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solvent.   
The dirty or damp input socket may affect reading.   

Steps for cleaning input sockets: 

 Disenable the meter and pull all test leads out of the input socket. 

 Clean up all dirty substances on sockets.

 

 Use a new cotton ball with a detergent or lubricant to clean each socket, 

because lubricant can prevent the socket vulnerable to dampness from 
pollution. 

5.2 Battery & Fuse Replacement

 

 

To avoid any electric shock or personal injury as a result of 
incorrect reading, replace batteries once the symbol “

 

” 

appear on the display unit.   
To avoid any electric shock or personal injury, don't attempt to 
open the battery cover to replace batteries, unless you have 
already powered off the device and carried out an examination 
to ensure that the test lead has been disconnected from the 
circuit to be measured.   

Battery Replacement: 

1. Turn off the power of the meter.   
2. Disconnect all test leads from the input socket. 
3. Use a screwdriver to remove the screw of battery cover. 
4. Take off the battery cover. 
5. Take out the old batteries carefully and replace with 3 pcs 1.5 V AAA 

new batteries. 

6. Fix the battery cover.   

Fuse Replacement 

When fuse is blown, replace with the same type of fuse.   
1. Turn off the power of the meter and take out the holster. 

2. 

Use a screwdriver to remove the screw of back cover.

 

3. Take off the back cover. 
4. Remove the blown fuse and replace with the same type of fuse 
5. Screw the back cover 
6. Put the holster back. 

 

 

Содержание MT-1220

Страница 1: ...MT 1220 MT 1225 3 1 2 Digital Multimeter User s Manual 1 st Edition 2020 2020 Copyright by Prokit s Industries Co Ltd...

Страница 2: ...this meter ensure that the test lead is flawless 1 1 2 Safety Considerations When the meter is used in the vicinity of the equipment that produces strong electromagnetic interferences the reading on t...

Страница 3: ...the circuit to be measured the operator must first power off the aforesaid circuit Before repairing TV sets or measuring power switching circuit the operator must be careful enough to prevent high amp...

Страница 4: ...itance may promise the dangerous voltages even if the power supply to the meter is cut off The operator should stop using and maintain the meter immediately if any abnormality has been observed on the...

Страница 5: ...2 Symbols Description Symbol Description Low battery To avoid electric shock or personal injury as a result of incorrect reading promptly replace the battery when the low battery symbol appears Auto p...

Страница 6: ...scription COM All public input terminals to be measured are connected to test leads in black or the public output plugs of exclusive multi function test sockets V mA Positive input terminals connected...

Страница 7: ...asured In parallel connection with the circuit to be measured Read the measured voltage value on LCD screen When DC voltage measurement is attempted the display unit will show the voltage polarity of...

Страница 8: ...t the test leads in black and in red to COM input socket and V input socket respectively Connect the test leads in black and in red to the positive and negative poles of the diode to be tested respect...

Страница 9: ...d current is less than 200mA connect the test lead in red to a 10A input socket when the measured current is 200mA 10A Disconnection of the circuit to be measured Connect the test lead in black to the...

Страница 10: ...temperature is less than 10 and relative humidity is below 80 Storage temperature humidity 10 60O C Batteries shall be removed when RH is below 70 Coefficient of temperature 0 1 accuracy O C 18 O C or...

Страница 11: ...4 2 2 AC Voltage Measuring range Resolution Accuracy 200V 100mV 1 readings 10 digits 600V 1V 1 2 readings 10 digits Input impedance 1M Maximal input voltage 600V DC or AC valid value Frequency respon...

Страница 12: ...letion of previous measurement 4 2 7 Temperature only MT 1225 Measuring range Resolution Accuracy 20 1000 1 1 0 Reading 3 digits Overload protection 250V DC AC 5 Meter Maintenance This section provide...

Страница 13: ...ver to replace batteries unless you have already powered off the device and carried out an examination to ensure that the test lead has been disconnected from the circuit to be measured Battery Replac...

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Страница 23: ...MT 1220 MT 1225 3 1 2 1 MT 12 2000 AD 1 1 A B 60Vdc 30Vac 3 1 5V AAA 600V...

Страница 24: ...AC DC CAT 600 V European Union 1 2 600V 250V mA F200mA 250V A F10A 250V 2 2 1 LED...

Страница 25: ...HFE 2 2 NCV hFE V mV V mV 1x10 3 0 001 A mA A mA 1x x10 3 0 001 k M k 1000 M 1 000 000 2 3 HOLD 15 3 30 2 4 COM V mA mA 10A 10A...

Страница 26: ...2 5 K 3 3 1 HOLD H H 15 3 2 200 0mV 2 000V 20 00V 200 0V 600V 200 0V 600V 600V 600V V V COM V 200 0 2 000k 200 0k 2 000M 20 00M COM V 20M OL...

Страница 27: ...COM V OL 0 5V 0 8V 50 hFE 36V hFE NPN PNP e b c HFE hFE 2mA 20 00mA 200 0mA 10 00A 250V COM 200mA mA 200mA 10A 10A OL COM V NCV NCV 30V...

Страница 28: ...RH 0 1 18 28 600V mA F200mA 250V A F 10A 250V 3 2000 counts OL 3 x 1 5V AAA 148mm L 79mm W 48mm H 210g 4 2 18 28 80 200mV 0 1mV 0 5 5 2V 1mV 20V 10mV 200V 100mV 600V 1V 0 8 5 1M 600V DC AC 200V 100mV...

Страница 29: ...1 3 2k 1 200k 100 2M 1k 20M 10k 1 5 3 250V DC AC 2 4 V 0 8mA 2 4V 30 250V DC AC hFE hFE 0 1000 10 A Vce 2 8V 2mA MT 1220 0 01 A 1 5 20mA 0 01mA 200mA 0 1mA 10 00A 10mA 3 10 mA F200mA 250V 10A F10A 250...

Страница 30: ...MT 1225 20 1000 1 1 0 Reading 3 digits 250V DC AC 5 5 1 5 2 F200mA 250V F10A 250V 3 x 1 5V AAA...

Страница 31: ...12 0755 83692415 83692986 83246594 83247554 400 169 9629 0755 83692143 130 7 5 886 2 22183233 E mail pk mail prokits com tw 1365 25 403 5 0755 83692415 0755 83692143 400 1699 629 E mail shenzhen mail...

Страница 32: ...2020 Prokit s Industries Co Ltd All rights reserved 2020001...

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