| Electronics > Metrology |
| Fluke 742 resistor hardware clone ? any interest ? |
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| Overspeed:
Hello A screen print of my 742 enclosure , as I have 150x150 mm 6082 tube I have designed twin resistor value enclosure to group 0.1 and 1 Ohm or use two same value side by side one very low tempco and one other ''general purpose'' a lower cost or with higher current value There is one central temp sensor well . the box is set to add four post in a raw to use the the resistors as divider front milled pockets are made to install stickers not flush so protected Internal is a clone a the Fluke 724 with PTFE support on aluminium plate , perhaps SS304 as I want to avoid aluminium conversion surface treatment as alodine to keep price low. Regards OS |
| Overspeed:
Hello Progress . the rear lid I plan to use polystyrene ball as insulation Regards OS |
| mendip_discovery:
does that not cause static electricity? |
| Overspeed:
--- Quote from: mendip_discovery on January 02, 2025, 07:59:12 pm ---does that not cause static electricity? --- End quote --- Hello yes ,but antistatic polystyrene exist https://productpackagingsupplies.com/Category/Anti-Static-Polystyrene-Packing-Peanuts other method is to increase thermal inertia by using block of metal all around the resistors . zlymex on this forum have a different assessment I link a screen-print Regards OS |
| Overspeed:
Hello As technical solution I go with a clone of IET solution ,that allow a wide range of setup and drilling is easy even with a hand drill. I link two pictures from Zlymex forum member Regards OS |
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