EMC Information
NPT4™ has been tested for compliance with EMC requirements. The guidelines in this section will help ensure
the equipment meets the requirements of the standard.
WARNING: Use of this equipment adjacent to or stacked with other equipment should be avoided because it
could result in improper operation. If such use is necessary, this equipment and the other equipment should
be observed to verify that they are operating normally.
WARNING: Use of accessories, transducers, and cables other than those specified or provided by the
manufacturer of this equipment could result in increased electromagnetic emissions or decreased
electromagnetic immunity of this equipment and result in improper operation.
WARNING: Portable RF communications equipment (including peripherals such as antenna cables and
external antennas) should be used no closer than 30 cm (12 in) to any part of the NPT4™ control unit,
including cables specified by the manufacturer. Otherwise, degradation of the performance of this equipment
could result.
WARNING: During operation, cell phone with a maximum output power of 2 watts shall be kept at least 3.3m
distance from unit.
CAUTION: This device conforms to all requirements specified by the standards for electromagnetic
compatibility (EMC). Problems are not likely to be encountered by the user due to inadequate electromagnetic
immunity. While the standards are based on expected environments of use, electromagnetic immunity is
always relative. If unusual, intermittent device behavior is encountered and can be associated with cell
phones, radio or TV transmitters, or electro-medical equipment, electromagnetic interference could be the
cause. If such interference occurs, the interfering equipment should be moved away from this device.
Guidance and Manufacturer’s Declaration – Emissions
NPT4™ is intended for use in the electromagnetic environment specified below. The customer or user of NPT4™
should ensure that it is used in such an environment.
Emissions Test
Compliance
Electromagnetic Environment Guidance
RF Emissions CISPR 11
Group 1
NPT4™ uses RF energy only for its internal functions. Therefore, its
RF emissions are very low and not likely to cause any interference in
nearby electronic equipment.
RF Emissions CISPR 11
Class B
NOTE:
The higher IMMUNITY TEST LEVELS specified for the HOME
HEALTH CARE ENVIRONMENT are necessary due to the closer
distances to certain electromagnetic sources than found in the
professional healthcare facility environment. Examples include
PORTABLE RF communications equipment such as mobile phones
and amateur radio equipment.
Harmonic Emissions
IEC 61000-3-2
Class B
Voltage Fluctuations and
Flicker
IEC 61000-3-3
Complies
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NPT4 User Manual (8123)