Instruction manual

4.0 PIPING SM425 INSTRUCTION MANUAL
check span gas calibration contact output and adjust air-set (pressure regulator) so span gas flow is
within the permitted range.
Figure 4-9 SM425CAL Autocalibration unit piping diagram
If blow back is used, prepare blow back piping according to Section 1.20.1.
Blow back is used to get rid of particulate on the detector by injecting compressed air in the high-
temperature probe adapter.
Figure 4-10 Piping for System 3
42500001 REV A 75