| 1. | After memory is set , disconnect differential gauge
记忆设置后，断开压差表。 |
| 2. | Note : it is important that the differential gauge needle drops slowly
注意：重要的是差压计指针缓慢下降。 |
| 3. | Industrial pressure gauges - metallic pressure gauge indicators - differential gauges
工业压力计.金属指示压力计.差压计 |
| 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. | 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。 |
| 9. | Caution : to prevent freezing , hold test kit vertically to drain differential gauge and hoses prior to placing in case
警告：为了防止冰冻，在进行安置前，要保持检测组件与排泄差压表和软管垂直。 |
| 10. | If the differential gauge rises above 0 , there is excessive leakage at shutoff # 2 and it must be replaced to test the assembly
如果差压计上升到0以上，则2号关闭阀的泄漏过于严重，必须更换以进行总成的检测。 |
