Difference between revisions of "Voltcraft M-4650CR"

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'''Multimeter''':
'''Multimeter''':
The photos are showing the Metex M-4650CR, the Voltcraft only has a different brand label.


<gallery>
<gallery>
File:Metex M4650CR front.JPG|<small>Device, front</small>
File:Voltcraft m4650cr.png|<small>Device, front</small>
File:Metex M4650CR back.JPG|<small>Device, back</small>
File:Metex M4650CR side.JPG|<small>Device, side</small>
File:Metex M4650CR poweron.JPG|<small>Device, display self test on power on.</small>
File:Metex M4650CR open.JPG|<small>Device opened</small>
File:Metex M4650CR fuse.JPG|<small>Device opened, fuse section</small>
</gallery>
</gallery>


Revision as of 16:55, 1 January 2014

Voltcraft M-4650CR
Voltcraft m4650cr.png
Status supported
Source code serial-dmm
Counts 20000
IEC 61010-1 —
Connectivity RS232
Measurements voltage, current, hFE, logic, capacitance, frequency, resistance, continuity, diode
Features hold, relative, min/max, bargraph
Website conrad.de

The Voltcraft M-4650CR is a 20000 counts, handheld digital multimeter with RS232 connectivity.

It is a rebadged Metex M-4650CR.

Hardware

Multimeter:

  • Main IC: Metex 89CR (markings: "Metex 89CR 1146 1G1")
  • 8-line to 3-line priority encoder: 2x 74HC148A (markings: "T 91 16H 74HC148A")
  • 2x CD4010BE
  • T 91 05H 74HC08A
  • M 14027B XXEW045
  • M 14512B XXGF111
  • TC 7129CKW 9129BCJ
  • 2x B6 LTV817
  • Fuse: 2A/250V fast (5x20mm) (for the A jack; the 20A jack is unfused!)

RS232 cable:

Photos

Multimeter:

  • Device, front

Cable:

See Device_cables#Metex_5-pin_RS232_cable.

Protocol

See Multimeter ICs#Alternative_Protocol.

Resources

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