| 1. | The verifing method of a relativey pressure gauge and discuss
微压差表校验初探 |
| 2. | After memory is set , disconnect differential gauge
记忆设置后，断开压差表。 |
| 3. | Table of leeway
风压差表 |
| 4. | Connect , vent and prepare the differential gauge . refer to instructions furnished with the gauge
连接、排气和预备压差表。参阅压差表附带的使用说明。 |
| 5. | Slowly loosen hose connection at tc # 3 until differential gauge rises to about 2 psi , then tighten
慢慢松开连接在测试旋塞3号上的软管直到压差表上升到大约2psi ，然后紧固。 |
| 6. | Adjust balancing valve until pressure differential gauge reads pressure drop required for desired flow rate gpm
调整平衡阀直到压差表读出压降符合所要求的流量（加仑/分钟）为止。 |
| 7. | How to connect and prepare differential pressure gauge ( refer to drawing included with differential gauge instructions )
关于如何连接和预备压差表（请参阅压差表说明书上的图表） 。 |
| 8. | Series pg differential pressure meters are designed for use with all watts flow measurement valves and flow measurement orifices
系列pg压差表适用于所有美国瓦茨流量测量阀和流量测量孔。 |
| 9. | Observe the pressure differential gauge . if there is a decrease in the indicated value , the no . 1 check valve is reported as leaking
观察压差表。如果指示值有下降，则1号止回阀就报告为泄漏。 |
| 10. | Close shutoff no . 1 . slowly loosen hose connection at tc # 2 until differential gauge rises to about 2 psi then tighten . if the differential reading does not decrease record check valve as tight
关闭1号关闭阀。慢慢松开连接在测试旋塞2号上的软管直到压差表上升到大约2psi ，然后紧固。如果压差读数没有降低，则记录止回阀为密封紧密。 |
