3 System description
3.4 Symbols and abbreviations
Sirona Dental Systems GmbH
Operating Instructions SIROLaser Xtend
18
63 18 351 D3576
D3576.201.01.05.02 11.2018
3.4.2
Abbreviations
NOHD
Nominal ocular
hazard distance
kV
Kilovolt
CW
Continuous Wave
VA
Volt-ampere
PF
Pulsed Frequency or
Chopped Mode
V
eff
Effective voltage
PP
Peak-Pulse
U
T
Threshold voltage
cont.
continuous
V/m
Volt per meter
ap-
prox.
approximately
mA
Milliampere
IR
Infrared diode
A/m
Ampere per meter
g
Gram
mW
Milliwatt
kg
Kilogram
W
Watt
µs
Microseconds
P
Power
ms
Milliseconds
P
max
Maximum power
s
Seconds
J
Joule
µm
Micrometer
RF
Radiofrequency
nm
Nanometer
Hz
Hertz
mm
Millimeter
kHz
Kilohertz
cm
Centimeter
MHz
Megahertz
m
Meter
GHz
Gigahertz
WxLxH
Width x length x
height
hPa
Hectopascal
DC
Direct current voltage
kpsi
Kilo-pound-force per
square inch
AC
Alternating current
voltage
db/
km
Decibels per kilometer
mV
Millivolt
°C
Degree Celsius
V
Volt
°F
Degree Fahrenheit