User’s Manual
MiniTecTM Series
Model MN26
(Model MN26T includes temperature probe)
Mini Autoranging MultiMeter
MN26T V4.0 05/05
2
Introduction
Congratulations on your purchase of Extech’s MN26 Autoranging Multimeter. This meter
measures AC/DC Voltage, AC/DC Current, Resistance, Capacitance, Frequency, Duty Cycle,
Temperature, Diode Test and Continuity. Proper use and care of this meter will provide many
years of reliable service.
Safety
International Safety Symbols
This symbol, adjacent to another symbol or terminal, indicates the user must
refer to the manual for further information.
This symbol, adjacent to a terminal, indicates that, under normal use,
hazardous voltages may be present
Double insulation
Safety Precautions
1. Improper use of this meter can cause damage, shock, injury or death. Read and
understand this user manual before operating the meter.
2. Make sure any covers or battery doors are properly closed and secured.
3. Always remove the test leads before replacing the battery or fuses.
4. Inspect the condition of the test leads and the meter itself for any damage before
operating the meter. Repair any damage before use.
5. Do not exceed the maximum rated input limits.
6. Use great care when making measurements if the voltages are greater than 25VAC
rms or 35VDC. These voltages are considered a shock hazard.
7. Always discharge capacitors and remove power from the device under test before
performing Capacitance, Diode, Resistance or Continuity tests.
8. Remove the battery from the meter if the meter is to be stored for long periods.
9. To avoid electric shock, do not measure AC current on any circuit whose voltage
exceeds 250V AC.
10. Voltage checks on electrical outlets can be difficult and misleading because of the
uncertainty of connection to the electrical contacts. Other means should be used to
ensure that the terminals are not "live".
Specifications
Function Range Resolution Accuracy
400mV 0.1mV
±(0.5% reading + 2 digits)
4V 0.001V
40V 0.01V
400V 0.1V
±(1.0% reading + 2 digits)
DC Voltage
(V DC)
600V 1V
±(1.5% reading + 2 digits)
400mV 0.1mV
±(2.0% reading + 30 digits)
4V 0.001V
40V 0.01V
400V 0.1V
±(1.5% reading + 3 digits)
AC Voltage
(V AC)
(40 - 400Hz)
(40 - 200Hz for
400mV, 4V ranges)
600V 1V
±(2.0% reading + 4 digits)
400µA 0.1µA
4000µA 1µA
40mA 0.01mA
400mA 0.1mA
±(1.5% reading + 3 digits)
DC Current
(A DC)
10A 0.01A
±(2.5% reading + 5 digits)
MN26T V4.0 05/05
3
Function Range Resolution Accuracy
400µA 0.1µA
4000µA 1µA
40mA 0.01mA
400mA 0.1mA
±(1.8% reading + 5 digits)
AC Current
(A AC)
(40 - 400Hz)
(40 - 200Hz for
400µA, 4mA
ranges)
10A 0.01A
±(3.0% reading + 7 digits)
400Ω 0.1Ω ±(1.2% reading + 4 digits)
4kΩ 0.001kΩ
40kΩ 0.01kΩ
400kΩ 0.1kΩ
4MΩ 0.001MΩ
±(1.2% reading + 2 digits)
Resistance
40MΩ 0.01MΩ ±(2.0% reading + 3 digits)
4nF 0.001nF
±(5.0% reading + 10digits)
40nF 0.01nF
±(5.0% reading + 7 digits)
400nF 0.1nF
4µF 0.001µF
40µF 0.01µF
±(3.5% reading + 5 digits)
Capacitance
200µF 0.1µF ±(5.0% reading + 5 digits)
9.999Hz 0.001Hz
99.99Hz 0.01Hz
±(1.5% reading + 5 digits)
999.9Hz 0.1Hz
9.999kHz 0.001kHz
99.99kHz 0.01kHz
999.9kHz 0.1kHz
±(1.2% reading + 2 digits)
9.999MHz 0.001MHz
±(1.5% reading + 4 digits)
Frequency
Sensitivity: 0.8V rms min. @ 20% to 80% duty cycle and <100kHz;
5Vrms min @ 20% to 80% duty cycle and > 100kHz.
Duty Cycle 0.1 to 99.9% 0.1%
±(1.2% reading + 2 digits)
Pulse width: 100µs - 100ms
Temp °F -4 to 1400°F* 1°F
Temp °C -20 to 760°C* 1°C
±(3.0% reading + 3 digits)
(probe effect additional)
NOTE: Accuracy is stated at 65oF to 83oF (18oC to 28oC) and less than 70% RH.
NOTE: Temperature range of the temperature probe ma y be less than the range of the
meter.
Input Limits
Function Maximum Input
V DC, VAC 600V DC/AC
Ohms, Capacitance, Diode, Frequency,
Continuity
250V DC/AC
mA DC/AC 400mA DC/AC
10A DC/AC 10A DC/AC (30sec. max)
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