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User Manual for ProsKit models including: MT-1820N, VC97, MT-1820N 3 5-6 True RMS Auto Range Multimeter, MT-1820N, 5-6 True RMS Auto Range Multimeter, RMS Auto Range Multimeter, Auto Range Multimeter, Range Multimeter
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DocumentDocumentMT-1820N 3 5/6 True-RMS Auto Range Multimeter
User's Manual 1st Edition, 2024
©2024 Copyright by Prokit's Industries Co., Ltd.
I. INTRODUCTION
The instrument is a stable and highly reliable 3 5/6-digit multi-meter, it uses the LCD with 33mm high figure to make the reading clear, the display intuitive and the operation convenient. The instrument can measure DC and AC voltage, DC and AC current, Resistance, Capacitance, Temperature, Frequency, Duty Circle, Electromagnetic induction, Live wire judgment, Transistor, Diode and Continuity test. At the same time, it is also designed with 61 segments of analog bar display, unit symbol display, data hold, relative value measurement, USB computer interface, auto/manual range conversion, auto power off and alarm functions. The instrument adopts a 4-bit microprocessor that can directly drive LCD and a dual integral A/D conversion integrated circuit, which provide a high solution and high accuracy digital displaying driver. The instrument has complete functions, high measurement accuracy, and is easy to use. It is an ideal tool for laboratories, factories, radio enthusiasts, and households.
II. OPEN THE PACKAGE FOR CHECKING
Open the box, take out the meter, checking the items below whether they are
missing or damaging: K type probe (-20~250) 1pc
Multi-function socket
1pc
Test leads USB CableTYPE-C
1pair 1pc
CD software
1pc
User manual
1pc
Please contact with your supplier if you find out any problems.
III. Safety Operation Guidelines
This series meter meets the standard of IEC61010 (the safety standards request issued by IEC or equal GB4793.1 standards). Read it before operation. 1. Input over range is prohibited in each range during the test. 2. Measure voltage above 24V, current above 10mA, and AC power lines with
inductive loads; Be cautious of electric shock when measuring AC power lines during power fluctuations. 3. When changing function and range, test leads should be removed from
1
testing point.
4. Select correct function and range, beware of wrong operation. Please still
be careful although the meter got a function of full range protection.
5. Do not operate the meter if the battery and back cover is not fixed.
6. Measure resistance, capacitance, temperature, diode, on/off test, do not
input voltage signals.
7. Remove test leads from test point and turn off the power before replacing
battery and fuse.
8. Please comply with local and national safety regulations. Wear personal
protective equipment (such as approved rubber gloves, face masks, and
flame-retardant clothing etc.) to prevent the injury from electric shock and
arc when charged conductors are exposed.
9. Make measurements using only the correct measurement standard class
(CAT), voltage and current rated probe, test conductor and adapter. 10Safety symbols:
" " exists high voltage " " GND
" " Dual Insulation
" " Must Refer to Manual " " " Low Battery
IV. SAFETY SYMBOLS
Warning!
DC
High voltage danger!
AC
Ground Dual insulation Low battery
AC and DC
Meets the direction of European IEC standard
Fuse
2
V. SPECIFICATIONS 1) Display mode: LCD display. 2) Max. indication: 59993 5/6 bits, auto polarity indication 3) Simulated bar 30 times/second, 61 segments of simulated bar
graph display. 4) Measuring method: Dual integral A/D conversion 5) Sampling rate: Approx. 3times/second 6) Over range indication: "OL" displays. 7) Low battery: The " " displays. 8) Operating environment: (0 ~ 40) , humidity<80%RH. 9) Storage environment:-10~50humidity<80%RH. 10) Power: Four 1.5V AAA batteries, LR03 11) Dimension: 189mm×88mm ×56mm. 12) Weight: approx. 380g (not include batteries). VI. EXTERNAL STRUCTUR
3
1. LCD display 2. Function knob 3. Measuring input terminal 4.. Measurement of maximum/minimum values 5. Function /Duty Cycle 6. Data hold/ backlight 7. Automatic/manual range 8. Select button 9. USB communication/relative value measurement 10. Screws for fixing the battery box. 11. Bracket 12. Test leads fixed frame 13. USB port (dust cover)
VII. LCD DISPLAY
USB communication connection AC true RMS measurement DC measurement Maximum measurement Minimum measurement Data hold Relative value measurement
4
Diode/on-off Low battery Manual measurement
11 Auto power-off 12 Auto range 13 Duty cycle, transistor 14 High pressure, Celsius, Fahrenheit 15 Voltagecurrentcapacitance 16 Ohms/kiloohms/megaohms/frequency 17 Simulate progress bar
VIII. KEY Function 1. HOLD: Keep the reading, press this button to display that the value is
locked, and then press this button again to unlock the status. Press and hold for more than 3 seconds to turn on or off the backlight. The backlight will automatically turn off for 2 minutes after being turned on.
