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Condition:
  New
Part Number:
  P106753
Warranty:
  Varian Warranty

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$260.51


Print Version

Agilent Varian Overtemp 365ºF Thermal Switch for AX-65 Diffusion Pump Heater Harnesses, L9964001


Agilent Varian Replacement Over Temperature 365ºF Thermal Switch for AX-65 Diffusion Pump Heater Harnesses
Agilent Varian Part Number L9964001

This is a 365ºF replacement thermal switch for the following AX-65 diffusion pump heater harnesses:
  • 200W, 115 VAC heater harness, PN L9994307
  • 250W, 115 VAC heater harness, PN L9994303
  • 200W, 220 VAC heater harness, PN L9994308
  • 250W, 220 VAC heater harness, PN L9994304
  • 250W, 165 VAC heater harness, PN L9994302
  • 250W, 90 VAC heater harness, PN L9994301
This is a replacement over temperature thermal switch. A normally-closed, over temperature thermal switch has been attached to the diffusion pump body via the heater harness on the side of the pump. Loss of cooling, high temperatures, high pressure, or low fluid level causes the contacts of the thermal switch to open. When the problem has been corrected, the thermal switch automatically resets to closed. The switch is set to open at 365ºF. See #6 on (diagram exploded view & parts) illustration below for location.



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Specifications
Specification Units AX-65 with cold cap AX-65 with baffle
Operating Range
Torr
mbar
3x10⁻³ to < 5x10⁻⁸
3.9x10⁻³ to < 6.5x10⁻⁸
8.0x10⁻³ to < 5x10⁻⁸
10.4x10⁻³ to < 6.5x10⁻³
Pumping Speed,
Maximum
l/s, Air
l/s, Helium
65
90
30
65
Throughput (Air), Max.
Optimum Range

Overload Range
(@ 1x10⁻² Torr)
Torr-l/s
mbar-l/s

Torr-l/s
mbar-l/s
0.19
0.25

0.30
0.40
Forepressure, Max.
No Load


Full Load
Torr
mbar

Torr
mbar
0.75
1.00

0.60
0.78
Compression Ratio Air
He
4x10⁻⁷
4x10⁻⁶
Backstreaming Rate
at Pump Inlet
mg/cm² < 2x10⁻⁴ < 2x10⁻⁵
Electrical Power
VAC, 50/60 Hz
1 Phase
Watts 200/250
Warmup Time minutes 7
Cooldown Time minutes 10
Fluid Charge cc 30
Recommended
backing pump
capacity
cfm (m³/hr) ≥ 1.5 (2.5)
Cooling Fan cfm 30
Inlet Flange N/A NW50 or ISO-63-K
Body N/A Stainless steel
Jet Assembly N/A Three-stage, self-aligning, aluminum, w/ aluminum cold cap
Net Weight lbs (kg) 8 (3.63)

AX-65 Diffusion Pump Replacement Parts List

Description Part No. Item
Jet Assembly L9674301 1
Cold Cap L9675301 2
Inlet Baffle L9706001 3
Inlet Baffle Retrofit Kit R1160065 3
Jet Alignment Kit L9995301 4
Heaters (one heater required per pump) 5
   90 V / 250 watt Heater Harness L9994301 5.1
   115 V / 250 watt Heater Harness L9994303 5.2
   165 V / 250 watt Heater Harness L9994302 5.3
   220 V / 250 watt Heater Harness L9994304 5.4
   115 V / 250 watt Heater Harness L9994307 5.5
   220 V / 250 watt Heater Harness L9994308 5.6
Normally Closed Thermal Switch (set to open at 365°) L9964001 6
Optional Normally Open Switch (set to close at 170°) L9964002 7
Fan 661300138 8
Foreline Baffle L9676301 9
Inlet Centering Ring Assembly, NW50 with Viton O-ring L9680301 10
Foreline Centering Ring Assembly, NW16 with Viton O-ring KC16AV 11
Bottom Insulation L9701002 12
Santovac 5 diffusion pump fluid, 40 cc 695405001 13
PDF Logo Agilent Varian AX-65 Diffusion Pump Manual.PDF

PDF Logo Agilent Diffusion Pumps Catalog.pdf



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CONTACT US
Ideal Spectroscopy
5910 Midway Park Blvd NE,
Albuquerque, NM 87109-5805

Phone: (505) 872-0037
Fax: (505) 872-9001
info@idealspectroscopy.com



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