Difference between revisions of "PeakTech 4390A"

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== Hardware ==
== Hardware ==
'''Main ICs''':
* '''Multimeter IC''': Metex 00M38M03 (markings: METEX / 00M38M03 / 663 / 0411KK002)
* '''A/D Converter''': [https://www.maximintegrated.com/en/products/analog/data-converters/analog-to-digital-converters/MAX134.html Maxim MAX134 3 3/4 Digit DMM Circuit] ([https://datasheets.maximintegrated.com/en/ds/MAX133-MAX134.pdf datasheet])
* '''True RMS Converter''': [http://www.analog.com/en/products/linear-products/rms-to-dc-converters/ad737.html Analog Devices AD737] ([http://www.analog.com/media/en/technical-documentation/data-sheets/AD737.pdf datasheet])
* '''Power Metering IC''': [http://www.sames.co.za/energy-metering-legacy/ Sames SA9102CSA] ([http://www.sames.co.za/wp-content/uploads/pdf/legacy/SA9102C.pdf datasheet])
* '''Voltage Reference 1.2V''': ICL8069 ([https://www.intersil.com/content/dam/Intersil/documents/icl8/icl8069.pdf datasheet]) (markings: CC / 8069 / G301AC)
* '''LCD Controller''': Epson S1D12708F00A1 (markings: EPSON JAPAN / S1D12708F00A1 / F04202336)
'''Miscellaneous ICs''':
* '''Serial EEPROM''': Atmel AT93C46 ([http://www.atmel.com/Images/doc5140.pdf datasheet]) (markings: ATMEL 348 / 93C46)
* '''Optocoupler for RS232''': 2x [http://optoelectronics.liteon.com/en-global/Led/LED-Component/Detail/651/0/LTV-817%20Series Lite-On 817B] ([http://optoelectronics.liteon.com/upload/download/DS-70-96-0013/LTV-8X4%20series%20201509.pdf datasheet]) (markings: L0419 / 817B / Y)
* '''OpAmp''': 2x 2904 ([http://www.njr.com/semicon/PDF/NJM2904_E.pdf datasheet]) (markings: 2904 / 4169B / JRC)
* '''Low Offset Voltage OpAmp''': OP-07 ([http://www.njr.com/semicon/PDF/NJMOP-07_E.pdf datasheet]) (markings: OP-07 / 4051B / JRC)
* '''OpAmp''': NJM062/TL062 ([http://www.njr.com/semicon/PDF/NJM062_NJM064_E.pdf datasheet]) (markings: 062 / 3138B / JRC)
* '''Quad 2-Input NAND Gate''': ON Semi 74HC00A ([https://www.onsemi.com/pub/Collateral/MC74HC00A-D.PDF datasheet]) (markings: HC00A / ON PBK340)
* '''Quad Multiplexer''': ON Semi 14066B ([https://www.onsemi.com/pub/Collateral/MC14066B-D.PDF datasheet]) (markings: 14066B / ON PPM426)
* '''555 Timer''': Intersil ICM7555 ([https://www.intersil.com/content/dam/Intersil/documents/icm7/icm7555-56.pdf datasheet]) (markings: i 7555 / IBA / L044FCL)
* '''Quad 2-Input NAND Schmitt Trigger''': 74HC132D ([https://assets.nexperia.com/documents/data-sheet/74HC_HCT132.pdf datasheet])
* '''Dual Decade Ripple Counter''': 74HC390D ([https://assets.nexperia.com/documents/data-sheet/74HC_HCT390.pdf datasheet])
'''Fuses''':
* 250V, 15A (N65)
* 250V, 800mA


== Photos ==
== Photos ==
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File:Peaktech 4390a metex m-3860m top.jpg‎|<small>Device, top</small>
File:Peaktech 4390a metex m-3860m top.jpg‎|<small>Device, top</small>
File:Peaktech 4390a metex m-3860m bottom.jpg|<small>Device, bottom</small>
File:Peaktech 4390a metex m-3860m bottom.jpg|<small>Device, bottom</small>
File:Peaktech 4390A Metex M-3860M - Shielding.jpg|<small>Big PCB, shielding</small>
File:Peaktech 4390A Metex M-3860M - PCB Bottom.jpg|<small>Big PCB, bottom</small>
File:Peaktech 4390A Metex M-3860M - PCB Top 1.jpg|<small>PCB sandwich, top</small>
File:Peaktech 4390A Metex M-3860M - PCB Top 2.jpg|<small>PCB sandwich, top</small>
File:Peaktech 4390A Metex M-3860M - PCB Big Top Full.jpg|<small>Big PCB, top</small>
File:Peaktech 4390A Metex M-3860M - PCB Big Top Detail.jpg|<small>Big PCB, top detail</small>
File:Peaktech 4390A Metex M-3860M - PCB Small Bottom.jpg|<small>Small PCB, bottom</small>
File:Peaktech 4390A Metex M-3860M - PCB Small Top.jpg|<small>Small PCB, top</small>
File:Peaktech 4390a metex m-3860m power adapter.jpg‎|<small>Power adapter</small>
File:Peaktech 4390a metex m-3860m power adapter.jpg‎|<small>Power adapter</small>
</gallery>
</gallery>
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'''RS232 cable:'''
'''RS232 cable:'''


...
<gallery>
File:Peaktech 4390A Metex M-3860M - Serial Cable.jpg|<small>Serial cable</small>
</gallery>
 
See [[Device_cables#Metex_5-pin_RS232_cable]] (Version 2).


== Protocol ==
== Protocol ==


See [[Multimeter_ICs#Metex_14-byte_ASCII]].
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).


== Resources ==
== Resources ==

Latest revision as of 14:35, 7 October 2017

PeakTech 4390A
Peaktech 4390a metex m-3860m mugshot.png
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

Main ICs:

Miscellaneous ICs:

  • Serial EEPROM: Atmel AT93C46 (datasheet) (markings: ATMEL 348 / 93C46)
  • Optocoupler for RS232: 2x Lite-On 817B (datasheet) (markings: L0419 / 817B / Y)
  • OpAmp: 2x 2904 (datasheet) (markings: 2904 / 4169B / JRC)
  • Low Offset Voltage OpAmp: OP-07 (datasheet) (markings: OP-07 / 4051B / JRC)
  • OpAmp: NJM062/TL062 (datasheet) (markings: 062 / 3138B / JRC)
  • Quad 2-Input NAND Gate: ON Semi 74HC00A (datasheet) (markings: HC00A / ON PBK340)
  • Quad Multiplexer: ON Semi 14066B (datasheet) (markings: 14066B / ON PPM426)
  • 555 Timer: Intersil ICM7555 (datasheet) (markings: i 7555 / IBA / L044FCL)
  • Quad 2-Input NAND Schmitt Trigger: 74HC132D (datasheet)
  • Dual Decade Ripple Counter: 74HC390D (datasheet)

Fuses:

  • 250V, 15A (N65)
  • 250V, 800mA

Photos

Multimeter:

  • Device, top

  • Device, bottom

  • Big PCB, shielding

  • Big PCB, bottom

  • PCB sandwich, top

  • PCB sandwich, top

  • Big PCB, top

  • Big PCB, top detail

  • Small PCB, bottom

  • Small PCB, top

  • 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).

Resources

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