Warning: to prevent possible electric shock, fire, or personal injury, do not use the data hold function to measure the unknown voltage. When open the HOLD function, the LCD will keep original data when measuring a different voltage. 2. Hz/DUTYFrequency/Duty Circle selection button, press the button in the
frequency gear can switch frequency and duty cycle testing; Press the button in the AC voltage or AC current gear can switch between AC voltage or current/ frequency/duty cycle tests.
3. SELECT: Function selection Short press this button to switch between AC
and DC voltage tests in the voltage range; Cyclic switching of resistance, diode, and on/off tests can be performed in resistance, diode, and on/off modes; Switch between Fahrenheit and Celsius testing in the temperature range; Switching between AC and DC current testing in current mode; You can switch between
5
electromagnetic induction and live wire detection tests in the electromagnetic induction and live wire detection modes.
4. MAX/MIN: Maximum and minimum value testing. Short press this function
to enter MAX mode, which maintains the maximum measured value. Press this button again to enter MIN mode, which maintains the minimum value. After entering MAX/MIN mode, the display will maintain the maximum or minimum value. Long press the MAX/MIN button for 2 seconds to exit MAX or MIN measurement. In the maximum/minimum measurement mode, the instrument will be locked to the current range. If the instrument displays OL, it indicates that the measured value has exceeded the current range.
5. RANGE: Automatic/manual range switching. When turned on, it defaults to
automatic range. Press this button to switch to manual range, and the screen displays the "RANGE" character. In manual range mode, each press of the gear range will jump up one gear, and when it reaches the highest gear, press this button again to jump back to the lowest gear, and cycle in sequence. If this key is pressed for more than 2 seconds, it will switch back to the automatic range and the "RANGE" character will disappear from the screen.
6. USB/REL: Short press this button to measure relative values, press again
to cancel relative value measurement. In relative value measurement mode, the instrument will be locked to the current range (except for the capacitance range). If the instrument displays OL, it indicates that the measured value has exceeded the current range. Long press this button for more than 2 seconds to activate the USB communication function. There is a communication symbol displayed on the LCD screen, indicating that USB data output is turned on. The instrument enters a data transmission state and can transmit data to the outside. Use the USB computer interface cable attached to the instrument to connect it to the computer, which can record, analyze, process, and print the measured data; If you press this button again for more than 2 seconds, the communication symbol will disappear from the LCD screen. At this time, the USB data output will be turned off, and the data transmission status will stop. The instrument does not have an automatic shutdown function in communication mode.
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IX. MEASUREMENT OPERATION INSTRUCTIONS First please pay attention to check the battery, put the knob in the desired measurement position, if it is with low battery, the LCD display will appear " " symbol. Note the symbol " " next to the test lead jack which warns you to pay attention to the test voltage and current, do not exceed the indicated value. 1. DCV and ACV measurement 1-1. Turn the knob to the AC/DC voltage range, and the instrument will
start in automatic range DC voltage mode, displaying the "AUTO" symbol. Press the "RANGE" button to switch to manual range mode. To measure AC voltage, press the "SELECT" button to select the AC voltage. When measuring AC voltage, you can briefly press the Hz/DUTY button to switch to the accompanying frequency or duty cycle test. 1-2. Insert the red and black probes into the "VHz" and "COM" holes respectively. 1-3. Connect the test lead in parallel to the test point on the circuit under test and display the polarity of the red probe line and the voltage value under test on the screen simultaneously. Attention: (1) Do not measure DC voltage higher than 1000V or AC voltage higher than 750V. (2) Wear safety protective equipment when measuring voltages above 24V and be careful to avoid electric shock. Immediately disconnect the probe from the measured circuit after testing. (3) The manual range mode, such as LCD displaying "OL", indicates that the range has been exceeded. Please select a higher range gear to complete this measurement. 2. DC and AC current measurement 2-1. Insert the red probe into the "uA mA" or "10A" hole, and the black probe into the "COM" hole. Enter the maximum values of 600mA
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and 10A respectively. 2-2. Turn the knob to the current position, and the starting state of the
