Voltcraft VC-96
 | |
| Status | supported |
|---|---|
| Source code | serial-dmm |
| Counts | 4000 |
| Connectivity | RS232 |
| Measurements | voltage, capacitance, continuity, diode, frequency, current, |
| Features | autorange, hold, relative, min-max, hfe, bargraph |
| Website | kappenberg.com |
The Voltcraft VC-96 is an 4000 counts handheld, digital multimeter with RS232 (D-sub, DB-25 connector) connectivity.
Hardware
Photos
Device, top
Device, bottom
Device, left
PCB, top
PCB, bottom
Main chip
Rectifier
Chip, top
Chip, left
Chip, LED
Chip
Chip
USB modification
Micro-USB instead of DB-25
Modification schematics
Protocol
The device sends always (without request) about 4 telegrams per second with 1200 baud, 8N2 over the LED through the case.
The location of the LED is marked on the back (the little circle above the screw).
The converter originally has a RS232 25pin sub-d and needs an 9VDC power supply, but can be modified with a little TTL serial to USB board.
The handling remains the same except using /dev/ttyUSBx instead of /dev/ttySx.
Example packets:
ACV 0.0 V\r\n ACV 0.00 V\r\n DCV 00uV\r\n DCV 0.0 V\r\n DCV- 0.1mV\r\n OHM OL M<0xEA>\r\n DIO OL V\r\n BEP OL K<0xEA>\r\n DIO OL V\r\n DCA 00uA\r\n hfe 0.0 \r\n DCA 02uA\r\n DCA 0.0mA\r\n DCA 00mA\r\n ACA 761mA\r\n ACA 0.0mA\r\n
The device does not send packets in CAP and in FREQ mode.