Difference between revisions of "Voltcraft VC-840"

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'''RS232 cable:'''
'''RS232 cable:'''
* See [[Device cables#UNI-T_UT-D01]].
* See [[Device cables#UNI-T_UT-D02]].


'''USB cable:'''
'''USB cable:'''
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'''RS232 cable:'''
'''RS232 cable:'''


See [[Device cables#UNI-T_UT-D01]].
See [[Device cables#UNI-T_UT-D02]].


'''USB cable:'''
'''USB cable:'''
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== Protocol ==
== Protocol ==


The connection to the PC is done using a cable which converts the optical signal (IR) on the multimeter to RS232.
See [[Multimeter_ICs#Fortune_Semiconductor_FS9721_LP3]].


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 [http://www.produktinfo.conrad.com/datenblaetter/100000-124999/123295-da-01-en-RS232_Protocol_VOLTCRAFT_VC840_DMM.pdf short protocol description is also available from Voltcraft/Conrad]. And [http://www2.produktinfo.conrad.com/datenblaetter/100000-124999/121112-da-01-en-Digitalmultimeter_VC840_Schnittstellenp.pdf another one].
 
A [http://www.produktinfo.conrad.com/datenblaetter/100000-124999/123295-da-01-en-RS232_Protocol_VOLTCRAFT_VC840_DMM.pdf short protocol description is available from Voltcraft/Conrad]. And [http://www2.produktinfo.conrad.com/datenblaetter/100000-124999/121112-da-01-en-Digitalmultimeter_VC840_Schnittstellenp.pdf another one].
 
TODO: Optional USB cable.


== Resources ==
== Resources ==

Revision as of 03:33, 2 November 2012

Voltcraft VC-840

The Voltcraft VC-840 is a 4000 counts, CAT IV (600V) handheld digital multimeter with RS232 or USB connectivity.

Hardware

Multimeter:

RS232 cable:

USB cable:

Photos

Multimeter:

RS232 cable:

See Device cables#UNI-T_UT-D02.

USB cable:

See Device cables#UNI-T_UT-D04.

Protocol

See Multimeter_ICs#Fortune_Semiconductor_FS9721_LP3.

A short protocol description is also available from Voltcraft/Conrad. And another one.

Resources