ZOTEK ZT100 User manual

Hazardous Voltage
Earth
Double Insulated
Low Battery
Risk of Danger. Check the User Manual.
A. Introduction
ZT100 is a battery-powered, auto-ranging digital multimeter with a 4000 counts,
LCD display and backlight. It can be used to measure AC/DC voltage, AC/DC current,
resistance, capacitance, frequency, duty cycle, diode, and continuity.
B. Safety Information
To avoid possible electrical shock, fire, or personal injury, please read all safety
information before you use the product.
(1) Do NOT exceed the “maximum value” indicated in the Specification.
(2) Examine the connection of the test leads and the insulation of the product
before measuring voltage higher than 36V DC or 25V AC.
(3) Disconnect the test leads from the circuit before changing the mode。
(4) Misuse of mode or range can lead to hazards, be cautious. “OL” will be shown
on the display when the input is out of range.
(5) Safety symbols:
C. Specifications
- 1 - - 3 - - 4 -
- 2 -
Electrical Specifications
Function
Range
Resolution
Accuracy
MAX.Value
Other
DC Voltage
400.0mV
0.1mV
±(0.5%+4)
1000V
4.000V
0.001V
40.00V
0.01V
400.0V
0.1V
±(0.8%+4)
1000V
1V
AC Voltage
400.0mV
0.1mV
±(1.2%+4)
750V
40Hz-400Hz
4.000V
0.001V
40.00V
0.01V
400.0V
0.1V
750V
1V
±(1.5%+4)
DC Current
(A)
4.000A
0.001A
±(1.5%+4)
10A
10.00A
0.01A
DC Current
(mA)
40.00mA
0.01mA
400mA
400.0mA
0.1mA
AC Current
(A)
4.000A
0.001A
±(2.0%+4)
10A
40Hz-400Hz
10.00A
0.01A
AC Current
(mA)
40.00mA
0.01mA
400mA
400.0mA
0.1mA
Function
Range
Resolution
Accuracy
MAX.Value
Other
Resistance
400.0Ω
0.1Ω
±(0.8%+4)
40MΩ
4.000kΩ
0.001kΩ
40.00kΩ
0.01kΩ
400.0kΩ
0.1kΩ
4.000MΩ
0.001MΩ
40.00MΩ
0.01MΩ
±(2.0%+4)
Capacitance
4.000nF
0.001nF
±(5.0%+20)
200μF
40.00nF
0.01nF
±(3.5%+4)
400.0nF
0.1nF
4.000μF
0.001μF
40.00μF
0.01μF
200.0μF
0.1μF
Frequency
99.99Hz
0.01Hz
±(0.1%+2)
9.999MHz
999.9Hz
0.1Hz
9.999kHz
0.001kHz
99.99kHz
0.01kHz
999.9kHz
0.1kHz
9.999MHz
0.001MHz
Duty Cycle
1%~99%
0.1%
±(0.1%+2)
Diode
√
Continuity
√
1
2a
2b
3
4
5
6
ZT100 Digital Multimeter
User Manual
General Specifications
Display（LCD）
4000 counts
Ranging
Auto
Material
ABS
Update Rate
3 times/second
Ture RMS
×
Data Hold
√
Backlight
√
Low Battery Indication
√
Auto Power Off
√
Mechanical Specifications
Dimension
130*65*32mm
Weight
130g
Battery Type
1.5V AAA Battery * 2
Warranty
One years
Environmental Specifications
Operating
Temperature
0~40℃
Humidity
＜75%
Storage
Temperature
-20~60℃
Humidity
＜80%
Safety Specifications
EN 61010-1: 2010; EN 61326-1: 2013; FCC Part 15 Sbupart: 2016
Standard Accessories
Battery * 2pcs; Test Lead * 1 pair; English User Manual; Gift Box
D. Instruction
(1) Front Panel（see the picture on the right）
1. LCD display
2. Bottons
2a. HOLD: To hold the current reading, press this
button and you will see “HOLD” on the display;
press again to cancel. To turn on the backlight,
press this botton for more than 2 seconds;
long-press again to turn off.
2b. SELECT: To toggle between AC/DC,
Resistance/Diode/Continuity/Capacitance, or
Frequency/Duty Cycle, press this botton.
3. Rotary Switch: To change mode or range。
(from OFF, clockwise)
3a. OFF
3b. AC Voltage
3c. DC Voltage
3d. Resistance/Diode/Continuity/Capacitance
3e. Frequency/Duty Cycle
3f. AC/DC Current (A) (Current-A Mode)
3g. AC/DC Current (mA) (Current-mA Mode)
3h. OFF
4. VΩHz: Input terminal for voltage, resistance,
capacitance, frequency, current (mA),
continuity, diode, and duty cycle
measurements.
5. COM: Common terminal for all measurements.
6. 10A: Input terminal for current (A) measurements.
(2) Measure AC/DC Current
1. Connect the black test lead to the COM Terminal and connect the red test lead
to the VΩHz Terminal or the 10A Terminal (choose based on the value of
current) ;
2. Turn the rotary switch to the Current-A Mode or the Current-mA Mode;
3. Press SELECT to toggle between AC/DC;
4. Break the circuit path to be measured. Then connect the test leads across the
break and apply power;
5. Read the measured current on the display.
*Caution:
a. Do not measure current that exceeds the MAX Value as indicated in the
Specifications;
b. Use the 10A Terminal and the Current-A Mode when you are measureing an
unknown current. Then switch to the VΩHz Termianl and the Current-mA Mode if
necessary.
