Q150T Sample Preparation System
Q150T - Instruction Manual 79 10473 - Issue 5
Table 25 Carbon Pulse/Rod Evaporation profile parameters
Name Default
Value
Minimum
Value
Maximum
Value
Comment
Material Carbon Fixed; read only parameter
Pulse current (A) 60 (cord)
75 (rod)
0 120 Current applied to cord during
the evaporation pulse
Max Pulse
Voltage (V)*
20 (cord)
10 (rod)
0 20 The voltage across the cord is
limited to this value during the
evaporation pulse
Pulses Length (s) 1 0.02 10 Time is second that the pulse is
applied for
Number of pulses 1 1 5 Number of consecutive pulse
cycles
Pulse interval (s) 10 1 30 The time between the start of
consecutive pulse cycles. Must
exceed pulse length.
Outgas time (s) 10 2 60 Time cord or rod is outgassed
before pulse cycle(s).
Outgas current
(A)
30 (cord)
20 (rod)
0 40 Current applied at the start of
outgas step.
Max Outgas
current (A)
40 0 50 Maximum current permitted
during outgas.
Max Outgas
voltage (V)
10 0 20 Maximum voltage permitted
during outgas
Outgas source* Yes No Yes Include or exclude outgassing
step
Tooling factor 5 0.1 10 Tooling factor for this process
Pump hold* No No Yes
If Yes, Q150T pumps down to
outgas-ready state and waits for
user input.
Note: If hold time (set in
System | Vacuum | Pump hold
time – see page 46 is
exceeded, Q150T vents
chamber.
Flush chamber* No No Yes
Set to Yes to flush chamber
with nitrogen before pumping
down.
* Admin group level required to edit this property