atkelar | Fluke 5100B - Part 3 @atkelar | Uploaded August 2024 | Updated October 2024, 9 hours ago.
Workshop Project #34 - Fluke 5100B - Part 3
And now for the conclusion! Part one and two had the disassembly, cleanup, most of the recapping and first power supply tests. No magic smoke! So in this final part I start off with the "isolator board" and a quick function test of the first modules! The first tries are promising, so I use that to explain a bit about the overall concept of the device and how the different modules are connected to make magic on the output.
I only realized after the final edit, that I neglected to mention the "Error mode" (demonstrated at around 24:12); it is to set the output voltage or current up and down until the meter under test shows the requested value. I.e. if the output is set to 100V and the meter reads 101V, you dial down the set voltage in error mode until the meter reads "100" and the second display then tells you: "+1% error".
0:00 Intro / Isolator PCB
1:27 Controller PCB
2:26 Front Panel Painting
4:06 Display Board Mounting / Power Up!
5:15 Low Range DC Tests
6:10 Explanation: Conceptual Overview / DC Voltage Low Range
7:40 Explanation: AC Voltage Low / AC+DC Voltage High Range
8:43 Explanation: Currents / Resistor Values
10:45 Problem: DC 20+ or AC Voltage? / Hex Inverter
12:35 A clue! / Hunting Grounded Phantoms
14:29 Finally! Fixed!
15:50 Buttoning up the Case
17:38 Loading up the Modules / Alignments?
18:45 Reference Voltage Issue
20:25 Shields up! / Wideband Output OK
21:07 IEEE (GPIB) Interface
22:10 IEEE Test
23:07 New Feet! / Final Testing
24:44 Summary / Credits / Outtake
Thanks to Glyphon for a second opinion on the opamp circuit!
Music (in order)
My Train's A Comin' - Unicorn Heads
Nine Lives - Unicorn Heads
Wrong - Dan Henig
Town of 24 Bars - Unicorn Heads
Light Expanse - Unicorn Heads
(YouTube Audio Library)
You can support me on Ko-Fi: ko-fi.com/atkelar
and also on Patreon: patreon.com/Atkelar
and now also here by using the "Super Thanks" feature!
Thanks to everybody who signed up already!
Workshop Project #34 - Fluke 5100B - Part 3
And now for the conclusion! Part one and two had the disassembly, cleanup, most of the recapping and first power supply tests. No magic smoke! So in this final part I start off with the "isolator board" and a quick function test of the first modules! The first tries are promising, so I use that to explain a bit about the overall concept of the device and how the different modules are connected to make magic on the output.
I only realized after the final edit, that I neglected to mention the "Error mode" (demonstrated at around 24:12); it is to set the output voltage or current up and down until the meter under test shows the requested value. I.e. if the output is set to 100V and the meter reads 101V, you dial down the set voltage in error mode until the meter reads "100" and the second display then tells you: "+1% error".
0:00 Intro / Isolator PCB
1:27 Controller PCB
2:26 Front Panel Painting
4:06 Display Board Mounting / Power Up!
5:15 Low Range DC Tests
6:10 Explanation: Conceptual Overview / DC Voltage Low Range
7:40 Explanation: AC Voltage Low / AC+DC Voltage High Range
8:43 Explanation: Currents / Resistor Values
10:45 Problem: DC 20+ or AC Voltage? / Hex Inverter
12:35 A clue! / Hunting Grounded Phantoms
14:29 Finally! Fixed!
15:50 Buttoning up the Case
17:38 Loading up the Modules / Alignments?
18:45 Reference Voltage Issue
20:25 Shields up! / Wideband Output OK
21:07 IEEE (GPIB) Interface
22:10 IEEE Test
23:07 New Feet! / Final Testing
24:44 Summary / Credits / Outtake
Thanks to Glyphon for a second opinion on the opamp circuit!
Music (in order)
My Train's A Comin' - Unicorn Heads
Nine Lives - Unicorn Heads
Wrong - Dan Henig
Town of 24 Bars - Unicorn Heads
Light Expanse - Unicorn Heads
(YouTube Audio Library)
You can support me on Ko-Fi: ko-fi.com/atkelar
and also on Patreon: patreon.com/Atkelar
and now also here by using the "Super Thanks" feature!
Thanks to everybody who signed up already!
