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nEXT 300T HC ISO100 Turbomolecular Pump 160W

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nEXT 300T HC ISO100 Turbomolecular Pump 160W nEXT300 Turbomolecular Pump nEXT Turbo Pumps EDWARDS Turbomolecular Pumps
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Overview:
The nEXT is a hybrid bearing compound turbomolecular pump. nEXT pumps combine our proven bearing technology (oil lubricated ceramic lower bearing with dry permanent magnetic upper bearing), an improved rotor design with a new molecular drag stage to deliver improved pumping speed and compression ratios, and user serviceability. They feature 24 V to 48 V d.c. sensor less motors with a built in drive that is fully compatible with our range of TAG and TIC controllers. They are available pre-set for either 80 W or 160 W maximum power, the former enabling use with our 100 W TIC controllers are also recommended for pumping Argon, but with a longer ramp time to full operating speed.

Features & Benefits:
• Value for money - exceptional pumping speeds and compression ratios 
• No unplanned downtime - field proven reliability in the most demanding environments 
• Easy integration - standard fit in many scientific instruments 
• Reliability for peace of mind - over 200,000 turbomolecular pumps installed 
• Low cost of ownership - end user serviceable

Technical Data:
Inlet flange DN100ISO-K, DN100CF
Outlet flange DN25NW
Pumping speed  
  N2 300 ls-1
  He 340 ls-1
  H2 280 ls-1
Compression ratio D / T  
  N2 >1 × 1011
  He 1 x 108  / >1 x 108
  H2 5 x 105 / 1 x 106
Ultimate pressure with RV backing pump ISO/CF <6 x 10-8 / <5 x 10-10 mbar
Recommended backing pump* RV12/nXDS10i
Vent port 1/8 inch BSP female
Purge port 1/8 inch BSP female
Max continuous inlet flow (Nitrogen)  
Water cooling (water at 15°C, ambient temp at 40°C) 95 sccm
Forced air cooled, 35 °C ambient 115 sccm
Pump rotational speed  
Nominal rotational speed 60000 rpm
Standby rotational speed Variable from 33000 to 60000 rpm (42000 rpm default)
Programmable power limit settings Variable from 50-200W (160W default)
Start time to 90% speed D / T 160 W 155 / 175
Analogue outputs Pump rotational speed;
Power consumption; Pump temp; Controller temp
Cooling method# Forced air / water
Ambient air temp for forced air cooling 5 - 35°C
Min cooling water flow rate (water 15°C) 15 l h-1
Water temp range 10 - 20°C
Max inlet flange temp 80°C
Operating attitude Vertical and upright, through to 
Horizontal +/- 2°
Noise level at 1 metre <45 dB(A)
Max magnetic field pump can tolerate 5 mT
Recommended controller TIC200 turbo and instrument controller
Quiescent electrical power Typically 20W

*  A smaller backing pump may be used depending on application. A suitable diaphragm pump with ultimate <5 mbar may also be used e.g. XDD1.
†  Above this inlet pressure, rotational speed drops to below nominal.  
#  Air and water cooling accessories must be ordered separately
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