Features:
The meter head is a common design, i. e. the ground wire at the measuring end is interlinked with the ground wire at the power supply end (except the isolation meter).
This meter has strong anti interference ability and fast display refresh rate.
The meter head uses a wide power supply range: DC3.5 30V (except the isolation meter), the power supply reverse connection will not burn.
Specification:
Voltage Measuring Range
0 99.9V
Resolution
0.01V(<10v) 0.1v(10 100V)
Ampere Measuring Range
0 9.99 20A
Resoluction
0.01A(<10A) 0.1A(>10A)
Measurement rate
more than 500mS times
Measurement accuracy
1percent (+ 1 word)
Minimum supply voltage
+3.5V
Maximum supply voltage
+ 30V
Operating temperature
10 + 65
Working humidity
10 80percent (without condensation)
Working pressure
80 106 kPa
Sunlight exposure
no direct exposure
Note:
The watch head of 20A _ built in shunt
In the following cases, it is strongly recommended that: isolation meter (isolation power supply meter)
When two or more meters are installed in a device, they cannot be alone, independent, or isolated when power is supplied
Connection method:
This meter is equipped with five lines, please find professionals strictly according to the following wiring diagram, if any questions, please feel free to contact customer service:
Meter head power supply: two wire socket
Fine _ black line: meter head power supply
Isolation meter (isolated power supply):
The meter head power supply end and the test end are completely insulated and isolated from each other, can share one power source in multiple meters, no need is worried about all kinds of interference problems caused by sharing the power supply, suitable for the factory aging test stand, test stand, or other equipment requiring more than one meter head
Test end:
COM: Test Common End
A +: Test positive current input end;Because the meter head adopts the common ground design, that is, the ground wire at the measuring end is connected with the ground wire at the power supply end, so it can only be connected between the negative and the negative power supply of the equipment under test, as shown in the following figure, the connection error will burn, (if only do voltmeter use, it is recommended to connect the yellow line with the black line, Prevent the digital flicker of ammeter caused by external interference)
Non shunt _ connection method: suitable for below 20A without external connection.
