Author Topic: Fluke AC DC Differential Voltmeter 893A ? Main plug old style ??  (Read 1088 times)

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Online OverspeedTopic starter

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Hello

on my Differential Voltmeter 893A I have a ''old style'' main plug

Where is possible to purchase one new ? as that look old
or
I convert it with a new style main AC socket as on the second picture ??

Regards
OS
 

Offline Dr. Frank

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Re: Fluke AC DC Differential Voltmeter 893A ? Main plug old style ??
« Reply #1 on: January 23, 2025, 04:42:58 pm »
Afaik, it's unobtainium, new.
I really vote for replacement by actual plug.
Frank
 
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Online OverspeedTopic starter

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Re: Fluke AC DC Differential Voltmeter 893A ? Main plug old style ??
« Reply #2 on: January 23, 2025, 05:48:01 pm »
Afaik, it's unobtainium, new.
I really vote for replacement by actual plug.
Frank

Hello
Thanks as some old plastic go brittle not include most o the time a quite high price , I can cut a new shape in the metal enclosure and install a good Schaffner socket i there is room behind .
Goal is not to make quick and dirty setup but some thing in the original spirit o the equipment

Regards
OS
 

Offline floobydust

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Re: Fluke AC DC Differential Voltmeter 893A ? Main plug old style ??
« Reply #3 on: January 23, 2025, 07:36:33 pm »
Maybe consider upgrading to modern IEC 320 C6 (laptop) like Schurter 6160.0001 or 2561 or the snap-in versions.
This would require less cutting. There is the C5 as well. You'd have to compare what cutout you have now.

A problem with EMI filtering power entry modules is they dump all the powerline hash and RF to chassis ground. It's better to use a medical grade one, these have Y-caps after the input inductors.
 
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Online OverspeedTopic starter

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Re: Fluke AC DC Differential Voltmeter 893A ? Main plug old style ??
« Reply #4 on: January 24, 2025, 09:04:59 am »
Maybe consider upgrading to modern IEC 320 C6 (laptop) like Schurter 6160.0001 or 2561 or the snap-in versions.
This would require less cutting. There is the C5 as well. You'd have to compare what cutout you have now.

A problem with EMI filtering power entry modules is they dump all the powerline hash and RF to chassis ground

Hello
this model looks interesting
I have no real problem with the available room as the last version have this type o socket , only need to check the internal room as that 40 mm lenght.

Regards
OS
 

Online factory

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Re: Fluke AC DC Differential Voltmeter 893A ? Main plug old style ??
« Reply #5 on: January 24, 2025, 07:08:34 pm »
The leads for the PH163 type connector are only really available as new-old-stock or used, Sphere still have one in stock under the HP tab as "HP old style power cord" https://www.sphere.bc.ca/type/hp/ , they turn up on feeBay occasionally, but easier to find over in the US.

There is also some 3DP thing on the web too, I don't like the connector sockets chosen for that.

I'm not a fan of the IEC C5, C6 connectors either, they are often very poor quality and current rating is only 2.5A, which could be an issue for those in the US.

David
« Last Edit: January 24, 2025, 07:14:52 pm by factory »
 

Offline floobydust

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Re: Fluke AC DC Differential Voltmeter 893A ? Main plug old style ??
« Reply #6 on: January 24, 2025, 07:31:01 pm »
You don't need an EMI filter, the 893A power transformer has (triple) extra shielding to cover that.

The original mains connector (Fluke 2109-222612) is a Switchcraft AC3G.
It mates with PH-163. Belden/Volex #17280 power cord but no longer available.

I don't know how you can rework the rear panel cutout without a lot of vibration and metal shavings and risk trashing the instrument. A sheet metal nibbler can work really well instead.
 

Online OverspeedTopic starter

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Re: Fluke AC DC Differential Voltmeter 893A ? Main plug old style ??
« Reply #7 on: January 24, 2025, 07:44:18 pm »
The leads for the PH163 type connector are only really available as new-old-stock or used, Sphere still have one in stock under the HP tab as "HP old style power cord" https://www.sphere.bc.ca/type/hp/ , they turn up on feeBay occasionally, but easier to find over in the US.

There is also some 3DP thing on the web too, I don't like the connector sockets chosen for that.

I'm not a fan of the IEC C5, C6 connectors either, they are often very poor quality and current rating is only 2.5A, which could be an issue for those in the US.

David

Hello
thanks for the link interesting source of old HP equipment
as that now 50 years plastic I prefer to go with a safe solution and also be able to use cheap available AC lead

regards
OS
 

Online factory

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Re: Fluke AC DC Differential Voltmeter 893A ? Main plug old style ??
« Reply #8 on: January 24, 2025, 07:46:55 pm »
There are plenty out there at high prices, often advertised for ancient jukeboxes & synths, this one looks so new I'm convinced they must be making them somewhere, or someone hoarded them to sell for profit. https://reverb.com/uk/item/77906412-wurlitzer-200-arp-2600-oberheim-fvc-1-4-voice-ac-power-cord-ph163

Cable is labelled "Tai Wire & Cable Co." I don't recognise the logo on the NEMA plug, wonder if anyone in Japan knows the source of these new power leads? It's not Volex (aka Belden) or Alpha who made them before.

P.S. they are not all 50 years old, the last Volex pdf I found was dated 2007, Alpha one is from 2005.
Attached below are the various pdf datasheets I've found over the years.

David
« Last Edit: January 24, 2025, 08:04:16 pm by factory »
 

Offline floobydust

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Re: Fluke AC DC Differential Voltmeter 893A ? Main plug old style ??
« Reply #9 on: January 24, 2025, 08:03:30 pm »
Tiantai Cable (Ningbo) Co., Ltd.
 
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Online factory

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Re: Fluke AC DC Differential Voltmeter 893A ? Main plug old style ??
« Reply #10 on: January 24, 2025, 08:23:46 pm »
Thanks, someone must have got Tiantai to make a batch of custom cables then, as they haven't got it listed on their webshop, well I can't see it under the US leads.

David
 


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