I recently ordered the following panel meter from a Jaycar stockist:
The catalogue describes it as "not just a digital display, but a fully functional high impedance digital panel meter that only requires power to operate. It will measure voltages from 200mV to 500VDC (jumper selectable) and has a maximum count of 1999".
Based on the above description it would be reasonable to expect that the meter would have 5 decadic ranges, namely 200mV, 2V, 20V, 200V, and 500V (2000V), as do all (?) other panel meters and multimeters. But, inexplicably, this meter does not have a 2V range. There doesn't seem to be any logical reason for this because the ranges are selected by a single potential divider - an additional range would have required only an extra resistor and an extra couple of PCB pads.
You can guess which voltage range my application requires. :-(
- Franc Zabkar
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