User Manual for ZOYI models including: ZT-Y Digital Multimeter, ZT-Y, Digital Multimeter, Multimeter
مولتی متر زویی ZOYI مدل ZT-Y | فروشگاه تکترونیکس
3 LCD Display ① Auto range. The product selects the range with the best resolution. ② Manual range. The user selects the range. ③ Capacitance test.
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DocumentDocumentUser Manual
All rights reserved. Specifications are subject to change without notice.
LIMITED WARRANTY AND LIMITATION OF LIABILITY
Customers enjoy one-year warranty from the date of purchase. This warranty does not cover fuses, disposable batteries, damage from misuse accident, neglect, alteration, contamination, or abnormal conditions of operation or handling, including failures caused by use outside of the product's specifications, or normal wear and tear of mechanical components.
Table of Contents
Page
Introduction..........................................................1 Safety Information................................................1 Instrument Overview............................................3
LCD Display...................................................3 Function Buttons............................................5 Rotary Buttons.................................................6 Input Terminals...............................................8 Measurements Instruction....................................9 Measure AC/DC Voltage.................................9 Measure AC/DC Current.................................9 Measure Resistance.....................................10 Test Diodes and Continuity...........................10 Measure Capacitance..................................11 Measure Frequency and Duty Cycle............. 12 Measure Temperature...................................13 Test NCV..............................................13
V.F.C test.....................................................14 Square wave test..........................................14 Maintenance.......................................................15 Clean the Product.........................................15 Replace the Batteries...................................15 Replace the Fuses.......................................16 Specifications.....................................................17 General Specifications.................................17 Mechanical Specifications............................17 Environmental Specifications.......................17 Electrical Specifications......................................18
Introduction
This product is a 9999 counts true RMS autoranging digital multimeter.
Safety Information
To avoid possible electrical shock, fire, or personal injury, please read all safety information before you use the product. Please use the product only as specified, or the protection supplied by the product can be compromised. · Examine the case before you use the product.
Look for cracks or missing plastic. Carefully look at the insulation around the terminals. · The measurement must be made with correct input terminals and functions and within the allowable measuring range. · Do not use the product around explosive gas, vapor, or in damp or wet environments.
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· Keep fingers behind the finger guards on the probes.
· When the product has already been connected to the line being measured, do NOT touch the input terminal that is not in service.
· Disconnect the test leads from the circuit before changing the mode.
· When the voltage to be measured exceeds 36V DC or 25V AC, the operator shall be careful enough to avoid electric shock.
· Misuse of mode or range can lead to hazards, be cautious. " " will be shown on the display when the input is out of range.
· Low level of a battery will result in incorrect readings. Change the batteries when battery level is low. Do not make measurements when the battery door is not properly placed.
2
Instrument Overview
LCD Display
Auto range. The product selects
the range with the best resolution.
Manual range. The user selects
the range.
Capacitance test. (Farad)
Relative mode.
Diode test.
Continuity test.
Duty cycle test.
Secondary measurements display.
Alternating current.
Direct current.
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V.F.C
Frequency test. (Hertz) Temperature test. (Celsius) Temperature test. (Fahrenheit)
Analog bar graph. Resistance test. (Ohm) Current test. (Ampere) Voltage test. (Volt) Primary measurement display. The product measures both sinusoidal and nonsinusoidal ac waveforms accurately. Low battery. Replace batteries. Negative readings.
Display freezes present reading. Frequency converter test. Display maximum value. Display minimum value. Measurement units.
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Function Buttons
Short press to switch among functions. Long press to enter in V.F.C function.
Short press to change range. Push for more than 2 seconds to enter the relative mode. The product will store the present reading as a reference for subsequent readings. The display is zeroed, and the stored reading is subtracted from all subsequent readings. Longpush again to exit the relative mode.
Press this button to switch MAX/MIN test. Long press 2 second to quit MAX/MIN mode.
Push once to hold the current reading on the display; push again to continue normal operation.
Long press beyond 2 seconds to turn on flashlight ; long press again to turn off flashlight.
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Rotary button
Turn off the product at this position. · The product automatically powers
off after 15 minutes of inactivity. · The built-in beeper beeps 5 times
1 minute before auto power off. · To restart the product from auto
power off, press the SELECT button or turn the rotary switch back to the OFF position and then to a needed position. · To disable the Auto Power Off function, hold down the SELECT button when turning on the product, you will hear five beeps if you have successfully disabled the function.