instrument is DC current mode. Press the "SELECT" button to select the AC current measurement method. When measuring AC current, short press the Hz/DUTY key to perform accompanying frequency or duty cycle testing. Then connect the instrument in series into the measured circuit, and the measured current value and the polarity of the red probe will be displayed on the screen simultaneously. 2-3. If "OL" is displayed on the display screen, it indicates that the measured current has exceeded the current range. Please select a higher range for measurement. Attention: (1) In the 10A range, currents greater than 10A cannot be measured. In the "uA" range, currents greater than 6000uA cannot be measured. In the "mA" range, currents greater than 600mA cannot be measured. Otherwise, the fuse may be blown, or the instrument may be damaged. (2) When the probe is inserted into the current input terminal, it is strictly prohibited to connect the probe in parallel with any circuit, otherwise it may damage the instrument and endanger user safety. After completing all measurements, immediately disconnect the probe from the measured circuit. 3. Resistance measurement 3-1. Turn the knob to the " " position, and the default on/off test will be performed upon startup. Short press the "SELECT" button to cycle through on/off, diode, and resistance tests. Insert the red and black probes into the "VHz" and "COM" holes respectively. 3-2. Connect the test end of the probe in parallel to the measured resistance, and the measured resistance will be displayed on the screen.
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3-3. Press the "RANGE" button to select the manual range operation mode.
3-4. If the display shows "OL", it indicates that the current range has been exceeded. Please select a higher range to complete. Attention:
(1) When measuring resistance, all power sources in the tested circuit must be turned off first, and all capacitors must be fully discharged.
(2) When measuring resistance, the presence of any voltage can cause inaccurate readings. If the protection voltage exceeds 250V, it may damage and endanger the safety of the user.
(3) When using 600 range, the probe should be short circuited first to measure the lead resistance, and then the relative value can be measured by short pressing the "USB/REL" button.
4. Diode and continuity test 4-1. Turn the knob to the " " position, and the instrument will perform a default on/off test when turned on, as shown in the figure. 4-2. Insert the red and black probes into the "VHz" and "COM" input terminals respectively, and then press the "SELECT" button to select the diode or on/off measurement. 4-3. Diode measurement: Connect the red probe to the positive pole of the diode and the black probe to the negative pole of the diode and read the result from the display screen. 4-4. On/off measurement: Connect the watch pen to both ends of the line to be tested. If the resistance value between the two ends is less than about 50, the built-in buzzer will sound. Attention:
(1) If the diode is open circuit or polarity is reversed, "OL" will be displayed on the display screen.
(2) When checking the diode, all power sources in the tested circuit must be disconnected first, and all capacitors must be fully discharged.
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(3) After completing the measurement, immediately disconnect the probe from the measured circuit.
5. Capacitance Measurement 5-1. Turn the knob to the capacitor position and insert the red and
black probe wires into the "VHz" and "COM" input terminals respectively. 5-2. Connect the test end of the probe wire in parallel to the measured capacitance, and the measured capacitance value will be displayed on the display screen. 5-3. If the display screen shows "OL", it indicates that the measured capacitance value has exceeded the current range, or the capacitance is short circuited. 5-4. Read the current result from the display screen. Attention: (1) When measuring capacitance, all power sources in the tested circuit must be disconnected first, and all capacitors must be fully discharged. (2) When measuring large capacitance, it takes a long time, about 6 seconds at 100uF. (3) After completing all measurements, immediately disconnect the probe from the measured circuit. (4) UNIT: 1mF=1000uF 1uF =1000nF 1nF=1000pF 6. Frequency/Duty cycle measurement 6-1. Turn the knob to the "Hz" position. Insert the red and black probe into the "VHz" and "COM" input terminals respectively. 6-2. Connect the test end of the probe wire in parallel to the signal source to be tested and read the result from the display screen. 6-3. When performing frequency measurement, short press the "Hz/DUTY" button to cycle between frequency and duty cycle tests. 6-4. When conducting AC current and voltage measurements, press the "Hz/DUTY" button to enter frequency measurement, then press
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the "Hz/DUTY" button again to enter duty cycle measurement, and press the "Hz/DUTY" button a third time to return to the original measurement state. Attention: (1) Do not input signals higher than 60V, otherwise it may damage the instrument and endanger personal safety. (2) After completing all measurements, immediately disconnect the probe from the measured circuit. 7. Triode measurement 7-1. Turn the knob to the "hFE" position. 7-2. Insert the transistor accessory into the "uAmA" and "COM" holes. 7-3. Insert the "E B C" hole corresponding to the "NPN" or "PNP" of the transistor accessory according to the model of the tested transistor. 7-4. Read the results from the display screen. Attention: It is strictly prohibited to input voltage signals into the "uAmA", "COM", and transistor accessory holes, otherwise it may damage the instrument and endanger user safety. 8. Temperature measurement 8-1.Turn the knob to the "" position.
