NC0027103_Flow Meter Calibrations_20100420

"-Apr'20' 10 04:16p KAREN T. DIAL
910-521-1221
p.1
Town of Pembroke
POST OFFICE BOX 866
PEMBROKE, NORTH CAROLINA
28372
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Apr 20 10 04:16p KAREN T. DIAL
910-521-1221 p.2
eEXPERT
SERr7CFS
INTERNATIONAL, LLC
Instrument Name and Service
Influent Flowmeter
Instrumentation Calibration Report
Serial Number
94W009399
Manufacturer
F&P
Model Number
50US3143BBB
Tag Number
Loop Number
Output Range
0-4.0.MGD - Head @4.0MGD = 19.08
Units:
Input
ft. H2O
Zero Settin
g
42.85" from transducer's face
Desired Output
MGD
Actual Output
MGD
0.0
0.0
0.0
0.1
0.0586
0.059
1.15
2.457
2.441
Position of Switches, Jumpers
Totalizer setting = 7525
Damping Setti
N/A
ng
Alarm Settings
N/A
Noise Reduction
N/A
Primary Device Size
9" Parshall Flume
Calibration Factor
N/A
L.O1T1[ntlJLS
Settings as found: Zero = 42.70" - Changed to: Zero = 42.85"
Flow reading before calibration: 0.00 MGD @ 0.00' of head
Flow reading after calibration: 0.0 MGD @ 0.00' of head ,
Error difference 0°/a of total span
Calibrated
By
Date
Javier Varela
04-14-10
Location
Pembroke WWTP
Engineer's Signature

Apr 20 10 04:17p KAREN T. DIAL
910-521-1221 p.3
EXPERT
SERVICES
IµTERNATIONAL, LLC
Instrument Name and Service
Effluent Flowmeter
Manufacturer
F&P
Instrumentation Calibration Report
Serial Number
94W009404
Model Number
50US3143BBB
Tag Number
Loop Number
Output Range
0 - 3.0 Iv1GD - Head @ 3.0 MGD = 5.16"
Units:
Input -
ft. H2O
Zero Settin
A
23.60'I from transducer's face
Desired Output
MGD
Actual Output
MGD
0.0
0.0
0.0
0.23
1.187
1.19
0.16
0.688
0.677
Position of Switches, Jumpers
Totalizer setting: 1250
Damping Setti
N/A
n9
Alarm Settings
N/A
Noise Reduction
NIA
Primary. Device Size
5 foot rectangular weir w/o end contract.
Calibration Factor
N/A
Comments
Settings as found: Zero = 23.65" changed to 23.60"
Average error = 0.030 MGD
Error difference was: 1% of total span
Calibrated B
y
Date
Javier Varela
04-14-10
Location
Pembroke WWTP
Engineer's Signature
•