YZS數(shù)顯氧指數(shù)測(cè)定儀是檢測(cè)儀器，用于均質(zhì)材料、層壓材料、泡沫材料、軟片和薄膜材料，在常溫常壓下，氧、氮混合氣體中調(diào)節(jié)剛好維持試樣燃燒的氧濃度。本機(jī)采用電機(jī)及調(diào)速系統(tǒng)一體化結(jié)構(gòu)驅(qū)動(dòng)減速機(jī)，經(jīng)減速后帶動(dòng)絲杠進(jìn)行加載。電氣部分包括試驗(yàn)力測(cè)量系統(tǒng)和變形測(cè)量系統(tǒng)。并具有過(guò)載保護(hù)、位移控制等功能。設(shè)計(jì)簡(jiǎn)單，使用方便，性能穩(wěn)定安全。

The oxygen index analyzer is a testing instrument for homogeneous materials, laminated materials, foam materials, films and film materials. At normal temperature and pressure, the oxygen and nitrogen mixtures are adjusted to just maintain the oxygen concentration of the sample. This machine adopts the integrated structure of motor and speed control system to drive the reducer, and after the deceleration, the lead screw is loaded for loading. The electrical part includes a test force measurement system and a deformation measurement system. And has overload protection, displacement control and other functions. Simple design, easy to use, stable and safe performance.

YZS數(shù)顯氧指數(shù)測(cè)定儀符合標(biāo)準(zhǔn)：

依據(jù)《EN ISO 4589-2:2006-06室溫氧指數(shù)測(cè)試》及《GBT 2406-1993 塑料燃燒性能試驗(yàn)方法 氧指數(shù)法》《GBT 8924-2005 纖維增強(qiáng)塑料燃燒性能試驗(yàn)方法氧指數(shù)法等要求生產(chǎn)。

The oxygen index analyzer meets the standards:

It is produced according to the requirements of "EN ISO 4589-2: 2006-06 Room Temperature Oxygen Index Test" and "GBT 2406-1993 Test Method for Burning Performance of Plastics.

YZS數(shù)顯氧指數(shù)測(cè)定儀技術(shù)參數(shù)：

★測(cè)量范圍：0-A、/02

★分辨率：0.1%、/02

★測(cè)量精度：(±0.4%)、/02

★響應(yīng)時(shí)間：

★數(shù)顯精度：0.1%±1個(gè)字

★輸出漂移：<5%/年

★秒表：精度0.5s

★外形尺寸約：360×250×530mm

★保修期：發(fā)貨后12個(gè)月

★儀器的工作條件：

★環(huán)境溫度：-10℃-40℃

★相對(duì)濕度： ≤85%

★使用氣體：GB3863工業(yè)用氣態(tài)氧；GB3864工業(yè)用氣態(tài)氮；兩瓶氣體均要調(diào)壓器（用戶自配）

★輸入壓力：(0.25-0.4) Mpa

★工作壓力：O.lMpa

Technical parameters of oxygen index analyzer:

★ Measuring range: 0-A, / 02

★ Resolution: 0.1%, / 02

★ Measurement accuracy: (± 0.4%), / 02

★ Response time:

★ Digital display accuracy: 0.1% ± 1 character

★ Output drift: <5% / year

★ Stopwatch: 0.5s accuracy

★ Approximate dimensions: 360 × 250 × 530mm

★ Warranty period: 12 months after delivery

★ Working conditions of the instrument:

★ Ambient temperature: -10 ℃ -40 ℃

★ Relative humidity: ≤85%

★ Gas used: GB3863 industrial gaseous oxygen; GB3864 industrial gaseous nitrogen; both bottles of gas need pressure regulator (user-supplied)

★ Input pressure: (0.25-0.4) Mpa

★ Working pressure: O.lMpa

YZS數(shù)顯氧指數(shù)測(cè)定儀操作方法：

★檢查氣路，確定各部分連接無(wú)誤，無(wú)漏氣現(xiàn)象。

★確定實(shí)驗(yàn)開(kāi)始時(shí)的氧濃度：根據(jù)經(jīng)驗(yàn)或試樣在空氣中點(diǎn)燃的情況，估計(jì)開(kāi)始實(shí)驗(yàn)時(shí)的氧濃度。如試樣在空氣中迅速燃燒，則開(kāi)始實(shí)驗(yàn)時(shí)的氧濃度為18%左右；如在空氣中緩慢燃燒或時(shí)斷時(shí)續(xù)，則為21%左右；在空氣中離開(kāi)點(diǎn)火源即馬上熄滅，則至少為25%。根據(jù)經(jīng)驗(yàn)，確定該地板革氧指數(shù)測(cè)定實(shí)驗(yàn)初始氧濃度為26%。氧濃度確定后，在混合氣體的總流量為10l/min的條件下，便可確定氧氣、氮?dú)獾牧髁?。例如，若氧濃度?6%，則氧氣、氮?dú)獾牧髁糠謩e為2.5l/min和7.5l/min。

