Main features

• The instrument adopts a 4.2-inch color touch screen display, with a simplified Chinese interface for intuitive and easy operation at a glance.
• Single machine use can measure energy error, voltage, current, active power, reactive power, phase, frequency, power factor, and display vector diagrams and line checking results.
• Measure the waveform of three-phase voltage and current, as well as the 2-51st harmonic wave and harmonic content.
• The instrument has the functions of measuring total active energy in both forward and reverse directions, as well as reactive energy in four quadrants. It has the function of phase separated energy metering.
• The instrument has a no-load line checking function, which can correctly check the line when the user has no load or low current.
• Support wiring simulation function、The instrument can simulate various on-site wiring and obtain corresponding wiring results in the office without connecting voltage or current signals. This function can be used as a training tool for line checking, improving the line checking skills of on-site staff.
• Ultra wide current measurement range. Minimum starting current of 1mA. High supply, high timing, and no load can also recognize wiring.
• Ratio testing, direct measurement of the ratio of low-voltage current transformers. It can easily identify faults such as open circuits, poor contacts, inter turn short circuits inside the CT secondary circuit, and whether the CT nameplate ratio matches the actual CT ratio.
• Station identification: The terminal and host can be flexibly configured without binding relationship, and do not need to be reset during configuration. The host number can be flexibly changed through the keyboard, thereby achieving user identification of the peptide matching power supply area under complex conditions.
• Branch recognition: It can accurately determine the power branch (switch) to which the user belongs.
• It has the ability to recognize up to 24 branches simultaneously, and the current access method is 500A hard clamp or flexible clamp. Simultaneously display the two branches with the maximum signal to determine the situation of the serial branch.
• Serial identification function: Both the extension and the host can be the initiators of serial identification. When used on site, there is no need for telephone communication, and the instrument displays it directly. After the host confirms, send a prompt to the extension to the next testing point.
• Both the terminal and the host can display information such as signal strength, phase, and whether the neutral wire is reversed during the current test. To adapt to the complex situation on site, signal strength is used as the basis for judgment.
• The instrument has universality, and two or more instruments can be used in combination.
• The working principle and implementation method of the instrument are non carrier based, and there should be no crosstalk phenomenon during the operation of the instrument. During use, it is not allowed to affect the downstream communication of the electricity information collection system, and the testing process should not be interfered with by the communication of the collection system. During the testing process, the concentrator and other collection devices should not be powered off.
• The appearance and volume of the instrument should be suitable for on-site testing applications. It should be small in size, light in weight, compact in structure, and easy to carry. When in use, one click testing should be used, with the characteristics of simple and convenient use.
• The number of instruments can be configured flexibly and can be set freely through the interface, thus achieving user identification of multiple distribution transformers (switches) power supply areas under complex conditions.
• The branch of the station area has functions such as connecting households, and both the extension and the host have automatic storage functions, with a storage capacity of 100 pieces of data for each type. Data can be exported through a USB flash drive and generated into an Excel spreadsheet.
• Automatic recording function, after inserting the USB flash drive, can automatically record and store all electrical parameters and positive and negative active and reactive energy for a long time. It can record power and related parameters for up to 100000 time periods, with a minimum storage time interval of 10 seconds. The data can be copied to the computer through the USB flash drive and imported into EXCEL software to form a long-term storage table for easy inspection of the on-site operation status. After starting storage, even if it is restarted after power failure or interference, it will automatically enter the storage interface to perform storage work, mainly used for main and branch power inspection.
• Multi zone one-time identification function: Place one instrument at each adjacent transformer (supporting up to 8 transformers and 24 branches) and label it with the corresponding serial number. The other instrument is tested at the energy meter to directly determine the transformer and phase to which the tested energy meter belongs.
• Phase detection function: The instrument should be able to have phase measurement function when in use, that is, the test results of the user's handheld instrument should be able to display the phase (A phase, B phase or C phase) of the measured meter. For instruments under transformers, the phase of the user's handheld instrument should be displayed. When the extension on the user side sends, regardless of whether the neutral and live wires are reversed, the result must be correctly judged and displayed.
• Measurement function for branch lines in the same station area: The instrument can accurately measure the branch ownership relationship of branch boxes and electric meters. The use of zero line pulse current detection increases the number of branches that can be detected simultaneously, and reduces the number of operational steps compared to same phase line current detection. A single unit can simultaneously detect 3 branches, and a combination of multiple units can simultaneously detect 24 branches.
• Protection function: The instrument should have self-protection function during use. For example, if the instrument accidentally connects to the line voltage during wiring, the instrument should ensure that the product is not damaged and provide a prompt for the misconnection situation, and the instrument cannot perform testing operations.
• Phase sequence judgment function: The instrument can judge the true phase sequence of the three-phase power supply wiring of the on-site meter or concentrator, and display "positive sequence" or "reverse sequence" in the measurement interface.

1. Standard configuration details

1）1 host
2）1 slave machine
3）host3 clamp current transformers
4）followmachine3 clamp current transformers
5）2 sets of voltage testing wires
6）Two sets of photoelectric samplers
7) Two pulse input and output lines
8) 2 power adapters
9) Two copies of user manual
10) 1 copy of factory inspection report
11) 1 copy of factory certificate/warranty card
12) 2 portable bags

2. Details of selected accessories

1) 100A clamp current transformer
2) 500A clamp current transformer
3) Flexible coil