Altronics Q1073A User manual
Auto Ranging True RMS Pro Digital Multimeter
Instruction Manual
Model: Q 1073A
• True RMS AC measurement • 6000 count reverse backlit LCD • Autoranging
• Frequency counter to 10MHz • Capacitance measurement • Fused 10A input
• Temperature mode (°C/°F) • Test socket LED lights • Continuity and diode test
• Internal rechargeable lithium battery • Range hold & relative mode • Data hold
• Wireless USB charging adaptor • Cat III 1000V/Cat IV 600V
Features
The 4$ Digital Autoranging Multimeter LV fully tested
and calibrated before leaving the production lines.
In addition to the standard digital multimeter features, the meter
also offer:
-Non-contact Voltage Detector for safely senses electrical
sources;
- Live wire detection
-Input Jack Indicators to remind users to plug-in the correct
jacks;
- Frequency Measurement; and
- Temperature Measurement.
-Vertical Alignment Display which provide large viewing angles,
fast response, sharp contrast and easily read under strong
light, and
-inductive charging which is environmental friendly and
convenience to use.
With careful use, the Meter will provide years of reliable service.
Read Before Use – Safety Information ............................... 1
Symbols .................................................................. 2
The Meter ................................................................... 3
Meter Strurcture .................................................................. 3
Push Buttons ..................................................................................... 6
Operating the Meter .................................................... 7
E. Measuring Resistance .............................................................. 11
G. Diode Test ................................................................ 13
K. Detecting Live Wire .................................................... 16
M. Relative Mode .................................................................... 17
O. Input Jack Indicator ..................................................
Sleep Mode ..................................................................
Specifications ....................................................................
Maintenance ..................................................................... 21
Replace Fuses ................................................................................ 2
........
Page 1
To possible electrical shock, fire, personal injury and ensure safety operation
and service of the equipment, please follow these guidelines:
• Read the instruction before use and follow all safety instructions.
• Use the equipment only as specified in the instruction card; otherwise, the equipment's
safety features may not protect you.
• Do not use the equipment and/or the accessory if they look damaged and / or wet.
• Do not use the Product if it operates incorrectly.
• Do not use the equipment just before, during or just after an electrical storm (electrical
shock / high energy overvoltage!). Please make sure that your hands, your shoes,
your clothing, the floor, switches and switching components are dry.
• Never use the equipment if it just brought from a place with great temperature
difference.
• Do not use the equipment around explosive gas or vapor.
• Limit operation to the specified measurement category, voltage, or amperage ratings.
•
component of a Product, probe, or accessory
• Avoid to use the equipment in the environment with strong magnetic fields, strong
electrostatic fields and strong RF fields.
•
(approved rubber gloves, face protection, and flame-resistant clothes) to prevent
shock and arc blast injury where hazardous live conductors are exposed.
•
• Keep fingers behind the finger guards on the probes.
• Use only current probes, test leads, and adapters supplied with the Product.
•
before the common test lead.
• Disable the Product if it is damaged.
• Only use probes, test leads, and accessories that have the same measurement
category, voltage, and amperage ratings as the Product.
• The battery door must be closed and locked before you operate the Product.
• Remove all probes, test leads, and accessories before the battery door is opened.
• Replace the batteries when the low battery indicator shows to prevent incorrect
measurements.
• Do not apply more than the rated voltage, between the terminals or between each
Page 2
terminal and earth ground.
• Measure a known voltage first to make sure that the Product operates correctly.
• Use the correct terminals, function, and range for measurements.
• Do not use test leads if they are damaged. Examine the test leads for damaged
• Do not touch the probes to a voltage source when the test leads are connected to the
current terminals.
• Do not use test leads if they are damaged. Examine the test leads for damaged
insulation and measure a known voltage.
• Remove the batteries if the equipment planned to be stored for long period or if stored
damage the Product.
• Personal injury or damage to the equipment can occur if you attempt to make a
measurement with a lead in an incorrect terminal.
• A " " statement identifies hazardous conditions and actions that could
cause bodily harm or death.
• A “ ” statement identifies conditions and actions that could damage the
equipment or the object under test.
Symbol Meaning
Earth ground
Double insulated
Risk of Danger
Diode
Page 3
Symbol Meaning
transients in equipment in fixedequipment installations,
such as distribution panels, feeders and short branch
circuits, and lighting systems in large buildings.
transients from the primary supply level, such as an
electricity meter or an overhead or underground utility
service.
12
3
5
6
7
11
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1) USB port
2) Indicator - Error is happened
1
2
3
TRMS-MAX
MIN
123 45
6
7
8
9
10
11
12
13
14
15
16
17
Page 5
item Symbol Description
1Meter is ready for continuity test
2 Meter is ready for non-contact voltage detecting
3Meter is ready for diode test
MIN Minimum reading is displaying
5 Measurement units
V
mV
Volt (unit of voltage)
Millivolt
A
mA
A
Amperes (unit of current)
Milliamp
Microamp
k
M
Ohm (unit of resistance)
Kilohm
Megaohm
Hz
kHz
MHz
Hertz (unit of frequency)
Kilohertz
Megahertz
F
nF
F
mF
Farad (unit of capacitance)
Nanofarad
Microfarad
Millifarad
6ain display digits
- input is out of range
- Meter is for Live detection
7
Temperature unit
Degree Fahrenheit
MAX Maximum reading is displaying
T-RMS Meter is ready for measuring true RMS value
Meter is in auto-ranging mode
11 REL Meter is in relative mode (Meter is displaying th
present value minus the stored value)
12 Low battery power
Page 6
item Symbol Description
13 Display Hold is active
15 Negative sign
16
17 Dangerous Voltages
Button Mode Function Access
Any Selects alternate
measurement functions
on a rotary switch setting
Press once to select the next
function
Switch on/off the
flashlight
Hold down to switch on
Holde down again to switch off
Any Switch on/off the relative
mode
Press once to enter the mode
Press again to exit the relative
mode
Remark:
REL will be displayed when relative mode is on
The measured value will be stored when relative mode is
switch on
Display of relative mode
= Actual measuring value - stored value
At Auto ranging
mode
Toggles between Auto
and Manual Range
modes.