★安裝試樣：將試樣夾在夾具上，垂直地安裝在燃燒筒的**位置上（注意要?jiǎng)?0mm標(biāo)線），保證試樣頂端低于燃燒筒頂端至少100mm，罩上燃燒筒（注意燃燒筒要輕拿輕放）。

★通氣并調(diào)節(jié)流量：開(kāi)啟氧、氮?dú)怃撈块y門，調(diào)節(jié)減壓閥壓力為0.2～0.3MPa（由教員完成），然后開(kāi)啟氮?dú)夂脱鯕夤艿篱y門(在儀器后面標(biāo)注有紅線的管路為氧氣，另一路則為氮?dú)?應(yīng)注意：先開(kāi)氮?dú)?，后開(kāi)氧氣，且閥門不宜開(kāi)得過(guò)大),然后調(diào)節(jié)穩(wěn)壓閥，儀器壓力表指示壓力為0.1±0.01MPa，并保持該壓力（禁止使用過(guò)高氣壓）。調(diào)節(jié)流量調(diào)節(jié)閥，通過(guò)轉(zhuǎn)子流量計(jì)讀取數(shù)據(jù)（應(yīng)讀取浮子上沿所對(duì)應(yīng)的刻度），得到穩(wěn)定流速的氧、氮?dú)饬?。?yīng)注意：在調(diào)節(jié)氧氣、氮?dú)鉂舛群?，必須用調(diào)節(jié)好流量的氧氮混合氣流沖洗燃燒筒至少30s（排出燃燒筒內(nèi)的空氣）。

★點(diǎn)燃試樣：用點(diǎn)火器從試樣的頂部中間點(diǎn)燃，勿使火焰碰到試樣的棱邊和側(cè)表面。在確認(rèn)試樣頂端全部著火后，立即移去點(diǎn)火器，開(kāi)始計(jì)時(shí)或觀察試樣燒掉的長(zhǎng)度。點(diǎn)燃試樣時(shí)，火焰作用的時(shí)間A長(zhǎng)為30s，若在30s內(nèi)不能點(diǎn)燃，則應(yīng)增大氧濃度，繼續(xù)點(diǎn)燃，直至30s內(nèi)點(diǎn)燃為止。

★確定臨界氧濃度的大致范圍：點(diǎn)燃試樣后，立即開(kāi)始記時(shí)，觀察試樣的燃燒長(zhǎng)度及燃燒行為。若燃燒終止，但在1s內(nèi)又自發(fā)再燃，則繼續(xù)觀察和記時(shí)。如果試樣的燃燒時(shí)間超過(guò)3min，或燃燒長(zhǎng)度超過(guò)50mm（滿足其中之一），說(shuō)明氧的濃度太高，必須降低，此時(shí)記錄實(shí)驗(yàn)現(xiàn)象記“×”，如試樣燃燒在3min和50mm之前熄滅，說(shuō)明氧的濃度太低，需提高氧濃度，此時(shí)記錄實(shí)驗(yàn)現(xiàn)象記“Ο”。如此在氧的體積百分濃度的整數(shù)位上尋找這樣相鄰的四個(gè)點(diǎn)，要求這四個(gè)點(diǎn)處的燃燒現(xiàn)象為“ΟΟ××”。例如若氧濃度為26%時(shí)，燒過(guò)50mm的刻度線，則氧過(guò)量，記為“×”，下一步調(diào)低氧濃度，在25%做**次，判斷是否為氧過(guò)量，直到找到相鄰的四個(gè)點(diǎn)為氧不足、氧不足、氧過(guò)量、氧過(guò)量，此范圍即為所確定的臨界氧濃度的大致范圍。

★在上述測(cè)試范圍內(nèi)，縮小步長(zhǎng)，從低到高，氧濃度每升高0.4%重復(fù)一次以上測(cè)試，觀察現(xiàn)象，并記錄。

★根據(jù)上述測(cè)試結(jié)果確定氧指數(shù)OI。

Operation method of oxygen index analyzer:

★ Check the gas path to make sure that all parts are connected correctly and there is no air leakage.

