Продавница Ѓ. ПетровОпис
- Volt and frequency
- At 1Vrms input frequency range is from 100Hz to 200kHz, but not very precise
- 1 VAC is 5% up at 10kHz
- Frequency input do not requires a zero crossing.
- Input impedance is 10Mohm on DC and AC, mVDC input impedance will drop to 1Mohm above 3.3V
- Frequency input is a capacitor.
- Current
- 200mA current is protected by soldered SMD fuse.
- 20A current range is unprotected
- Ohm, Continuity, diode and capacitance
- Ohm needs about 1.6s to measure 100ohm
- Ohm is 0.29V open and 0.17mA down to 0.027mA shorted, except 200M range that uses 2.9V and 3uA shorted-
- Continuity is very slow (About 380ms).
- Continuity beeps and a weak red led turns on when resistance is below 66ohm.
- Continuity/Diode range uses 2.9V, max. display is 1.999 at 1.53V with 0.77mA, max. current is 1.62mA shorted
- 10uF takes about 1 seconds to measure.
- 100uF takes about 1 seconds to measure.
- Overload protection is not rated
- Miscellaneous
- Current consumption of meter is 1.2mA.
- Meter works down to 2.8V where it turns off, battery symbol show at 6.7V.
- Reading starts to change around 6.4V and is 50% to high at 3.9V and 100% to high just before it turns off.
- The meter usual need a couple of display update to reach the final value.
- Viewing angle is good.
- Display updates around 3 times/sec
- Power do not automatic turn off.
- Standard probes cannot be pushed very much down.
- Weight is 228g without accessories, but with rubber sleeve and batteries.
- Size is 191 x 89 x 35mm with rubber sleeve.
- Probes
- Probe resistance 92mOhm for one, these probes are not for measuring 10A or 20A.
- Probe wire is soft and 57cm long.
