ResMed VPAP III ST-A manual Separation distance according to frequency of transmitter m

Guidance and manufacturer’s declaration – electromagnetic emissions

The VPAP III ST-A with QuickNav is intended for use in the electromagnetic environment specified below. The customer or the user of the VPAP III ST-A with QuickNav should assure that it is used in such an environment.

Emissions test	Compliance	Electromagnetic environment - guidance
RF emissions CISPR11	Group 1	The VPAP III ST-A with QuickNav uses RF energy
		only for its internal function. Therefore, its RF
		emissions are very low and are not likely to
		cause any interference in nearby electronic
		equipment.
RF emissions CISPR 11	Class B	The VPAP III ST-A with QuickNav is suitable for
		use in all establishments, including domestic
Harmonic Emissions	Class A
		establishments and those directly connected to
IEC 61000-3-2
		the public low-voltage network that supplies
Voltage Fluctuations/Flicker Emissions	Complies	buildings used for domestic purposes.
IEC 61000-3-3

Medical Electrical Equipment needs special precautions regarding EMC and needs to be installed and put into service according to EMC information provided in this document.

Warnings: The VPAP III ST-A with QuickNav should not be used adjacent to or stacked with other equipment.

If adjacent or stacked use is necessary, the VPAP III ST-A with QuickNav should be observed to verify normal operation in the configuration in which it will be used.

The use of accessories (eg, humidifiers) other than those specified in this manual is not recommended. They may result in increased emissions or decreased immunity of the VPAP III ST-A with QuickNav.

Recommended separation distances between portable and mobile RF communications equipment and the VPAP III ST- A with QuickNav

The VPAP III ST-A with QuickNav is intended for use in an environment in which radiated RF disturbances are controlled. The customer or the user of the VPAP III ST-A with QuickNav can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the VPAP III ST-A with QuickNav as recommended below, according to the maximum output power of the communications equipment.

Separation distance according to frequency of transmitter m

Rated maximum output	150 kHz to 80 MHz	80 MHz to 800 MHz	800 MHz to 2.5 GHz
power of transmitter	d = 1.17 √P	d = 0.35 √P	d = 0.7 √P
W
0.01	0.17	0.04	0.07
0.1	0.37	0.11	0.22
1	1.17	0.35	0.7
10	3.69	1.11	2.21
100	11.70	3.50	7.0

For transmitters rated at a maximum output power not listed above, the recommended separation distance d in metres (m) can be determined using the equation applicable to the frequency of the transmitter, where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer.

NOTE 1: At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.

NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and people.

English

Guidance and Manufacturer’s Declaration - Electromagnetic Emissions and Immunity 21