Thermo Scientific 146i, Инструкция по эксплуатации

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Optional Equipment
Six Span Inputs
9-10 Model 146 i Instruction Manual Thermo Fisher Scientific
6. Measure the flow rate into the ZERO bulkhead on the rear panel of the
146 i . Be sure that the charcoal scrubber is connected. Note the flow and
measured gas concentration.
7. From the flow and measured concentration, compute the permeation
tube release rate.
Six Span Inputs
The six span input option increases the number of span ports from three
(standard) to six.
Span Gas Mass Flow
Controller
The span gas mass flow controller governs low gas flow to control gas being
diluted. Span gas mass flow controllers include:
• 25 SCCM
• 50 SCCM
• 100 SCCM (standard)
• 200 SCCM
• 500 SCCM
Zero Gas Mass Flow
Controller
The zero gas mass flow controller governs high gas flow to control zero air.
Zero gas mass flow controllers include:
• 5 SLPM
• 10 SLPM (standard)
• 15 SLPM
• 20 SLPM
I/O Expansion Board
Assembly
The I/O expansion board provides six analog current output channels (0-20
mA or 4-20 mA) and eight analog voltage inputs (0-10V). The DB25
connector on the rear panel provides the interface for these inputs and
outputs.