Hach DR/820 Instrument Manual page 66

CERTIFICATION, continued
FCC PART 15, Class "A" Limits:
Supporting test records by Intellistor O.A.T.S., certified
compliance by Hach Company.
This device complies with Part 15 of the FCC Rules. Operation is
subject to the following two conditions:
(1) This device may not cause harmful interference, and (2) this
device must accept any interference received, including
interference that may cause undesired operation.
Changes or modifications to this unit not expressly approved by
the
party responsible for compliance could void the user's authority
to
operate the equipment.
This equipment has been tested and found to comply with the
limits for a Class A digital device, pursuant to Part 15 of the FCC
Rules. These limits are designed to provide reasonable protection
against harmful interference when the equipment is operated in a
commercial environment. This equipment generates, uses, and
can radiate radio frequency energy and, if not installed and used
in accordance with the instruction manual, may cause harmful
interference to radio communications. Operation of this
equipment in a residential area is likely to cause harmful
interference, in which case the user will be required to correct the
interference at his own expense. The following techniques of
reducing the interference problems are applied easily.
1. Remove power from the Colorimeter by removing one of its
batteries to verify that it is or is not the source of the
interference.
2. Move the Colorimeter away from the device receiving the
interference.
3. Reposition the receiving antenna for the device receiving
the interference.
4. Try combinations of the above.
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