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发明公开
CN106092440A 一种用于差压变送器的检测装置 有权

一种用于差压变送器的检测装置
摘要：
本发明公开了一种用于差压变送器的检测装置，包括空气增压泵和三通接头，空气增压泵的压缩气体输出端与三通接头的一路端子相联通，三通接头的另两路输出两路气源，一路气源为静压气源通路，另一路为气压气源通路，静压气源通路的输出端与差压变送器的低压端相联通，给差压变送器提供可调节的静压输入，气压气源通路的输出端与差压变送器的高压端相联通，给差压变送器提供可调节的高压输入。本发明的用于差压变送器的检测装置，按照具体差压变送器的高压端和低压端的工作压力提供不同的差压压力，实现对差压变送器工作环境下误差的精确测量，只需要配置一个空气增压泵，极大降低了装置成本，具有良好的应用前景。
摘要（英）：

The invention discloses a detection device used for a differential pressure transmitter. The detection device comprises an air booster pump and a three-way joint. A compressed air output end of the air booster pump is communicated with one path of terminal of the three-way joint. The other two paths of the three-way joint output two paths of air sources, one path of air source is a static pressure air source path, and the other path is a pressure air source path. An output end of the static pressure air source path is communicated with a low pressure end of the differential pressure transmitter so as to provide adjustable static pressure input to the differential pressure transmitter. An output end of the pressure air source path is communicated with a high pressure end of the differential pressure transmitter so as to provide adjustable high pressure input to the differential pressure transmitter. According to the invention, different differential pressures are provided according to specific working pressures of the high pressure end and the low pressure end of the differential pressure transmitter, the error of the differential pressure transmitter is precisely measured under the working environment, only one air booster pump is needed, the device cost is substantially lowered, and the application prospect is good.

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