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Edwards IH Instruction Manual - Ideal Vacuum Products

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5.16 Operation of the load-lock pump<br />

Note:<br />

Operation of the iH system with high inlet pressure may result in shaft-seal pressure warnings<br />

(refer to Table 6-1): the operation of the iH system will not be affected, and you can ignore these<br />

warnings.<br />

If you have connected a load-lock pump to the iH system through an Interface Module, you<br />

can use the following menus to control the operation of the load-lock pump:<br />

• Switch On.<br />

• Switch Off.<br />

• Setup/Service/<strong>Manual</strong>/Load lock pump.<br />

5.17 Disconnect box and photohelic switch/gauge (accessories)<br />

Operation of the pumping system with the disconnect box and photohelic switch/gauge is<br />

described in the following sections. If the photohelic switch/gauge is not installed, all<br />

references to it should be ignored.<br />

The following sections assume that the disconnect box and photohelic switch/gauge (if fitted)<br />

have been correctly installed and that the pump and accessories have been installed with<br />

reference to their own instruction manuals.<br />

5.17.1 Normal startup<br />

• Ensure that the door is closed and secured before operating the disconnect box.<br />

• Press the DRY PUMP POWER ON/RESET push button on the disconnect box control panel.<br />

• Control and monitoringof the system is now enabled through the Pump Display Terminal.<br />

5.17.2Restart after fault<br />

WARNING<br />

The disconnect box will remain live even with the door open. Do not attempt<br />

any servicing in the box before you have isolated the incoming electrical<br />

supply<br />

Press the DRY PUMP POWER ON/RESET push button on the disconnect box control panel.<br />

iH Dry Pumping System 5-15

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