Difference between revisions of "Voltcraft VC-820"
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'''RS232 cable:''' | '''RS232 cable:''' | ||
See [[ | See [[Multimeter cables#UNI-T_UT-D01]]. | ||
'''USB cable:''' | '''USB cable:''' | ||
See [[Multimeter cables#UNI-T_UT-D04]]. | |||
== Protocol == | == Protocol == | ||
Revision as of 00:52, 17 July 2012
The Voltcraft VC-820 is a 4000 counts, CAT III (1000V) / CAT IV (600V) handheld digital multimeter with RS232 or USB connectivity.
See Voltcraft VC-820/Info for more details (such as lsusb -vvv output) about the device.
Hardware
TODO.
Photos
Multimeter:
LCD
RS232 cable:
See Multimeter cables#UNI-T_UT-D01.
USB cable:
See Multimeter cables#UNI-T_UT-D04.
Protocol
The connection to the PC is done using a cable which converts the optical signal (IR) on the multimeter to RS232.
The serial connection uses 2400 baud (hardcoded, cannot be changed) with 8n1 settings. The multimeter transmits 14-byte data packets periodically, the host can not send any commands whatsoever, only read the transmitted data.
A short protocol description is available from Voltcraft/Conrad.