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37 

3. 

操作指南

 

3.1 

常规操作

 

3.1.1 

读数保持模式

   

 

读数保持模式可以将目前的读数保持在显示器上。改变测量档位或再按一次

“Hold/

键都可以退出读数保持模式。

 

 

按一次

“Hold/

键,读数保持且

“ HOLD ” 

符号同时显示。再按一次该键仪表恢

复到正常测量状态。

 

3.1.2 

自动感应背光功能

 

 

仪表自动感应背光功能

,

光线较暗的环境下使用

,

背光自动点亮

,

方便用户读取测

量结果。仪表开机默认为自动感应背光开启状态

,

液晶屏显示

“BL”,

可手动关闭

,

作如下:

 

 

长按

Hold/

键,关闭自动感应背光,再次长按该键,开启。

 

3.1.3 

辅助照明功能

 

 

 

键,开启辅助照明

LED,

再按

 

键,关闭辅助照明

LED

 

3.1.4 

自动关机功能

 

 

开机约

15

分钟后若无任何操作,仪表将会发出滴滴声音提示将自动切断电源,

进入休眠状态。在自动关机模式下按任何按键都可以重新开机。

 

3.2 

测量指南

 

3.2.1 

交流和直流电压测量

 

 

不可测量任何高于

1000V

直流或

750V

交流有效值的电压,以防遭到电击和

/

或损坏仪表。

 

测量直流或交流电压:

 

 

将旋转开关旋至

      V

或者

      V

档位。

 

 

分别把黑色测量笔和红色测量笔连接到

COM

输入插座和

V

输入插座。

 

 

用测量笔另两端测量待测电路的电压值(与待测电路并联)。

 

 

液晶显示器读取测量电压值。在测量直流电压时,显示器会同时显示红色表笔所

连接的电压极性。

 

 

测量交流电压时,按

"Select"

键,可选择

Hz

,测量目标电压的频率。

 

注意:

   

 

在直流

600mV

及交流

6V

量程,即使没有输入或连接测量笔,仪表也会有数字

显示,在这种情况下,短路

“V

“COM”

端一下,使仪表显示回零。

 

 

使用此仪表测量的交流电压值为真有效值(均方根)

。对于正弦波和其他波形(没

Summary of Contents for Pro's Kit MT-1280D

Page 1: ...MT 1280D 3 5 6 True RMS Digital Multimeter User s Manual 1 st Edition 2022 2022 Copyright by Prokit s Industries Co Ltd...

Page 2: ...ectromagnetic interferences surroundings the reading on the meter will be unstable and even might be great differences in error Do not operate the meter when the appearance of the meter or test lead i...

Page 3: ...ter is powered by 1 x 9V 6F22 battery that must be installed into the battery case correctly When symbol appears the battery must be replaced immediately The low level of a battery will result in inco...

Page 4: ...ge environment away from high temperature humidity 1 2 Protection System In the voltage measurement the maximum input voltage shall not exceed DC 1000V or AC 750V In the frequency electric resistance...

Page 5: ...4 Inductive Light Sensor Hold Backlight Button hFE Socket LED Light Button Range Switch Input Socket...

Page 6: ...nput polarity indicator AC Input voltage AC DC Input voltage DC Continuity test mode Diode test mode Auto range test mode HOLD Data hold mode FUSE Fuse burnt alarm BL Auto inductive backlight on NCV N...

Page 7: ...ch 4 Hz position Frequency duty cycle switch 5 AC voltage position AC voltage frequency switch Hold 1 Short press data hold function on 2 Long press auto inductive backlight on or off This function wi...

Page 8: ...the screen will show the BL symbol on it Long press the Hold button to turn off this function and long press it again to turn it on 3 1 3 LED Light Press the button to turn on the LED light press it a...

Page 9: ...uring the power frequency less than 1kHz Turn the rotary switch to the position V Press the Select key to select Hz Connect the black test lead and red test lead to COM socket and V socket respectivel...

Page 10: ...short circuit between two test leads At 60M position you have to wait a few seconds before the reading to be stabilized which is normal for a high resistance measurement When the meter is in open circ...

Page 11: ...ging all the electricity Turn the switch to the position 60mF Connect the black test lead and red test lead to COM socket and V socket respectively Use test lead to measure the capacitance Read the ca...

Page 12: ...input socket position and measuring range When one of the test leads is connecting to a live circuit please do not connect another one to any circuit When the measuring current is over 5A please do no...

Page 13: ...VE Test Power Line Identification Turn the switch to NCV LIVE position and press the Select key to LIVE Connect the red test lead to V socket the buzzer will rapidly alarm means there is live wire If...

