
Troubleshooting and Maintenance
units, cellular phones, mobile two-way radios, electrical
appliances), it is possible that high levels of such interference
due to close proximity or strength of a source, may result in
disruption of performance of this device.
The NPB-295 is designed for use in environments in which the
pulse can be obscured by electromagnetic interference. During
such interference, measurements may seem inappropriate or the
monitor may not seem to operate correctly.
Disruption may be evidenced by erratic readings, cessation of
operation, or other incorrect functioning. If this occurs, the site
of use should be surveyed to determine the source of this
disruption, and the following actions taken to eliminate the
source:
• Turn equipment in the vicinity off and on to isolate the
offending equipment.
• Reorient or relocate the other receiving device.
• Increase the separation between the interfering equipment
and this equipment.
The NPB-295 generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with these
instructions, may cause harmful interference with other devices in
the vicinity.
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 when servicing the NPB-295.
When calling Mallinckrodt’s Technical Services Department or
your local Mallinckrodt representative, you may be asked to tell
the representative the software version number of your NPB-295.
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