天祥太阳能科技（广州）有限公司

Accurately measures single modules or PV arrays up to 90-100 kW.
能精确测量单个组件或PV阵列，可测功率范围达90KW。
* Low maintenance requirements - many Daystar units still operating after 18+ years in the field.
性能稳定，故障率低---很多Daystar产品户外正常工作时间超过18年。笔者注：美国Daystar公司专注户外IV测试设备的研究开发超过23年，该公司20多年来只专注做户外IV测试设备。
* Multi-range load capacitance for optimizing sweep speed to PV characteristics. Changing the voltage across a cell too quickly may give an inaccurate presentation of the IV curve.
由于有多个电容负载范围可选，故能优化扫描速度，进而更好的表征PV的电性能特性。如果改变被测电池两端的测试电压太快，会造成IV曲线的表征结果不精确。
* Safe, the Computer connection, pyranometers, and temperature inputs are electrically isolated from PV input. Non-metallic case.
安全，计算机接口、日射强度计，以及温度接入端口，与PV输入端口实现电气隔离，保证了设备使用的安全性。
* Can measure positive grounded, negative grounded, or floating PV sources.
能安全地对测试正极接地、负极接地或者漂浮PV系统进行测量。
* Two Current Ranges, 10 Amperes and 100 Amperes. Accuracy ~0.5%
两个可选的电流测试量程，10A和100A，精度~0.5%
* Auto-scale voltage ranges from 6 V to 600 V. Accuracy ~0.5%.
自动切换到合适的电压测试量程（6V到600V可选），测量精度~0.5%.
* Portable and rugged.
便携、耐用
* Large capacity battery for more than 10 hours of continuous operation.
大容量电池可供设备持续工作10小时以上。
* 4-Wire Kelvin load PV connection to measure voltage.
四线制开尔文方式测试电压。
* True short-circuit current measurement.
真实的短路电流测试方法,保证短路电流测试结果的真实性。
* Universal AC power 85/264 Vac, 50/60Hz for re-charging battery and/ or running continuously from AC power. Secondary DC or PV module power/battery-charge input.
DS-100C设备的蓄电池可通过我们日常使用的交流电源进行充电，也可以直接通过交流电源给DS-100C设备供电。备有直流（DC）和光伏组件电源，以及蓄电池给充电输入端口，即可通过直流电源、光伏组件（阵列）电源或蓄电池电源进行充电。
* USB and RS-232 interfaces.
USB和RS-232接口
* 2 voltage inputs for pyranometers; auto-scaling 4 decades to ±5 Volts.* 2 Thermocouple temperature inputs. Type T is standard.
日射强度计配有两个电压输入端口，两个热电偶输入端口（标准配置）。
* The Normalization Constants window allows you to choose one method of normalization, Approximation, ASTM-E1036-93, or ASTM-E1036-96.
归一化窗口提供了三种归一化方法。即将非标准状态下的IV曲线（数据）转换为标准条件（STC）下的IV曲线（数据），转换参照的方法有三种标准供选择，如Approximation, ASTM-E1036-93, or ASTM-E1036-96.保证了转换结果的正确性。
* Supplied with transport case.
配有设备手提箱，方便携带。

软件主要功能介绍
Daystar DS-100C IVPC Software Capabilities
* IVPC 3 Software (Windows) is supplied with all Daystar IV curve tracers to operate the Tracer, process and store the data, display the IV curve(s) on the computer and provide extensive analysis and presentation capabilities
所有Daystar IV测试仪都配有IVPC3软件，并可通过软件实现IV测试的运行，数据采集、IV曲线在电脑上显示，并提供强大的数据分析能力和解释功能。
* Extensive Help Menu
大量的帮助菜单，可帮助技术人员迅速掌握设备的操作。
* Auto-Curves to automatically take IV curves at defined intervals or ranges of irradiance and temperature.
可根据客户对测试的设置完成IV曲线的自动测试。如：客户可以要求设备自动根据所设置的、在满足的辐照强度的范围和温度范围的条件下，自动进行IV曲线的测量。
* Quick-Curve feature to take IV curves quickly with a minimum of user input.
快速曲线功能可以实现对IV曲线的快速测量。
* External Command Set allows users to write programs to control operation of the Daystar IV Curve Tracer.
使用者可以通过写进程序控制Daystar IV测试仪的测试过程。比如可以设定自动测试的间隔时间、在哪些温度范围内开始测试、在哪些辐照度下进行测试。
* IV Curve normalization (3 types). Can display original and normalized curve on same grid.
IV曲线的修正功能能同时显示初始和修正后（修正到标准测试条件STC下）的曲线，两条曲线可以同时出现在同一个坐标图里。
* Multi-plot capability to study multiple curves on one graph.
Multi-plot可以实现将多条曲线画在在同一个图里对比分析。
* Pyranometer-Manager allows quick and easy switching between connected pyranometers.
Pyranometer-Manager可以实现对连接着的各个日射强度计进行快速的开关。
* import and Export functions in IVA and XML formats.
可实现以IVA和XML格式数据的输入输出。
* High contrast display mode for ease of use outdoors.
高分辨率显示模式极大地方便了户外使用。
* Convenient method to recall default settings for different PV systems.Useful when taking repeated IV curves of different systems.
能方便地为不同的系统，重新修订错误（或不大合适的）设置。该功能这在对不同的系统进行重复的IV测试时，是非常有用。

软件更多特点如下：
A software program, IVPC, is provided with each Daystar DS-100 I-V Curve Tracer. This menu-driven software controls the I-V curve tracer, transfers I-V curve data to the computer for storage, and includes a toolset to manipulate, normalize, display and analyze I-V curves. Some key figures are described below.

Data Grid—IVPC shows all I-V curves in a data grid with user-selected headers such as date, name, power, irradince, etc. Any of fourteen values in the curve file may be used as column headers.
Displaying Curves—IVPC displays single I-V curves or multiple curves using the Multi-curve feature.
Copying data/curves—IVPC provides several methods for copying and pasting curve data to popular word processing and spreadsheet programs.
Normalization—IVPC includes three methods for normalizing an I-V curve to standard conditions; ASTM-E1036 1993 and 1996, and a quick approximation method based on scaling current for irradiance and adjusting voltage for temperature differences.
Attached sensors—IVPC automatically reads, translates, and stores irradiance values from connected pyranometers and temperatures from connected thermocouples. These data are used for normalization.
IVPC is updated periodically and the latest version is available here