Advantage Controls GF with MegaTron XS, Инструкция по установке, обслуживанию и ремонту

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3. Calibration
Calibration is for adjusting the displayed value of a probes reading to match your tester or known solution.
Pick the system or mA input first. From a particular system pick the probe to calibrate.
All MegaTronXS controllers are factory calibrated. All units are shipped with the date preset, and the clock
set to your current time. These readings and settings should be verified for accuracy, and adjusted as per
the instructions listed below.
3.3 4-20mA Output Calibration
4-20mA outputs can be calibrated to insure that the
output generated by the controller and received by the
external device match. With a volt meter connected
across the out and return wires (see page 24) of the
4-20mA output channel to be calibrated go into the
output’s Low or High calibration.
The number displayed in the Calibration dialog box
can range from 0-4095 with 800 equal to 0 mA output
and 4030 equal to 20 mA. This number range of
0-4095 is the raw digital to analog (D/A) values and is
strictly used for a reference. The D / A numbers you
get will vary based on your installation conditions.
While in the High or Low calibration pop-up screen use
the up and down arrows to change the output value
being read with the volt meter. Adjust the High value
for the 20 mA reading and the Low value for the 4 mA
value.
3.4 4-20mA Input Calibration
4-20mA inputs can be calibrated to insure that the input seen by the controller from the external device match.
It also allows for setting the 4-20mA input into a number range that relates to the value being read.
Select the Input to be calibrated
The 20mA and 4mA values are where the controller’s
raw analog to digital value is adjusted to match a 20mA
(full scale) and 4mA (bottom of scale) signal from the
external device inputting the 4-20mA input. The external
device must be connected to the controller and showing
either full scale or bottom of scale when calibrating
each. The number shown along with either the 20mA
or 4mA while calibrating is the raw A/D value and is only
>CURRENT LOOP CALIBRATION<
OUTPUT 1
OUTPUT 2
>mA OUTPUT 1 CALIBRATION<
HIGH 4030
LOW 800
>mA OUTPUT 1 CALIBRATION<
OUTPUT 1 CAL HIGH
4000
Use Up/Down arrows to change
Use Enter to save value
>CURRENT LOOP CALIBRATION<
INPUT 1
INPUT 2
>mA INPUT 1 CALIBRATION<
20mA 5500
4mA 1100
MAX 200
LOW 0
OFFSET FACTORY DEF.