19 Troubleshooting
19.1 Troubleshooting
310
GC-2010 Plus
19.1.1 Gas and pressure settings
19.1.1.1 When the pressure/flow rate cannot be set or does not attain the set value
19.1.1.2 Continual gas leaks
If tubing or connections are damaged, replace them.
If the problem can not be solved, contact your shimadzu representative.
Possible Cause Solution
No gas is supplied. Open gas cylinder main valve to supply gas.
Supply pressure is low.
Set carrier gas supply pressure to 300 to 980 kPa.
Hydrogen: 300 to 500 kPa
Air: 300 to 500 kPa
Makeup gas: 300 to 980 kPa
Gas leaks
Check for gas leaks, and tighten leaking connections.
Replace gasket or septum.
(Refer to “2.6 Gas supply plumbing” in the Instruction
Manual.)
AFC/APC: Incorrect valve set.
Set value is outside controllable range.
Set pressure to proper value.
(Refer to “3 AFC, APC” in the Instruction Manual.)
Carrier gas type, column length, inner diameter and
film thickness are incorrect.
Set carrier gas type, column length, inner diameter
and film thickness correctly.
(Refer to “12.5.2” and “12.6.2 Setting the flow rate”
and “12.5.3 Setting column parameters” in the
Instruction Manual.)
Total flow rate is set too low, and pressure cannot
increase.
(In this case, measured flow rate of split vent is
extremely low.)
Increase the total flow rate.
(Refer to “3 AFC, APC” in the Instruction Manual.)
Split vent trap is clogged.
(Even if total flow rate is set high, the measured flow
rate from the split vent is low and the pressure is
high.)
Replace trap.
(Refer to “18.8 Inspection and Maintenance: Flow
Controller” )
Possible Cause Solution
Part is incorrectly installed.
Install part correctly.
(Refer to “2.6 Gas supply plumbing” in the Instruction
Manual.)
Graphite ferrule or other seal is damaged. Replace damaged gasket part with a new one.
To Next Page
Loading...
Need help?
General