8-2.Insert the input end of the temperature probe into "COM" and "V Hz", and the positive end into "VHz". Place the sensing end of
the temperature probe on the surface of the measured object, as shown in the figure. 8-3.Read the current measurement result from the display screen. 8-4.Press "SELECT" to select Fahrenheit, then press "SELECT" to select Celsius, and cycle through them one by one. Attention: (1) When the input terminal is open, it displays room temperature. (2) Please do not replace the vorticity sensor casually, otherwise the
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accuracy of the measurement cannot be guaranteed. (3) It is strictly prohibited to input voltage in the temperature range,
otherwise there is a risk of damaging the instrument! 9. Non-contact voltage induction measurement (NCV) 9-1.Turn the knob to "NCV/Live" position, which defaults to the NCV
function and corresponds to the LCD display of EF. 9-2.The NCV induction voltage range is 48V~220V. Place the upper
part of the instrument close to the tested live AC power line. When the AC voltage is sensed, the red indicator light on the upper part of the instrument will flash and the buzzer will sound a "drip" alarm. The closer it is to the AC power line, the stronger the induced AC voltage, and the corresponding flashing indicator light and buzzer alarm will sound faster.
10. Live line recognition 10-1. Insert the red probe into the "VHz" socket. 10-2. Turn the knob to the "NCV/Live" position, short press the
SELECT key to switch to the Live function, and the LCD will display LIVE. 10-3. Use a red probe to contact the tested position or socket. If there is an audible and visual alarm, the tested point is a live wire. If there
12
is no change, the tested point is a zero wire or not powered on. 11. Automatic power on/off After the instrument is stopped for 15 minutes, it will automatically shut down (power off) and enter a sleep (power off) state. One minute before the power off, the built-in buzzer will sound 5 prompts. After one minute, a long sound will enter a sleep (power off) state. Short press the "SELECT" button in sleep mode to wake up the instrument. Press the "SELECT" button to turn on the device, and the instrument will enter the cancel automatic shutdown mode. 12. Communication connection (USB data transfer operation) 12-1. Open the USB dust cover on the front end of the instrument panel. 12-2. Connect the USB data cable to the instrument USB port and
connect it to the computer USB interface. 12-3. Open the upper software and set the COM port. Long press the
"USB/REL" button on the instrument panel to enable communication function. At this time, the instrument panel displays communication symbols, which can be used for upper computer software transmission and data saving. If communication function is not used, long press the "USB/REL" button to turn off communication function. In communication mode, the instrument panel cancels the automatic shutdown function.
X. Technical characteristics Accuracy: ± (a% × reading + digit) Environment temperature: (23±5) Relative humidity: <75%RH. One year guarantee since production date.
1. DC Voltage Range Accuracy
Resolution
13
Input impedance
Overload protection
600mV 6V 60V 600V 1000V
±(0.5%+4d) ±(1.0%+6d)
0.1mV 0.001V 0.01V 0.1V
1V
About 10M
1000V DC / 750V AC RMS
2. AC Voltage (True RMS measurement)
Range
Accuracy
Resolution
Input impedance
Overload protection
6V
0.001V
60V ±(0.8%+10d)
0.01V
About
1000V DC /
600V
0.1V
10M
750AC RMS
750V ±(1.0%+10d)
1V
Frequency response: Sinusoidal and triangular waves 40Hz~1kHz.
Display: True RMS value of voltage; The accuracy is 5% to 100% of
the range. Voltage range short circuit allows for a base number of 5 words;
Duty cycle display: (0.1% to 99.9%).
The frequency and duty cycle test amplitude of AC voltage should be 1V
3. DC Current
Range
Accuracy
Resolution Overload protection
600uA
0.1uA
6000uA 60mA
±(1.0%+10d)
1uA 0.01mA
FUSE 0.6A/250V
600mA
0.1mA
6A ±(1.2%+10d)
10A
0.001A 0.01A
FUSE 10A/250V
Maximum input current :10A (no more than 15 seconds). Accuracy is 5% to 100% of the range.
