.
1.0 OBJECTIVE:
To lay down the procedure for the
operation of checkweigher.
2.0 SCOPE:
This SOP shall be applicable for the
operation of checkweigher in the packing area.
3.0 RESPONSIBILITY:
3.1 Execution : Operator
3.2 Checking :
Production Pharmacist & Above
4.0 ACCOUNTABILITY:
HOD-Production / Assigned Designee
5.0 PROCEDURE:
5.1 Ensure that checkweigher is cleaned.
5.2 Production person shall ensure
the cleanliness of the checkweigher & area and ‘CLEANED’ label on
it.
5.3 Before starting the operation production
person get the line clearance from Q.A person by writing the status label with
Product Name, Batch Details to equipment & area.
5.4 Check calibration status of checkweigher.
5.5 Put ON the main switch.
5.6 Open
the valve of compressed air and keep the air pressure not less than 4.0 - 6.0
kg / cm2.
5.7 Switch ON the mains of HMI. Screen
will display as
PRODUCT # 00
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BATCH No. # 00
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COMPENSATION FACTOR # 0000.0 ON /
OFF
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NET WEIGHT
# 0000.0 G.
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UW # 000000
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AVERAGE (X)
# 0000.0 G.
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OK # 000000
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OW # 000000
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TARGET # 0000.0
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SPEED # 000
PACKS
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+ Limit # 00.0
g.
|
- Limit # 00.0
g.
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||
5.8 To enter new program or edit existing
program, press Setup – 1 key. Screen will display
1. Select
product
2.
View / Edit product data
3. Dynamic
compensation
4. Calibration
5. Set
password
6. Set
date / time
5.9 Calibration of checkweigher:
5.9.1
Put on the checkweigher.
5.9.2 Press the calibration screen will display
as
ENTER PASSWORD #
|
5.9.3 After entering the password confirm that
weighing platform is empty and then press enter to continue.
5.9.4 Display screen will show “WAIT”.
5.9.5
Put standard weight of 1.0 kg on weighing platform and then press enter
to continue.
5.9.6 Screen should display 1000.0 gm (Acceptance
criteria: 999.0 - 1001.0 gm).
5.9.7
If screen display is within limit, carry out further calibration, if not calibrate with 1000 gm.
5.9.8
Switch ON/OFF checkweigher, calibrate with 10, 20, 50,100, 200,500 &
800 gram & record it in format.
5.9.9 Affix “If results are not within Acceptance
criteria limit, affix “OUT OF ORDER” label and inform to maintenance.
5.10 Operation:
5.10.1 By default, cursor will be on 1. Select
product. Press enter key to retrieve list of products.
5.10.2 Select the required product using ( ↓ )
arrow key and press enter.
5.10.3 Product details of the selected product will
be displayed on the screen. In case, changes are to be made in the stored data,
select the details and enter. Screen will display as : “ENTER PASSWORD”
5.10.4 Feed the required details and press enter
key. For entering further data, if any use ( ↓ ) arrow key feed the
data and press enter to save the changes made.
5.10.5 Press weight display key to view the screen
as shown under procedure number 5.8.
5.10.6 Press weight display screen it will show the
weight of individual carton.
5.10.7 Underweight and overweight, cartons are
rejected by checkweigher in the rejection box.
5.10.8 Handle the checkweigher rejected cartons and
record in BPR when required.
5.10.9 On completion of work, switch OFF HMI, main
power supply and close valve of compressed air.
5.11 Challenge Test:
Challenge
test of checkweigher equipment as follow.
a) Take one carton, remove the one strip/blister
or leaflet then put this carton on conveyor belt of check Weigher machine which
should be rejected by checkweigher system.
b) Take one carton, add the one strip / blister
or leaflet then put this carton on conveyor belt of Checkweigher machine which
should be rejected by checkweigher system.
Note
:
Whenever
the checkweigher is shifted from one packaging line to another,
a) Check the spirit level or ensure that the air
bubble of the spirit level is at center.
b) Verify the checkweigher as per the
calibration schedule. Record the details of verification in Checkweigher
Calibration Record in format.
Precautions –
a) Don’t
keep weighing conveyor load with weight
b) Stop
conveyor and set to zero by pressing “set zero” key, if required
6.0 ABBREVIATIONS:
6.1 SOP: Standard Operating Procedure
6.2 BPR: Batch Packing Record
6.3 Q.A.: Quality Assurance
6.4 HOD: Head of The Department
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