
Troubleshooting and Maintenance
If assistance is required, contact Mallinckrodt’s Technical
Services Department or your local Mallinckrodt representative.
OBTAINING TECHNICAL ASSISTANCE
For technical information and assistance, or to order parts or a
service manual, contact Mallinckrodt’s Technical Services
Department or your local Mallinckrodt representative. The
service manual includes block diagrams and a parts list required
by qualified personnel for servicing the NPB-290.
When calling Mallinckrodt’s Technical Services Department or
your local Mallinckrodt representative, you may be asked to tell
the representative the software version numbers of your
NPB-290.
The software versions appear on the monitor display during the
power-on self-test. Write the numbers down and have them
available whenever requesting technical assistance.
Returning The NPB-290
Contact Mallinckrodt’s Technical Services Department or your
local Mallinckrodt representative for shipping instructions
including a Returned Goods Authorization (RGA) number. It is
not necessary to return the sensor. Pack the NPB-290 in its
original shipping carton. If the original carton is not available,
use a suitable carton with appropriate packing material to protect
it during shipping.
Return the NPB-290 by any shipping method that provides proof
of delivery.
MAINTENANCE
Service
WARNING: The cover should be removed only by qualified
service personnel. There are no user-serviceable parts inside.
The NPB-290 requires no calibration.
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