Omron ne-c801 instruction manual Recommend separation distance

Guidance and Manufacturer's Declaration

Electromagnetic immunity IEC60601-1-2

Immunity test	IEC 60601	Compliance	Electromagnetic environment –
	Test level	level	guidance
			Portable and mobile RF
			communications equipment should
			be used no closer to any part of
			the NE-C801 including cables,
			than the recommended separation
			distance calculated from the equation
			appropriate to the frequency of the
			transmitter.
			Recommend separation distance
			d = 1.2 √P
Conducted RF	3 V rms	3 V rms	d = 1.2 √P 80 MHz to 800 MHz
			d = 2.3 √P 800 MHz to 2.5 GHz
IEC 61000-4-6	150 kHz ~
			where P is the maximum output
	80 MHz
			power rating of the transmitter
Radiated RF	3 V/m	3 V/m	in watts (W) according to the
			transmitter manufacturer and d is the
IEC 61000-4-3	80 MHz to
			recommended separation distance in
	2.5 GHz
			meters (m).
			Field strengths from fixed RF
			transmitters as determined by an
			electromagnetic site survey,*2) should
			be less than the compliance level in
			each frequency range.*3)
			Interference may occur in the
			vicinity of equipment marked with he
			following symbol:

Note1: At 80 MHz and 800 MHz, the higher frequency range applies.

Note2: These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects, and people.

*2) Field strengths from fixed transmitters, such as base stations for radio (cellular/ cordless) telephones and land mobile 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 NE-C801 is used exceeds the applicable RF compliance level above, the NE-C801 should be observed to verify normal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating the NE-C801.

*3) Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.

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