sop for Calibration of Dosing Pumps

1.0 OBJECTIVE :
1.1 To lay down a procedure for Calibration of Dosing Pumps.

2.0. SCOPE :

2.1 This procedure is applicable to Calibration of Dosing Pumps Water plant Chemical dosing Pumps at Pharma Dekho .

3.0. RESPONSIBILITY :
3.1 Operator Engineering Department shall be responsible for Calibration of Dosing Pumps.
3.2 Officer/Executive Engineering Department shall be responsible for to verify the proper calibration of Dosing
Pumps.
4.0 ACCOUNTABILITY :

4.1 Head Engineering Department shall be accountable for compliance of SOP.

5.0. PROCEDURE :
5.1 Procedure for Calibration of Dosing Pumps:
5.1.1 Dosing pumps specification are as under below
Strokes : 0-100%
Flow : 0-4 LPH
5.1.2 Take measured beaker of 100ml and set dosing pumps stroke at 25%.
5.1.3 Put beaker at dosing pumps outlet and start dosing pump for a few second and remove air from its tube and put in beaker (Take water in feed tank for dosing trial).
5.1.4 Liquid quantity shall be taken for 1 minute and note down the reading.
5.1.5 Repeat again all reading for 50%, 75% and 100%.
5.1.6 Compare all readings (measured quantity) as mentioned in 5.19 standard.

5.1.7 Calibration parameters:

Sr No	Stroke (%)	Qty Per Min(ml)	Permissible Limits(ml)	Qty Per Hrs(ml)
1	100	66.00	64-68	4000
2	75	50.00	48-52	3000
3	50	33.00	32-35	2000
4	25	16.00	15-18	1000

5.1.10 If quantity not comes with in permissible limit, Check its orifice ball, diaphragm position and condition, If found damage replace the same.

5.1.11 Repeat all steps from 5.1.2 to 5.1.6 and frequency of Calibration of Dosing pumps Quarterly as per Annex-I.
5.1.12 Dosing pumps Nos. and its calibration
Dosing pump #1 : Chlorine dosing (Borewell outlet)
Dosing pump #2 : SMBS dosing (Boiler feed)
Dosing pump #3 : NaoH dosing (Boiler feed)
Dosing pump #4 : SMBS dosing (Purified water feed)
Dosing pump #5 : NaoH dosing (Purified water feed)
Dosing pump #6 : Antiscalant dosing (Purified water feed)

6.0. ABBREVIATION :

Sr. No.	Abbreviation used	Full form of abbreviation used
1.	SOP	Standard operating procedure
2.	EM	Engineering and maintenance
3	LPH	Litre Per Hour
4	SMBS	Sodium meta bi sulphate