PeakTech 4390A
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 | |
| Status | supported |
|---|---|
| Source code | serial-dmm |
| Counts | 4000 |
| IEC 61010-1 | — |
| Connectivity | RS232 |
| Measurements | voltage, current, frequency, hFE, logic, continuity, diode, resistance, temperature, capacitance, power |
| Features | true-rms, signal-out, 3 sub-displays, backlight, bargraph, auto hold, data hold, range hold, min/max, relative offset, comparision, 10 reading memory |
The PeakTech 4390A is a 4000 counts handheld digital multimeter with RS232 connectivity.
This is a rebadged Metex M-3860M multimeter.
Note: This is not the same device as the PeakTech 4390, despite the very similar name.
Hardware
Photos
Multimeter:
Device, top
Device, bottom
PCB, shielding
PCB, bottom
PCB, top 1
PCB, top 2
PCB, top 3
Power adapter
RS232 cable:
Serial cable
See Device_cables#Metex_5-pin_RS232_cable (Version 2).
Protocol
See Multimeter_ICs#Metex_14-byte_ASCII.
The device sends 4 * 14 bytes. The first 14 bytes represents the main display and then the three sub displays from left to right (left, middle, right).