1 cnr4 specifications, 2 pyranometer specifications, Cnr4 specifications – Campbell Scientific CNR4 Net Radiometer User Manual

Page 18: Pyranometer specifications

CNR4 Net Radiometer

6.1 CNR4 Specifications

Sensor sensitivities:

Four probes with unique sensitivity
values. Please refer to the calibration
sheets or label on the bottom of the
sensor for the sensitivity values.

Operating temperature:

–40 to +80°C (–40 to 176°F)

Operating humidity:

0 to 100% RH

Bubble level sensitivity:

< 0.5°

Sensor type:

Thermopile

Receiver paint:

Carbon Black

Desiccant:

Silica gel (replaceable)

Housing material:

Anodized aluminum body

Shock/vibration:

IEC 721-3-2-2m2

CE:

Complies with EC guideline
89/336/EEC 73/23/EEC

Environmental protection:

IP 67

Requirements for data acquisition

Radiation components:

4 differential or 4 single-ended analog
channels

Thermistor:

1 voltage excitation and 1 single-
ended analog channel

Pt-100 temperature:

1 current excitation and 1 differential
analog channel.

Cable length:

User defined

Weight

Sensor:

0.85 kg (1.89 lb) without cables

Heater/ventilator, CNF4
(optional):

0.50 kg (1.11 lb) without cables

Mounting rod:

34.7 cm (13.67 in) length
1.6 cm (0.63 in) diameter

6.2 Pyranometer Specifications

* indicates ISO specifications.

Spectral range:

305 to 2800 nm (50% points)

Sensitivity:

10 to 20 µV/W/m

Response time*:

< 18 seconds (95% response)

Non-linearity*:

< 1% (0 to 1000 W m

-2

irradiance)

Non-stability*:

< 1%

Temperature dependence of
sensitivity*:

< 4% (–10° to +40°C)

Tilt response*:

< 1% at any angle with 1000 W/m