Products > Test Equipment
Multimeter fuses
PA4TIM:
The 440mA from my Agilent was open, I noticed it when I wanted to charge the meter. No spare. I almost never use the meter for current and I only use it in my lab for repair work. I do not know why it blew because I have not used it for current since the last charging (about 1 to 2 times a week)
But I needed the meter so I took the bushman fuse apart, Took two fuseholders and used the bajonet caps. I turned them on a lathe to the right size. Then mounted and soldered them in the removed caps of the bushman fuse. I pushed a 500mA sand filled fuse in it and then pushed in the caps on the bushman body so now I have a fuse that looks like a bushman with a normal cheap replaceable fuse inside.
Yes, I know it is not as save but for my use it is good enough. By the way ever looked what fuses are used in fi the Keithley 2000 benchmeters ?
MacMeter:
--- Quote from: nanofrog on February 14, 2017, 11:59:42 pm ---
--- Quote from: MacMeter on February 14, 2017, 12:46:42 am ---The first fuse you linked is 500 mA, not 400 mA, so that's not the spec the manual calls for. I'm not electronically qualified to know if the small 100 mA difference is acceptable?
--- End quote ---
Ideally, you would want to stick to 400ma/440ma as the meter's spec.
Siba's P/N for such a beast is 7017240.0,4. Sadly, it seems no one carries them; not even as a special order. :palm: The 500ma version is readily available however, and it may have to do (it would still protect the user).
The only other thing I can think of, is getting them directly from Siba or Brymen.
--- End quote ---
I called Siba (post #55). They don't sell direct, but to distributors. I'll try, but I'd bet Brymen is going to be another dead end in the quest to find the "UNICORN FUSE".
nanofrog:
--- Quote from: MacMeter on February 15, 2017, 12:55:19 am ---I called Siba (post #55). They don't sell direct, but to distributors. I'll try, but I'd bet Brymen is going to be another dead end in the quest to find the "UNICORN FUSE".
--- End quote ---
Hopefully Brymen will surprise you, and sell you what you need (Keysight carries replacement parts & sell to individuals for example).
If not, you'll have to substitute either the 500mA previously linked, or a larger fuse (change the tabs to 10 x 38mm). The trick is to match the breaking voltage and speed (FF) to keep you safe.
mrm2007:
--- Quote from: nanofrog on February 14, 2017, 11:59:42 pm ---
--- Quote from: MacMeter on February 14, 2017, 12:46:42 am ---The first fuse you linked is 500 mA, not 400 mA, so that's not the spec the manual calls for. I'm not electronically qualified to know if the small 100 mA difference is acceptable?
--- End quote ---
Ideally, you would want to stick to 400ma/440ma as the meter's spec.
Siba's P/N for such a beast is 7017240.0,4. Sadly, it seems no one carries them; not even as a special order. :palm: The 500ma version is readily available however, and it may have to do (it would still protect the user).
The only other thing I can think of, is getting them directly from Siba or Brymen.
--- End quote ---
Hi,
I'm not sure if they fit into brymen but you could check these fluke fuses:
http://www.mouser.com/ProductDetail/Fluke/FUSE-44AMA-1000VB5/?qs=sGAEpiMZZMsIz3CjQ1xegYXux9D%252bcUvtHGMXtnTQQJ0%3d
Pack of 5 for 25.3$ (Single @ 9.6$)
3141592:
--- Quote from: MacMeter on February 15, 2017, 12:55:19 am ---
--- Quote from: nanofrog on February 14, 2017, 11:59:42 pm ---
--- Quote from: MacMeter on February 14, 2017, 12:46:42 am ---The first fuse you linked is 500 mA, not 400 mA, so that's not the spec the manual calls for. I'm not electronically qualified to know if the small 100 mA difference is acceptable?
--- End quote ---
Ideally, you would want to stick to 400ma/440ma as the meter's spec.
Siba's P/N for such a beast is 7017240.0,4. Sadly, it seems no one carries them; not even as a special order. :palm: The 500ma version is readily available however, and it may have to do (it would still protect the user).
The only other thing I can think of, is getting them directly from Siba or Brymen.
--- End quote ---
I called Siba (post #55). They don't sell direct, but to distributors. I'll try, but I'd bet Brymen is going to be another dead end in the quest to find the "UNICORN FUSE".
--- End quote ---
The guys at Brymen tend to be very helpful, I'm sure you'll get an answer.
Quick googleing led me to this, says it's available, but I've never dealt with them:
https://www.welectron.com/SIBA-701724004-Sicherung-63x32mm-04A-1000V
I would just get the 700VAC 400mA version though, from TME. Or the 500mA 1kV one. Just keep the ratings in mind when using it, it's not that big of a deal for hobby uses.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version