| 单晶硅压力变送器故障检查 |
| 添加时间：2019/8/12 11:12:58 浏览次数： |
| 故障检查 Fault check 变送器测量部分的检查 Inspection of Transmitter Measurement Section 拆下法兰，检查敏感部件隔离膜片有无变形，破损和漏油现象发生。 Remove the flange and check whether the isolation diaphragm of the sensitive parts is deformed, damaged and oil leakage. 拆下补偿板，不取出敏感部件，检查插针对壳体的绝缘电阻，在电压不超过100V的情况下，绝缘电阻不应小于100MΩ。 Remove the compensating plate, do not take out the sensitive parts, check the insulation resistance inserted into the shell, in the case of voltage not exceeding 100V, the insulation resistance should not be less than 100M. 接通电路和气路，当压力信号为量程上限值时，关闭气源，输出电压和读数值应稳定不动。如果输出电压下降，则说明变送器有泄漏，可用肥皂水检查出泄漏部位。 When the pressure signal is the upper limit of the range, turn off the gas source, and the output voltage and reading value should be stable. If the output voltage drops, it means that the transmitter has leakage. Soap water can be used to detect the leakage site. |
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