Voltcraft VC-950¶
Voltcraft VC-950¶
| Status | in progress |
| Source code | appa-dmm |
| Counts | 100000/10000 |
| IEC 61010-1 | CAT III (1000V) / CAT IV (600V) |
| Connectivity | Infrared (USB/RS232) |
| Measurements | voltage, frequency, period, duty cycle, resistance, continuity, diode, capacitance, current, temperature |
| Features | autorange, data hold, auto hold, peak hold, min/max/avg, relative (%/delta), level (dB/dBm), automatic backlight, true-rms, data logging, auto store, auto-v, ac+dc, VFD, secondary display value |
| Website | conrad.com |
The Voltcraft VC-950 is a 100000/10000 counts, CAT IV (600V) / CAT III (1000V) dual display handheld digital multimeter with Serial/USB connectivity.
It is based on the APPA 505, See also: APPA Multimeters.
The driver supporting these APPA-based devices ("appa-dmm" in sigrok) has been created and will be included in mainline sigrok once it passes acception (see developement repository github.com/Cymaphore/libsigrok branch appa-dmm).
Hardware¶
- ADC IC: CYRUSTEK ES51066A
- Fuses: Current range 10A: Amp rating: 11A, Voltage rating: 1kV, Interrupting rating: 20kA, Opening: Fast acting, Size: 10mm x 38mm
- Current range 400mA: Amp rating: 0.44A, Voltage rating: 1kV, Interrupting rating: 10kA, Opening: Fast acting, Size: 10mm x 34.9mm
- Power supply: 4 x IEC LR6 1.5V (works fine with IEC HR6 1.2V)
Photos and Teardown¶
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[](./img/Voltcraft_VC-950_-_01_-_Front.png)
Voltcraft VC-950
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[](./img/Voltcraft_VC-950_-_02_-_SmuView.png)
VC-950 connected to SmuView visualizing readings from the power grid
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[](./img/Voltcraft_VC-950_-_03.jpg)
Measuring voltage and frequency from the power grid
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[](./img/Voltcraft_VC-950_-_04_-_Display-Light.jpg)
Display with automatic backlight on
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[](./img/Voltcraft_VC-950_-_05_-_No_Sleeve.jpg)
Protective sleeve removed
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[](./img/Voltcraft_VC-950_-_06_-_Rear.jpg)
Rear view
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[](./img/Benning_MM_12_-_08_-_Data_cable.jpg)
Included data cable (APPA IC-300U)
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[](./img/Voltcraft_VC-950_-_Teardown_-_01.jpg)
Teardown 1/10
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[](./img/Voltcraft_VC-950_-_Teardown_-_02.jpg)
Teardown 2/10
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[](./img/Voltcraft_VC-950_-_Teardown_-_03.jpg)
Teardown 3/10
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[](./img/Voltcraft_VC-950_-_Teardown_-_04.jpg)
Teardown 4/10
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[](./img/Voltcraft_VC-950_-_Teardown_-_05.jpg)
Teardown 5/10
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[](./img/Voltcraft_VC-950_-_Teardown_-_06.jpg)
Teardown 6/10
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[](./img/Voltcraft_VC-950_-_Teardown_-_07.jpg)
Teardown 7/10
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[](./img/Voltcraft_VC-950_-_Teardown_-_08.jpg)
Teardown 8/10
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[](./img/Voltcraft_VC-950_-_Teardown_-_09.jpg)
Teardown 9/10
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[](./img/Voltcraft_VC-950_-_Teardown_-_10.jpg)
Teardown 10/10
Resources¶
Photos¶
Voltcraft Vc 950 03
Voltcraft Vc 950 Teardown 01
Voltcraft Vc 950 06 Rear
Voltcraft Vc 950 Teardown 04
Voltcraft Vc 950 04 Display Light
Voltcraft Vc 950 Teardown 08
Voltcraft Vc 950 Teardown 10
Voltcraft Vc 950 Teardown 05
Voltcraft Vc 950 02 Smuview
Voltcraft Vc 950 Teardown 06
Voltcraft Vc 950 Teardown 07
Voltcraft Vc 950 Teardown 03
Voltcraft Vc 950 01 Front
Voltcraft Vc 950 Teardown 09
Benning Mm 12 08 Data Cable
Voltcraft Vc 950 05 No Sleeve
Voltcraft Vc 950 Teardown 02