Tektronix 19999 Counts LCD Display Digital Oscilloscope Multimeter Signal Generator User Manual

19999 Counts LCD Display Digital Oscilloscope Multimeter Signal Generator

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Specifications:

• Power Source: Lithium battery

• Display: 19999 counts LCD display with adjustable backlight
  brightness

• Functions: True RMS, auto-range, clock, alarm clock, Bluetooth
  music playback, temperature display

• AC Voltage Measurement: Up to 750V

• DC Voltage Measurement: Up to 1000V

• Resistance Measurement: Up to 199.99M

• Capacitance Measurement: Up to 100mF

• Current Measurements: DC high current up to 19.999A, AC high
  current up to 19.999A, DC/AC milliamp current up to 199.99mA

Product Usage Instructions:

Safety Information:

Ensure proper handling and usage of the multimeter to prevent
damage or injury.

Instrument Overview:

Detailed information about the main and vice displays,
functions, and measurement modes.

Function Buttons:

Instructions on how to use each function button for different
measurement modes.

Power Button:

Guidance on using the power button and setting button for clock
and alarm clock settings.

Brightness Adjustment:

Instructions on how to adjust the screen brightness for better
visibility.

FAQ (Frequently Asked Questions):

Q: What is covered under the warranty?

A: The warranty covers manufacturing defects for one year from
the purchase date.

Q: How do I change the battery in the multimeter?

A: Please refer to the user manual for detailed instructions on
changing the battery.

Q: Can I measure both AC and DC currents with this

multimeter?

A: Yes, the multimeter can measure both AC and DC currents up to
specific limits mentioned in the specifications.

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UUsseerr MMaannuuaall
All rights reserved. All rSigphetscifriecsaetirovnesd.are subject to change without notice. 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.

Contents
Title Page Instruction………………………………………………………..1 Safety Information…………………………………………….1 Instrument Overview…………………………………………3 LCD Display…………………………………………………….3 Function Buttons………………………………………………6 Rotary Switch…………………………………………………..9 Input Terminals………………………………………………..10 Measurement Instruction…………………………………..11 Measure AC/DC Voltage……………………………………11 Measure AC/DC Current…………………………………….11 Measure Resistance………………………………………….12 Test Continuity………………………………………………….13 Test Diodes………………………………………………………13 Measure Capacitance………………………………………..14 Measure Frequency/Duty Cycle…………………………..15 Clock Setting…………………………………………………….15 Alarm Clock Setting……………………………………………16 Bluetooth Connection…………………………………………16

Auto Standby……………………………………………………17 Charge and Replace the Batteries……………………….17 Replace the Fuses…………………………………………….18 Maintenance…………………………………………………….18 Clean the Product……………………………………………..18 Specifications……………………………………………………19 General Specifications……………………………………….19 Mechanical Specifications…………………………………..19 Environmental Specifications………………………………20 Electrical Specifications………………………………………21 Bluetooth Specifications…………………………………….24

Introduction
This product is a lithium battery-powered, true RMS, auto-range multi-function digital multimeter with 19999 counts LCD display and adjustable backlight brightness. It is equipped with clock, alarm clock, Bluetooth to play music, temperature display.
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.
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· Do not use the product around explosive gas, vapor, or in damp or wet environments.
· 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
Main LCD Display

Main display

Auto standby

AUTO Auto range

MANU Manual range

Diode test

REL Relative value test

3

Continuity test

MIN Display shows maximum reading.

MAX Display shows minimum reading.

Hz Frequency test. (Hertz)

% Duty cycle test

Vice Display

HOLD Display hold present reading.

Analog bar graph.

The product measures both

sinusoidal and nonsinusoidal ac

T-RMS waveforms accurately.

AC Alternating current

DC Direct current

4

Vice Display

Main display for data

Vice display for data

Regular temperature (Celsius)

Regular temperature(Fahrenheit)

Battery power

Alarm clock

RANGE Range select

VOL Volume control

Bluetooth connection

5

Function Buttons

Press this button to select the multimeter’s range or control the audio playback volume.

Press this button

to enter AC and DC

voltage and frequency measurement mode.

AC voltage: 750V. The main display shows the voltage and the

secondary display shows the frequency.

DC voltage: 1000V.

Press this button

to enter the AC and

DC millivolt voltage and frequency

measurement mode.

DC voltage: 199.99mV.

AC voltage: 199.99mV.

Press this button

to enter the resistance

measurement mode. Resistance: 199.99M.

6

Function Buttons

Press this button

to enter the

capacitance measurement Capacitor: 100mF.

mode.

Press this button

to enter the diode/on-

off measurement mode.

Continuity: The buzzer sounds when it is less than 50.

Diode: more than 3V will display ” ”

Press this button

to enter AC and DC

high current, AC and DC milliamp current

measurement mode.

