Thermo Scientific Vanquish VH-D10 Operating Manual page 80

5 • Installation
Page 80
1. Calculate p6 = p5 + p3.
p6: Pressure at the inlet port of the flow cell
p5: Backpressure caused by the flow cell
p3: Backpressure the connected additional module produces at the
flow cell outlet
2. Compare p6 with the pressure limit of the flow cell.
Situation
p6 is at least 5 bar below
the pressure limit of the
flow cell
p6 is less than 5 bar
below the pressure limit
of the flow cell or above
the limit
TIP The tests described in this section are designed to determine the
static pressure inside the flow cell. They cannot detect pressure spikes
that can occur when switching a valve.
If you intend to use a switching valve downstream of the flow cell,
ensure enough safety margin for pressure spikes.
See also
2
Flow Cell Specifications (} page 174)
Steps
The configuration can be used.
Operate the system configuration at a reduced flow
rate.
–or–
Change the system configuration (for example, the
transfer capillary) to meet the specification of the flow
cell.
Diode Array Detectors (VH-D10)
Operating Manual