Major tech MT760 Instrukcja obsługi - Strona 12
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the circuit-under-test is conductive (≤10Ω), buzzer makes sound
continuously. When measure voltage or current outrange, buzzer will
"Beep" to warn outrange, function status is as below:
a) When AC, DC voltage <600V, buzzer beeps
b) 100A AC and DC gear: current >maximum range, buzzer beeps.
•
Low-voltage detect: when battery voltage is lower than 2.5V, battery
under-voltage symbol if
lower once this symbol shows, replace battery timely; if it is lower
than 2.2V, only battery under-voltage symbol shows after starting up,
it can't work.
•
When battery supply voltage lowers to 2.6V, LCD backlight will be in
weak or non-start state; but measurement functions still work.
12. Technical index
Accuracy: ±(a% reading+ b word count), warranty period is 1 year.
Environment temperature: 23°C ±5°C (73.4°F ±9°F) relative humidity
≤ 75%
1. DC Voltage Measurements
Range
200.0mV
2.000V
20.00V
200.0V
600V
Input resistance is about 10MΩ. (as input resistance is high, when
200mV range open circuit, there may be instable digital display,
but measurement can be stabilized once the measured source with
internal resistance lower than 10MΩ is connected, but the impact
of internal resistance of measured source on measurement reading
should be considered)
Maximum input voltage: ±600V
2. AC voltage measurement
Range
2.000V
20.00V
200.0V
600V
12
appears, measurement accuracy may be
Resolution
0.1mV
1mV
10mV
100mV
1V
Resolution
1mV
10mV
100mV
1V
Accuracy
±(0.7%+5)
±(0.7%+3)
Accuracy
± (1.0%+3)
±(1.0%+3) V.F.C. mode:± (4.0%+3)
±(1.2%+3) V.F.C. mode:± (4.0%+3)