Portable solar cell testing instrument

Portable solar cell testing instrumentIntegrating high-precision voltage and current sampling modules with intelligent analysis algorithms, it can quickly evaluate core parameters such as open circuit voltage, short circuit current, fill factor, and conversion efficiency of solar panels. The device adopts a lightweight design, equipped with a high brightness touch screen and wireless transmission function, supporting real-time data storage and multi group comparative analysis. The built-in ambient light compensation technology can automatically correct the impact of light intensity on test results, adapt to complex outdoor environments, and provide convenient and accurate detection support for photovoltaic system installation, debugging, performance maintenance, and scientific research and teaching.

1、 Product Introduction

Portable solar cell testing instrumentFor the IV curve tester of photovoltaic modules, the voltage test can reach 1500V, the current test can reach 30A, and it can test 30kW photovoltaic modules. It can test the open circuit voltage, short-circuit current, high power and other parameters of solar cell modules/arrays, providing users with accurate and efficient volt ampere characteristic testing tools. It can quickly detect the working characteristics of photovoltaic strings under natural light. The equipment is easy to operate, portable, and equipped with high-precision irradiance meters and temperature sensors, which can provide accurate on-site irradiance values and other parameters.

The portable IV tester adopts one-piece packaging technology, with clear operation interface function instructions, one key detection data export, and a single component/string detection speed of 10 seconds. The fast, accurate, and comprehensive detection function can be used as an optional configuration for third-party detection institutions and power station operation and maintenance. The whole machine is equipped with high-precision capacitive/resistive loads, as well as a faster radiometer operation module and corresponding IV curve analysis software. It can analyze IV curves more clearly and has the advantage of continuous IV uninterrupted scanning, which helps to detect the entire photovoltaic power plant system.

2、 Main functions and features

(1) Touch screen and keyboard operation, including peripheral interfaces, supporting storage space expansion through U port.

(2) Outdoor low light volt ampere characteristic test, and provide standard STC test condition correction.

(3) Built in rich database of solar cell module correction models, covering the products of most module manufacturers, providing reference for the conversion and comparison of test results, and providing users with comprehensive parameter setting functions, making it convenient for users to manually add test correction models.

(4) Internally equipped with a high-voltage isolated power supply design, providing users with reliable safety assurance.

(5) Automatic range switching function, with overvoltage, overcurrent and temperature protection.

(6) Built in large capacity replaceable lithium-ion battery provides sufficient power for testing.

(7) Equipped with environmental monitoring functions such as solar panel temperature detection and solar irradiance detection.

(8) Measurable parameters: I-V profile, P-V curve, short-circuit current, open circuit voltage, high power, high field voltage, current, solar cell temperature, irradiance, etc.

3、 Technical parameters

1.一般特性

2. Main functions

(1) Measurable parameters: short-circuit current, open circuit voltage, high power, peak power point voltage, current, IV curve.

(2) Solar cell module power generation testing and irradiance flux testing functions.

(3) Real time data conversion to STC (Standard Test Conditions) data function.

(4) Test and display the surface irradiance and back temperature of solar cell modules.

(5) Test waveform storage: Test waveform data and test conditions can be stored in the local memory or external USB drive.

(6) File copying function: It can directly copy the data files stored in the local machine to the USB drive.

(7) Intelligent battery level indicator function.

(8) Real time testing function, convenient for observing the open circuit voltage display value.

(9) Quick short-circuit current testing function.

(10) Calibration database editing function, convenient for users to set testing and calibration parameters by themselves.

3. Main technical indicators

(1) DC voltage measurement range: 15V~1500V;

(2) Accuracy of DC voltage measurement: ± 0.5% ± 0.1V;

(3) DC current testing range: 0.5A~30A;

(4) Accuracy of DC current testing: ± 0.5% ± 0.01A.

(5) Accuracy of irradiance testing: ± 3.0% reading.

(6) Temperature testing accuracy: ± 1 ℃.

4、 Product Features and Advantages

1. Product Features

(1) Single component testing: The IV2 portable IV curve tester has a unique component power generation testing function, which is used for local lighting resource detection. The tester provides a high-resolution testing mode of up to 400 points and Ethernet monitoring function that complies with the Modbus/TCP protocol, meeting the needs of scientific research.

