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4. Use a clean dry filtered air jet to blow air in the opposite direction of
the sample flow through the microcell
helps to remove loose particles that may be stuck in the microcell.
5. Carefully insert a clearing shim in the outlet port of the sensor and
move the clearing shim toward the inlet port, through the microcell.
This action should push the blockage out of the microcell.
6. Install the sensor in the correct flow path.
7. Repeat steps
3
and 4.
If the problem still occurs, contact technical support.
Figure 9 Reverse flow installation
12 English
(Figure 5
on page 10). This
Troubleshooting
Error/Warning
Description
Sampler stalls
Viscosity is too high.
The sensor microcell is
clogged.
Bubbles in the sample or a
leak in the fluid path.
Baseline Hi Error
Sample is too dark. Sample
message
has a high particle
concentration.
Sensor microcell is clogged
or dirty.
High noise level, with
Sensor microcell is clogged
clean fluids, but no
or dirty.
sample flow
High noise level, with
The "Clean sample" is dirty.
flow only
Turbulence/bubbles occur
from debris clogged in the
sensor microcell flow
channel.
Bad distribution is
Turbulence/bubbles occur
exhibited with
from debris clogged in the
polystyrene spheres.
sensor microcell flow
channel.
The sensor microcell is
clogged or dirty.
Solution
Dilute the sample with a
miscible solvent (e.g.,
kerosene). Warm the
sample, but not more
than the sample flash
point and flammability
specifications.
Refer to
Clean a blocked
microcell
on page 11.
Tighten fittings or
replaced damaged
tubing or failed fittings.
Dilute the sample.
Refer to
Clean a blocked
microcell
on page 11.
Refer to
Clean a blocked
microcell
on page 11.
Make sure to do a
filtered blank sample.
Refer to
Clean a blocked
microcell
on page 11.
Refer to
Clean a blocked
microcell
on page 11.
Refer to
Clean a blocked
microcell
on page 11.
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