Eizo Nanao Corporation EX190W 用户手册

Power frequency 

(50/60Hz) mag-

netic field 

IEC 61000-4-8 

3.0 A/m

3.0 A/m

Power frequency mag-

netic fields should be 

at levels characteristic 

of a typical location in 

a typical commercial or 

hospital environment.

Voltage dips, short 

interruptions and 

voltage variations on 

power supply input 

lines IEC61000-4-11

<5% Ut (>95% dip in Ut) 

for 0.5 cycle

40% Ut (60% dip in Ut) 

for 5 cycles

70% Ut (30% dip in Ut) 

for 25 cycles

<5% Ut (>95% dip in Ut) 

for 5 sec.

<5% Ut (>95% dip in Ut) 

for 0.5 cycle

40% Ut (60% dip in Ut) 

for 5 cycles

70% Ut (30% dip in Ut) 

for 25 cycles

<5% Ut (>95% dip in Ut) 

for 5 sec.

Mains power quaility 

should be that of a typical 

commercial or hospital 

environment.  If the user 

of the EX190W image 

intensifier requires con-

tinued operation during 

power mains interrup-

tions, it is recommended 

that the EX190W image 

intensifier be powered 

from an uninterruptible 

power supply or a battery.

Note: Ut is the A.C. mains voltage prior to application of the test level.

Conducted RF

IEC61000-4-6

Radiated RF

IEC 61000-4-3

3 Vrms 

150 KHz to 80 MHz

3 V/m 

80MHz to 2.5 GHz

3 Vrms 

150 KHz to 80 MHz

3 V/m 

80MHz to 2.5 GHz

Portable and mobile RF communications 

equipment should be used no closer to any 

part of the 

EX190W, including cables, than 

the recommended separation distance 

calculated from the equation applicable to 

the frequency of the transmitter.
Recommended Separation Distance

0.15 MHz to 80 MHz

80 MHz to 800 MHz

800 MHz to 2.5 GHz

where P is the maximum oputput power 

rating of the transmitter in watts (

W) 

according to the transmitter manufacturer 

and d is the recommended separation 

distance in meters (

m).

Field strengths from fixed RF transmitters, 

as deter-mined by an electromagnetic 

site survey 

(a), should be less than the 

compliance level in each frequency range 

(b).Interferency may occur in the vicinity 

of equipment marked with the follwing 

symbol:

NOTE 1: At 80MHz and 800MHz, 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.

(a) Field 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, connot 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 EX190W is used exceeds the applicable RF com-

pliance level above, the EX190W should be observed to verify normal operation. If abnormal performance is observed, 

additional measures may be necessary, such as reorienting or relocating the EX190W.
(b) Over the frequency range 150kHz to 80MHz, field strengths should be less than [V1] V/m.

30    User’s Guide