14
4. AC Current (True RMS)
Range
Accuracy
Resolution
Overload protection
600uA
0.1uA
6000uA 60mA
±(1.5%+10d)
1uA 0.01mA
FUSE 0.6A/250V
600mA
0.1mA
6A
±(2.0%+15d)
10A
0.001A 0.01A
FUSE 10A/250V
Maximum input current :10A(no more than 15 seconds); Accuracy is 5% to 100% of the range Frequency response: Sinusoidal and triangular waves 40Hz~1kHz; Duty cycle display: (0.1% to 99.9%); AC current accompanied by frequency and duty cycle test, uA level 300uA, mA level 30mA, A level 3A
5. Resistance
Range Accuracy
Resolution
Open-circuit voltage
overload protection
600 ± (0.8%+5d)
0.1
6K 60K 600K 6M 60M
± (0.8%+4d) ± (1.2%+10d)
0.001K 0.01K 0.1K 0.001M 0.01M
About 1V About 0.5V
250VDC/AC RMS
6. Capacitance Range 60nF 600nF 6uF
Accuracy ±(5.0%+30d)
±(3.5%+8d)
Resolution 0.01nF 0.1nF 0.001uF
15
Overload protection 250VDC/AC RMS
60uF
0.01uF
600uF 6mF
±(5.0%+10d)
0.1uF 0.001mF
60mF
0.01mF
99.9mF
referenced
0.1mF
Measuring range of accuracy: 10% - 100% of the range
Large capacitance response time: 1uF about 8s
Measurement error does not include lead distribution capacitance.
7. Frequency / Duty Cycle
Range
Accuracy
Resolution
Overload protection
10Hz
0.01Hz
100Hz
0.1Hz
1kHz 10kHz
±(0.5%+4d)
0.001kHz 0.01kHz
250VDC/AC RMS
100kHz
0.1kHz
1MHz
0.001MHz
30MHz
0.01MHz
Input sensitivity: 3Vpp. Duty cycle display: (0.1% -99.9%)
Frequency input amplitude requirement: 10Hz-100kHz: 1Vrms Input
amplitude 20Vrms. 100kHz -30MHz: 3Vrms Input amplitude 20Vrms.
Duty cycle: within the range of 10% -90%, suitable for square waves of 10Hz-
1kHz. 30% -70% range, suitable for square waves of 1KHz-30MHz. Input amplitude: 1Vrms Input amplitude 20Vrms
8. Diode and continuity Test
range
show value
test condition
Diode forward voltage drop
The forward DC current is about 1.6mA, and the reverse voltage is about 3.0V
16
The buzzer makes a long sound, and the resistance value of the test two points is about
50
Open circuit voltage: approx. 1V
Warning: Do not input voltage at this range.
Overload protection: 250V DC/AC RMS
9. Transistor testing
range
hFE NPN or PNP
display range
0~1000
test condition
The base current is about 1mA, and the VCE is about
1V
10. Temperature range
-20~400
400~1000
accuracy ±(1.0%+5) ±(1.5%+15)
resolution 1 1
-4~752
±(1.0%+5)752
1
752~1832
±(1.5%+15)752
1
Sensor: Type-K thermocouple (Ni-Cr Ni-Si) banana probe
XI. Replace the battery or fuse. Refer to Figure 12 and follow the steps below:
1. Move away the test leads from the circuit under test, pull out the test lead from the input jack, turn the range knob to the "OFF" range to turn off the power.
2. Use a screwdriver to twist off the screws on the battery cover and remove the battery cover and bracket.
3. Take out the old battery or the broken fuse, then replace with a new alkaline battery or a new fuse.
4. Close the battery cover and use a screwdriver to tighten the screws on the
17
battery cover. 5. Battery specifications:4 * 1.5V AAA alkaline batteries 6. Fuse specifications:
mA input fuse "FS1": 5 x 20mm 600mA 250V 10A input fuse "FS2": 5 x 20mm 10A 250V Note: When the low voltage " " symbol displays on the LCD, the battery should be replaced immediately, otherwise the measuring accuracy will be affected.
