Canon TX-20 Full Auto Tonometer User Manual

Page 92

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92

Appendix

Guidance and Manufacturer’s Declaration for Electromagnetic Immunity

The TX-20 is intended for use in the electromagnetic environment specified below.
The customer or the user of the TX-20 should assure that it is used in such an environment.

Immunity Test

IEC 60601

Test Level

Compliance Level

Electromagnetic Environment – Guidance

Electrostatic discharge
(ESD)
EN IEC 61000-4-2

±(2, 4, 6) kV contact

±(2, 4, 8) kV air

±(2, 4, 6) kV contact

±(2, 4, 8) kV air

Floors should be wood, concrete or ceramic
tile.
If floors are covered with synthetic material,
the relative humidity should be at least 30%.

Electrical fast transient/
burst
EN IEC 61000-4-4

±2 kV for power supply
lines

±1 kV for input/output
lines

±2 kV for power supply
lines

±1 kV for input/output
lines

Mains power quality should be that of a
typical commercial or hospital environment.

Surge
EN IEC 61000-4-5

±1 kV differential mode

±2 kV common mode

±1 kV differential mode

±2 kV common mode

Mains power quality should be that of a
typical commercial or hospital environment.

Voltage dips, short
interruptions and
voltage variations on
power supply input
lines
EN IEC 61000-4-11

<5% U

T

(>95% dip in

U

T

) for 0.5 cycles

40% U

T

(60% dip in U

T

)

for 5 cycles

70% U

T

(30% dip in U

T

)

for 25 cycles

<5% U

T

(>95% dip in

U

T

) for 5 sec

<5% U

T

(>95% dip in

U

T

) for 0.5 cycles

40% U

T

(60% dip in U

T

)

for 5 cycles

70% U

T

(30% dip in U

T

)

for 25 cycles

<5% U

T

(>95% dip in

U

T

) for 5 sec

Mains power quality should be that of a
typical commercial or hospital environment.
If the user of the TX-20 requires continued
operation during power mains interruptions, it
is recommended that the TX-20 be powered
from an uninterruptible power supply.

Power frequency
(50/60Hz) magnetic
field
EN IEC 61000-4-8

3 A/m

3 A/m

Power frequency magnetic fields should be
at levels characteristic of a typical location in
a typical commercial or hospital environment.

NOTE: U

T

is the AC mains voltage prior to application of the test level.

L-IE-5191C_TX-20.indb 92

2013/07/18 13:10:42

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