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SimplyPats Portable Appliance Testing Software
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 Post subject: pat testers
PostPosted: Wed Mar 19, 2014 6:35 pm 
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Joined: Wed Mar 19, 2014 12:16 pm
Posts: 2
can i use seaward pac 500 old type just pass and fail on it it is not my main machine it is a pat 32 the 500 is just a standby if the pat 32 goes down thank you brian


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 Post subject: Re: pat testers
PostPosted: Wed Mar 19, 2014 7:48 pm 
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Joined: Wed Jan 23, 2008 11:47 pm
Posts: 1087
Location: Cornwall
Hi 240 Brian

First of all I better point out that I'm not an expert in PAT testing as we only write the SimplyPats software, however the Seaward PAC 500 is a discontinued? tester and as such may have some limitations.

After doing a bit of research I beleive the PAC 500 conducts the Insulation Resistance test at 500 Volts DC. When testing sensitive I.T. equipment in and in particular equipment fitted with a surge protector, 250 Volts is I beleive recomended.

Also the Earth bond test is conducted at 25 amps and again for sensitive equipment a much lower amperage e.g. 200 mA is suggested to avoid damage.

Another issue you may encounter is the Earth Bond limit is set within the PAC 500 at less than 0.2 Ohms for a pass and cannot be adjusted. You may encounter issues when testing items with a long flex as the resistance of the lead could cause the tester to say the appliance is a fail. You would therefore need to make a calculation of the resistance of the flex (based on the length and cross sectional area of the conductor) to understand the significance of the result.

Hopefully this helps, maybe some of our users with more field experience or knowledge will correct any of my incorrect advice.

Regards, Richard.


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 Post subject: Re: pat testers
PostPosted: Fri Mar 21, 2014 10:24 am 
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Joined: Wed Mar 19, 2014 12:16 pm
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many thanks for your reply richard you are right in what you say it is a old machine had it a few years but still works as it does not give readings on earth test i will invest in another current machine as a standby


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 Post subject: Re: pat testers
PostPosted: Fri Mar 21, 2014 3:08 pm 
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Joined: Wed Jan 23, 2008 11:47 pm
Posts: 1087
Location: Cornwall
Hi 240 Brian

Think that's a wise idea, a new tester will give you more flexibility.

Regards, Richard


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