Fluke 179 1.5mA battery current in sleep mode. - Page 1
Forum section: electronics / repair

author: skripach
author_rank: Newbie
timestamp: July 17, 2018, 05:51:41 pm
content: My Fluke 179 has 1.5mA battery current in sleep mode(after 20 min). Is it normal? How can I fix this?

author: mzacharias
author_rank: Frequent Contributor
timestamp: July 17, 2018, 11:38:19 pm
content: Not normal, I wouldn't think. If it has a backup supercapacitor in there, I would suspect that.The Original 87's, 85's, 83's ran about 330uA in sleep mode if I recall correctlyThe 87III about the same,The 85III had a bug which I have documented showing an initial 345uA or so, then climbing back up to about 800uA, depending on battery condition.I confirmed this with a second 85III, and I've heard others with this issue, so it was a definite bug.The 87V is remarkable at around 35uA in sleep mode.

author: Jasonbit
author_rank: Regular Contributor
timestamp: July 17, 2018, 11:52:18 pm
content: This means on standby the equipment will consume the battery more faster? To solve this issue the user should remove the batteries?Thanks

author: coromonadalix
author_rank: Super Contributor
timestamp: July 18, 2018, 01:52:21 am
content: on a 175 i did not see any super capacitorEDIT just saw this :https://www.eevblog.com/forum/testgear/fluke-179-teardown-photos/Re Edit and here too :https://www.eevblog.com/forum/repair/service-manual-fluke-179/

author: skripach
author_rank: Newbie
timestamp: July 18, 2018, 04:34:43 am
content: The device does not have a supercapacitor. In the operating mode it seems to work well, the current is about 2 - 2.5 mA, the problem is only in sleep mode. Any ideas?

author: mzacharias
author_rank: Frequent Contributor
timestamp: July 18, 2018, 09:42:34 pm
content: Perhaps inquire with Fluke. That model should be covered by their lifetime warranty. As I understand it, they don't enforce the thing about being the original owner; I would suggest just saying your boss bought it for you at your old job - no receipt available.However, make sure you give a REALLY good problem description. If the meter "appears" to work properly on a cursory examination, you are likely to get itback exactly as you sent it.That's what happened with my 85III. I sent it back in a second time and they ended up replacing it with an 87V.

author: Bassman59
author_rank: Super Contributor
timestamp: July 18, 2018, 09:59:19 pm
content: Quote from: Jasonbit on July 17, 2018, 11:52:18 pmI have a 179 at home and a 175 at the office.I've changed the battery in the 175 at the office maybe three times in the 12 or so years I've had the meter. It gets used on a regular basis and I can't say I'm all that good with turning it off.I change the battery in the 179 at home yearly and it doesn't get nearly the use as the one at work.I've never understood why.

author: retiredcaps
author_rank: Super Contributor
timestamp: July 19, 2018, 07:06:15 am
content: Quote from: Bassman59 on July 18, 2018, 09:59:19 pmDiscussed athttp://www.antiqueradios.com/forums/viewtopic.php?f=8&t=264761

author: Terry01
author_rank: Frequent Contributor
timestamp: July 19, 2018, 08:03:59 am
content: Im doing some tests on a 177 just now and will post pics soon,,,,,,well,,,,,if this 177 ever goes to sleep so I can measure the draw then! Been waiting AGES!!Will post soon....

author: Jasonbit
author_rank: Regular Contributor
timestamp: July 19, 2018, 08:11:50 am
content: To test if the multimeter consume on standby you need tear down the equipment, right?

author: Terry01
author_rank: Frequent Contributor
timestamp: July 19, 2018, 09:27:17 am
content: Fluke 177 in sleep mode!What a PITA to get a photo to fit!!

author: Terry01
author_rank: Frequent Contributor
timestamp: July 19, 2018, 09:30:27 am
content: I took photo's of all stages of sleep to working to OFF. Damn site won't let me post unless I chop them to bits. I have a few so if you want to see a certain stage just ask and I will post that 1 pic on it's own.Hope this helps,,,,

author: Jasonbit
author_rank: Regular Contributor
timestamp: July 19, 2018, 09:35:40 am
content: Quote from: Terry01 on July 19, 2018, 09:30:27 amIs you have a google drive or dropbox put the photon in there and share the link

author: Terry01
author_rank: Frequent Contributor
timestamp: July 19, 2018, 11:06:35 am
content: Ok I think that's it?https://photos.google.com/album/AF1QipOie6VAMuTVMQvgSB-Yyl7yC3HSj2n9rkwXQcWO

author: Terry01
author_rank: Frequent Contributor
timestamp: July 19, 2018, 11:08:50 am
content: I didn't know about the google photo thing...thanks for letting me know