Internal Zero/Span Assembly; Figure 9-9. 410Iq Flow Schematic With Zero Span (Standard); Figure 9-10. 410Iq Flow Schematic With Zero/Span (High Level) - Thermo Scientific 410iQ Instruction Manual

Optional Equipment

Internal Zero/Span Assembly

Internal
With the internal zero/span assembly option, a source of span gas is
connected to the SPAN port and a source of zero air is connected to the
Zero/Span
ZERO port. Zero and span gas should be supplied at atmospheric pressure.
Assembly
It may be necessary to use an atmospheric dump bypass plumbing
arrangement to accomplish this. Figure 9–9 and Figure 9–10 shows how
this option is integrated with the 410iQ Standard and 410iQ High Level.
Figure 9–9. 410iQ Flow Schematic with Zero Span (Standard)
Figure 9–10. 410iQ Flow Schematic with Zero/Span (High Level)
Thermo Scientific 410iQ Instruction Manual 9-17