CD-3408型全自动开口闪点仪（中英文说明）

CD-3408型全自动开口闪点仪(中英文说明)

产品说明

本仪器是一款自动的开口闪点试验器，是理想的同类进口仪器的替代产品，可广泛用于铁路、航空、电力、石油行业及科研部门。 

 一、CD-3408型全自动开口闪点仪（中英文说明）主要技术特点

1、本仪器采用彩色液晶大屏幕显示，全中文人机对话界面，无标识键盘，可对预值温度、试样标号、大气压强、试验日期等参数，具有提示菜单、导向式输入功能。
2、模拟跟踪显示升温与试验时间的函数曲线，具有中文误操作软件提示修改功能，配有试验日期、试验时间等参数提示功能。
3、自动校正大气压强对试验的影响并计算修正值。
4、微分检测，系统偏差自动修正。
5、划扫、检测、打印数据自动完成，试验臂自动升起和落下。

6、人性化的外形设计，美观、安全、操作方便。

二、CD-3408型全自动开口闪点仪（中英文说明）主要技术参数及指标

I. Summary

The instrument is designed and made as per the National Standard of People’s Republic of ASTM/ D92,China GB/T3536 “Test Methods for Flash Point and Fire Point of Petroleum Products （Cleveland Open Cup Methods）”. It is suitable to determine the Cleveland open cup flash point of petroleum products, excepting fuel oils and petroleum products having open cup flash point lower than 79 ℃.

The instrument adopts SCM controlling technologies, colored LCD screen, man machine conversation interface, and blank buttons. The expected flash point, sample serial number, barometric pressure and test date can be preset. It has menu prompt and input guide function. It uses open, fuzzy control software, and modularization structure. It is advanced, friendly, convenient, and accurate, so it is the best choice of similar instruments. It has been widely used for petroleum products flash point and fire point test in the field of railway, aviation, power, petroleum, scientific research institutes, measurement and inspection department, and college and universities.

II. Main technical specification and parameters

1. Power supply: AC 220V±10%, 50 Hz;

2. Temperature measurement:

（1） Measurement range: room temperature～400℃;

（2） Repeatability: ≤4℃;

（3） Reproducibility: ≤8℃;

（4） Resolution: 0.1℃;

（5） Accuracy: 0.5%;

3. Temperature rising speed: as per GB/T3536;

4. Ignition mode: using an electron device to ignite. Gas flame of 3~4㎜ for flame application.

5. Ambient temperature: 10~40℃;

6. Relative humidity: ≤80%;

7. Total power consumption: not more than 400 W;

III. Instrument characteristics

1. The instrument adopts colored LCD screen, man machine conversation interface, and blank buttons. It can preset parameters, such as temperature, sample serial number, barometric pressure, and test date, etc. It has prompt menu and input guide functions.

2. It can show temperature-time curve. It has prompt function for operation error, and prompt function for test date and test time.

3. It can correct the effect of barometric pressure to the test and calculate the modified value.

4. It is with differential detection function. It can correct the system deviation automatically.

5. Flame application, flash point detection, and test data printing can be completed automatically. The test arm can be raised up and lowered down automatically.

6. It is with electron igniter and it has forcible wind cooling function （Note: The manual flame application button is at the left side of the instrument）.

IV. Working principle

Fill sample in the oil cup, and then heat the oil cup at the condition stipulated in the National Standard of People’s Republic of China GB/T3536. The flash point is expressed as the lowest temperature, when the gas mixture of oil sample vapor and the air around contacts flame and appears flash.

Continue to test, and take the lowest temperature when the sample is on fire and burns for at least 5 s as the fire point of the oil sample.

The instrument adopts SCM and outer circuit to form signal collection, processing, calculation, output, and control system. The CPU will send an order to control the heater as per the temperature change collected by the sensor so that the sample temperature can rise at a constant rate. The flame application, flame application interval, and flash detection can be automatically controlled.

When the flash point is detected, the instrument will stop collecting data. Then it will show flash point temperature and print out test data. If you need to determine the fire point, please continue heating the sample. When there is fire appears and the sample is burning for 5 s, the fire will be extinguished by the fire extinguishing plate. Then the arm will be raised up and the test is over.

V. Full set and technical documents

1. Full set