Maintenance
Pi20
Rev. B 09/2011
49
8
It is recommended to carry out periodic temperature calibrations at least once a year to maintain
product quality and ensure the reliability of temperature indications.
There are no user-serviceable parts in the camera. Periodically inspect and insure that all camera
mounting screws remain tightly fastened.
If you need application assistance, calibration, repair, and solutions to specific problems, our customer
service representatives are always at your disposal. In many cases, problems can be solved over the
telephone. If you need to return equipment to us, please contact our Service Department before doing
so. You will find their contact information on the Contact page of this manual.
8.1
Troubleshooting
Symptom
Probable cause
Remedy
Power does not turn on.
Power switch is not on.
Turn on the Power Switch.
AC adapter is not connected.
Connect AC adapter.
Measuring temperature is in error.
(out of the specifications)
Wrong emissivity is set
Set correct emissivity.
Ambient reflection calibration is not made
Execute ambient reflection calibration
Focus is not met
Adjust focus correctly.
Noise problem
High voltage source is nearby.
Take a distance from the high voltage source.
Connectors or cable touches to any noise
source.
Turn off the power and take a distance from the
noise source.
8.2
Cleaning the Lens
The camera’s lens must be kept as clean as possible. Any foreign matter on the lens will affect the
accuracy of the measurements. Take care when cleaning the lens, as it can easily be scratched. Please
observe the following guidelines for cleaning the lens:
Lightly blow off loose particles!
Wipe off the dust lightly, using a chamois cloth!
For removing oil film, moisten a soft cotton swab (or boiled and dried gauze) with a little non-
aqueous alcohol (ethanol) and wipe it lightly!
Absolutely avoid using organic solvents such as thinner, benzene or chemicals for
cleaning. These will cause discoloration!
Directly wiping the lens with a coarse cloth may leave scratches!
