RS Meters

[Paul Schreiber]

Now you've gone and called my baby ugly! <grin>

As the designer of most of the RS meters, the differences in them are as follows:

1) functions left out: the 2-chip set (uP + ASIC) is the same for all of them

2) resistor tolerance on the front-end divider network. the higher-end meters use 0.25% or 0.1% resistors, the 
lower ones use 0.5%. My personal meter is a 'hacked' version with 0.05% resistors!!

3) band-gap reference trim yes/no. There is a temperature-compensated voltage reference that is very
close, but trimmed exactly in the higher $$$ meters.

So, if you get the $49 meter, it will be slightly less accurate than the $89/99 one with stuff left off. But the $99
is 95% as accutate as the 'industry standard' Fluke 87 for <1/3rd the cost.

Plus, the DVM ASIC was designed by 2 synthgods: Doug Curtis of CEM fame and yours truely!!!

BTW: the ASIC we designed was awarded 6 patents!!!!!

(OK,  1 and 1/2 synthgods.....)

 'nuff said.

Paul Schreiber
Synthesis Technology