164 Operation Manual
10 Configuration
3
Scroll to Cryo Type (Valve BV).
If the value is not N2, press [Mode/Type], select N2 Cryo,
press [Enter] and then [Clear].
This tells the GC what coolant will be used.
Configure the user-configurable heater
Many of the following steps tell you to reboot the GC. Ignore
these requests by pressing [Clear]. Do not reboot until
specifically told to do so in these instructions.
1 Press [Config] and select Aux 1. Press [Enter].
2 Enter the following control values. Press [Enter], then
[Clear] after each one.
a Proportional Gain—5.30
b Integral Time—10
c Derivative Time—1.00
d Mass (Watt- sec/deg)—18
e Power (Watts)—To find the watts to set here, scroll to
Back Inlet Status (BINLET). Note the watts value and enter
it for this parameter.
f Cryo Control Mode—Press [Mode/Type]. The first line
should already be PTV. Select Cryo Trap.
g Zone Control mode—Press [Mode/Type] and select PTV.
h Sensor—Press [Mode/Type] and select Thermocouple.
i Maximum Setpoint—400
j Maximum Programming Rate—720
Reboot the GC
Press [Options], select Communications, and press [Enter]. Select
Reboot GC and press [On/Yes] twice.
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