Operating Instructions - Extech Instruments MN26 User Manual

Symbols
AC (alternating current or
voltage)
DC (direct current or voltage)
•))) Continuity
Diode test
mV, V millivolt, volt (voltage)
Ω, kΩ, MΩ
ohm, kilohm, megohm
(resistance)
uA, mA, A microamp, milliamp, Amp
(current)

Operating Instructions

AC or DC Voltage Measurements
1. Insert the black test lead banana plug into the negative COM jack and the red test
lead banana plug into the positive V jack.
2. Turn the rotary switch to the VAC or VDC position.
3. Touch the test probes to the circuit under test and read the voltage on the display.
AC or DC Current Measurements
CAUTION: Do not make current measurements on the 10A scale for longer than 30
seconds followed by a 15 minute cool down period. Exceeding 30 seconds may cause
damage to the meter and/or the test leads.
1. Insert the black test lead banana plug into the negative COM jack and the red test
lead banana plug into the;
a. Positive uA/mA jack for currents to 400mA
b. Positive 10A jack for currents to 10A
2. Turn the rotary switch to the uA, mA or A position.
3. Touch the test probes in series with the circuit under test and read the current on the
display.
Resistance Measurements
1. Insert the black test lead banana plug into the negative COM jack and the red test
lead banana plug into the positive Ω jack.
Turn the rotary switch to the Ω position.
2.
3. Touch the test probes to the circuit or device under test and read the resistance on
the display.
pF, nF, uF picofarad, nanofarad,
microfarad (capacitance)
Hz kHz hertz, kilohertz (frequency)
% % duty cycle
O O
F, C Degrees Fahrenheit,
Centigrade (temperature)
AUTO Autorange
BAT Low battery
HOLD Display hold
REL Relative
5 MN26T V4.0 05/05