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AC voltage 750V DC voltage 1000V Frequency 10V1~100KHz Duty cycle1%~99% V.F.C
AC voltage 99.99mV DC voltage 99.99mV Frequency 10V1~10MHz Duty cycle 1%~99% Temperature-20~1000°C (-4~1832)
Resistance99.99M Continuitybeeper will beep when resistance less than 50 Diode test. Displays above 3V Capacitance9.999mF
NCV
Square wave 50Hz/100Hz/200Hz/300Hz/400Hz/ 500Hz/600Hz/700Hz/800Hz/900Hz/ 1000Hz/2000Hz/3000Hz/4000Hz/ 5000Hz
DC current99.99mA AC current99.99mA
DC current999.9A AC current999.9A
DC current9.999A AC current9.999A
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Input Terminals
Input terminal for AC/DC current A measurements to 9.999A.
A/mA
Input terminal for AC/DC measurements to 99.99mA.
current
COM
Common (return) terminal for all measurements.
Input terminal for the measurements of: 1. Diode 2. Continuity 3. Square wave 4. Temperature 5. AC/DC voltage 6. Resistance 7. Frequency 8. Capacitance
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Measurements Instruction
Measure AC/DC Voltage
1. Connect the black test lead to the COM Terminal
and the red lead to the
Terminal.
2. To measure voltage under 99.99mV, turn the
rotary to .To measure voltage higher than
99.99mV, turn the rotary to
, press
SELECT to turn to AC voltage test mode.
3. Touch the probes to the correct test points of
the circuit to measure the voltage.
4. Read the measured voltage on the screen.
*Do not measure voltage that exceeds the extremes as indicated in the Specifications. *Do not touch high voltage circuit during measurements.
Measure AC/DC Current
1. Connect the black test lead to the COM Terminal and the red lead to the A or A /mA Terminal (choose based on the value of the current to be measured);
2. Turn the rotary to , or ; 3. Break the circuit path to be measured,
connect the test leads across the break and apply power; 4. Read the measured current on the display.
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*Do not measure current that exceeds the extremes as indicated in the Specifications. *Use the AmA Terminal when you are measuring an unknown current. Then switch to the A Terminal if necessary. *Do not input voltage at this setting.
Measure Resistance
1. Connect the black test lead to the COM Terminal
and the test lead to the
Terminal;
2. Turn the rotary to
, press "SELECT" to the
Resistance Mode. The screen will show " ";
3. Touch the probes to the desired test points of
the circuit to measure the resistance;
4. Read the measured resistance on the display.
*Disconnect circuit power and discharge all capacitors before you test resistance.
*Do not input voltage at this setting.
Test Diodes and Continuity
1. Connect the black test lead to the COM Terminal and
the red lead to the
Terminal;
2. Turn the rotary to , press "SELECT" to the
continuity Mode;
3. To test continuity, touch the probes to the desired
test points of the circuit. The built-in beeper will
beep when there is a short circuit;
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4. To test diodes, connect the red probe to the anode side and the black probe to the cathode side of the diode being tested. Then read the forward bias voltage value on the display. If the polarity of the test leads is reversed with diode polarity or the diode is broken, the display reading shows " ".
*Do not input voltage at this setting. *Disconnect circuit power and discharge all capacitors before you test diode.
Measure Capacitance
1. Connect the black test lead to the COM Terminal and
the red lead to the
Terminal;
2. Turn the rotary to , press "SELECT" to the capacitance Mode;
3. Connect the red probe to the anode side and the black probe to the cathode side of the diode being tested;
4. Read the measured capacitance value on the display once the reading is stabilized.
*Disconnect circuit power and discharge all capacitors before you test diode.
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Measure Frequency and Duty Cycle
1. Connect the black test lead to the COM Terminal and
the red lead to the
Terminal;
2. Turn the rotary switch to
, press SELECT
to frequency test function (10V1~100KHz); or
turn the rotary switch to
, press SELECT
to frequency test function (10V1~5MHz);
3. If the frequency between 100kHz and 5MHz,
press SELECT to enter AC mV position. Touch
the probes to the desired test points, now the vice
display will show frequency; Then press the
SELECT again, the main display will show
frequency and vice display will show duty cycle.
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Measure Temperature
1. Connect the black test lead to the COM Terminal
and the red lead to the
Terminal;
2. Turn the rotary to
, press "SELECT" to
the temperature Mode; Now the main display
will show Celsius and the vice display will show Fahrenheit; 3. Touch the probes to the desired test points; 4. Read the measured temperature on the display.
*Do not input voltage at this setting.
Test NCV 1. Turn the rotary to NCV position, press "SELECT"
to the temperature Mode; 2. Hold the product and move it around, the built-in
beeper will beep when the inner sensor detects AC voltage nearby. The stronger the voltage is, the quicker the beeper beeps.
