BBC Goertz Metrawatt M2110

From sigrok
Revision as of 20:03, 18 December 2013 by Matthias Heidbrink (talk | contribs)
Jump to navigation Jump to search
BBC Goertz Metrawatt M2110
Status in progress
Source code serial-dmm
Counts 30000
Connectivity RS232
Measurements voltage, current, resistance, capacitance, temperature, diode, continuity
Features manual range

The BBC Goertz Metrawatt M2110 is a historic (about 1984) 30000 count bench multimeter with RS232 connectivity.

Hardware

RS232 Interface:

  • 150/300/600/1200/2400/4800/9600 baud, configurable via rotary switch
  • 7 data bits
  • No/even/odd parity, configurable via DIP switches
  • 1 or 2 stop bits, configurable via DIP switch
  • Optional CTS handshake, configurable via DIP switch
  • Output intervals 0,66s/10s/1m/10m/1h/manual/remote controlled, configurable via rotary switch
  • Manual output sends value on button Start/Reset pressed.
  • Remote controlled output sends data on CTS set or ENQ sent, configurable via DIP switches
  • Max. 1,5 measurements/s.

RS232 cable:

  • 25 pin "female" connector
  • Null modem cable required (DTE configuration)!

Photos

Protocol

msg := SDDDDDD | 'OVERRNG'  CR LF
S := '-' | ' '
D := '0'..'9'|'.'

Resources