Press once to switch to manual
ranging.
At Manual
ranging mode
Select ranges manually Press to switch to next range
Return to Auto ranging Hold down to return to Auto
ranging
will be displayed when Meter is in Auto ranging mode
Any Display HOLD Press to freeze the displayed
value
Press again to release the display
Switch on/off Display
Backlight
Hold down to switch on
Holde down again to switch off
Page 7
•
•
•
Tips : The Meter have input jack indicators to advise the connect input jack
for the selected function.
•
•
mV
Set up to measure DC Voltage
Page 8
1) Insert the testleads as showing in the above figure;
2) Turn the rotary switch to the Volt or millivolt range;
3) Connect the testleads across with the object being measured;
4) The measured value shows on the display;
5) If needed, press to switch to manual ranging, press again to
change the range selected. Hold down the same button to return
to auto ranging.
•
•
•
~
~
~
mV
Set up to measure AC Voltage
Page 9
1) Insert the testleads as showing in the above figure;
2) Turn the rotary switch to the Volt or millivolt range;
3) Press to switch to AC mode;
4) Connect the testleads across with the object being measured;
5) The measured value shows on the display;
6) If needed, press to switch to manual ranging, press again to
change the range selected. Hold down the same button to return
to auto ranging.
•
•
Set up to measure DC Current
Page 10
1) Turn off power to the circuit being test. Discharge all high voltage
capacitors;
2) Insert the testleads as showing in the above figure;
3) Turn the rotary switch to the Ampere, Milliamp or MIcroamp range;
4) Open the circuit path to be tested and connect the testleads to the
break of the circuit;
5) The measured value shows on the display;
6) If needed, press to switch to manual ranging, press again to
change the range selected. Hold down the same button to return
to auto ranging.
•
•
Set up to measure AC Current
Page 11
1) Turn off power to the circuit being test. Discharge all high voltage
capacitors;
2) Insert the testleads as showing in the above figure;
3) Turn the rotary switch to the Ampere, Milliamp or MIcroamp range;
4) Press to switch to AC mode;
5) Open the circuit path to be tested and connect the testleads to the
break of the circuit;
6) The measured value shows on the display
7) If needed, press to switch to manual ranging, press again to
change the range selected. Hold down the same button to return
to auto ranging.
•
Set up to measure Resistance
Page 12
1) Insert the testleads as showing in the above figure;
2) Turn the rotary switch to the range;
3) Connect the testleads across with the object being measured;
4) The measured value shows on the display
5) If needed, press to switch to manual ranging, press again to
change the range selected. Hold down the same button to return
to auto ranging.
Note :
• The testleads can add 0.1
to 0.3
of error to resistance measurements.
To test the leads, touch the probe tips together and read the resistance
of the leads. If necessary, you can use the relative (REL) mode to
automatically subtract this value.
• The measured value of a resistor in a circuit is often different from the
resistor’s rated value.
• The resistance function can produce enough voltage to forward-bias
silicon diode or transistor junctions, causing them to conduct. If this is
suspected, press to apply a lower current in the next higher range. If
the value is higher, use the higher value.
•
Set up to check Continuity
Press
Page 13
1) Insert the testleads as showing in the above figure;
2) Turn the rotary switch to the range;
3) Press twice to switch to continuity mode;
4) Connect the testleads across with the object being measured;
5) The measured value shows on the display.
•
•
Set up to check Diode
Press
1) Insert the testleads as showing in the above figure;
2) Turn the rotary switch to the range;
3) Press to switch to continuity mode;
4) Connect the testleads across with the object being measured;
5) The measured value shows on the display.
Page 14
C F
Press Object to be
Measured
Set up to measure temperature
1) Insert the testleads as showing in the above figure;
2) Turn the rotary switch to the °C °F range;
3) Press to switch to select °C mode, press one more to switch to
°F mode;
4) Connect the testleads across with the object being measured;
5) The measured value shows on the display.
Note: The included temperature probe can only be used with
temperature 250°C below.
•
Page 15
Set up to measure Frequency
~
~
Hz
Press
Turn the Rotary Switch to
V, mV, A, mA or uA
•
•
•
Set up to measure Capacitance
1) Insert the testleads as showing in the above figure;
2) Turn the rotary switch to the range;
3) Connect the testleads across with the object being measured;
4) The measured value shows on the display.
Page 16
•
•
Set up to find live wire
Live
NCV
Press
1) Insert the red testleads as showing in the above figure;
2) Turn the rotary switch to the NCV Live range;
3) Insert the red probe to the AC power socket;
4) "-", "--", "---" or "----" will be displayed which indicate power is
present. More number of "-" means the power is more strong.
•
•
Page 17
Set up to detect Voltage (non-contact)
1)
2) EF is displayed;
being test;
I
frequency will increase and the number of "-" will also increase
when higher voltage is detected.
Selecting relative mode causes the Meter to zero the display and store
the present reading as the reference for subsequent measurements.
The Meter is locked into the range selected when you pressed .
Press again to exit this mode.
In relative mode, the reading shown is always the difference between
the present reading and the stored reference value. For example, if the
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