Major tech MT760, Инструкция по эксплуатации

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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 appears, measurement accuracy may be
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% b word count), warranty period is 1 year.
Environment temperature: 23°C ±5°C (73.4°F ±9°F) relative humidity
≤
75%
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
Resolution
200.0mV 0.1mV ±(0.7%+5)
2.000V 1mV
20.00V 10mV
±(0.7%+3)
200.0V 100mV
600V 1V
Range
1. DC Voltage Measurements
Accuracy
Resolution
2.000V 1mV
± (1.0%+3)
20.00V 10mV
200.0V 100mV ±(1.0%+3) V.F.C. mode:± (4.0%+3)
600V 1V ±(1.2%+3) V.F.C. mode:± (4.0%+3)
Range
2. AC voltage measurement
Accuracy
12