Air Flow

Laboratory

on

ORIFICE METER for

M/s. EXIMP INTERNATIONAL INC, USA.

Page 1 of 23 pages NABL C-0026.

DATE OF RECEIPT

DATE OF CALIBRATION

DATE OF ISSUE

CERTIFICATE NUMBER

19.11.2016 23.11.2016 28.12.2016 CAH 1862 1611 129 Approved Signatory

SUMMARY

Results

Calibrated by Certificate Prepared by Certificate Checked by

Sandeep A. Y.

Sreejith S.

Aswathi Mohan M.

C.B Suresh

CERTIFICATE NUMBER : CAH 1862 1611 129 PAGE 2 OF 23 PAGES NABL C-0026

Ambient

conditions

(Nominal)

996±1 mbar 28±1 °C 63±5 %

Calibration

method

The Calibration is done using Air as per FCRI procedure

WP/AHP/CC/04. The reference used is part of the Closed

Loop Test Facility and consists of Turbine meter. The test

meter is mounted in series at downstream of the

reference meter.

Data The data are given in Table 1. The Prognosis software

data are given in Tables 4 to 14.

Results The results are given in Table 2. And prognosis test

screenshots and photographs of test setup are given in

Fig 1 to 18.

Uncertainty The uncertainty in Calibration is estimated as per NABL

141 ‘Guidelines for Estimation and Expression of

Uncertainty in Measurement’ and FCRI procedure

FCRI\AHP\UE\01. Accredited uncertainty of the

reference system is 0.3% as per NABL Accreditation

Certificate No.: C-0026, Valid Until 21/08/2018. The

uncertainty budget is given in Table 3.

Traceability All instruments, meters used are traceable to National

standards (NPL, New Delhi) and their calibration is

current.

FCRI

Reference

Major equipment used and selected from Equipment List:

HP/QLTY/15, Rev 14, 04-08-2016 is listed below.

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Prognosis test data (Part A)

i) Input the meter inlet diameter to flow computer too high

Objective – Determine whether the DUT detects that the Orifice meter inlet diameter is entered too high. Criteria – DUT should react in accordance with the manufacturers’ specifications.

A] Observed Measured Readings

B] Results displayed on the Prognosis Screen

Fig. 1

C] Conclusion:

Prognosis can also detect and address if the inlet diameter of orifice is high.

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ii) Input the meter inlet diameter to flow computer too low

Objective – Determine whether the DUT detects that the Orifice meter inlet diameter is entered too low.Criteria – DUT should react in accordance with the manufacturers' specifications.

A] Observed Measured Readings

B] Results displayed on the Prognosis ScreenFig. 2

C] Conclusion: Prognosis can also detect and address if the inlet diameter of orifice is low.

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iii) Input the meter orifice diameter to flow computer too high

Objective – Determine whether the DUT detects that the Orifice meter diameter is entered too high. Criteria – DUT should react in accordance with the manufacturers' specifications.

A] Observed Measured Readings

B] Results displayed on the Prognosis Screen

Fig. 3

C] Conclusion: Prognosis can also detect and address if the orifice diameter is high.

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iv) Input the meter orifice diameter to flow computer too low

Objective – Determine whether the DUT detects that the Orifice meter diameter is entered too low.Criteria – DUT should react in accordance with the manufacturers' specifications.

A] Observed Measured Readings

B] Results displayed on the Prognosis Screen

Fig.4

SCREEN SHOT NOT AVAILABLE WITH FCRI.PLEASE SHARE IF AVAILABLE WITH YOU.

C] Conclusion: Prognosis can also detect and address if the orifice diameter is low.

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v) Faulty DP reading

Objective – Determine whether the DUT detects a leak and faulty DP reading. Criteria – DUT should react in accordance with the manufacturers' specifications. A] Observed Measured Readings

B] Opened equalization valve

Fig.5

Crack opening of the

equalization valve

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C] Results displayed on the Prognosis Screen

Fig. 6

D] Conclusion:

Prognosis can also detect and address if there is any change in differential pressure.

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Prognosis test data (Part B)

i) Orifice plate installed backward

Objective – Determine whether the DUT detects that the Orifice meter inserted is backward. Criteria – DUT should react in accordance with the manufacturers' specifications. A] Observed Measured Readings

B] Reversed orifice plate (Id No. FE-01)

Fig.7

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C] Results displayed on the Prognosis Screen

Fig. 8

D] Conclusion:

Prognosis can also detect and address if the orifice meter is installed backward.

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ii) Worn orifice edge

Objective – Determine whether the DUT detects that the Orifice meter inserted is damaged. Criteria – DUT should react in accordance with the manufacturers' specifications. A] Observed Measured Readings

B] Worn orifice plate (Id No. FE-02)Fig. 9

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C] Results displayed on the Prognosis Screen

Fig. 10

D] Conclusion:

Prognosis can also detect and address if the orifice meter is damaged.

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iii) Partially blocked orifice

Objective – Determine whether the DUT detects that the Orifice meter is partially blocked.Criteria – DUT should react in accordance with the manufacturers' specifications.

A] Observed Measured Readings

B] Partially blocked orifice (Id No. FE-03)

Fig. 11

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C] Results displayed on the Prognosis Screen

Fig. 12

D] Conclusion:

Prognosis can also detect and address if there is any obstruction in meterthroat.

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iv) Orifice with less bore

Objective – Determine whether the DUT detects that the inserted Orifice meter is of less bore.Criteria – DUT should react in accordance with the manufacturers' specifications.

A] Observed Measured Readings

B] Orifice with less bore (Id No. FE-04)

Fig. 13

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C] Results displayed on the Prognosis Screen

Fig. 14

D] Conclusion:

Prognosis can also detect and address if the orifice meter is of less bore.

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v) Flow straightener blocked (upper side)

Objective – Determine whether the DUT detects that there is a flow disturbance.Criteria – DUT should react in accordance with the manufacturers' specifications.

A] Observed Measured Readings

B] Upper side blocked flow straightener

Fig. 15

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C] Results displayed on the Prognosis Screen

Fig. 16

D] Conclusion:

Prognosis can also detect and address if there is a swirl or disturbance inupstream.

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vi) Flow straightener blocked ( lower side)

Objective – Determine whether the DUT detects that there is a flow disturbance.Criteria – DUT should react in accordance with the manufacturers' specifications.

A] Observed Measured Readings

B] Lower side blocked flow straightener

Fig. 17

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C] Results displayed on the Prognosis Screen

Fig. 18

D] Conclusion:

Prognosis can also detect and address if there is a swirl or disturbance in upstream.