3-4  Chapter 3: Gas Line Connection  42/24-10 EN Rev. 9 
Caldos25, Caldos27: Gas Connections 
 
Figure 3-4 
1
2
34
7
8910
12 11
14
13
 
 
1  Sample Gas Inlet 
2  Sample Gas Outlet 
3  Purge Gas Inlet Analyzer 
4  Purge Gas Outlet Analyzer 
7  Purge Gas Inlet Housing
 1)
 
8  Purge Gas Outlet Housing
 1)
 (also with Flow Sensor) 
9  Pressure Sensor 1
 1)
 
10  Pressure Sensor 2
 1)
 
  Pneumatics Module
 1)
: 
11  Sample Gas Inlet 
12  End Point Gas Inlet (with 3 solenoids) 
13  Test Gas/Zero-Point Gas Inlet (with 1 or 3 solenoids) 
14  Sample Gas Outlet – Connect with Inlet 1 
Gas Connections 
1) Option