Table 7. General Troubleshooting Issues And Suggested Actions - REPLIGEN CTech SoloVPE PLUS User Manual

CTech™ SoloVPE® PLUS System
9. General Troubleshooting
This chapter lists possible unexpected performance of the system, likely causes of these conditions, and recommended actions to
resolve the issue.

Table 7. General troubleshooting issues and suggested actions

Issue
Cary 60 Indicator Lamp Not
Lit
Low Transmission (Failing
Quick Check Test)
SoloVPE PLUS Not Moving
Cary Displaying Red LED
Upon Start-Up
Hockey Stick Shape in Data
Plot
Inconsistent Measurement
Reading
Plateau in Section Curve
Upper End (Similar Abs
Values at Long Pathlengths)
DOC0362 eRev. 1.0 [Publication Date]
Cause
• The Cary 60 instrument is powered
off.
•
Power is not reaching the Cary 60.
•
The Cary 60 is not plugged into a
power outlet.
•
Possible contamination in the optical
path reduces the amount of light
available to make measurements.
• Check the connection on the back of
the SoloVPE PLUS.
•
Check the connection of the cable
with the power brick.
•
Check the connection to the outlet.
•
Two-or-more OPC Core windows are
open. Only one can be connected to
the instrument at one time.
•
Cary 60 is not properly calibrated.
•
Light is not being read by the sample
and/or reference detector.
• The Fibrette Optical Component is
bending in the sample.
•
Zero position has been changed or
modified.
•
Broken pieces of Fibrette Optical
Component are trapped in the Quick
Set Coupler.
•
Cary 60 is not properly calibrated.
•
Dirty vessel and/or Fibrette Optical
Component.
•
The optical pathway is obstructed.
•
Insufficient sample volume to cover
pathlength range specified.
• Fibrette Optical Component came out
of the sample and resulted in a
plateau in the pathlength cross-
sectional curve.
Action
• Confirm if instrument power is turned on. If not, press the
power button located in the front of the unit to turn it on.
•
Check to make sure the power cable is securely connected to
the Cary 60 and power outlet.
•
Check transmission using the Quick Check Test to verify the
functionality of the system.
• Systematically cleaning the Delivery Fiber and SoloVPE PLUS
Detector Window surfaces will help clear the optical path.
• Check transmission using the Quick Check Test to verify the
functionality of the system.
•
Systematically cleaning the Delivery Fiber and SoloVPE PLUS
Detector Window surfaces will help clear the optical path.
•
Power down the Cary 60 and restart the instrument.
•
Make sure Cary 60 is not plugged into an intermittent power
supply.
• Check Zero Position with a large, empty vessel. Check
Fibrette Optical Component for tightness by rotating the
vessel in the holder.
•
Inspect Fibrette Coupler for broken pieces of Fibrette Optical
Component, and clean or replace Fibrette Coupler if needed.
Retest with a new aliquot to see if the hockey stick is
present.
•
Restart the Cary 60 for self-calibration by turning the
instrument off and then on.
•
Clean the Delivery Fiber.
•
Clean Fibrette Optical Component and sample vessel, or use
a new Fibrette Optical Component and vessel.
•
Make sure the optical path is clean and that dust particles or
debris are not present in sample compartment.
•
Add more sample volume to the sample vessel and repeat
the test. Refer to Appendix 1: Sample Volume Help Sheet for
additional guidance.
User Guide
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