Ceyear 87230 Series, Quick Start Manual

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2 Preparation before use
2.1 Preparation before Operation
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Table 2.3 Variation Range of Working Power Supply of the 87230 Series
Power Supply
Parameter
Applicable Scope
Output voltage +5 V ±5% DC
Rated current 0.5A
The normal power consumption of the 87230 series USB CW power sensor is 1.8 W. When the
computer USB interface is inserted with multiple USB devices and it can’t guarantee that each interface
can provide 0.5
A output current, the computer will prompt that some sensors can’t be found. In this case,
please use the USB HUB with external power supply.
Connect the sensor with the USB port of the host with the USB cable conforming to the requirements,
and observe whether the green indicator lamp of the sensor is lit up.
Step 1. Connect the small port of the USB cable with the 87230 series USB CW power sensor and
tighten it, and then connect its large port with the computer or measurement instrument USB host
interface, and the power sensor green indicator lamp will light up later;
Step 2.
The “Equipment Manager” of the host can find the new “USB Test and Measurement Devices”.
Fig. 2.2 Connecting the USB CW power sensor to the Computer
4) Power off
Remove the USB cable to turn off the USB CW power sensor. In this case, the green LED indicator lamp
will go out.
2.1.4 Correct Use of Connectors
During test of the USB CW power sensor, it shall be connected to the USB cable and then connected to
the source to be tested. The 1.85 mm, 2.4 mm and 3.5 mm male connectors shall be used, and even
different types of switching adapters shall be used. Even though connectors are designed and
manufactured according to the highest standards, their service life is limited. Wear is unavoidable in
normal use and can make the connector performance degrade or even unable to meet the measurement
requirement, therefore, correct maintenance and measurement connections not only provide accurate
and repeatable measurement results but also prolong the useful life, reduce the measurement cost.