(2) String testing of photovoltaic power plants can quickly test the power generation efficiency, short circuit, power generation, etc. of the entire photovoltaic string, and quickly screen the electrical performance between different strings.

(3) Radiation measurement: Detecting sunlight at the top of the radiometer, measuring radiation temperature and angle.

(4) STC nominal parameter conversion test: IV test, matching current specifications of more than 95% photovoltaic panels, switching between different component parameters more quickly, and automatically calculating the current power generation efficiency and conversion rate of the panels.

(5) Environmental monitoring function: It has environmental detection functions such as solar panel temperature detection and solar irradiance detection, and can provide users with optional radiometer matching.

2. Product advantages

(1) High precision curve testing from 10 to 1500V

Using our company's new resistive testing module, single component testing is more accurate, capable of testing up to 1500V series IV curve testing and 20A series parallel testing.

(2) Long lasting battery life

IV2 provides a built-in high-capacity lithium battery module, which can be easily replaced and has a continuous battery life of up to 8H, providing sufficient charging power for testing.

(3) Range switching

For components/strings of different specifications, IV2 can automatically switch the testing range to provide a more accurate testing range and provide overvoltage and overcurrent protection.

(4) Photovoltaic module correction database

Built in rich database of solar cell module correction models, covering the products of most module manufacturers, providing reference for the conversion ratio of test results and offering users comprehensive parameter setting functions that can be manually added.

(5) High voltage isolation design is safer

The device is equipped with a high-voltage adjacent power supply design, providing reliable safety assurance for users. The maximum open circuit voltage testing range can reach 1500V, and it provides up to 30KW photovoltaic array testing function.

(6) Touchscreen panel operation

The host operation panel adopts a touch screen and keyboard operation mode, and the bright LCD screen can display more clearly in sunlight. The whole machine includes rich peripheral interfaces to provide various extended online functions.

(7) National Industry Standards

The equipment complies with international and industry standards and can serve as a third-party measurement basis.

◎ IEC61215-2005 Crystalline Silicon Photovoltaic Modules for Ground Use - Design Qualification and Type Approval

◎ IEC61646-2008 Design and Qualification Specification for Surface Thin Film Batteries

CGC/GF003.1:2009 Technical Specification for Acceptance of Parallel Photovoltaic Power Generation System Engineering Part 1: Electrical Equipment

GB4793.1-2007/IEC60010-1 Safety Requirements for Testing, Control, and Laboratory Electrical Equipment

Requirements for IEC60904-22007 standard solar cells

◎ IEC60891-2009 Temperature and irradiance correction method for the IV measured characteristics of photovoltaic devices

5、 Detailed Equipment Parameters

1. System parameters

2. Host parameters

3. Radiation technical parameters

Overall equipment diagram
irradiation	measurement range	0 to 1400W/m2
	resolution	1W/m2
	measurement accuracy	± (5%+5 digits)
	resolution	0.1 ℃ (0.2 ℉/1 ℉ at>100 ℉)
	Testing accuracy	± 1 ℃ (± 2 ℉) (under conditions of -10 ℃ to 75 ℃ (14 ° F to 167 ℉)), ± 2 ℃ (± 4 ℉) (under conditions of -30 ℃ to -10 ℃ (-22 ℉ to 14 ℉) and 75 ℃ to 100 ℃ (167 ℉ to 212 ℉))
inclination	measurement range	-90°~90°
	resolution	0.1°
	measurement accuracy	± 1.5 ° (under -50 ° to+50 ° conditions) ± 2.5 ° (under -85 ° to -50 ° and+50 ° to+85 ° conditions) ± 3.5 ° (under -90 ° to -85 ° and+85 ° to+90 ° conditions)
Note: a) The measured values are applicable for equipment tilt ranges from -20 ° and+20 "to horizontal. When it exceeds this range, the LCD displays "---" and the result is called magnetic north.
temperature	Working temperature of IRR1-SOL	-20 ℃ to 50 ℃ (-4 ℉ to 122 ℉) (humidity<80%), no condensation
	Working temperature of 80PR-IRR	-30 ℃ to 60 ℃ (-22 ℉ to 140 ℉) (humidity<80%)
	Storage temperature	-30 ℃ to 60 ℃ (-22 ℉ to 140 ℉) (humidity<80%)
	altitude	0m to a maximum of 2000m

6、 Accessories List