2.2.8. Frequency measurement
Range / Accuracy / Resolution
10 Hz / ±(0.1%+5) / 0.001 Hz
100 Hz / ±(0.1%+5) / 0.01 Hz
1 kHz / ±(0.1%+5) / 0.1 Hz
10 kHz / ±(0.1%+5) / 1 Hz
100 kHz / ±(0.1%+5) / 10 Hz
1 MHz / ±(0.1%+5) / 100 Hz
Input sensitivity: 1,5VRMS
Over load protection: 250V DC or AC peak value (within 10 seconds)
2.2.9. Diode and on-off test
Value displayed: Forward voltage drop of diode
Testing condition: Forwrd DCA is approx. 1mA, the backward voltage is approx. 3V
Value displayed:Buzzer sounds, the resistance is less than (50 ± 20) Ω
Testing condition: Open voltage is approx. 3V
Overload protection: DC or AC250V peak value.
Warning: It’s forbidden to input voltage value in this range for the sake of safety!
2.2.10. Temperature
Range / Accuracy / Resolution
(-20 1000) ℃ / <400°C 1. 0%+5) / 1 ℃
≥400°C±(1. 5%+15)
CAUTION: do not input voltage at this range!
