Revision 3
STT850
Temperature Transmitter User’s Manual
Page 43
1.18.
Three Button Operation with no Display Installed
When there is no Display installed, the buttons can be used to perform a Zero or Span adjustment of
the Transmitter. Caution should be taken to insure these adjustments are only made when the correct
input values are applied. This feature is not available in the Fieldbus transmitter variant.
4.1.8 Zero Adjustment
This adjustment is the same as performing a Set LRV using the Display.
1.
Connect a current meter or voltmeter as shown in
Figure 13
to monitor the PV output of the
Transmitter.
2.
Using an accurate input source, apply a signal equivalent to the Transmitter LRV.
3.
Press the Down (
↓
) and Zero (
) buttons together to set the Zero.
4.
Verify that the output is now 4 mA.
4.1.9 Span Adjustment
This adjustment is the same as performing a Set URV using the Display.
1.
Connect a current meter or voltmeter as shown in
Figure 13
to monitor the PV output of the
Transmitter.
2.
Using an accurate input source, apply a signal equivalent to the desired Upper Range Value
of the transmitter.
3.
Press the
Down (
↓
)
and
Span
(
) buttons together to set the span.
4.
Verify that the PV output is now 20 mA.
You can also use the MCT 202 Toolkit to make any adjustments to an STT850
SmartLine Temperature Transmitter. Alternately, certain adjustments are possible through
an Experion Station or Universal Station, if the STT850 is digitally integrated with either of
these stations.
Summary of Contents for STT850 SMARTLINE
Page 75: ...Revision 3 STT850 Temperature Transmitter User s Manual Page 65 ...
Page 76: ...Page 66 STT850 Temperature Transmitter User s Manual Revision 3 ...
Page 77: ...Revision 3 STT850 Temperature Transmitter User s Manual Page 67 ...
Page 84: ...Page 74 STT850 Temperature Transmitter User s Manual Revision 3 A 6 Control Drawing ...
Page 85: ...Revision 3 STT850 Temperature Transmitter User s Manual Page 75 ...
Page 86: ...Page 76 STT850 Temperature Transmitter User s Manual Revision 3 ...
Page 87: ...Revision 3 STT850 Temperature Transmitter User s Manual Page 77 ...
Page 88: ...Page 78 STT850 Temperature Transmitter User s Manual Revision 3 ...
Page 89: ...Revision 3 STT850 Temperature Transmitter User s Manual Page 79 ...