★ Determine the oxygen concentration at the beginning of the experiment: Based on experience or the ignition of the sample in the air, estimate the oxygen concentration at the beginning of the experiment. If the sample burns rapidly in the air, the oxygen concentration at the beginning of the experiment is about 18%; if it burns slowly or intermittently in the air, it is about 21%; when it leaves the ignition source in the air and immediately goes out, At least 25%. According to experience, it is determined that the initial oxygen concentration of the floor leather oxygen index measurement experiment is 26%. After the oxygen concentration is determined, the flow rate of oxygen and nitrogen can be determined under the condition that the total flow rate of the mixed gas is 10 l / min. For example, if the oxygen concentration is 26%, the flow rates of oxygen and nitrogen are 2.5 l / min and 7.5 l / min, respectively.

★ Install the sample: Clamp the sample on the fixture and install it vertically on the ** position of the combustion cylinder (note the 50mm mark) to ensure that the top of the sample is at least 100mm lower than the top of the combustion cylinder. Note that the burner should be handled gently.

Ventilation and flow adjustment: Open the oxygen and nitrogen cylinder valves, adjust the pressure reducing valve pressure to 0.2 to 0.3 MPa (completed by the instructor), and then open the nitrogen and oxygen pipeline valves (the pipeline marked with a red line on the back of the instrument is oxygen, and the other The other way is nitrogen, it should be noted that: first open nitrogen, then open oxygen, and the valve should not be opened too large), and then adjust the pressure regulator valve, the instrument pressure gauge indicates that the pressure is 0.1 ± 0.01MPa, and maintain this pressure (prohibited use High pressure). Adjust the flow control valve and read the data through the rotor flowmeter (the corresponding scale on the upper edge of the float should be read) to obtain a stable flow of oxygen and nitrogen. It should be noted that after adjusting the concentration of oxygen and nitrogen, the combustion cylinder must be flushed with the adjusted flow of oxygen-nitrogen mixed gas for at least 30s (exhaust the air in the combustion cylinder).

★ Ignite the sample: Use an igniter to ignite from the middle of the top of the sample. Do not let the flame hit the edges and side surfaces of the sample. After confirming that the top of the sample is on fire, remove the igniter immediately and start timing or observe the length of the sample burned out. When the sample is ignited, the flame action time A is 30s. If it cannot be ignited within 30s, increase the oxygen concentration and continue to ignite until it ignites within 30s.

★ Determine the approximate range of critical oxygen concentration: immediately after igniting the sample, start timing and observe the burning length and burning behavior of the sample. If the combustion is terminated, but spontaneously re-ignites within 1 s, continue observation and timing. If the burning time of the sample exceeds 3min, or the burning length exceeds 50mm (one of them is satisfied), it means that the oxygen concentration is too high and must be reduced. At this time, record the experimental phenomenon and record “×”. For example, if the sample burns before 3min and 50mm When it is off, it means that the oxygen concentration is too low, and the oxygen concentration needs to be increased. At this time, the experimental phenomenon "0" is recorded. In this way, looking for such four adjacent points on the integer digits of the volume percentage concentration of oxygen, it is required that the combustion phenomenon at these four points is “0 ××”. For example, if the oxygen concentration is 26% and the 50mm mark is burned, the excess oxygen will be marked as “×”. Next, adjust the oxygen concentration to 25% and do it ** times to determine whether it is oxygen excess until the phase is found. The four adjacent points are oxygen deficiency, oxygen deficiency, oxygen excess, and oxygen excess, and this range is the approximate range of the determined critical oxygen concentration.

★ In the above test range, reduce the step size, from low to high, repeat the test more than once for every 0.4% increase in oxygen concentration, observe the phenomenon, and record.

★ Determine the oxygen index OI based on the above test results.

YZS數(shù)顯氧指數(shù)測(cè)定儀注意事項(xiàng)：

★本設(shè)備是試驗(yàn)測(cè)試設(shè)備請(qǐng)不要將本設(shè)備用于規(guī)定試驗(yàn)及料以外的目的。

試樣制作要精細(xì)、準(zhǔn)確，表面平整、光滑。

氧、氮?dú)饬髁空{(diào)節(jié)要得當(dāng)，壓力表指示處于正常位置，禁止使用過(guò)高氣壓，以防損壞設(shè)備。

流量計(jì)、玻璃筒為易碎品，實(shí)驗(yàn)中謹(jǐn)防打碎。

★請(qǐng)完善安裝環(huán)境

請(qǐng)置于室溫下。濕度低的場(chǎng)所。（80%以下無(wú)結(jié)露）灰塵和塵埃少的場(chǎng)所。

★請(qǐng)按要求安裝試驗(yàn)材料

按要求安裝試驗(yàn)材料，否則可能出現(xiàn)A預(yù)期故障。

★進(jìn)行配線和維護(hù)作業(yè)時(shí)，請(qǐng)務(wù)必關(guān)閉電源

為了防止在作業(yè)過(guò)程中機(jī)器失去控制而導(dǎo)致事故和觸電，請(qǐng)?jiān)谶M(jìn)行作業(yè)前，務(wù)必先關(guān)閉電源。

