Optimization/Correction Of Problems - Siemens SITRANS F Operating Instructions Manual

Section 2
Avoid mounting on pipe seams.
Connect "UP" Cable to "Upstream Transducer" (closest to source of flow) and vice
versa.
START-UP
Ensure pipe is FULL (flowing or not).
Select "Install Complete?".....INSTALL to Invoke "Initial Makeup" routine.
Verify "Measured Vs" is accurate for liquid type & temperature (Consult Vs Database)
Set Zero appropriately (AutoZero or ZeroMatic for Reflect, Actual Zero or ReversaMatic for
Direct).
After completion of Zeroing, access Flow Display by pressing <MENU> key.
Use <UP/Down Arrows> to scroll through available displays.
DIAGNOSTIC/PERFORMANCE VERIFICATION
Verify Vs is correct for Liquid and Temperature.
Verify Valc is Greater Than 30.
Verify Vaer is Less Than 10 when flowing.
Check Signal Graph Trace to be acceptable. See reference graphs below.
For 1011 Universal Transducers verify "VfMax" is significantly higher than maximum Flow
Rate of application.
Set "Hi Flow" at 90% VfMax; Ensure it is higher than Max Application Flow Rate.
Set "Lo Flow" at –10% VfMax. (For unidirectional flow applications only!)
Set "Lo Flow" at 10% Greater Than Maximum Negative Flow (Bi-Directional Applications).

2.12.2 OPTIMIZATION/CORRECTION OF PROBLEMS

Incorrect "Measured Vs"
Verify actual pipe (outside) diameter matches meter programming.
Verify actual Wall Thickness matches meter programming.
Verify transducer Type and Size matches meter programming.
Verify transducer mount method, and spacing positions (indices) match meter programming.
2-80
1010PFM-3G