Dionex ASE 150, Operator'S Manual

Page: 120 / 176

ASE 150 Operator’s Manual
112
Doc. 065207-02 9/08
B.2.5 Checking Pressure Readings
1. Turn on the main power switch on the ASE 150 rear panel.
2. On the
MENU
screen, select
DIAGNOSTICS
and press
ENTER
to display
the
DIAGNOSTICS
screen (see Figure B-3 ).
3. Select
REGULATORS
and press
ENTER
to display the
REGULATORS
screen (see Figure B-4 ).
NOTE The
COMPRESSION
and
AUTOSEAL
pressure
readings are zero unless a run is in progress.
4. Compare the pressure readings on the
REGULATORS
screen with the
values listed in the table below. If a pressure reading does not meet
specification, contact Dionex.
Figure B-3. Diagnostics Screen
Figure B-4. Regulators Screen
Field Function Specification
SYSTEM Internal system pressure 0.34
±
0.02 MPa
(50
±
3 psi)
COMPRESSION Pressure applied when the oven is compressed 0.90
±
0.03 MPa
(130
±
5 psi)
BOTTLE Pressure applied to the solvent reservoir
0.03 to 0.07 MPa
a
(4 to 10 psi)
a) Nominally set for 0.04 MPa (6 psi). The pressure may increase during periods of system
inactivity, but will return to a value within the specification as soon as a run begins.
AUTOSEAL Pressure applied when the AutoSeal air
cylinder is actuated 0.14
±
0.01 MPa
(21
±
2 psi)
SENSORS
REGULATORS
HYDROCARBON SENSOR
EXTRACTION COUNTERS
SYSTEM
COMPRESSION
BOTTLE
AUTOSEAL
50PSI
0PSI
6PSI
0PSI