Do not input voltage exceeds 36V DC or 25V AC when you are at the
setting of measuring current.

- 5 - - 7 - - 8 -
- 6 -
(7) Measure Capacitance
1. Connect the black test lead to the COM Terminal and connect the red test lead to the
VΩHz Terminal;
2. Turn the rotary switch to the Resistance Mode, press SELECT three times to toggle to
the Capacitance Mode;
3. Connect the red probe to the anode side and the black probe to the cathode side of
the capacitor being tested;
4. Read the measured capacitance value on the display once the reading is stablized.
*Caution:
a. Disconnect circuit power and discharge all capacitors before you test capacitance.
(8) Measure Frequency and Duty Cycle
1. Connect the black test lead to the COM Terminal and connect the red test lead to
the VΩHz Terminal;
2. Turn the rotary switch to the Frequency Mode; press SELECT once to toggle to the
Duty Cycle Mode if you want to measure duty cycle;
3. Touch the probes to the desired test points of the circuit;
4. Read the measured frequency/duty cycle value on the display.
*Caution:
a. The Frequency Mode only applies to measure high frequency with low voltage.
(9) Auto Power Off
1. The product automatically powers off after 15 minutes of inactivity;
2. The built-in beeper beeps 5 times 1 minute before power off;
3. To restart the product, press SELECT botton;
4. To disable the Auto Power Off function, hold down the SELECT botton when
turning on the product, you will hear five beeps if you have successfully disabled
the function.
E. Genearl 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.
(1) Do not operate the product around hot, wet, flammable, explosive or magnetic
environments.
(2) Clean the product with damp cloth and mild detergent; do not use abrasives or
solvents.
(3) Remove the input signals before you clean the product.
(4) Remove the batteries if you will not use the product for a long time to prevent
possible battery leak.
(5) When “ ” is shown on the display, batteries shall be replaced as below:
1. Loosen the screw and remove the battery cover;
2. Replace the used batteries with new batteries of the same type;
3. Place the battery cover back and fasten the screw.
(6) Replace fuses as above steps. Use only fuses of the same type as the original
ones.
(3) Measure AC/DC Voltage
1. Connect the black test lead to the COM Terminal and connect the red test lead to
the VΩHz Terminal;
2. Turn the rotary switch to the AC Voltage Mode or the DC Voltage Mode;
3. Touch the probes to the correct test points of the circuit to measure the voltage;
4. Read the measured voltage on the display.
*Caution:
a. Do not measure voltage that exceeds the MAX Value as indicated in the
Specifications;
b. Do not touch high voltage circuit during measurements.
(4) Measure Resistance
1. Connect the black test lead to the COM Terminal and connect the red test lead
to the VΩHz Terminal;
2. Turn the rotary switch to the Resistance Mode, and the display will show “OL”;
3. Touch the probes to the desired test points of the circuit to measure the
resistance;
4. Read the measured resistance on the display.
*Caution:
a. Disconnect circuit power and discharge all capacitors before you test resistance.
b. Do not input voltage at the Resistance Mode.
(5) Measure Diode
1. Connect the black test lead to the COM Terminal and connect the red test lead to
the VΩHz Terminal;
2. Turn the rotary switch to the Resistance Mode, press SELECT once to toggle to
the Diode 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 forward bias voltage value on the display;
5. If the polarity of the test leads is reversed with diode polarity or the diode is
broken, the display reading shows “OL”.
*Caution:
a. Do not input voltage at the Diode Mode.
b. Disconnect circuit power and discharge all capacitors before you test diode.
(6) Measure Continuity
1. Connect the black test lead to the COM Terminal and connect the red test lead to
the VΩHz Terminal;
2. Turn the rotary switch to the Resistance Mode, press SELECT twice to toggle to
the Continuity Mode;
3. Touch the probes to the desired test points of the circuit;
4. The built-in beeper will beep when the resistance is lower than 50Ω, which
indicates a short circuit.
*Caution:
a. Do not input voltage at the Continuity Mode.
Warning：
1. Do NOT exceed the “maximum value” indicated in the Specification;
2. Do NOT input voltage at the Current Mode, the Resistance Mode, the Diode
Mode, or the Continuity Mode;
3. Do NOT use the product when the batteries or the battery cover is not placed
properly;
4. Turn off the product and remove the test leads from the test points before
changing batteries or fuses.
F. Troubleshooting
If your product do not function as normal, the following steps may help you. If the
problem still cannot be solved, please contact your dealer.
Problem
Possible Reason
Display Mulfunction
Low battery; replace batteries
Symbol
Replace batteries
No current input
Replace fuse
LIMITED WARRANTY
AND LIMITATION OF LIABILITY
Customers enjoy one-year warranty from the date of purchase. This warranty
does not cover fuses, disposable batteries, or damage from accident, neglect,
misuse, alternation, contamination, or abnormal conditions of operation or
handling.
All rights reserved. Specifications are subject to change without notice.