PeakTech 4370
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 | |
| Status | supported |
|---|---|
| Source code | serial-dmm |
| Counts | 2000 |
| IEC 61010-1 | CAT II (1000V) |
| Connectivity | RS232 |
| Measurements | voltage, current, frequency, hFE, logic, continuity, diode, resistance, temperature, capacitance |
| Features | data hold, min/max, 10 reading memory |
The PeakTech 4370 is a 2000 counts, CAT II (1000V) handheld digital multimeter with RS232 connectivity.
This is a rebadged Metex M-3640D multimeter.
Hardware
- 3 1/2 digit ADC with bandgap reference: Maxim MAX130CPL (datasheet) (marking: "Maxim MAX130CPL 0138-3 C10039")
- ?: Metex KS57C2016 (possibly a Samsung KS57C2016 4-bit microcontroller with custom Metex firmware?) (marking: "Metex 95D3 KS57C2016-13 013D 95D3")
- ?: 4.1856MHz crystal (?)
- ?: 14027B PBD005
- ?: 2x 0138 817B Y
- ?: OP-07 1035B JRC
- ?: Intersil ICM7555CBA (datasheet) (marking: "7555 CBA P136FAM")
- Quad analog switch/quad multiplexer: ON Semiconductor 14066B (datasheet) (marking: "14066B PBV139")
- ?: New Japan Radio (JRC) NJU4011B (marking: "NJU4011B JRC A1015H")
- Low level, True RMS-to-DC converter: Analog Devices AD636JH (datasheet) (marking: "AD 636JH 0122")
Photos
Multimeter:
TODO.
RS232 cable:
See Device_cables#Metex_5-pin_RS232_cable.
Protocol
See Multimeter_ICs#Metex_14-byte_ASCII.
Resources
TODO.