Kipp&Zonen CVF4 Ventilation Unit - Manual (Page 21)

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Instruction Manual - CVF4
5. Specification
355 mm 230 mm
154.5 mm 129
.5 mm
Specifications
Compatible instruments
Compliance with standards
Power consumption ventilator
(unheated)
Power consumption heater (selectable)
Operational voltage range
Operational temperature range
-40°C to +70°C
Storage temperature range
Humidity range
Ingress Protection (IP) rating
Note: The performance specifications quoted are worst-case and/or maximum values
CMP 6, CMP10, CMP 11, SMP11, CMP 21, CMP 22, CGR 4, CUV 5
CMP 3, SMP3 and CGR 3 with reduced specifications
Older type single radiometers: CM, CG and CUV will also fit
ISO/TR 9901, BSRN operations manual
5 W continuously at 12 VDC
5.5 W at 12 VDC
8 to 13.5 V
-40°C to +70°C
0 to 100% non-condensing
Tacho output Two tacho pulses (5 Volt) per revolution, 8800 pulses per minute (nominal), 146 Hz
Optional cable lengths 25 m and 50 m
Zero offset A reduction 50% reduction for CMP’s
54
Standard cable length 10 m
Increase of air temperature 0.25 K at 0 W heating
1 K at 5.5 W heating
Offset by heating -2 W/m 2 at 5.5 W heating (CMP 11), no offset for CGR pyrgeometers
Cable resistance 0.16 Ω/m (2 x 0.08 Ω/m)
Voltage drop at maximum heating 0.075 V/m
Size 0.23 m diameter, length 0.355 m
Advantages Easier filter access
No build-up of snow under ventilator (hangs over mounting platform/located higher)
Easy removal of cover
Because of radial ventilator, 5x better circulation of air over the top of the dome
Lower power consumption for both ventilator and heater with improved performance
Wide operating voltage range
High quality cable with very low voltage drop
Kipp & Zonen reserves the right to make changes to specifications and other product documentation without prior notice.
5.1 Optical and electrical
5.2 Dimensions and weight
Weight without cable: 1.6 kg