Mercury MTTR01 User Manual

Item ref: 600.104UK

MTTR01

TRUE RMS DIGITAL MULTITESTER

WITH USB INTERFACE

User Manual

MTTR01 User Manual

Please read this manual thoroughly and
ensure all contents are fully understood

before using the apparatus.

WARNING

To avoid possible electric shock or personal injury, and to avoid possible
damage to the tester or to the equipment under test, adhere to these
following rules:

 Before using the tester inspect the case. Do not use the tester if it is

damaged or the case (or part of the case) is removed. Look for cracks
or missing plastic. Pay attention to the insulation around the
connectors.

 Inspect the test leads for damaged insulation or exposed metal.

Check the test leads for continuity.

 Do not apply more than the rated voltage, as marked on the tester,

between the terminals or between any terminal and grounding.

 The rotary switch should be in the right position and no changeover of

range shall be made while measurement is conducted to prevent
damage.

 When the tester is working at an effective voltage over 60V in DC or

30Vrms in AC, special care should be taken for there is danger of
electric shock.

 Use the proper terminals, function, and range for your measurements.
 Do not use or store the tester in an environment of high temperature,

humidity, explosive, flammable, damp or of a strong magnetic field.
The performance of the tester may deteriorate after being exposed to
any of these elements.

 When using the test leads, keep your fingers behind the finger guards.
 Disconnect circuit power and discharge all high-voltage capacitors

before testing resistance, continuity, diodes.

 Replace the battery as soon as the battery indicator appears. With a

low battery, the meter may produce false readings that can lead to
electric shock and personal injury.

MTTR01 User Manual

 Remove the connection between the testing leads and the circuit being

tested, and turn the meter power off before opening the meter case.

 The internal circuit of the meter shall not be altered at will to avoid

damage of the meter and any accident.

 A soft cloth and mild detergent should be used to clean the surface of

the tester on a regular basis. No abrasive and solvent should be used
to prevent the surface of the tester from corrosion or damage.

 The tester is suitable for indoor use only.
 Turn the tester power off when it is not in use and take out the battery

when not using for a long time. Check the battery regularly; replace the
battery immediately if any signs of leaking appear. Battery acid will
damage the tester.

General Specifications

Max display: LCD (6000 count) 64 x 43mm
Polarity: Automatic, indicated minus, assumed plus
Measure method: double integral A/D switch implement
Sampling speed: 2.5 times per second
Over-load indication: “OL” is displayed
Operating temperature: 0ºC to 40ºC, at <75%RH
Storage temperature: -30ºC to 60ºC, at <85%RH
Power: 9Vdc (1 x PP3 battery supplied)
Low battery indication: “ ”
Display resolution: 6000 counts
Resistance: 600Ω to 60MΩ
Capacitance: 40nF - 4000µF
Frequency: 9.99Hz - 9.99MHz
Test temperature: -20°C - 1000°C
Duty cycle: 5% to 95%
Dimensions: 188 x 81 x 48mm
Weight: 420g (including battery)

MTTR01 User Manual

Layout:

MTTR01 User Manual

1. LCD Display, maximum reading of 5999.

2. Relative and USB mode switch. Press to switch between auto

reading mode “auto” and relative mode “ ”. Press and hold for 2
seconds to switch between USB mode “USB” and auto power off
mode “APO”.

3. Hz/Duty display, when measuring AC voltage or current, press to

display between the frequency and duty cycles of the measuring
signals.

4. “ ” Press this button to data hold the display and press again

to release data. Press and hold for 2 seconds to toggle the back
light on for 10 seconds.

5. “Max/Min” Press this button to display the maximum and

minimum reading from the moment this button is pressed. Press
and hold this button for 2 seconds to exit Max/Min display mode.

6. Function/Range switch for selecting different measuring ranges

and also serves as an ON/OFF switch. To preserve battery life,
please ensure the range switch is turn to OFF position when not
in use.

7. “10A” Probe socket, socket for the positive (red) probe when

measuring current between 400mA to 10A.

8. “uA/mA” Probe socket, socket for the positive (red) probe when

measuring current below 400mA.

9. “COM” Probe socket, socket for the negative (black) probe.

10. “Positive” Probe socket, socket for the positive (red) probe for

measuring everything apart from current.

11. “Range” switch, when measuring voltage, current, capacitance or

resistance, pressing this button with disengage the auto range
function and allow you to manually set the displaying range.

12. “Select” has following functions:

- When measuring signal with combined AC+DC, pressing this

button will allow the AC and DC to be measured separately.

- To switch between measuring function of resistance,

continuity and diode.

MTTR01 User Manual

- To switch between displaying Fahrenheit and Celsius when

measuring temperature.

- Press and hold this button when switching the meter on to

disable the auto power off function, this allows the meter to
stay on standby unless manually switched off.

13. Strong magnet that allows meter to be attached to any iron/steel

surface, in case both hands are required to take the
measurement.

14. Mini USB socket at the bottom of the unit to connect to a PC.

For testing transistors and capacitors, the measuring adaptor supplied
should be connected as below. The two square sockets on the top are for
testing capacitors and the 6 smaller sockets at the bottom are for testing
the PNP and NPN type transistors.