XII. Instrument Maintenance It is an accurate meter. Do not try to modify the electric circuit. 1. Pay attention to the waterproof, dustproof and break proof of the meter. 2. Please do not store or use it in environment of high temperature, high humidity, high flammability or strong magnetic. 3. Please wipe the meter with a damp cloth and soft detergent, and abrasive and drastic solvent such as alcohol are forbidden. 4. If do not operate for a long time, should take out the battery to avoid leakage. 5. When replacing fuse, please use another same type and specification fuse.
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XIII. Trouble Shooting If your meter is not working properly, the following methods can help you Quick resolution of a - general problem. If the fault still cannot be removed, please contact the repair center or dealer.
Fault phenomenon Not display
Appear
symbol
Current no input
Large display error
Display Dark
Check the site and method Power not connected Keep switch Change battery Change battery
Change fuse Change battery Change battery
This user's manual is subject to any change without further notice. The content in this user's manual is deemed correct; if you find any mistake, omission, etc., please contact the manufacturer. We will not be held liable for any accidents or harms caused due to your wrong operations. The functions set forth in this user's manual shall not be regarded as reasons for applying this product for special purposes.
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3-5/6
MT-1820N 3 5/6 33mm LCD
DCV ACV DCA ACA NCV Live 61 USB / LCD 4 A/D
x1 K x1 / x1 USB Type-C x1 x1 CD x1
IEC61010 1. 2. 24V 10mA 3. 4. 5. 6. 7. 8. 9. CAT 10.
" ",
" "
" "
20
" " "
"
!
CE
59993 5/6
30 /61
A/D
3
"OL"
"
"
0 40< 80 RH
-10 50< 80 RH
1.5V AAAx4LR037
189× 88× 56
380
21
1. LCD 3. 5. / 7. / 9. USB/ 11. 13.Type-C USB
2. 4. / 6. / 8. 10. 12.
1 USB 3 5 7 9 11 13 15 17
2 4 6 8 / 10 12 14 / 16 :/K/M:Hz
1."HOLD":,"HOLD" "HOLD"
HOLD HOLD
22
"HOLD" LCD 2."Hz/DUTY": Hz
3."SELECT":
NCV/Live 4."MAX/MIN": MAX
MIN MAX/MIN MAX/MIN
"OL" 5."RANGE":/
AUTO"Range",
"RANGE" "RANGE"
"AUTO" 6."REL/USB":"REL"
"OL" 2 , USB USB
USB Type-C USB
"
"
"
1.
""
"
1.1"VHz" COM
1.2 V
1.3
1.4"AUTO""RANGE"
23
1.5"SELECT"
1.6"Hz/DUTY"
DC1000V AC750V 24V
"OL",
2.
2.1"AmA" 600mA 10A 10A
COM 2.2A/mA/A 2.3
2.4 2.5"SELECT"
"RANGE"
2.6. "Hz/DUTY"
A 6000A mA 600mA 10A 10A 10A 10 10A 10
3.
3.1. "
" 24
3.2. "VHz" COM
3.3.
3.4. "RANGE"
3.5. "OL",
250V
600
"USB/REL"
4.
4.1." " 4.2."VHz""COM""SELECT" 4.3. "OL". 4.4. 50
"OL".
5.
5.1. "VHz" COM . 5.2. 5.3. "OL",
100uF 6
6. /
6.1 "Hz""VHz" COM . 6.2 6.3 "Hz/DUTY""""" 6.4 "Hz/DUTY"""" ""/"
25
60V
7. hFE
7.1. "hFE" 7.2. hFE "AmA ""COM". 7.3 NPN PNP 7.4.
"AmA" "COM"
8.
8.1."/"" " "SELECT"" "
8.2."VHz""COM"
8.3.
9. NCV
9.1."NCV/Live" NCV LCD EF. 9.2.AC 48V~220V LED LED LED
10. Live
10.1."NCV/Live""SELECT" Live , LIVE
10.2."VHz" LED
26
11.
