Products > Test Equipment
Poll: Handheld meters with minimally-annoying auto power off (APO)
Gyro:
The UT61E does not APO because its optical data output is permanently enabled, whether its interface is inserted or not. APO can be added with modifications to both the meter and the interface (extra IR LED and phototransistor).
RoGeorge:
--- Quote from: bdunham7 on March 30, 2023, 07:55:14 pm ---none of the meters will actually go back to exactly what they were doing
--- End quote ---
That is incredibly dumb, indeed. A 1 million writes eeprom like the ones in the TV costs peanuts. Could write after each button pressed and never wear out.
Another one is the impossibility to disable the warning for a plugged cord in the A socket when switching to volts. Well, I don't have two cords and keep switching them, I have 3 different cords and I would like to keep them plugged at all times. My A cord has a different handle, no way to mix A and V cords by accident.
bdunham7:
--- Quote from: RoGeorge on March 30, 2023, 08:46:31 pm ---Another one is the impossibility to disable the warning for a plugged cord in the A socket when switching to volts. Well, I don't have two cords and keep switching them, I have 3 different cords and I would like to keep them plugged at all times. My A cord has a different handle, no way to mix A and V cords by accident.
--- End quote ---
I had a setup like that on a meter I mostly used for automotive. Then one day I was checking a wall outlet in an difficult-to-reach area in an awkward position and of course with an unfused Harbor Freight meter. :o
I can't imagine a manufacturer adding either of your feature requests to any of their products. Why would they want to decrease reliability and increase liability to implement features the vast majority of users wouldn't even know were there?
sonpul:
--- Quote from: bdunham7 on March 30, 2023, 07:55:14 pm --- Try it--set the meter to the VDC dial setting and then use the blue button to select AC+DC, then let it power off. When it comes back on, it will be back to plain VDC.
--- End quote ---
BM789 remembers both AC+DC and all other additional modes on the selector. And after the usual shutdown by the selector and after autopower and after turning on the button after sleep. Everything from the selector remembers.
From the buttons above the selector, for example, Range, AutoHold, Rec does not remember. But this is not necessary.
sonpul:
--- Quote from: Gyro on March 30, 2023, 08:41:08 pm ---The UT61E does not APO because its optical data output is permanently enabled, whether its interface is inserted or not. APO can be added with modifications to both the meter and the interface (extra IR LED and phototransistor).
--- End quote ---
I had UT61E. If you activate APO on UT61E, it beeps unpleasantly, does not remember the selected mode.
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