| 一、全自動閉口閃點儀概述
BS-2008型全自動閉口閃點儀，用于測定石油產(chǎn)品的閉口閃點值。本儀器采用彩色液晶屏幕顯示，全中文人機對話界面，無標(biāo)識鍵盤，開放式、模糊控制集成軟件，模塊化結(jié)構(gòu)等技術(shù)；對可預(yù)置溫度、試樣標(biāo)號、大氣壓強、試驗日期等參數(shù)具有提示菜單，導(dǎo)向式輸入的工作方式。本儀器自動化程度高，使用方便、快捷，符合中華人民共和國標(biāo)準(zhǔn)GB/T261-2008《閃點的測定 賓斯基-馬丁閉口杯法》規(guī)定的試驗要求，是理想的同類進口儀器的替代產(chǎn)品，可廣泛用于鐵路、航空、電力、石油行業(yè)及科研部門。 二、全自動閉口閃點儀適用標(biāo)準(zhǔn)及適用范圍
本儀器是根據(jù)國家標(biāo)準(zhǔn)GB/T261-2008《閃點的測定 賓斯基-馬丁閉口杯法》所規(guī)定的要求設(shè)計制造的。適用于按該標(biāo)準(zhǔn)規(guī)定的方法,測定石油產(chǎn)品用閉口杯、在規(guī)定條件下,加熱到它的蒸汽與空氣的混合氣接觸火焰發(fā)生閃火時的zui低溫度，即閉口杯法閃點。 三、全自動閉口閃點儀主要技術(shù)指標(biāo)和參數(shù)
1、工作電源 AC220V±10%， 50Hz；
2、溫度測量 量程 室溫～350℃；
重復(fù)性 ≤2℃；再現(xiàn)性 ≤4℃；
分辨性 0.1℃；精度 0.5%；
3、基數(shù)參數(shù) 升溫速度 符合GB/T261-2008標(biāo)準(zhǔn)；
點火方式 電子點火、氣體火焰；
4、環(huán)境溫度 （10～40）℃；相對濕度 ≤80%；
5、整機功耗 不大于500W。
四、全自動閉口閃點儀工作原理
本儀器在國家標(biāo)準(zhǔn)GB/T261-2008規(guī)定的條件下，把試樣裝入試驗杯，對裝有試驗油的試驗杯加熱，產(chǎn)生的石油蒸氣與周圍空氣形成的混凝合成氣體在火焰接觸發(fā)生閃火時的zui低溫度作為閃點。
計算機根據(jù)所采集的溫度變化情況由I/O口發(fā)出指令，控制加熱器，使試驗油溫度按一定速率上升，掃描周期、點火時間、微分檢測等均實施自動控制，當(dāng)閃火被測出時，計算機系統(tǒng)停止數(shù)據(jù)采集，顯示閃火溫度并打印記錄結(jié)果，停止加熱，關(guān)閉火焰，大臂自動抬起，實驗結(jié)束。
五、全自動閉口閃點儀儀器成套性 1、全自動閉口閃點儀儀器成套 | 序號 | 名 稱 | 單位 | 數(shù)量 | | 1 | 全自動閉口閃點儀 | 臺 | 1 | | 2 | 油杯 | 個 | 1 | | 3 | 電源線（250V 10A） | 根 | 1 | | 4 | 打印紙 | 卷 | 1 | | 5 | 點火絲 | 個 | 5 | | 6 | 點火器 | 把 | 1 | |
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I. Summary
The instrument is used to determine closed cup flash point of petroleum products. The instrument adopts colored LCD screen, man machine conversation interface, blank buttons, open and fuzzy controlled integration software, and modular structure. It can preset temperature, sample ID, barometric pressure, test date, and other parameters. It has prompt menu and input guide. The instrument is automatic, convenient, and rapid. It can meet the requirements of the National Standard of People’s Republic of China GB/T261-2008 “Test Methods for Flash Point of Petroleum Products （Pensky-Martens Closed Cup Method）”. It is the best choice of similar products. It can be widely used in the field of railway, aviation, power plant, petroleum industry, and scientific research institutes.
II. Purpose and scope
The instrument is designed and made as per the National Standard GB/T261-2008 “Test Methods for Flash Point of Petroleum Products （Pensky-Martens Closed Cup Method）”. It is suitable to determine closed cup flash point of petroleum products, which is expressed as the lowest temperature when the mixture of its vapor and air contacts flame and appears flash, using a closed oil cup under the stipulated condition.
III. Main technical specification and parameters
1. Power supply: AC 220V±10%, 50 Hz;
2. Temperature measurement:
（1） Full scale: room temperature～350℃;
（2） Repeatability: ≤2℃;
（3） Reproducibility: ≤4℃;
（4） Resolution: 0.1 ℃;
（5） Accuracy: 0.5%;
3. Basic parameters:
（1） Temperature rising speed: as per GB/T261-2008;
（2） Ignition mode: Electron device for ignition; gas flame for flame application;
4. Working environment:
（1） Ambient temperature: 10～40℃;
（2） Relative humidity: ≤80％;
5. Total power consumption: not more than 300 W;
IV. Working principle
Fill sample in the test cup, and heat the test cup containing sample on the instrument as per the requirements of the National Standard GB/T261-2008. The flash point is expressed as the lowest temperature when the mixture of sample vapor and air contacts flame and appears flash.
The controlling system can send orders through I/O port as per the collected temperature changes to control the heater, so that the sample temperature will increase at a certain rate. The
V. Full set and technical documents
1. Full set
| No. | Name | Unit | Quantity |
| 1 | Main unit | Set | 1 |
| 2 | Oil cup | Piece | 1 |
| 3 | Power supply wire （250V 6A） | Piece | 1 |
| 4 | Printing paper | Roll | 1 |
2. Technical documents
（1） Operation Manual 1 piece
（2） Quality Certificate 1 piece
（3） Repair Guarantee 1 piece
flame application interval, flame application time, and flash detection can be automatically controlled. When a flash is detected, the controlling system will stop collecting data. Then the instrument will show flash point value and print out test results. The heater will stop working, the flame is extinguished, and the test arm is automatically raised up. The test is over.
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