27 Appendices
98 / 106 Instruction Manual Keratograph 5M (G/77000/XXXX/EN – Rev05)
Surges per IEC 6100-4-5 ± 2 kV line(s) to
earth
± 2 kV
Common mode
voltage
± 1 kV
± 2 kV
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
IEC 61000-4-11
0% U
τ
; 1/2 period
at 0, 45, 90, 135,
180, 225, 270 and
315 degree
0% U
τ
; 1 period
and
70% U
τ
; 25/30
periods
Single-phase: at
0 degree
0% U
τ
; 250/300
periods
0% U
τ
; 1/2 period
at 0, 45, 90, 135,
180, 225, 270 and
315 degree
0% U
τ
; 1 period
and
70% U
τ
; 25/30
periods
Single-phase: at
0 degree
0% U
τ
; 250/300
periods
Mains power quality should be
that of a typical commercial or
hospital environment.
If the user of the
Keratograph 5M requires con-
tinued operation during power
mains interruptions, it is recom-
mended that the
Keratograph 5M be powered
from an uninterruptible power
supply or battery.
Note: U
τ
is the a.c. mains voltage prior to application of the test level.
To Next Page
Loading...
