成人欧美日韩,草草影院一区二区,色欲久久久天天综合网,亚洲黄色麻豆传媒av

本站熱搜:氧化鋯氧量分析儀,盤裝式氧量分析儀,電磁流量計(jì),WSS雙金屬溫度計(jì)
  • 技術(shù)文章ARTICLE

    您當(dāng)前的位置:首頁(yè) > 技術(shù)文章 > Common faults and causes of zirconia oxygen analyzers

    Common faults and causes of zirconia oxygen analyzers

    發(fā)布時(shí)間: 2024-12-13  點(diǎn)擊次數(shù): 907次

    1. System maintenance.

    If the oxygen indicator shows zero or no oxygen indication in the oxygen quantity converter, first check whether the oxygen indication circuit open. If the circuit is normal, check whether the zirconia probe is normal. At a temperature of 700℃, measure the DC millolt value of the oxygen cell. If the potential is greater than 1 millivolt and the resistance is greater than 100Ω, it indicates the probe is aged and needs to be replaced with a sensor or probe. If the potential is less than 1 millivolt and the resistance is less than100Ω, it indicates an open circuit in the wiring, which should be checked and handled one by one.

    2. constant temperature system failure.

    (1) If the heating temperature cannot be maintained, check whether there is a short circuit or open circuit in the resistance wire inside the heating furnace The normal resistance of the heating furnace wire is about 60-80Ω. If the resistance wire is open or the resistance measured by the multimeter less than 60Ω, the heating furnace wire should be replaced.

    (2) When the converter shows that the temperature is too high or out of control, it not only causes inaccurate oxygen display but also acceler the aging or damage of the zirconia head. At this point, you should immediately check if the thermocouple is open-circuited, or a multimeter to check the thermocouple. If the resistance is greater than 20Ω, it is judged that the thermocouple is open-cuited, and the thermocouple and zirconia head should be replaced; another reason for the temperature失控is: relay or temperature control circuit failure, relay or temperature control circuit failure will cause the oxygen converter to always be in one of the heating voltages of the heating furnace, thus leading to an increase in.

    3. oxygen cell fault.

    (1) After the oxygen cell has been used for a period of time, the contact points of its leads may become oxidized, resulting in contact or detachment. This can cause the Em value (in units of a multimeter) to fluctuate and become unstable. Observe the oxygen cell and take action.

    (2) When the oxygen signal deviation is too large or inaccurate, it may be due to a short circuit in the zirconia electrode, which case the wiring of the zirconia cell should be checked for short circuits. When the temperature does not rise, if the internal resistance is less than 0Ω, it indicates a short circuit in the electrode, and the zirconia head needs to be replaced.

    (3) During the operation of the oxygen measurement device, if the background potential exceeds 10mV or is less than -30mV, it must be recalibrated. If the background potential remains abnormal after calibration, it indicates that the probe has aged and can no longer be used.

    4. pneumatic circuit failure.

    (1) The zirconia head is clogged with ash, causing an obstruction in the reference gas circulation. This results in a decrease in probe output potential Em and an increase in the background potential Eo. In this case, blowing several times with a bulb syringe at the gas inlet of the will resolve the issue after the gas line is unclogged.

    (2) Oxygen cell ash blockage: The probe should be removed from the ash blockage and the filter should be reinstalled.

    (3) Probe leakage has a significant impact on the probe.

    5. The oxygen content on both sides of the boiler is too high.

    By adjusting the boiler combustion conditions, when starting or stopping the boiler fan or coal mill group, if the oxygen content deviation on both sides of the boiler is large, it is a normal phenomenon. Once the boiler combustion conditions stabilize, the oxygen content display will return to normal. If the unit adjustment is not in place and the deviation is large on both sides, it is necessary to check if the zirconia head is working properly by dismantling the transmitter for inspection. The device requires the operator to adjust the gas flow. The gaseous and reference state gases should continuously flow through the electrode without stopping, and there should be no dead ends. However, too large a flow will have a cooling effect, making the cell temperature uneven and causing errors. If the flow is too small, it is not only easy to form stagnant gas flow and dead zones but also may cause local changes in oxygen concentration due to the conduction of oxygen ions, thus affecting the accuracy of the measurement and causing deviations on both sides.

    6. On-site interference causes failures.

    For newly installed instruments, due to the strong electromagnetic field, when an unstable fault occurs, the first thing to consider is the interference issue.


產(chǎn)品中心 Products
在線客服 聯(lián)系方式 二維碼

服務(wù)熱線

0550-2409223

掃一掃,關(guān)注我們

皖公網(wǎng)安備 34118102000850號(hào)

nc18嫩草| 麻豆y一区二区| 大香蕉精品在线播放| 插菊花av综合网国产区| 色婷婷精品国产一区二区三区在线 | 熟女XX一级片| 午夜福利亚洲激情专区| 乱视频亚洲欧洲久久| 蜜桃66视频| AV亚洲综合色女| 国产小美女免费在线观看| 国产淫荡对白在线观看| 粉嫩AV.com| AV一区二区二三区| 欧美一级第一射| 国产精品在线播放91| 92麻豆第二页| 日韩人妖网页| 久久国产日本免费| 亚洲一二区中文| 操逼逼三级片| 五月婷婷 在线视频| 亚洲午夜伦理片| 大鸡吧叉逼逼| AV站传媒| 二区无码无码| 国产欧美版日韩综合| 日韩伦理精品视频一二三区| 京东热加勒比视频一区二区| 日韩系列黄片| 91操视频在线| 少妇高潮P| 日产成人在线| 人妻大屁股一区| 国产的丰满超碰| 亚洲婷婷久久五月天综合| 鸡巴爆插小穴在线视频| 黑人操人妻| 成品精品色色| 99淫高清| 日本日B免费福利视频|