以下是QRO-401汽車尾氣分析儀的產(chǎn)品中英文介紹：

QRO-401汽車尾氣分析儀是一款專為汽車尾氣檢測而設(shè)計的高精度儀器，適用于汽車制造、汽車維修、發(fā)動機分析研究、機動車年度檢審以及環(huán)境保護監(jiān)測等多個領(lǐng)域。它能夠測量多種尾氣成分，包括一氧化碳（CO）、碳氫化合物（HC）、二氧化碳（CO₂）、氧氣（O₂）、空氣剩余率（λ）、空燃比（AFR），還可選配測量氮氧化物（NOₓ）。

該儀器采用先進的測量技術(shù)，CO、HC、CO₂采用非分散紅外吸收法（NDIR），O₂、NOₓ采用電化學(xué)傳感器。其測試量程廣泛，CO為0.00-9.99%，HC為0-9999ppm，CO₂為0.0-20.0%，O₂為0.00-25.00%，λ為0-2.000，AFR為0.0-99.0。測量精度高，可重復(fù)性小于2%FS，響應(yīng)時間在10秒以內(nèi)，能夠快速準(zhǔn)確地提供檢測結(jié)果。

QRO-401具有自動調(diào)整預(yù)熱時間功能，預(yù)熱時間約2-8分鐘。系統(tǒng)在未使用時會進入stand-by節(jié)電模式，有效節(jié)省能源。此外，它還配備了六段LED指示燈，操作簡單直觀。內(nèi)置超小型打印機，可隨時打印檢測數(shù)據(jù)、日期和時間，方便記錄和存檔。通過RS232接口，該儀器還可以連接電腦，配合專用軟件進行數(shù)據(jù)傳輸和進一步分析。

在設(shè)計上，QRO-401注重便攜性，尺寸為285mm×410mm×155mm，重量僅約4.5kg，便于攜帶和現(xiàn)場使用。它還具備多種實用功能，如空氣漏氣檢查、保持功能（Hold），可臨時暫停測量，方便用戶進行不同場景下的檢測。用戶可以根據(jù)汽車燃料類型進行選擇，包括汽油、液化石油氣（LPG）、壓縮天然氣（CNG）和酒精。此外，QRO-401還配有探頭、探頭軟管、備用保險管、泄漏測試帽、備用過濾器、使用手冊、電源線、接地線、校準(zhǔn)控制器頭、校準(zhǔn)連接軟管等基本附件，并可選配打印機、打印紙、PC軟件和連電腦電纜。

The QRO-401 automotive exhaust gas analyzer is a high-precision instrument specifically designed for automotive exhaust gas detection. It is suitable for a variety of fields, including automotive manufacturing, automotive repair, engine analysis and research, annual inspection and review of motor vehicles, and environmental protection monitoring. The analyzer is capable of measuring various exhaust gas components, such as carbon monoxide (CO), hydrocarbons (HC), carbon dioxide (CO₂), oxygen (O₂), air residual rate (λ), air-fuel ratio (AFR), and it can also be optionally equipped to measure nitrogen oxides (NOₓ).

Utilizing advanced measurement techniques, it employs non-dispersive infrared absorption (NDIR) for CO, HC, and CO₂, and electrochemical sensors for O₂ and NOₓ. The analyzer has a wide range of measurement scales: CO from 0.00 to 9.99%, HC from 0 to 9999ppm, CO₂ from 0.0 to 20.0%, O₂ from 0.00 to 25.00%, λ from 0 to 2.000, and AFR from 0.0 to 99.0. With high measurement accuracy and repeatability of less than 2% FS, it can provide quick and accurate results within a response time of 10 seconds.

The QRO-401 features an automatic preheat time adjustment function, with a preheat time of approximately 2 to 8 minutes. When not in use, the system enters a stand-by power-saving mode to effectively conserve energy. Additionally, it is equipped with a six-segment LED indicator for intuitive operation. The built-in mini printer allows for on-site printing of detection data, date, and time, facilitating convenient recording and archiving. The analyzer can also be connected to a computer via an RS232 interface, and with dedicated software, data transfer and further analysis can be performed.

In terms of design, the QRO-401 prioritizes portability, with dimensions of 285mm×410mm×155mm and a weight of only about 4.5kg, making it easy to carry and use on-site. It also features various practical functions, such as air leak detection and a hold function that allows temporary suspension of measurement, making it convenient for users to conduct detections in different scenarios. Users can select the type of automotive fuel, including gasoline, liquefied petroleum gas (LPG), compressed natural gas (CNG), and ethanol. Moreover, the QRO-401 comes with a range of basic accessories, including a probe, probe hose, spare fuse, leak test cap, spare filter, user manual, power cord, ground wire, calibration controller head, and calibration connection hose, and optional items such as a printer, print paper, PC software, and a computer connection cable are also available.