multi N/C 2100S (duo, pharma)
Function and design
17
Figure 2 Analyzer, left side wall opened
1 TIC condensation module (behind it:
condensation coil)
2 Combustion system
3 Gas box
Figure 3 Sample supply system (on device top)
1 TC lock
2 Switch for opening the TC lock
3 TIC lock
3.1.1
Sample supply system
Septum lock
A septum lock is used as a TIC lock. The septums normally used are temperature-resis-
tant and have a high puncture tolerance. The septum lock is included in the pharma
model, but it is not used.
Septum-free lock
A septum-free lock is used as a TC lock. The TC lock is used for sample supply for TC and
TN analyses. The lock ensures high particle mobility and low carry-over. A pneumatically
driven folding mechanism provides entry into the combustion system.
During sample supply, no foreign substances may enter the analyzer. The sealing of the
system is achieved via a septum on the syringe.
During autosampler operation, the lock is actuated automatically. In manual operation,
the user must open and close the toggle switch to the left of the locks.
