Honeywell ST 3000 User Manual page 103

6.8 Setting Range Values Using Local Adjustments,
Continued
Procedure, continued
6/05 ST 3000 Release 300 and SFC Model STS103 User's Manual
Table 27 Setting Range Values Using Local Zero and Span
Adjustments, continued
Step
Using an accurate pressure source, apply pressure equivalent to
7
desired upper range value to transmitter.
ATTENTION For differential pressure transmitters, apply pressure
to the high pressure head and be sure that the pressure to the low
pressure head is at its reference value.
Check that milliammeter reading is 20 mA.
8
If reading ...
is not exactly 20 mA
is correct
ATTENTION
Span adjustment option, you may substitute the Local Smart Meter
readings for the milliammeter readings. For example, with URV input
pressure applied assume that the meter reads 396 inH2O instead of
400 inH2O. In this case, the meter reading is less than 100% (or 20
mA).
Example – Local Smart Meter displaying transmitter output in inches
of water.
Action
Then...
go to Step 9.
go to Step 10.
If you have the Local Smart Meter with Zero and
V A R
SEL.
0 %
39 6
SPAN
ANALOG
ZERO
UPPER
VALUE
100
UNITS
S E T
In H O
2 LOWER
VALUE
Continued on next page
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