Metex ME-21
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 | |
| Status | supported |
|---|---|
| Source code | serial-dmm |
| Counts | 2000 |
| IEC 61010-1 | CAT II (1000V) |
| Connectivity | RS232 |
| Measurements | voltage, resistance, continuity, diode, current, frequency, logic |
| Features | bargraph, data hold, Min/Max |
| Website | tequipment.net |
The Metex ME-21 is a 2000 counts, CAT II (1000V) handheld digital multimeter with RS232 connectivity.
Hardware
TODO.
UM7106 3 1⁄2 Digit A/D Converter
Isolated RS232 Port, needs "active" USB RS232 Adapter or native RS232 Port.
Photos
Multimeter:
RS232 Port
PCB Top
PCB Bottom
PCB Controller
Protocol
See Multimeter_ICs#Metex_14-byte_ASCII for the DMM IC protocol.
Resources
TODO.