DC high current: 19.999A. AC high current: 19.999A.

DC mA current: 199.99mA.

AC mA current: 199.99mA.

Press this button reading.

to keep the current

Press this button

to record the

maximum value and minimum value. Long

press to exit.

Press this button

to enter the relative

value measurement mode.

7

Function Buttons

Power Button

Setting Button. Short press to enter the clock setting and long press to enter the alarm clock setting. Short press to enter the next setting after entering the setting mode, and long press to exit the setting mode. (In the standby mode, you cannot enter the setting mode. If you need to set it, please wake up and then make the relevant settings.)

Increase the screen brightness. In the setting mode,
increase the clock/alarm setting value and select the
alarm on/off.

Decrease the screen brightness. In the setting mode,
decrease the clock/alarm setting value and select the
alarm on/off.

Switch the Celsius/Fahrenheit of the regular temperature.

Charging power connector (maximum input DC5V 2A)

8

Rotary Switch
· When using the multimeter, press the “VOL/RANGE” button to go to the RANGE mode and rotate to select the corresponding range.
· When using Bluetooth audio, press the “VOL/RANGE” button to go to VOL mode, rotate to control the playback volume.
· When the alarm is ringing, rotate to turn off the alarm. Note:
· 1. When the multimeter is standby, the audio playback volume can only be controlled by the rotary switch.
· 2. When charging or not placing the battery to play music, rotate to control the volume of 0-15 grades. When the battery is full or not charging, rotate to control the volume of 0-30 grades. 9

Input Terminals

A

Used for high current measurement (19.999A).

mA

Used for low current measurement (199.99mA)

COM

Common (return) terminal for all measurements.

Input terminal for the measurements of: 1. AC/DC voltage 2. Resistance 3. Capacitance 4. Frequency 5. Continuity 7. Diode

10

Measurements Instruction

Measure AC/DC Voltage

1.Turn the rotary switch to

or

, then

choose AC or DC Voltage range.

2. Connect the black test lead to the COM

Terminal and the red lead to the

Terminal.

3. Touch the probes to the correct test points of

the circuit to measure the voltage.

4. Read the measured voltage on the display.

· 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.Turn the rotary switch to

, then choose AC or

DC Current range.

2.Connect the black test lead to the COM

Terminal and the red test lead to the A (19.999A )or

mA (199.99mA).

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3. Press SEL to toggle between AC/DC.
4. Read the measured current on the display.
· Do not measure current that exceeds the extremes as indicated in the Specifications .
· Use the 19.999A range at the “A” terminal to test when you are measuring an unknown current. Then switch to the right terminal and the range regard to the value.
· Fobid testing voltage on this range, or the damage on meter or human body may happen. Please make sure knowing the ways to test current before testing.

Measure Resistance

1.Press

to switch to resistance range.

2.Connect the black test lead to the COM terminal and

the test lead to the

terminal.

3. Use the probe pin to contact two sides of 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.

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Test for Continuity

1.Press

to enter in continuity range.

2.Put the black test lead into COM terminal and the red

test lead into

terminal. Use the probe pin to

contact two sides of circuit to be tested .

3. The built-in beeper will beep when the resistance is

lower than 50, which indicates a short circuit.

· Do not input voltage at this setting.

Test Diodes

1. Press

twice to enter in diode range.

2. Put the black test lead into COM terminal and the

red test lead into

terminal.

3. Contact the read pin with the positive pole and

theblack lead pin with the negative pole of the

diode.

4. Read the forward bias voltage value on the display.

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5. 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. Press

to enter in capacitance range.

2. Put the black test lead into COM terminal and the

red test lead into

terminal.

3. Contact the read pin with the positive pole and

theblack lead pin with the negative pole of the

diode.

4. Read the measured capacitance value on the

display once the reading is stablized.

· Disconnect circuit power and discharge all capacitors before you test capacitance.

14

Measure frequency and duty cycle.

1. Press

or

to enter in frequency range.

2. Put the black test lead into COM terminal and the

red test lead into

terminal.

3. Touch the probes to the desired test points.

4. Read the measured frequency value on the display,

read the duty cycle value at the vice dipsplay.

· Press

to enter in AC voltage and frequency

range, test the frequency of AC voltage that

beyond 36V.

· Press

to enter in the AC mV range, test

the frequency of AC voltage that less than 36V.

Clock setting
Shortly press “MODE” to enter in clock setting mode,press ” ” and ” “to set hour number when it is twinkling,and then press “MODE”again to set minute number the same way as hour setting. Long press “MODE”to quit.

