GE Moisture Target Series 6, Руководство пользователя

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Chapter 3. Operation and Programming
Moisture Target Series 6 Hygrometer User’s Manual 41
3.3.7 Trimming the Outputs
The
Trim Menu
enables the operator to compensate for differences in
measurement of the 0/4-20 mA or 0-2V outputs by connected recorders or
SCADA equipment. To trim the output:
Select
Trim
from the
Output Menu
and press
Enter
. The following screen appears.
When performing a Trim operation, the
MTS6 unit requires you to first reset the trim.
To reset the trim output, select
Reset Trim
and press Enter . The following screen
appears.
Use the left or right arrow keys to select
YES
and press
Enter
. This cancels any
previous trim values, and returns the
MTS6
to its factory adjustment. The display returns
to the previous screen.
To trim the zero value, select
Trim Zero
and
press
Enter
. A screen similar to the
following appears.
This will cause the MTS6 to output 4.000 mA or 0.4 V on the output being
trimmed. The output value should then be read using the connected
recorder, SCADA equipment, or DVM. Enter the value read from the
connected equipment as the
Zero Trim
value, as follows:
Note:
Since you cannot trim 0 mA or 0 V for negative offsets, trim for the
lower end of the scale is at the 4 mA or 0.4 V output level.