General Specifications - Mastech my68 Instruction Manual

7. Turn off power to the circuit and discharge all high voltage
capacitors. Remove the Meter and restore the circuit to
normal operation.
4 4 4 4 TECHNICAL TECHNICAL TECHNICAL TECHNICAL SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS
4.1 GENERAL 4.1 4.1 4.1 GENERAL GENERAL

GENERAL SPECIFICATIONS

SPECIFICATIONS SPECIFICATIONS SPECIFICATIONS
¥ Environment conditions:
1000V CAT. II and 600V CAT. III
Pollution degree: 2
Altitude < 2000m
Operating temperature:
0~40℃, 32℉~122℉ (<80% RH, <10℃ non-condensing)
Storage temperature:
-10~60 ℃, 14℉~140℉ (<70% RH, battery removed)
¥ Temperature Coefficient:
0.1×(specified accuracy) / ℃ (<18℃ or >28℃)
¥ MAX. Voltage between terminals and earth ground:
750V AC rms or 1000V DC.
¥ Fuse Protection:
µA and mA: F 500mA/250V ∅5×20;
10A: F 10A/250V ∅6.3×32.
¥ Sample Rate: 3 times/sec for digital data.
¥ Display:
3 3/4 digits LCD display. Automatic indication of functions
and symbols.
¥ Range selection: automatic and manual.
¥ Over Range indication: LCD will display "OL".
¥ Low battery indication:
The " " is displayed when the battery is under the
proper operation range.
¥ Polarity indication: "−" displayed automatically.
¥ Power source: 9V
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¥ Battery type: NEDA 1604, 6F22, or 006P.
¥ Dimensions: 91(L)×189(W)×31.5(H) mm.
¥ Weight: 310g. Approx. (battery included).
4.2 Measurement 4.2 4.2 4.2 Measurement Measurement Measurement specifications specifications specifications specifications
Accuracy is specified for one year after calibration, at
operating temperatures of 18℃ to 28℃, with relative humidity
at 0% to 75%.
Accuracy specifications take the form of: ± (% of Reading +
Number of Least Significant Digits)
4.2.1 4.2.1 4.2.1 4.2.1 DC DC DC Voltage DC Voltage Voltage Voltage
Range Resolution
400mV 0.1mV
4V 1mV
40V 10mV
400V 100mV
1000V 1V
Input impedance: 10MΩ
Max. input voltage: 1000Vdc or 750V ac rms.
4.2.2 4.2.2 AC AC Voltage Voltage
4.2.2 4.2.2 AC AC Voltage Voltage
Range Resolution
400mV 0.1mV
4V 1mV
40V 10mV
400V 100mV
750V 1V
Input impedance: 10MΩ
Max. input voltage: 1000Vdc or 750V ac rms.
Frequency Range: 40Hz-200Hz for 4V range, 40Hz-1kHz for
other ranges.
Response: Average, calibrated in rms of sine wave
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Accuracy
±（0.7% of rdg +2 digits）
±（0.8% of rdg +2 digits）
Accuracy
±(3.0% of rdg + 3 digits)
±（0.8% of rdg +3 digits）
±（1.0% of rdg +3 digits）