Metrix+ 171TRMS+ Instructions

171TRMS+ Digital Multimeter Instruction
Ⅰ. Overview
This is a handheld industrial digital multimeter. It can measure
True RMS AC voltage/current, DC voltage/current, resistance,
frequency, capacitance, on-off test, diode forward voltage drop,
Live wire or neutral wire, NCV electric field, etc. The instrument
is dust-proof,resistant to falling and easy to operate.
In solar application,electronic and electrical,high voltage
equipment testing environment, you can use it to test.
Ⅱ.Safety Rules and Notes
The design of this measuring appliance conforms to the safety
standard of EN61010 CATⅢ 1000V , Please read this
handbook carefully before use.
1. Safety Electrical Symbols
Warning, be careful
Risk of high voltage
Double insulated
2. When measure, do not surpass the greatest stipulated input
value.
3. In the process of measuring, do not turn switch to change the
measuring range at random, in case to destroy the measuring
appliance.
4. The measuring appliance can display the mark while the
voltage is bigger than 30V, remind the user that the measured
voltage has surpassed the safety voltage, please operate
carefully.
5. Measuring appliances should avoid the straight sunlight, the
high temperature, and moisture.
6. After using, please must release the power switch to turn off
the power.
7. If it doesn't use for a long time,please take out the battery, in
case the battery leaks to damage the parts.
Ⅲ. General Specifications
1. Greatest Display: 6000 or 9999 Counts.
2. Has the function of back light, data hold,
the maximum/minimum value hold measure.
3. Automatic cathode display: Displays " - "
4. Batteries insufficient display: Displays "
5. Auto power OFF
After turning on the instrument and without turning the function
switch or pressing any button,the instrument will automatically
enter into sleep mode after 15 minutes, to save battery power.
when it is in the sleep mode you can press the any button to
".
wake up the instrument. If you don't need the automatic sleep
mode, you should hold down the SELECT button to turn on the
instrument, and then the symbol" " will not be display on the
LCD.
6. Working condition：0C-40C, 75%RH.(max)
7. Storage environment: -10C-50C, 85%RH. (max)
8. Battery：AA1.5V×2
9. External dimensions ：189(L) x 89(W) x 55（H）mm
10. Weight: Approximately 380g（contain battery）
Ⅳ. Technical Specifications
Accuracy: ± (a% reading + b digit). One year warranty Ambient.
Temperature: 23°C±5°C
DC Voltage
Range Accuracy
6V~600V ±(0.5%+5)
1000V ±(0.8%+5)
Input resistance：about 10MΩ.
AC Voltage
Range Accuracy
6V~600V ±(1.2%+5)
1000V ±(1.2%+5)
Input resistance: about10MΩ.
Frequency：40Hz~1kHz. VFC 600V: 40Hz~400Hz.
ACV-Hz: amplitude greater than 2V.
Measurement range: 40Hz~20KHz.
Display: TRUE RMS(sinusoidal wave form RMS calibration).
3.2.3 DCA
range Accuracy
600μA~600mA
±(1%+5)
6A~20A ±(2%+5)
Overload protection: μA/mA:F 630mA/250V with fuse.
20A: F20 A/250V with fuse.
Input Electric Current：6A~20A（less than 10 seconds).
Voltage Drop Measure：full measure range is 600mV.
3.2.4 ACA
range Accuracy
600μA~600mA
±(1.5%+5)
6A~20A ±(2%+10)
Overload protection: μA / mA: F 630mA/250V with fuse.
20A: F2 0A/250V fuse.
Input Electric Current：6A~20A（less than 10 seconds).
Voltage Drop Measure: Full measure range is 600mV
Frequency: 10Hz~1kHz(Warning: Frequency for square wave,
Accuracy is specified from 10Hz to 400Hz).
Display：TRUE RMS(sinusoidal waveform RMS calibration).
Resistance
range Accuracy
600Ω~6MΩ
±(0.8%+5)
60MΩ
±(2%+5)
Overload protection: 500Vvirtual value.
Plough voltage approximately 1V.
Capacitance
Range Accuracy
10nF ±（3%+20）
100nF~1mF ±（3%+5）
10mF~100mF ±（10%+5）
Overload protection ：500Vvirtual value.
Frequency /Duty
Range Accuracy
10Hz~10MHz ±(0.5%+3)
1%~99% ±(0.5%+3)
Overload protection ：500Vvirtual value, input delicacy:1V.
Note:If the measured frequency is above 30V, please press
"SELECT" key at AC electric voltage measuring range to
get to the frequency function, then carry on measure.
Temperature
Range Accuracy
 (1.2%+4)
-50~400℃
（1.9%+15）
401~1000℃
o
-58～750 F ±（1.2%+6）
751～1832 o F ±（1.9%+25）
Overload protection:500V virtual value
Diode
Display of similar diode positive voltage.
Measuring condition：positive DC electric current 1mA,
reverse DC voltage approximate 3.3V.
Relative : ≤75%
Resolution
1mV~0.1V
1V
Resolution
1mV~0.1V
1V
Resolution
0.1μA~0.1mA
0.001A~0.01A
Resolution
0.1μA~0.1mA
0.001A~0.01A
(20A is 100mV).
Resolution
0.1Ω~0.001MΩ
0.01MΩ
Resolution
0.001nF
0.01nF~1uF
0.001mF~0.01mF
Resolution
0.001Hz~0.01MHz
0.1%
Resolution
1℃
1℃
o
1 F
1 o F