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Voltcraft Energy logger 4000
Measurement and logging of voltage(V), current(A), frequency(Hz), Power consumption (W, also VA, and cos Phi),
currently/min/max, energy consumption total, in payment units, devided into days, monthly and yearly forecast,
memory for half a year logging, SD card for data transfer to a PC, PC software with graphing.
Here some measurements.
Tesla Brno
BM 518 given out to Jan H.
Czech rep., tranzistor multimeter. With probe voltage till 2GHz.
Mastech HY 1803D
AC 230V to DC 0-18V, 3A power supply. 9 x 16 x 22 cm. Transistor on the cooler: 2N3055.
ELV DPS 9000 M
Double-Power-Supply 2 x 0-30 V / 0-2 A
Provides two galvanically isolated output voltages in the range of 0 to 30 V / 2 A, which can be used both separately and in series or parallel connection. For control purposes LM358 are used.
ASWO Diagnose System - after separation and some work over of power parts.
1. Separation transformer
2. Power supply
ELV DTG 402
For testing multimeters. Power supply: 13-18 V DC / 200 mA.
Voltage DC | ±0,1% | 0,1 V ±0,7% | 1 V | 10 V | ||
---|---|---|---|---|---|---|
AC | ±1,5% | 0,1 V | 1 V | 3 V | ||
Current DC | ±0,5% | 1 mA | 10 mA | 100 mA | ||
AC | ±2% | 1 mA | 10 mA | 100 mA | ||
Resistance | ±1% | 100 Ω | 1 kΩ | 10 kΩ | 100 kΩ | 1 MΩ |
Capacitance | ±5% | 100 pF | 1 nF | 10 nF | 100 nF | 1 µF |
AEG Optimator. For R, C and R-C combination.
The capacitors are pretty inaccurate. The 6.8 µF of this device is defective.
Also the 10 kΩ linear Potentiometer is not OK.
There were succesors of this device
Optimator 2 and Optimator 3.
Optimator and Optimator 3 side by side.