Edwards IH Instruction Manual - Ideal Vacuum Products
Edwards IH Instruction Manual - Ideal Vacuum Products
Edwards IH Instruction Manual - Ideal Vacuum Products
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1.3 The iH system<br />
The iH system operates at pressures between atmospheric and ultimate vacuum with no<br />
lubricating or sealing fluid in the pumping chamber(s). This ensures a clean pumping system<br />
without back-migration of oil into the system being evacuated.<br />
The iH80 system has an HCDP80 dry pump; the iH600 system has an HCDP80 dry pump,<br />
with an HCMB600 mechanical booster pump fitted to the inlet of the HCDP80 pump; the<br />
iH1000 system has an HCDP80 dry pump, with an HCMB1000 mechanical booster pump<br />
fitted to the inlet of the HCDP80 pump. The HCDP80 pump is referred to as the HCDP<br />
pump and the HCMB600 and HCMB1000 pumps are referred to as the HCMB pumps<br />
throughout the remainder of this manual.<br />
Both the HCDP and HCMB pumps have enclosed, water-cooled motors. The iH system is<br />
therefore suitable for applications in clean environments where fan cooling of motors is<br />
unacceptable.<br />
The iH system has a gas system which introduces purge gas into the HCDP pump. This gas<br />
system is suitable for use on harsh duty processes. If you use the iH system on light or<br />
medium duty processes, you can use the economiser gas mode to reduce the consumption of<br />
purge nitrogen by the pumping system.<br />
You can manually control the iH system through the Pump Display Terminal: see<br />
Section 1.13. Alternatively, you can use your process tool or other control equipment to<br />
control the operation of the iH system through an Interface Module accessory (refer to<br />
Section 8.5.3), or through an iM Communications Module accessory (see Section 8.5.2), or you<br />
can use the iH Single Equipment Monitor accessory to control the operation of the iH system<br />
(refer to Section 8.5.4). The remainder of this manual describes the use of the Pump Display<br />
Terminal to operate the iH system: for use of another accessory to operate the iH system, refer<br />
to the instruction manual supplied with the accessory.<br />
1.3.1 iH-F variants<br />
All iH-F variants include an innovative Breach Sensor that reduces the risk of hazardous gas<br />
leaks during run 'til crash. The iH-F Breach Sensor alerts the user, via the Pump Display<br />
Terminal (PDT) and Fabworks, if installed, with the words `Warning 7801 - O Ring’<br />
indicating that the pump requires attention. Please refer to table of warnings in Section 6 for<br />
further details.<br />
WARNING<br />
The iHF Breach Sensor is not a safety device.<br />
Failure to use normal control measures in the event of a leak could result in<br />
injury to people and damage to equipment.<br />
The components of the iH system are described in the following sections.<br />
1-4 iH Dry Pumping Systems