APO 14 3 1 "SELECT"
APO, "SELECT""APO" ""
12. USB
12.1. CD . 12.2. USB 12.3. USB TYPE-C USB 13.4. COM "USB/REL" 13.5"USB/REL"
27
+
18 28 75
(DCV)
600mV
0.1mV
6V
±(0.5%+4)
0.001V
60V
0.01V
600V
0.1V
1000V
±(1.0%+6 ) 1V
5% 100%
V (ACV True RMS)
10M
1000V DC/ 750VAC RMS
6V 60V 600V 750V
±(0.8%+10 ) ±(1.0%+10 )
0.001V 0.01V 0.1V 1V
10M
1000V DC 750V AC RMS
40Hz1kHz
5%100%
5
0.1%99.9%
1V
(DCA)
600uA
0.1uA
6000uA 60mA
±(1.0%+10 )
1uA 0.01mA
FUSE 600mA/250V
600mA
0.1mA
6A
±(1.2%+10 )
10A
0.01A 0.1A
FUSE 10A/250V
10A 10 15
(ACA True RMS)
600uA
0.1uA
6000uA
±(1.5%+10 )
1uA
60mA
0.01mA
FUSE 600mA/250V
28
600mA 6A 10A
±(2.0%+15 )
0.1mA 0.01A 0.1A
FUSE 10A/250V
10A 15 5%100%
40Hz- 1kHz
0.1%99.9%
A 300mA 30mAA 3A.
()
600 ±(0.8%+5 ) 0.1
6K
0.001K
60K 600K
±(0.8%+4 )
0.01K 0.1K
1V
250V DC/AC RMS
6M
0.001M
60M ±(1.2%+10 ) 0.01M
0.5V
(F)
60nF 600nF 6uF 60uF 600uF 6mF 60mF 99.9 mF
±(5.0%+30 ) ±(3.5%+8 )
±(5.0%+10 )
0.01nF 0.1nF 0.001uF 0.01uF 0.1uF 0.001mF 0.01mF 0.1mF
250V DC/AC RMS
1mF 8
(Hz)
10Hz 100Hz 1KHz 10kHz 100kHz
±(0.5%+4 )
0.01Hz 0.1Hz 0.001KHz 0.01KHz 0.1KHz
250V DC/AC RMS
29
1MHz
0.001MHz
30MHz
0.01MHz
3Vpp0.1%99.9%
:10Hz-100KHz,1Vrms20Vrms
100kHz-30MHz: 3Vrms 20Vrms;
10% -90% 10Hz1kHz ;
30% -70% 1KHz-30MHz ;
1Vrms20Vrms
, 50.
1.6mA. 3.0V.
1V
250V DC/AC RMS
(/)
-20-400
±(1.0%+5 )
400-1000
±(1.5%+15 )
-4-752
±(1.0%+5 )
752-1832
±(1.5%+15 )
1 1
250V DC/AC RMS
K -
hFE
NPN or PNP
0~1000
1mA, Vce .1V
1."OFF" 2. PH0 3. 1.5V 4. 5.
mA "FS1":5x20mm 400mA 250V
30
10A "FS2":5x20mm 10A 250V LCD " "
1. 2. 3. 4. 5.
1. 2
" "
31
3-5/6
MT-1820N (3 5/6
33mm LCD
DCV ACV DCA ACA
NCV
Live 61
USB /
LCD 4 A / D
x1
K
x1
/
x1
USB Type-C
x1
x1
CD
x1
IEC61010 GB4793.1
1.
2. 24V 10mA
3.
4.
5.
6.
7.
8.
9. CAT
10.
" ", " "
" "
" " "
"
32
!
CE
59993 5/6
30 /61
A/D
3
"OL"
"
"
0 40< 80 RH
-10 50< 80 RH 1.5V AAAx4LR037 189× 88× 56 380
33
1. LCD 3. 5. / 7. / 9. USB/ 11. 13.Type-C USB
2. 4. / 6. // 8. 10. 12.
1 USB
2
3
4
5
6
7
8 /
9
10
11
12
13 14 /
15
16 :/K/M:Hz
17
1."HOLD":,"HOLD" "HOLD"
HOLD HOLD
34
"HOLD" LCD 2."Hz/DUTY": Hz
3."SELECT": NCV/Live 4."MAX/MIN": MAX MIN MAX/MIN MAX/MIN "OL" 5."RANGE":/ AUTO"Range", "RANGE" "RANGE" "AUTO" 6."REL/USB":"REL" "OL" 2 , USB USB USB Type-C USB
"
"
"
""
"
1.
1.1"VHz" COM
1.2 V
1.3
1.4"AUTO""RANGE"
35
1.5"SELECT" 1.6"Hz/DUTY" DC1000V AC750V 24V "OL",
2.
2.1"AmA" 600mA 10A 10A
COM
2.2A/mA/A
2.3
2.4
2.5"SELECT" "RANGE"
2.6.
"Hz/DUTY"
A 6000A mA 600mA 10A 10A 10A 10
3.
3.1. "
""SELECT" 36
3.2. "VHz" COM
3.3.