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Measure V.F.C
1. Connect the black test lead to the COM Terminal and
the red lead to the
Terminal;
2. Turn the rotary to
, long press
to enter
V.F.C mode, the screen will show voltage when put
the test leads at the correct circuit.
Measure square wave
1. Connect the black test lead to the COM Terminal and
the red lead to the
Terminal;
2. Turn the rotary switch to
, and the default
output frequency is 50Hz. To change the output frequency, press the SEL button. 3. Touch the probes to the desired test points.
*Do not input voltage at this setting.
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Maintenance
Beyond replacing batteries and fuses, do not attempt to repair or service the product unless you are qualified to do so and have the relevant calibration, performance test, and service instructions.
Clean the Product Wipe the product with a damp cloth and mild detergent. Do not use abrasives or solvents. Dirt or moisture in the terminals can affect readings. *Remove the input signals before you clean the product.
Replace the Batteries When " " is shown on the display, batteries shall be replaced as below: 1. Remove the test leads and turn off the product
before replacing the batteries.
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2. Loosen the screw on the battery door and remove the battery door.
3. Replace the used batteries with new batteries of the same type.
4. Place the battery door back and fasten the screw.
Replace the Fuses When a fuse is blown or do not work properly, it shall be replaced as below: 1. Remove the test leads and turn off the product
before replacing the fuse. 2. Loosen the four screws on the back cover and
the screw on the battery door, then remove the battery door and the back cover. 3. Replace the fuse with a new fuse of the same type. 4. Place the back cover and the battery door back and fasten the screws.
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Specifications
General Specifications
DisplayLCD
9999 Counts
Ranging
Auto/Manual
Material
ABS+TPE
Update Rate Ture RMS Data Hold Backlight Low Battery Indication Auto Power Off
3 Times/Second
Mechanical Specifications
Dimension
147*76*37mm
Weight
191gwithout batteries
Battery Type
1.5V AAA Battery * 3
Warranty
One year
Environmental Specifications
Operating
Temperature Humidity
0~40 75%
Storage
Temperature Humidity
-20~60 80%
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Electrical Specifications
Function Range Resolution Accuracy
999.9mV 0.1mV
DC Voltage 9.999V
(V)
99.99V
999.9V
0.001V 0.01V 0.1V
±(0.5%+3)
DC Voltage 9.999mV (mV) 99.99mV
0.001mV 0.01mV
999.9mV 0.1mV
AC Voltage 9.999V
(V)
99.99V
750.0V
0.001V 0.01V 0.1V
±(1.0%+3)
AC Voltage 9.999mV (mV) 99.99mV
0.001mV 0.01mV
*Frequency response of ACV: 40Hz-1kHz
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Function Range Resolution Accuracy
DC Current 9.999A (A/mA) 999.9mA
0.001A 0.1mA
99.99mA
DC Current 9.999mA (A/mA) 99.99A 999.9A
0.01mA
0.001mA 0.01A 0.1A
±(1.0%+3)
AC Current 9.999A (A/mA) 999.9mA
0.001A 0.1mA
99.99mA
AC Current 9.999mA (A/mA) 99.99A
999.9A
0.01mA
0.001mA 0.01A 0.1A
±(1.2%+3)
Frequency response of AC Current: 40Hz-1kHz
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Function Resistance
Range
99.99 999.9 9.999k 99.99k 999.9k 9.999M 99.99M
Resolution
0.01 0.1 0.001k 0.01k 0.1k 0.001M 0.01M
Accuracy ±(1.0%+3)
±(0.5%+3)
±(1.5%+3) ±(3.0%+5)
9.999nF 0.001nF ±(5.0%+20)
99.99nF 0.01nF
999.9nF Capacitance 9.999F
99.99F 999.9F
0.1nF 0.001F 0.01F 0.1F
±(2.0%+5)
9.999mF 0.001mF ±(5.0%+5)
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Function
Range Resolution Accuracy
9.999Hz
0.001Hz
Frequency (Measures
only to 100kHz under the ACV setting)
99.99Hz 999.9Hz 9.999kHz 99.99kHz 999.9kHz
0.01Hz 0.1Hz 0.001kHz 0.01kHz 0.1kHz
±(0.1%+2)
5.000MHz 0.001MHz
Duty Cycle 1%~99%
0.1%
±(0.1%+2)
(-20~1000) 1 Temperature
(-4~1832) 1
Diode
Continuity
NCV
Square wave
V.F.C
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±(2.5%+5
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