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6/08 ST 3000 Release 300 and SFC Model STS103 User’s Manual 135
7.6 Liquid Level Measurement - Vented Tank, Continued
Procedure, continued
Table 38 Starting Up DP Transmitter for Liquid Level Measurement in Vented Tank,
Continued
Step Press Key Read Display or Action Description
9
Open valve A to begin measuring tank
pressure. Leave LP side vented to
atmosphere.
ATTENTION
If the URV was
calculated on the approximate
density of the liquid and/or tank
height, the exact URV can be set by
filling the tank to the desired full
scale level and then setting the URV
through the SFC. See section 6.7 in
this manual for details.
10
Take SFC and milliammeter readings to
check that output signal does
correspond to applied tank level
pressure. If readings don’t correspond,
check that transmitter has been installed
correctly. If applicable, blow down piping
to be sure no foreign matter is entrapped
in it. Check SFC and milliammeter
readings again. If readings are still not
correct, verify transmitter’s configuration
data and change its range setting if
needed.
11
Remove SFC and milliammeter from
loop.