15

Alarm clock setting
Long press “MODE”to enter in alarm clock mode,when vice line shows alarm clock symbol and hour number begin twinkling,press ” “and ” ” to set hour number and minute number.Shortly press “MODE” to turn on or off alarm clock.Long press “MODE” to quit.
Play music by linking BlueTooth
1.Press “POWER” to turn on BlueTooth, when the BlueTooth symbol start twinkling, turn on mobile’s BlueTooth to search it and click to link it. Warning voice ringing when it link successfully. 2.The warning voice “dongdong” prompt to disconnect BlueTooth.
· The BlueTooth will be disconnected when in setting mode, it will connect again when quit setting mode.
· BlueTooth function will be closed if long time no operation. Turn on it again to link it.
16

Auto standby It will enter in standby mode if no operation in 15 minutes. At the time, mian line display time and vice line display regular temperature and battery capacity,etc. Please press “REL” to turn on it again when it had been turn off if you want to cancel auto standby. Auto standby canceld when buzzer warn 5 times. Charge and replace battery When it shows low battery and prompt by warn”dudu”. It should be charged or replaced battery. Before replacing battery, all measurement must be disconnected. Use screwdiver to open battery cover to replace bettery and then activate new battery to trun on.
· Because the lithium battery protection circuit is set inside the product, you need to re-plug the USB battery after the battery is replaced to activate the new battery.
· Please disconnect all measuring cables before replacing the battery, otherwise there is a possibility of endangering personal safety.
17

Replace the fuse

When the fuse blows or fails, follow the steps below to replace

the fuse:

1.Remove the test leads and turn off the power before

replacing the fuse.

2.Unscrew the four screws securing the back cover on the

back of the product and remove the back cover.

3.Remove the old fuse and replace it with a new one of the

same type.

4.Replace the back cover and tighten the screws.

Maintenance

Except for battery and fuse replacement, do not attempt to

repair the product or change the circuit unless you are

qualified and have the appropriate calibration, performance

testing, and service instructions.

Clean the Product

Wipe the product with a damp cloth and mild detergent. Do not

use abrasives or solvents. Dirtor moisture in the terminals can

affect readings.

*Remove the input signals before you clean the

product.

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Specifications

General Specifications

Display LCD Ranging

19999 counts Auto/Manual

Material

ABS+TPE

Update rate

3 times/ second

True RMS

Data hold

Backlight

Low battery Indicated

Auto power off

Mechanical Specifications

Dimension

200135105mm

Weight

895gwithout batter

Battery type Warrantly

18650 Lithum battery * 2 One year

19

Environmental Specifications

Operating

Temperature Humidity

0~40 75%

Storage

Temperature Humidity

-20~60 80%

20

Electrical Specifications Function Range Resolution

Accuracy

1.9999V 0.0001V

DC voltage 19.999V V 199.99V 1000.0V

0.001V 0.01V 0.1V

±(0.05%+3)

DC volatge 19.999mV 0.001mV mV 199.99mV 0.01mV

1.9999V 0.0001V

AC voltage 19.999V V 199.99V

0.001V 0.01V

±(0.3%+3)

750.0V 0.1V
19.999mV 0.001mV AC voltage
mV 199.99mV 0.01mV

Attention: Turn off music playing when use mV range, otherwise the accuracy will be affected.

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Function Rnage
DC current 1.9999A A 19.999A
DC current 19.999mA mA 199.99mA
AC current 1.9999A A 19.999A
AC current 19.999mA mA 199.99mA
199.99
1.9999k
19.999k
Resistance 199.99k
1.9999M
19.999M
199.99M

Resolution Accuarcy

0.0001A 0.001A

±(0.5%+30)

0.001mA 0.01mA

±(0.5%+10)

0.0001A 0.001A

±(0.8%+30)

0.001mA 0.01mA

±(0.8%+10)

0.01

±(0.5%+3)

0.0001k

0.001k ±(0.2%+3)

0.01k

0.0001M ±(1.0%+3)
0.001M

0.01M ±(5.0%+5)

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Function Range Resolution Accuarcy

9.999nF 0.001nF ±(5.0%+20)

99.99nF 0.01nF

999.9nF 0.1nF

Capacitance 9.999F 0.001F

±(2.0%+5)

99.99F 0.01F

999.9F 0.1F

9.999mF 0.001mF ±(5.0%+5)

99.99Hz 0.01Hz

999.9Hz 0.1Hz

Frequency

9.999kHz 0.001kHz 99.99kHz 0.01kHz

±(0.1%+2)

999.9kHz 0.1kHz

6.000MHz 0.001MHz

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Fuction Diode Continuity

Range

Resolution Accuarcy

BlueTooth speaker technology parameters

BlueTooth version Transfer distance
Rated power
Frequency response
range
Distortion
Signal to noise ratio

V5.0 10m 2 x 4W RMS 100Hz-18KHz 1% 76dB

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