EU authorised to assemble the technical file, that the product(s) EXT Compound Turbomolecular pump: EXT400/200/30H B756-60-000 to which this declaration relates is in conformity with the following standard(s) or other...
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For return of equipment, complete the HS Forms at the end of this manual. Illustrations Figure Page Dimensions of the EXT400/200/30H split flow pump (units in mm) ..........7 EXT400/200/30H split flow system .................. 10 Correct installation of inlet-screen .................. 12 Mounting attitude of the EXT400/200/30H split flow pump .............13 Installation of optional accessories ..................
Split Flow Compound Turbomolecular Vacuum Pump. Please read and follow all instructions in this manual. The EXT400/200/30H Split Flow Compound Turbomolecular Vacuum Pump is designed for use with an Edwards EXDC Controller. Read this manual and the instruction manual supplied with your controller before you attempt to install or operate the equipment.
CAUTION Do not use the EXT400/200/30H Split Flow pump to pump gases containing more than 20 % oxygen. If you do, the lubricant will polymerise and the pump will fail prematurely. Note: Concentrations of gases may be modified by the compression of the pump.
≥15 seconds Time for rotational speed to reduce to 50 % ≤ 0.5 bar gauge Purge gas pressure If you wish to use purge pressures in excess of this value, consult Edwards. Table 3 - Technical data Parameter EXT400/200/30H Notes Mass 14.67 kg...
WARNING The impeller blades on an EXT400/200/30H are very sharp. Care should be taken when handling the pump not to dislodge or damage the protective inlet screens. WARNING Under no circumstances must a part of the human body be exposed to a vacuum.
The customer must ensure safe ducting of the backing line if oil mist or hazardous substances are present. WARNING The EXT400/200/30H must not be operated, or vented from a positive pressure gas supply, with a restricted/blocked backing line. CAUTION Do not use the EXT400/200/30H Split Flow pump with a backing pressure below 5 x 10 mbar (5 x 10 Pa).
When using the manual vent valve supplied, we recommend that you either limit the vent or only open the vent-valve after the EXT400/200/30H Split Flow pump speed has fallen to 50 % of full rotational speed.
The customer must ensure appropriate routing of cables and pipework to avoid slip/trip hazards. The EXT400/200/30H Split Flow pump should be electrically bonded to earth using the connection provided (M5 thread located next to the pump electrical connector). Refer to the instruction manual supplied with the controller to complete the electrical installation.
3.6.2 Forced-air cooling An air-cooler accessory is available for the EXT400/200/30H pump (refer to Section 7). Fit the air-cooler as described in the instruction manual supplied with it. If you wish to use an alternative fan for air-cooling, ensure that the flow rate is above 70 m (40 cfm).
Use the procedure below to shut down a basic, manually-controlled pumping system with a manual vent-valve and an EXDC Controller. Refer to the EXC Controller instruction manual when using an EXC Controller. 1. Close the valve in the backing-line connecting the EXT400/200/30H Split Flow pump to the backing-pump. 2. Switch off the backing-pump.
B756-60-880 Issue D 4. When the EXT400/200/30H Split Flow pump rotational speed has fallen below 50 % of full rotational speed, turn the manual vent-valve anti-clockwise to open it. Refer to Section 3.4 for venting procedure. Safety interlocks and control system The pump protection and safety interlock features are listed below.
Rotor life The fatigue life of the EXT400/200/30H rotor is typically 40,000 to 50,000 cycles of acceleration from rest to full speed and then back to rest. As a precautionary measure, Edwards recommends that pumps are returned for a major service (rotor replacement) after 20,000 cycles or ten years, whichever occurs first.
Note that if you use an EXDC Pump Drive Module to control the EXT400/200/30H Split Flow pump, or if you use an EXC Controller configured for remote operation to control the EXT400/200/30H Split Flow pump, some of the checks...
In this event, use appropriate Personal Protective Equipment when handling and disposing of the pump, and ensure that all pump inlets and outlets are capped off before disposal. Dispose of the EXT400/200/30H Split Flow Turbomolecular Pump and any components and accessories safely in accordance with all local and national safety and environmental requirements.
Inlet-screens are fitted to your pump as supplied to prevent damage from the entry of debris into the pump. The Item Number of replacement inlet-screens is given in Table 7.3.2 Inlet-flange seals The EXT400/200/30H Split Flow pump is supplied with inlet seals. The Item Number of replacement seals is given in Table Table 7 - Spares Description Item Number...
D396-14-000 7.4.4 Pump-to-controller cables You must fit a pump-to-controller cable between an EXC Controller and the EXT400/200/30H Split Flow pump. A cable is not supplied with the EXT400/200/30H Pump or the EXC Controller (except EXC100L). Refer to Table Table 10 - Pump-to-controller cable...
ACX250H B580-53-160 7.4.7 VRX vent-restrictor Use a VRX fixed orifice vent-restrictor to restrict the flow of vent gas into the EXT400/200/30H Split Flow pump. Refer to Section 3.4 for information on the selection of the correct VRX vent-restrictor. Refer to...