Agilent Technologies G8610A Operation Manual page 134

Function
Tuning adjustments
Mechanical pump fluid change
Table 8-3 lists the fuses and circuit breakers.
Function
Circuit Breaker
Fuses (PCB overcurrent
protection)
134
Agilent Technologies Helium Leak Detector
Table 8-2 As-Required Maintenance
If calibration is not successful or if the system is calibrated
to an external leak, tuning can maximize the helium signal.
Persistent, high helium background signal. Fluid
contamination (dirty brown color indicates burnt or
contaminated fluid, milky white consistency indicates high
water vapor content in fluid).
Always perform a Full Internal Calibration after any
NOTE
spectrometer maintenance:
❑
Spectrometer header replacement
❑
Filament replacement
❑
Ion source assembly replacement or cleaning
Table 8-3 Fuses and Circuit Breakers
Type, MFG, PIN
❑
Main Power Supply: 20 A, 250 V
AC, SCHURTER 
Model EF12, PIN
EF12.2196.1110.01
Internal Vacuum Pump: 6 A, 
❑
250 V E-T-A, PIN
1110-Fl12-PIMl-6 A
1.85 A, 33 VDC, Raychem
SMD185-2
5x20mm, T4A, 5A, 250V AC,
Cooper/Bussmann S505-4A
Only a qualified technician should replace circuit breakers and
NOTE
fuses. Use only circuit breakers and fuses of the same type and
rating.
Most Common Symptom
Location
Power Entry Module
Rear Panel
❑
Motherboard (RT400)
❑
Valve Driver (Fl)
❑
Ion Source (Fl)
Turbo Controller (F2)