Chromatograph Series
User Manual
MRC Instrument
5
7.1.2 Notes for Operating FID
1)
The detector is a high sensitivity detector, must be high-latitude carrier gas (99.99% N2) and the carrier gas,
hydrogen and air should be purified by the purifier.
2)
When aging the column, do not connect the column to the detector, so as not to pollute the detector. The
temperature of the attached column is 230
℃
. Do not open the hydrogen gas source when aging the column.
3)
Close the hydrogen and air sources before each operating temperature is unbalanced and prevents the detector
from accumulating in the water.
4)
During the ignition, do not make the button pressed for too long, so as not to damage the ignition ring.
5)
When using the instrument's highest sensitivity profile or programmed temperature analysis, the column used
should be thoroughly aged.
6)
After the instrument is switched on, the temperature of the carrier gas should be raised first, then the FID
detector will be ignited when the humidity exceeds 100
℃
.
7)
In order to facilitate ignition, it is recommended to adjust the hydrogen flow rate faster first, and then to ignite.
After ignition, slowly adjust the hydrogen flow back to the required flow value for analysis.
8)
Before the instrument is shut down, the hydrogen (fire) should be closed off, cooling, and then close the carrier
gas.
