ResMed VPAP III ST-A manual

Guidance and Manufacturer’s Declaration - Electromagnetic Emissions and Immunity

Guidance and manufacturer’s declaration – electromagnetic immunity

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.

Immunity test	IEC60601-1-2	Compliance level	Electromagnetic environment –guidance
	test level
Electrostatic	±6 kV contact	±6 kV contact	Floors should be wood, concrete or ceramic tile. If floors
discharge (ESD)	±8 kV air	±8 kV air	are covered with synthetic material, the relative humidity
IEC 61000-4-2			should be at least 30%.
Electrical fast	±2 kV for power	±2 kV	Mains power quality should be that of a typical commercial
transient/burst	supply lines		or hospital environment.
IEC 61000-4-4	±1 kV for input/	Not Applicable
	output lines
Surge	±1 kV differential	±1 kV differential	Mains power quality should be that of a typical commercial
IEC 61000-4-5	mode	mode	or hospital environment.
	±2 kV common	±2 kV common
	mode	mode
Voltage dips, short	<5% Ut	< 12 V	Mains power quality should be that of a typical commercial
interruptions and	(>95% dip in Ut)	(>95% dip in 240V)	or hospital environment.
voltage variations	for 0.5 cycle	for 0.5 cycle	If the user of the VPAP III ST-A with QuickNav requires
on power supply	40% Ut	96 V	continued operation during power mains interruptions, it is
input lines.	(60% dip in Ut)	(60% dip in 240 V)	recommended that the VPAP III ST-A with QuickNav be
IEC 61000-4-11	for 5 cycles	for 5 cycles	powered from an uninterruptible power source.
	70% Ut	168 V
	(30% dip in Ut)	(30% dip in 240 V)
	for 25 cycles	for 25 cycles
	<5% Ut	<12 V
	(>95% dip in Ut)	(>95% dip in 240 V)
	for 5 sec	for 5 sec
Power frequency	3 A/m	3 A/m	Power frequency magnetic fields should be at levels
(50/60 Hz)			characteristic of a typical location in a typical commercial or
magnetic field			hospital environment.
IEC 61000-4-8			Portable and mobile RF communications equipment should
			be used no closer to any part of the VPAP III ST-A with
			QuickNav, including cables, than the recommended
			separation distance calculated from the equation applicable
			to the frequency of the transmitter.
			Recommended separation distance
Conducted RF	3 Vrms	3 Vrms	d = 1.17 √P
IEC 61000-4-6	150 kHz to 80
	MHz
Radiated RF	10 V/m	10 V/m	d = 0.35 √P 80 MHz to 800 MHz
IEC 61000-4-3	80 MHz to 2.5		d = 0.70 √P 800 MHz to 2.5 GHz
	GHz		where P is the maximum output power rating of the
			transmitter in watts (W) according to the transmitter
			manufacturer and d is the recommended separation
			distance in metres (m).
			Field strengths from fixed RF transmitters, as determined
			by an electromagnetic site survey,a should be less than the
			compliance level in each frequency range.b
			Interference may occur in the vicinity of equipment marked
			with the following symbol:

NOTE 1: Ut is the AC mains voltage prior to application of the test level.

NOTE 2: At 80 MHz and 800 MHz, the higher frequency range applies.

NOTE 3: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and people.

aField strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey should be considered. If the measured field strength in the location in which the VPAP III ST-A with QuickNav is used exceeds the applicable RF compliance level above, the VPAP III ST-A with QuickNav should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating the VPAP III ST-A with QuickNav.

bOver the frequency range 150 kHz to 80 MHz, field strengths should be less than 10 V/m.

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