HS3000B three-phase multi-function phase volt-ampere meter

HS3000B three-phase multi-function phase volt-ampere meter

Technical Parameters

1. Introduction

This instrument is the latest product of our company's HS series products. The instrument is a fully digital, multi-functional, high-precision, intelligent multi-parameter power frequency measuring instrument. The instrument uses the latest microprocessor technology and digital signal processing technology to realize the power frequency electrical parameter measurement (such as voltage, current effective value, active and reactive power, apparent power, power frequency, power factor, phase relationship, etc.) by direct AC sampling method. It can directly display the vector diagram, which is especially suitable for various power supply and use units to check the wiring status of the power billing system and relay protection system. This instrument has the following characteristics:

1. It uses a 3.4-inch large screen with high backlight display, and Chinese characters display the working status and test parameters of the instrument, which is extremely convenient to operate.

2. Real-time measurement of three-phase voltage, current, phase relationship and vector diagram; frequency, active and reactive power, power factor and apparent power phase and total power.

3. The small current 1.5mA measures the phase, which is very suitable for checking the connection status of new users when there is no load after commissioning. The instrument has high measurement accuracy and a wide measurement range.

4. Automatically identify the inductive or capacitive load characteristics of the line, and identify 1008 types of incorrect wiring of three-phase three-wire and three-phase four-wire energy meters, and point out the incorrect wiring location.

5. Built-in clock chip, can accurately record and display the measurement time.

6. Dual power supply, can work with rechargeable batteries or borrow power from on-site PT, the battery working time is up to 18 hours.

7. Equipped with 500A current clamp, can measure the angle difference and ratio difference of low-voltage current transformer.

8. Can be measured through the secondary side, can also be converted into primary side data.

9. Built-in memory, can save 200 groups of measurement data, can check the saved data groups and vector diagrams.

10. Equipped with management software, can upload the instrument measurement data in groups to the PC, and then form a printed report for archiving.

11. Realize the functions of browsing, querying, uploading data, etc. of test results.

12. The built-in help menu can prompt the wiring method and precautions in Chinese, and prompt the current wiring status and phase sequence status of each phase in Chinese.

13. The Chinese menu is combined with direct buttons, making the operation easy to learn and use.

14. Humanized design, anti-drop wrist strap to prevent operators from accidentally damaging the instrument.

15. Ultra-small structure design, handheld, small size and light weight.

Technical indicators

1. Basic error

Note: When the current range is within the range of 1.5 mA -10 mA, the relative error is ±3°.

2. Measurement channel characteristics

Voltage channel Voltage limit: 45V-450V when PT borrows power

Voltage measurement limit is 5V-500V when battery powered

Input impedance: >500kΩ

Resolution: 0.001V

Current channel Current limit: 1.5mA ~ 10A (optional 500A)

Resolution: 0.0001A

Input mode: Clamp-on current transformer conversion input

Phase measurement: 0.0-360.0 degrees

Overall machine accuracy: 0.5 level

Frequency influence: Signal in the range of 45Hz~65Hz <±0.04%

Temperature influence: in the range of -10℃～+40℃ <±50ppm

Overall machine accuracy: 0.5 level

3. Working power supply (dual power supply)

AC power supply: instrument measurement end power supply (45-450V)

DC power supply: built-in high-performance lithium battery (1900mAh 3.7V/2 pieces)

4. Safety features

4.1 Withstand voltage

The voltage input terminal, between the AC charging power input terminal and the instrument housing, between the clamp current transformer core and the secondary winding lead wire and the clamp handle can withstand a 2KV/50HZ sinusoidal AC voltage test for 1min.

4.2 Insulation resistance

The insulation resistance between the voltage input terminal, between the AC charging power input terminal and the instrument housing, between the clamp current transformer core and the secondary winding lead wire and the clamp handle is greater than 10MΩ.