Specifications - Extech Instruments MA260 User Manual

Specifications
ELECTRICAL SPECIFICATIONS
Function
AC Current
AC Voltage
DC Voltage
Resistance
Diode
Volt‐Detection
Notes:

The time delay that results from the meter's automatic sensing circuit (1 to 2 seconds) may
cause GFCI circuits to reset and breakers to trip.

It is not recommended to use calibration equipment to test the MA260. Calibrators can be
damaged if used to test the MA260.

Accuracy is given as ± (% of reading + least significant digit) at 23C ±5C with relative humidity
lower than 80%. Accuracy is specified for a period of one year after calibration.

ACV and ACA specifications are for AC Coupled, True RMS. For non‐sinusoidal waveforms,
additional accuracy Crest Factor (C.F.) considerations exist as detailed below:
Add 3.0% for C.F. 1.0~2.0
Add 5.0% for C.F. 2.0~2.5
Add 7.0% for C.F. 2.5~3.0

Overload protection: AC 1000Vrms, DC 1000V for voltage, resistance, continuity, and diode
functions.

Maximum Open Voltage for Resistance/Continuity measurements: 1.6V

Continuity beeper: Beeper sounds when resistance is < 25 ohms and is off when the resistance
is > 400 ohms. Note that between 25 and 400 ohms the beeper may sound.

Maximum AC/DC operating time: 30 seconds for measurements > 30VAC or DC

AC Input Impedance: > 6K ohms for input voltage up to 30VAC. Impedance increases to
approximately 420k ohms at 1000VAC

Adjacent Conductor Influence for ACA measurements: <0.08A / A
800.561.8187
Range
1.5~200.0AAC
1.3V~1000V
+2.1V ~ 1000V
‐0.7V ~ ‐1000V
0~10kΩ
0.4V~0.8V
80V~1000VAC
www.
Max. Resolution
0.1 A
0.1 V
0.1 V
1 Ω
0.1 V
n/a
11
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Accuracy (of reading) and
frequency bandwidth
± (3.0% + 5 digits)
50 to 60Hz
± (0.9% + 3 digits)
(50Hz‐60Hz)
± (1.5% + 3 digits)
(61Hz‐500Hz)
± (0.3% + 2 digits)
± (0.3% + 2 digits)
± (0.9% + 2 digits)
± (1.0% + 3 digits)
50‐60Hz
MA260‐en‐GB_V1.1 5/15
information@itm.com