3.4. "RANGE"
3.5. "OL",
250V
600
"USB/REL"
4. /
4.1." " 4.2."VHz""COM""SELECT" 4.3. "OL". 4.4. 50
"OL".
5.
5.1. "VHz" COM . 5.2. 5.3. "OL",
100uF 6
6. /
6.1 "Hz""VHz" COM . 6.2 6.3 "Hz/DUTY""""" 6.4 "Hz/DUTY"""" ""/"
37
60V
7. hFE
7.1. "hFE" 7.2. hFE "AmA ""COM". 7.3 NPN PNP 7.4.
"AmA" "COM"
8.
8.1. " / " " " "SELECT"""
8.2."VHz""COM"
8.3.
9. NCV
9.1."NCV/Live" NCV LCD EF. 9.2.AC 48V~220V LED LED LED
38
10. Live
10.1."NCV/Live""SELECT" Live , LIVE
10.2."VHz" LED
11.
APO 14 3 1 "SELECT"
APO"SELECT""APO" ""
12. USB
12.1. CD . 12.2. USB 12.3. USB TYPE-C USB 13.4. COM "USB/REL" 13.5"USB/REL"
+ 18 28 75
39
(DCV)
600mV
0.1mV
6V 60V
±(0.5%+4 ) 0.001V 0.01V
10M
600V
0.1V
1000V
±(1.0%+6 ) 1V
5% 100%
(ACV True RMS)
6V 60V 600V 750V
±(0.8%+10 ) ±(1.0%+10 )
0.001V 0.01V 0.1V 1V
10M
40Hz1kHz 5%100% 5 0.1%99.9% 1V
(DCA)
600uA
0.1uA
6000uA 60mA 600mA
±(1.0%+10 )
1uA 0.01mA 0.1mA
6A
±(1.2%+10 )
10A
0.01A 0.1A
10A 10 15
(ACA True RMS)
600uA
0.1uA
6000uA 60mA
±(1.5%+10 )
1uA 0.01mA
600mA
0.1mA
40
1000V DC/ 750VAC RMS
1000V DC 750V AC RMS
FUSE
600mA/250V FUSE
10A/250V
FUSE
600mA/250V
6A
±(2.0%+15 )
10A
0.01A 0.1A
FUSE 10A/250V
10A 15 5%100% 40Hz- 1kHz 0.1%99.9% A 300mA 30mAA 3A.
()
600 ±(0.8%+5 ) 0.1
6K
0.001K
60K 600K
±(0.8%+4 )
0.01K 0.1K
1V
250V DC/AC RMS
6M
0.001M
60M ±(1.2%+10 ) 0.01M
0.5V
(F)
60nF 600nF 6uF 60uF 600uF 6mF 60mF 99.9mF
±(5.0%+30 ) ±(3.5%+8 )
±(5.0%+10 )
0.01nF 0.1nF 0.001uF 0.01uF 0.1uF 0.001mF 0.01mF 0.1mF
250V DC/AC RMS
1mF 8
(Hz)
10Hz 100Hz 1KHz 10kHz 100kHz
±(0.5%+4 )
0.01Hz 0.1Hz 0.001KHz 0.01KHz 0.1KHz
41
250V DC/AC RMS
1MHz 30MHz
0.001MHz 0.01MHz
3.0Vpp. 0.1%99.9% 10Hz-100KHz,1Vrms20Vrms
100KHz-30MHz,3Vrms20Vrms 10%90% 10Hz-1KHz
30%70% 1KHz-30MHz 1Vrms20Vrms
, 50.
1.6mA. 3.0V.
1V
250V DC/AC RMS
hFE
NPN or PNP
01000
1mA, Vce .1V
(/)
-20-400 400-1000 -4-752 752-1832
±(1.0%+5 ) ±(1.5%+15 ) ±(1.0%+5 ) ±(1.5%+15 )
K -
1 1
250V DC/AC RMS
1."OFF" 2.PH0 3. 1.5V 4. 5.
42
mA "FS1":5x20mm 600mA 250V 10A "FS2":5x20mm 10A 250V LCD " "
1. 2. 3. 4. 5.
1. 2
"
"
43
MT-1820N-C
12 ( )
· ( )
· ·
· ·
· ... · · ,
130 7 5 886-2-22183233
E-mail: pk@mail.prokits.com.tw
/ 1365 25 021-68183050 400 1699 629 www.prokits.com.tw
44
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