★電源

關(guān)于本設(shè)備的電源，請(qǐng)注意以下事項(xiàng)。

原則上配電方式采用單相220V電源。

關(guān)于電源及電源工程，請(qǐng)與電氣工程人員或有同等知識(shí)的人士商量。

★電源線

請(qǐng)務(wù)必使用隨設(shè)備提供的電源線。發(fā)現(xiàn)電源線和電源插頭有異常情況時(shí)，請(qǐng)與本公司聯(lián)系。同我公司服務(wù)人員進(jìn)行更換或指導(dǎo)更換。

★保險(xiǎn)絲

為了防止火災(zāi)和內(nèi)部電路的破損等，請(qǐng)不要用規(guī)定以外的保險(xiǎn)絲。更換保險(xiǎn)絲時(shí)，請(qǐng)使用與原設(shè)備相同型號(hào)和形狀的保險(xiǎn)絲。

★特別警告

警告應(yīng)注意所執(zhí)行的應(yīng)用、或條件均具有很高的危險(xiǎn)性，可能導(dǎo)致人員受傷或甚至死亡。

為了防止意外傷害或死亡發(fā)生，在搬移和使用設(shè)備時(shí)，請(qǐng)務(wù)必先觀察清楚，然后再進(jìn)行動(dòng)作。

Note of oxygen index analyzer:

★ This equipment is a test equipment. Please do not use this equipment for purposes other than specified tests and materials.

The preparation of the sample should be fine and accurate, and the surface should be smooth and smooth.

The flow of oxygen and nitrogen must be properly adjusted. The pressure gauge indicates that it is in the normal position. It is forbidden to use excessively high pressure to prevent damage to the equipment.

The flowmeter and glass tube are fragile, so be careful not to break them during the experiment.

★ Please perfect the installation environment

Please leave it at room temperature. Places with low humidity. (No condensation below 80%) Place with little dust and dust.

★ Please install test materials as required

Install the test materials as required, otherwise A expected failure may occur.

★ Be sure to turn off the power when performing wiring and maintenance work

In order to prevent accidents and electric shock caused by the machine losing control during the work, please turn off the power before working.

★ Power

Regarding the power of this device, please note the following.

In principle, a single-phase 220V power supply is used for power distribution.

For power supply and power supply engineering, please consult with electrical engineering personnel or persons with equivalent knowledge.

★ Power cord

Be sure to use the power cord provided with the device. If you find anything abnormal with the power cord and plug, please contact us. Replace or instruct the replacement with our service personnel.

★ Fuse

To prevent fire, damage to internal circuits, etc., do not use fuses other than those specified. When replacing fuses, use fuses of the same type and shape as the original equipment.

★ Special warning

WARNING It should be noted that the application or condition being performed is highly dangerous and could result in injury or even death.

To prevent accidental injury or death, be sure to observe clearly when moving and using the equipment before moving.

YZS數(shù)顯氧指數(shù)測(cè)定儀裝箱清單：

★主機(jī)：1臺(tái)

★玻璃管：2根

★玻璃珠：1斤（放入燃燒柱內(nèi)）

★尼龍管：1.2米f連接燃燒柱與主機(jī)）

★密封圈：若干

★試樣夾：l套

★金屬網(wǎng)：1個(gè)（放入燃燒柱內(nèi)）

★板手10-12：1把

★橡皮管：2根

★Ml0×1內(nèi)接頭螺釘：1顆（接燃燒柱內(nèi)）

★Ml0×1接頭螺母：l顆（接主機(jī)）

★說(shuō)明書(shū)：1份

★合格證：1張

★GB/T2406標(biāo)準(zhǔn)：1份

Packing list of oxygen index analyzer

★ Host: 1

★ Glass tube: 2

★ Glass Beads: 1 kg (into the combustion column)

★ Nylon tube: 1.2m f connecting the combustion column and the host)

★ Seal ring: several

★ Sample holder: l set

★ Metal mesh: 1 (inside the combustion column)

★ Wrench 10-12: 1

★ rubber tube: 2

★ Ml0 × 1 inner joint screw: 1 (inside the combustion column)

★ Ml0 × 1 connector nut: 1 pc (connect to the host)

★ Instruction: 1 copy

★ Certificate of Conformity: 1

★ GB / T2406 standard: 1 copy