Page 14: ...Ambient temperature is between 18 C and 28 C and relative humidity is no more than 80 3 4 1 DC Voltage Measuring range Resolution Accuracy 600mV 0 1mV 0 5 readings 3 digits 6V 1mV 60V 10mV 600V 100mV...

Page 15: ...Resolution Accuracy 1 99 0 1 2 5 readings 5 digits Input voltage range 200mV 10V effective value 3 4 6 Resistance Measuring range Resolution Accuracy 600 0 1 0 8 readings 3 digits 6k 1 60k 10 600k 10...

Page 16: ...load protection 250V DC AC 3 4 10 DC Current Measuring range Resolution Accuracy 6mA 0 001mA 0 8 readings 3 digits 60mA 0 01mA 600mA 0 1mA 20A 0 01A 1 5 readings 10 digits Overload protection mA measu...

Page 17: ...1 C 1 0 readings 3 digits 4 F 1832 F 1 F 1 0 readings 3 digits Overload protection 250V DC AC 4 Maintenance This section provides the basic information on maintenance including the replacement of fuse...

Page 18: ...d fuse 500mA 250V 10A 250V quick break fuse To avoid any electric shock or damage to the meter do not attempt to clean the inside of the meter You must disconnect all the lines before opening the case...

Page 19: ...18 MT 1280D 3 5 6 1 Pro sKit MT 1280D 3 5 6 IEC 61010 IEC61010 600V CAT IV 1000V CAT III 2 1 1 1 1 1 A B 1 1 2 60VDC 30VAC 1 9V 6F22...

Page 20: ...19 1000V 600V 1 1 3 AC DC CAT III III 1000 V CAT IV IV 600 V 1 1 4 1 2 1000V 750V 250V mA F500mA 250V A F10A 250V...

Page 21: ...20 2 2 1 LED hFE LED 1...

Page 22: ...21 2 2 APO AC DC HOLD FUSE BL LIVE NCV C F C F Hz T RMS ACV ACA hFE V mV V mV 1x10 3 0 001 A mA A mA 1x10 3 0 001...

Page 23: ...k M k 1000 M 1 000 000 Hz kHz MHz Hz kHz 1x103 MHz 1 000 000 mF F nF F mF 1x10 3 0 001 F 1x10 6 0 000001 nF 1x10 9 0 000000001 2 3 Select Hz Hz Hold 1 BL LED 2 4 COM V Hz C F mA mA 20A 20A 10 2 5 K Ty...

Page 24: ...23 3 3 1 3 1 1 Hold Hold HOLD Hold 3 1 2 BL Hold 3 1 3 LED LED 3 1 4 15 Select Hold OFF 3 2 3 2 1 1000V 750V V V COM V Select Hz 600mV 6V V COM...

Page 25: ...24 3 2 2 1KHz Select Hz COM V 3 2 3 Hz Hz COM V Select 3 2 4 600 0 6 000k 60 00k 600 0k 60 00M COM V 60M OL...

Page 26: ...25 3 2 5 COM V OL 0 5V 0 8V 3 2 6 Select COM V 50 30 3 2 7 1 000nF 60mF 60mF COM...

Page 27: ...2 8 C F Select C F V C F COM K 250 C 300 C 3 2 9 hFE 36V hFE NPN PNP e b c hFE hFE 3 2 10 250V FUSE 5A 10 6 000mA 60mA 600mA 20A 60mA 600mA 20A LEAd COM 600mA mA 600mA 20A 20A OL 5A 10 3 2 11 NCV NCV...

Page 28: ...LIVE NCV LIVE Select LIVE V 3 3 3 3 1 600V CAT 1000V CAT 2 2000 m 0 40 C 10 60 C 70 RH 0 1 C 18 C 2 C 1000V 750V mA F500mA 250V A F10A 250V 3 6000 counts OL 1 x 9V 6F22 192 mm L 89 mm W 55mm H 320g 3...

Page 29: ...C 3 4 2 6V 1mV 0 8 3 60V 10mV 600V 100mV 1 0 10 750V 1V 10M 1000V DC 750V AC 40Hz 1000Hz 3 4 3 10Hz 1KHz 0 01 0 1 1Hz 1 0 3 200mV 750V AC 1000V DC 750AC 3 4 4 10Hz 0 001Hz 1 0 3 100Hz 0 01Hz 1kHz 0 1H...

Page 30: ...6 600 0 1 0 8 3 6k 1 60k 10 600k 100 60M 10k 1 2 30 250V DC AC 1 V 3 4 7 1mA 3 2V 50 30 1V 250V DC AC 3 4 8 hFE 0 2000 10 A Vce 2 8V 36V DC AC 3 4 9 1nF 0 001nF 5 0 30 10nF 0 01nF 2 5 10 100nF 0 1nF...

