9
1 9 2 5 R o u t e 5 1 , J e f f e r s o n H i l l s , P A ,
1 5 0 2 5
8 0 0 . 2 4 5 . 1 6 5 6
Is the KJL-6000SS Sensor good?
1. Verify 18-20ohm resistance between pins 3
and 5
2. Verify 18-20 ohm resistance between pins
3 and 7
If zero ohms or open circuit is read, the tube
will need to be replaced
When I first turn the unit on, it starts near ATM,
then slowly moves down
This is normal operation due to the initial heating
of the filament
When I switch between sensors in the KJL-
205ABM3X, the needle starts high, then settles in
to vacuum reading.
This is normal operation due to the initial heating
of the filament.
Section 9: Servicing and Maintenance
Gauge tube servicing
In many cases, a gauge tube may become fouled with oil or other foreign matter. It is often possible
to restore the functionality of contaminated probes with cleaning. If the contaminant is known, the
tube should be filled with a fluid that is known to be a solvent to that contaminant. As an example,
ether is often effective in removing residues of some oils. Commercial carburetor cleaners are very
powerful solvents and are highly effective against some contaminants.
After cleaning with solvents, the gauge tube should be completely dried or flushed with a volatile
solvent to assure that it is dry prior to reinstalling it.
If this is not done, contamination of the
system may result.
Maintenance
Your vacuum instrument should give you many years of trouble-free service. There are no regularly
scheduled maintenance intervals. If consistent accuracy is required, it is recommended that the
gauge, tube, cable and power supply be returned for a
yearly calibration check. For more
information, please contact the Kurt J. Lesker Company.
3
5
8
7
