MN36 Datasheet, PDF (2/2 Pages) Extech Instruments Corporation. – Auto-Ranging Mini MultiMeter

Symbols
•)))
mV, V
Ω, kΩ, MΩ
µA, mA, A
o_F,o_C
H
AC (voltage)
DC (direct current or voltage)
Continuity and Diode test
millivolt, volt (voltage)
ohm, kilohm, megohm (resistance)
microamp, milliamp, Amp (current)
Degrees fahrenheit, centigrade (temperature)
Low battery
Display hold
Meter Description
1. LCD Display
2. DATA HOLD button
3. SELECT button
4. Function switch
5. Positive input jack
6. COM jack
7. 10A jack
8. Rubber boot
1
2
3
3999
4
5
6
7
8
Note: Tilt stand and battery access is on the rear of unit.
Operating Instructions
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 V position.
3. Press the SELECT button to select either AC or DC.
4. Touch the test probes to the circuit under test and read the voltage on
the display.
Current Measurements
CAUTION: Do not make high current measurements on the 10A
scale for longer than 15 seconds followed by a 15 minute cool
down period. Exceeding 15 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.
2. For current measurements up to 200mA DC, set the function switch
to the µA or mA position and insert the red test lead banana plug into
the mA jack.
3. For current measurements up to 10A DC, set the function switch to
the 10A range and insert the red test lead banana plug into the 10A
jack.
4. Remove power from the circuit under test, then open up the circuit at
the point where you wish to measure current.
5. Touch the black test probe tip to the negative side of the circuit.
Touch the red test probe tip to the positive side of the circuit.
6. Apply power to the circuit.
7. Read the current in 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.
2. Set the function switch to the Ω position.
3. Touch the test probe tips across the circuit or part under test. It is best
to disconnect one side of the part under test so the rest of the circuit
will not interfere with the resistance reading.
4. Read the resistance in the display.
Capacitance Measurements
1. Insert the black test lead banana plug into the negative COM jack and
the red test lead banana plug into the positive CAP jack.
2. Turn the rotary switch to the
position.
3. Touch the test probes to the circuit or device under test and read the
capacitance on the display.
Frequency Measurements
1. Insert the black test lead banana plug into the negative COM
jack and the red test lead banana plug into the positive HZ
jack.
2. Turn the rotary switch to the Hz position.
3. Touch the test probes to the circuit or under test and read
the frequency or duty cycle on the display.
Temperature Measurements
WARNING: To avoid electric shock, disconnect test leads from any
source of voltage before making a temperature measurement. Be
sure that the thermocouple has been removed before changing to any
other measurement function.
1. Insert the type K thermocouple probe into the Temp and COM jacks.
2. Turn the rotary switch to the ^oF or ^oC position.
3. Read the temperature on the display.
Continuity 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/Ω/mA jack. Observe
polarity.
2. Turn the rotary switch to the •))) position.
3. Touch the test probes to the circuit or device under test. If the
resistance is less than approximately 30Ω the buzzer will sound.
Diode 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/Ω/mA jack.
2. Turn the rotary switch to the •))) position.
3. Touch the test probes to the diode under test. Forward voltage will
indicate 0.4V to 0.7V. Reverse voltage will indicate “OL”. Shorted
devices will indicate near 0mV and an open device will indicate “OL”
in both polarities.
Data Hold
Press the Hold button to freeze the reading in the display. “H” will
appear in the LCD. Press the key again to release the display.
Low Battery
If the + - low battery icon appears in the display, replace the batteries
to maintain proper operation.
Auto-Ranging
The meter will auto range to the optimum range to provide the best
resolution and accuracy for the input signal.
Auto Power Off
1. This meter will automatically shut off after approximately 15 minutes
of operation. If the meter shuts off, rotate the function switch to OFF
and on again (or press the HOLD button) to resume operation.
2. To disable the auto power off, hold the SELECT button while turning
power on or press the SELECT button after auto power off has turned
the meter off.
Maintenance
WARNING: To avoid electric shock, disconnect the test leads from
any source of voltage before removing the battery/fuse cover.
WARNING: To avoid electric shock, do not operate your meter until
the battery/fuse cover is in place and fastened securely.
This Multimeter is designed to provide years of dependable service, if
the following care instructions are performed.
1. Keep the meter dry.
2. Use and store the meter in mild ambient conditions. Temperature
extremes can shorten the life of the electronic parts and distort or
melt plastic parts.
3. Handle the meter gently. Dropping it can damage the electronic parts
or the case.
4. Keep the meter clean. Wipe the case occasionally with a damp cloth.
DO NOT use chemicals, cleaning solvents or detergents.
5. Use only fresh batteries of the recommended size and type. Remove
old or weak batteries so they do not leak and damage the unit.
6. If the meter is to be stored for a long period of time, the batteries
should be removed to prevent damage to the unit.
UL LISTED
The UL mark does not indicate that this product has been
evaluated for the accuracy of its readings.
Battery and Fuse Replacement
WARNING: To avoid electric shock, disconnect the test leads from
any source of voltage before removing the battery/fuse cover.
1. Disconnect the test leads from the meter.
2. Remove the rubber holster (if in place).
3. Remove the two screws securing the rear cover using a Phillips head
screwdriver.
4. Batteries:
Lift the cover off and replace the batteries observing the correct
polarity. Insert the new batteries into the battery holder.
5. Fuse:
Remove the old fuse by gently pulling up on it. Install the new fuse by
gently pushing it into the holder. Always use a fuse of the proper size
and value; 250mA/250V fast blow.
6. Replace the rear cover and secure with the screws.
Support Hotline [phone]
Tech support: Ext. 200; Email: [e-mail]
Repair/Returns: Ext. 210; Email: [e-mail]
Website: www.extech.com
Specifications subject to change without notice
Extech Instruments Corporation
285 Bear Hill Rd. Waltham, MA 02451
Copyright © 2004 Extech Instruments Corporation
All rights reserved including the right of reproduction in whole or in part in any form
Model MN36 V2.1 505