VS Series Helium Mass Spectrometer Leak Detectors
4-4
DRAFT 4/
23/15
NOTE Always perform a Full Internal Calibration after any
spectrometer maintenance:
Table 4-3 Fuses and Circuit Breakers
Function
Ty pe, MFG , PIN Location
Circuit Breaker
❑ Main Power Supply: 20 A, 250 V
AC, SCHURTER
Model EF12, PIN
EF1
2.2196.1110.01
❑ Internal Vacuum Pump: 6 A,
250 V E-T-A, PIN
1
110-Fl12-PIMl-6 A
Power Entry Module
Rear Panel
Fuses (PCB overcurrent
protection)
1.85 A, 33 VDC, Raychem
SMD185-2
❑ Motherboard (RT400)
❑ Valve Driver (Fl)
❑ Ion Source (Fl)
❑ Front Panel Controller
(RT400)
5x20mm, T4A, 4A, 250V AC,
Cooper/Bussmann S505-4A
Turbo Con t r o l l e r ( F 2)
❑ Spectrometer header replacement
❑ Filament replacement
❑ Ion source assembly replacement or cleaning
Table 4-3 lists the fuses and circuit breakers.
NOTE Only a qualified technician should replace circuit breakers and
fuses. Use only circuit breakers and fuses of the same type and
rating.
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