Kipp&Zonen LAS MkII Scintillometer - Manual (Page 66)

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Instruction Manual - LAS MkII Scintillometer
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Note Kipp & Zonen reserves the right to make changes to specifications without prior notice.
7.1 Specifications of LAS MkII transmitter
Parameter Value
Operating temperature -20 °C to +50 °C
Humidity 0 to 100 % RH, IP 65
Voltage 12 VDC nominal (9.6 to 18 VDC)
Power 3 W maximum with heater off
51 W maximum with heater on, typical 23 W
Window heater Self-regulating at approx. +55 °C
Surge protection For transmitter power, but not for heater
Centre wavelength of optical filter for photodiode detector 850 nm
Fresnel lens diameter and focal length 152 mm / 152 mm
Scintillation signal bandwidth 0.2 to 400 Hz
Typical value signal 1 ( U
C
n
2
, log C
n
2 signal) 0 to 2 V
Typical value signal 2 (6.5 - 7 kHz carrier) 0 to 1 V, 6.5 to 7 kHz, 0.5 duty cycle
Typical value signal 3 ( U
DEMOD
, signal strength I) 0 to 2 V
C
n
2 turbulent range 10 -17 to 10 -12 m -2/3
Noise level of electronics < 10 -17 m -2/3
Length 266 mm *
Width 229 mm *
Height 297 mm *
Weight 8.5 kg *
* Including pan and tilt assembly, but excluding sun shield or telescope
Parameter Value for LAS MkII Value with restrictors
Nominal aperture 150 mm 100 mm
Minimum path length 250 m 100 m
Maximum path length (depends on atmospheric conditions) 4.5 km 1 km
Minimum height 1.5 m 1.5 m
Maximum height for C
n
2 (or turbulence) measurements no operational restriction no operational restriction
Maximum height for H measurements Constant Flux Layer Approx. 100 m Approx. 100 m
7.2 Specifications of LAS MkII receiver
7.3 Specifications of LAS MkII scintillometer system