Dear All,
As Mr. John mentioned in the trailing mail, welding machines can be validated for out put characteristics such as Current and voltage. If it is pulsed machine then slope up/down current and time also to be validated.
Refer to BS standard 7570, which specifies about the validation of arc welding machines. Find attached herewith the relevant pages of the document for information.
Regards,
L. Prabhu kumar,
Sr. Principal Engineer,
Equipments & Materials Dept.,
Saipem India Projects Limited,
Tel:+91 44 43906588, Ext.: 588, Fax:+91 44 66840345,
Mobile Ph. No.: +91 9003010978.
From:
Sent: Friday, June 25, 2010 5:53 PM
To:
Subject: Re: [MW:5739] RE: 5734] welding machine
Hi.
If welding machine verification, not validate the output of voltage and current at specific settings throughout, you must send to repair the welding machine.
Agustin
De: John Du Plessis <duplessisj@saiw.co.za>
Enviado: vie, junio 25, 2010 12:42:36 AM
Asunto: [MW:5736] RE: 5734] welding machine
Tiju
You cannot calibrate a welding power source – you can only validate the output characteristics.
Use a conventional bench tester to validate the voltage and amerage characteristics throughout the output curve.
Alternatively use a clamp-on volt/amperage meter which has been calibrated to validate the output of voltage and current at specific settings throughout the range of the output curve.
John du Plessis
Technology Manager
Tel: +27 (11) 298 2100
Tel: +27 (11) 298 2103 (Direct)
Fax: +27 (11) 836 6014
Mobile:+27 (11) 82 883 4970
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From:
Sent: 24 June 2010 04:24 PM
To:
Subject: [MW:5734] welding machine
Hi all,
Can any one advise me how to calibrate the welding machine.
Regards
Tiju Koshy
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