IS215ACLEH1B通用電氣卡件
信號超出范圍
當(dāng)傳感器信號讀數(shù)超過通道配置數(shù)據(jù)中的預(yù)定水平時(shí)，將顯示信號超出范圍警告消息。該預(yù)定水平高于工作范圍。這提供了一個警告，即傳感器檢測到氣體水平超過通道的設(shè)置工作范圍。只有在檢查傳感器處于清潔（非目標(biāo)氣體）空氣中未校準(zhǔn)后，才能重置鎖定信號超范圍警告條件。對于從未校準(zhǔn)過的新通道卡，顯示未校準(zhǔn)信息。應(yīng)校準(zhǔn)通道卡并檢查其操作。校準(zhǔn)過期當(dāng)預(yù)配置的校準(zhǔn)間隔過期時(shí)，將顯示校準(zhǔn)過期消息。這是傳感器標(biāo)定到期的警告消息。校準(zhǔn)完成后，信息將清除。如果需要，可以使用工程接口軟件配置程序禁用此功能。當(dāng)傳感器零點(diǎn)信號低于預(yù)先配置的水平且無法實(shí)現(xiàn)零點(diǎn)校準(zhǔn)時(shí)，校準(zhǔn)期間會顯示零點(diǎn)信號過低消息。對于催化傳感器，這通常意味著傳感器的兩個檢測元件之間存在很大的不平衡。應(yīng)檢查傳感器安裝有無松動的電線或更換傳感器。對于mA傳感器，這通常表示傳感器的mA輸出需要校準(zhǔn)。
零信號過高
當(dāng)傳感器零點(diǎn)信號高于預(yù)先配置的水平且無法實(shí)現(xiàn)零點(diǎn)校準(zhǔn)時(shí)，校準(zhǔn)過程中會顯示零點(diǎn)信號過高消息。這是檢測其目標(biāo)氣體的傳感器的典型情況，傳感器應(yīng)使用零氣體?；蛘?，對于催化傳感器，這通常意味著傳感器的兩個檢測元件之間存在很大的不平衡。應(yīng)檢查傳感器安裝有無松動的電線或更換傳感器。對于mA傳感器，這通常表示傳感器的mA輸出需要校準(zhǔn)。校準(zhǔn)信號過低當(dāng)傳感器量程信號低于預(yù)先配置的水平且無法實(shí)現(xiàn)量程校準(zhǔn)時(shí)，校準(zhǔn)過程中會顯示校準(zhǔn)信號過低消息。這表明傳感器輸出過低是由于以下原因之一：a.傳感器故障，可能中毒或損壞。b、 校準(zhǔn)氣體不正確。檢查校準(zhǔn)氣瓶證書和年齡。c、 諸如氯或氨之類的粘性氣體沒有到達(dá)傳感器。校準(zhǔn)信號過高當(dāng)傳感器量程信號高于預(yù)配置水平且無法實(shí)現(xiàn)量程校準(zhǔn)時(shí)，校準(zhǔn)過程中會顯示校準(zhǔn)信號過高消息。這表明傳感器輸出過高是由于以下原因之一：a.傳感器故障、布線不良或傳感器配置錯誤。b、 校準(zhǔn)氣體不正確。檢查校準(zhǔn)氣瓶證書和年齡。當(dāng)校準(zhǔn)氣體調(diào)整到低于預(yù)先配置的水平時(shí)，校準(zhǔn)期間會顯示校準(zhǔn)氣體過低消息。這在正常本地操作下不會顯示，因?yàn)楣こ炭ò粹o的預(yù)配置操作數(shù)據(jù)將阻止此類調(diào)整。
Signal Over Range
The signal over range warning message is displayed when the sensor signal reading is more than a predetermined level held within the channel configuration data. This predetermined level is above the operating range. This provides a warning that the sensor is detecting a level of gas exceeding the set operating range of the channel. The reset of a latched signal overrange warning condition should only be carried out after checking that the sensor is in clean (non target gas) air Uncalibrated The uncalibrated message is displayed for new channel cards that have never been calibrated. The channel card should be calibrated and its operation checked.Calibration Overdue The calibration overdue message is displayed when the pre-configured calibration interval has expired. This is a warning message that the sensor is due for calibration. Once the calibration has been completed the message will clear.If required, this function can be disabled using the Engineering Interface Software configuration program.The zero signal too low message is displayed during calibration when the sensor zero signal is below the pre-configured levels and a zero calibration can not be achieved. For catalytic sensors this would typically signify there is a large imbalance between the two detecting elements of the sensor. The sensor installation should be checked for loose wires or the sensor replaced. For mA sensors this would typically signify that the mA output from the sensor requires calibrating.
Zero Signal Too High
The zero signal too high message is displayed during calibration when the sensor zero signal is above the pre-configured levels and a zero calibration can not be achieved. This is typical of the sensor detecting its target gas and zero gas should be applied to the sensor. Alternatively, for catalytic sensors, this would typically signify there is a large imbalance between the two detecting elements of the sensor. The sensor installation should be checked for loose wires or the sensor replaced. For mA sensors this would typically signify that the mA output from the sensor requires calibrating.Calibration Signal Too Low The calibration signal too low message is displayed during calibration when the sensor span signal is below the pre-configured levels and a span calibration can not be achieved.This indicates that the output from the sensor is too low due to either: a. a faulty sensor which may be poisoned or damaged. b. the calibration gas is incorrect. Check the calibration gas bottle certificate and age. c. sticky gas such as chlorine or ammonia is not reaching the sensor.Calibration Signal Too High The calibration signal too high message is displayed during calibration when the sensor span signal is above the preconfigured levels and a span calibration can not be achieved. This indicates that the output from the sensor is too high due to either: a. a faulty sensor, bad cabling or wrong sensor defaults in configuration. b. the calibration gas is incorrect. Check the calibration gas bottle certificate and age.The calibration gas too low message is displayed during calibration when the calibration gas is adjusted to a level below the pre-configured level. This would not be indicated under normal local operation since the pre-configured operational data of the Engineering Card push-buttons will prevent this type of adjustment.
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