Thermo Scientific EA IsoLink IRMS System Operating Manual page 66

2
Analytical Principles
Pneumatic Circuit
Table 15. Parts of the Automatic Switching Block
Component
EV1
EV2
EV3
EV4
38 EA IsoLink IRMS System for CNSOH Operating Manual
He
PRV1 F
He
PI1
O F
PRV2
2
O
2
PI2 EV1
2
3 1
6.5 mL/min.
300 kPa
3 1
EV2 2
S1
EVP1
1
2
EFC - T
He
PRV1 F
He
PI1
O
F
PRV2
2
O
2
PI2 EV1 2
3 1
6.5 mL/min.
300 kPa
3 1
EV2 2
S1
EVP1
1
2
EFC - T
Description and function
In combustion NCS analysis controls the reference gas flow through the right channel.
In pyrolysis O,H analysis controls the carrier gas flow through the right channel.
In combustion NCS analysis controls the carrier gas flow through the right channel.
In pyrolysis O,H analysis controls the reference gas flow through the right channel.
In combustion NCS analysis controls the carrier gas flow to the ConFlow.
In pyrolysis O,H analysis controls the reference gas flow to the ConFlow.
In combustion NCS analysis controls the purge gas flow to the right autosampler.
In pyrolysis O,H analysis controls the purge gas flow to the left autosampler.
S2
EVP2 1
2
(5)
F
(6)
F
(7)
EV4
EV3 1
1
2
2
(4)
COMBUSTION NCS
(1)
AUTOMATIC
(2)
SWITCHING BLOCK
(5)
(2)
(1)
(4)
S2
EVP2 1
2
(5)
F
(6)
F
(7)
EV4 1
1 EV3
2 2
HIGH TEMPERATURE MODE
(4)
PYROLYSIS, O, H
(1)
AUTOMATIC
(2)
SWITCHING BLOCK
(5)
(2)
(1)
(4)
HO
(7)
NCS
(6)
(8)
MS
Purge HO
(9)
(3) Purge NCS
HO
(7)
NCS
(6)
(8) MS
Purge HO
(9)
(3) Purge NCS
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