status screen displayed (level reads 5650 mm)