Fluke 789 - Page 1
Forum section: electronics / testgear

author: Ultrasniper
author_rank: Newbie
timestamp: February 19, 2021, 06:43:41 pm
content: Anyone has Fluke 789 Service Manual? Thanks

author: Arhigos
author_rank: Regular Contributor
timestamp: February 26, 2021, 09:35:37 am
content: https://dam-assets.fluke.com/s3fs-public/789_____cmeng0200.pdf

author: Ultrasniper
author_rank: Newbie
timestamp: February 28, 2021, 12:48:43 pm
content: Thank you very much, but i looking for a service manual, i hope inside this manual I will find the 789 IR port CPL commands. Thanks again

author: Arhigos
author_rank: Regular Contributor
timestamp: March 01, 2021, 12:07:14 am
content: here is link for remote interface commands and communication specifications (789 and 189 using same protocol)https://drive.google.com/file/d/0BxD05xrbn-k6dnpZcmhTZ2hMREU/edit

author: Ultrasniper
author_rank: Newbie
timestamp: March 01, 2021, 01:13:58 am
content: Thank you very much Arhigos. The 789 is a test device half multimeter and half loop calibrator. Then, the half multimeter part respond in the same way to the 189 commands, but the loop calibration part has is own commands ( I believe) and not so popular than multimeters commands. If one of you has an idea in which document may the information explicit, I’ll appreciate the data indeed thanks a lot. Regards.

author: Arhigos
author_rank: Regular Contributor
timestamp: March 01, 2021, 01:57:14 am
content: i don't think that possible to adjust current output thru ir

author: boggis the cat
author_rank: Regular Contributor
timestamp: March 01, 2021, 06:07:04 am
content: Quote from: Ultrasniper on February 19, 2021, 06:43:41 pmThe calibration manual (and supplement) cover adjustment:https://www.fluke.com/en/product/calibration-tools/ma-loop-calibrators/fluke-789Select "Resources" > "Manuals".There isn't a service manual publicly available, however these instruments tend to be board-swap level 'repair' nowadays.

author: Ultrasniper
author_rank: Newbie
timestamp: March 01, 2021, 10:25:05 am
content: Thank you Boggis, my 789 is full functional. The 789 is part multimeter and part loop calibrator. I’m looking for the IR port CPL protocol commands for the 789 loop calibrator part, 4-20 mA current source and device simulation. The traditional 87 IV IR remote CPL protocol commands do no work in the loop calibrator part of the 789. May be the service manual give me some information.

author: Arhigos
author_rank: Regular Contributor
timestamp: March 01, 2021, 12:31:58 pm
content: Quote from: Ultrasniper on March 01, 2021, 06:00:21 amYeah, i know what you talking about. 189 has SF <1-10> command to emulate buttons, which doesn't work on 789. I think because both 787 and 789 got serial interface only for calibration purposes and not for remote control.725 might support remote control and 754 definitely will do remote procedures as well as generating as-found as-left tests

author: Ultrasniper
author_rank: Newbie
timestamp: March 01, 2021, 03:05:03 pm
content: That’s right, 725 a 754 are fully suitable for remote control. Anyway if somebody knows something about 789 CPL commands will be appreciate.

author: boggis the cat
author_rank: Regular Contributor
timestamp: March 02, 2021, 05:56:11 am
content: Quote from: Ultrasniper on March 01, 2021, 03:05:03 pmThe codes are 'Fluke confidential'. They also vary depending upon the firmware, with "1.xx" differing from "2.xx".I figured out most of the codes for the firmware 1.01 units years ago by finding a partial MET/CAL procedure somewhere. I could not figure out how the firmware 2.xx units worked because it's less obvious.Unfortunately, this information is all effectively under NDA. You can contact Fluke if you want to add another complaint to the pile about their dumb policy of obscuring this information.You may get lucky with an internet search for "789 remote commands" or such. This –https://www.mrexcel.com/board/threads/readstring-visa-error-timeout-issue.1107315/– is a person trying to get a Fluke 187 working using this information:www.pewa.de/DATENBLATT/DBL_FL_FL187-9-89IV_BEFEHLSSATZ_ENGLISCH.PDFEdit:The first link on this page should help:https://sigrok.org/wiki/Fluke_287/289Some of this is easy to piece together – some of it was just too time-consuming so I gave up trying to get there 'blind'.

author: Ultrasniper
author_rank: Newbie
timestamp: March 02, 2021, 07:06:07 am
content: I contacted Fluke Argentina and then Flike Europe, bot of them refused open the information to general people.I’m do not questioning Fluke about their confidentiality policies.There must be an ex Fluke worker, with a lot of papers at home, and may be, one of those has the information i need with all the explanation of the full set of 789 CPL protocol Commands. I will be patient, somebody is going to appear! Thank a lot. Begards

author: EJAP
author_rank: Newbie
timestamp: June 03, 2024, 06:02:28 pm
content: Are you still working on this. I think I can help you to set mA output thought the IR interface.If you are interested, please horn