Page 31: ...1 5 10 mA F500mA 250V 20A F10A 250V mA 600mA 20A 20A 5A 10 1 FUSE 3 4 11 60mA 0 01mA 1 0 3 600mA 0 1mA 20A 0 01A 2 0 10 mA F500mA 250V 20A F10A 250V mA 600mA 20A 20A 5A 10 1 40Hz 1000Hz FUSE 3 4 12 2...

Page 32: ...31 4 4 1 4 2 FUSE 500mA 250V 10A 250V 9V 6F22...

Page 33: ...32 MT 1280D 3 5 6 1 Pro sKit MT 1280D 3 5 6 IEC 61010 IEC61010 600V CAT 1000V CAT II 1 1 1 1 1 A B 1 1 2 60VDC 30VAC...

Page 34: ...33 1 9V 6F22 1000V 600V 1 1 3 AC DC CAT III III 1000 V CAT IV IV 600 V 1 1 4 1 2 1000V 750V 250V mA F500mA 250V A...

Page 35: ...34 F10A 250V 2 2 1 LED hFE LED...

Page 36: ...35 2 2 APO AC DC HOLD FUSE BL LIVE NCV C F C F T RMS ACV ACA hFE V mV V mV 1x10 3 0 001 A mA A mA 1x x10 3 0 001 k M k 1000 M 1x106 Hz kHz MHz Hz kHz 1x103 MHz 1x106...

Page 37: ...36 mF F nF F mF 1x10 3 0 001 F 1x10 6 0 000001 nF 1x10 9 0 000000001 2 3 Select Hz Hz Hold 1 BL LED 2 4 COM V Hz C F mA mA 20A 20A 10 2 5 K Type...

Page 38: ...37 3 3 1 3 1 1 Hold Hold HOLD 3 1 2 BL Hold 3 1 3 LED LED 3 1 4 15 3 2 3 2 1 1000V 750V V V COM V Select Hz 600mV 6V V COM...

Page 39: ...38 3 2 2 1KHz Select Hz COM V 3 2 3 Hz Hz COM V Select 3 2 4 600 0 6 000k 60 00k 600 0k 60 00M COM V 60M OL 3 2 5 COM V...

Page 40: ...39 OL 0 5V 0 8V 3 2 6 Select COM V 50 30 3 2 7 1 000nF 60mF 60mF COM 3 2 8 C F Select C F V C F COM K 250 C 300 C 3 2 9 hFE 36V hFE NPN PNP e b c hFE hFE...

Page 41: ...40 3 2 10 250V FUSE 5A 10 6 000mA 60mA 600mA 20A 60mA 600mA 20A LEAd COM 600mA mA 600mA 20A 20A OL 5A 10 FUSE 3 2 11 NCV NCV 3 2 12 LIVE NCV LIVE Select LIVE V...

Page 42: ...H 0 1 C 18 C 28 C 1000V 750V mA F 500mA 250V A F 10A 250V 3 6000 counts OL 1 x 9V 6F22 192 mm L 89 mm W 55mm H 320g 3 4 18 28 80 3 4 1 600mV 0 1mV 0 5 3 6V 1mV 60V 10mV 600V 100mV 1000V 1V 10M 1000V D...

Page 43: ...1000V DC 750AC 3 4 4 10Hz 0 001Hz 1 0 3 100Hz 0 01Hz 1kHz 0 1Hz 10KHz 0 001 KHz 100KHz 0 01 KHz 1MHz 0 1 KHz 10MHz 0 001MHz 200mV 10V 250V DC AC 3 4 5 1 99 0 1 2 5 5 200mV 10V 250V DC AC 3 4 6 600 0 1...

Page 44: ...1mA 20A 0 01A 1 5 10 mA F500mA 250V 20A F10A 250V mA 600mA 20A 20A 5A 10 1 FUSE 3 4 11 60mA 0 01mA 1 0 3 600mA 0 1mA 20A 0 01A 2 0 10 mA F500mA 250V 20A F10A 250V mA 600mA 20A 20A 5A 10 1 40Hz 1000Hz...

Page 45: ...44 FUSE 3 4 12 20 C 1000 C 1 C 1 0 3 4 F 1832 F 1 F 1 0 3 250V DC AC 4 4 1 4 2 FUSE 500mA 250V 10A 250V...

Page 46: ...45 9V 6F22...

Page 47: ...46 MT 1280D C 12 130 7 5 886 2 22183233 E mail pk mail prokits com tw 1365 25 021 68183050 400 1699 629...

Page 48: ...PROKIT S INDUSTRIES CO LTD http www prokits com tw E mail pk mail prokits com tw 2022 Copyright by Prokit s Industries Co LTD All rights reserved 2022001 A...

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