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88 SMV 3000 Transmitter User’s Manual 1/99
7.5 Starting Up Transmitter, Continued
Procedure, continued
Table 23 Start up Procedure for SMV Transmitter Model SMG170,
continued
Step Action
8
Close vents to high pressure and low pressure input ports. Close
vents to wet legs in steam applications.
9
Open equalizer valve C.
10
Open valve A to make differential pressure zero (0) by applying same
pressure to both sides of meter body.
Allow system to stabilize at full static pressure - zero differential.
11
Select DPInCal tab card and read input of applied DP (PV1) pressure
in the selected engineering unit.
• If input reads 0% input, go to step 12.
• If input does not read 0% input,
- Click the Input option button.
- Click the Correct button to correct input to zero.
12
Select TempInCal tab card and read input of applied temperature
(PV3) input in desired engineering unit. Verify that it is equivalent to
process temperature.
13
Close equalizer valve C and open valve B.
14
In the FlowInCal tab card and read input Flow (PV4) signal in desired
engineering unit. Verify that it is equivalent to calculated flow rate at
operating conditions.
SMV Draft Range
Start-up Procedure
Use the procedure in Table 24 to start-up an SMV 3000 transmitter model
SMA110 and transmitters with small differential pressure spans.
Table 24 Start up Procedure for SMV Transmitter Model SMA110
Step Action
1
Make sure that all valves on the three-valve manifold are closed. See
Figure 26 for sample piping arrangement.
For installations without a three-valve manifold, connect a tube
between the high pressure (HP) and low pressure (LP) input ports.
2
Make sure the transmitter is attached to the mounting brackets but
the bolts are not tightened completely; loosen if necessary.
Continued on next page