Kipp & Zonen RaZON+, Instruction Manual

Page: 43 / 72

43
5. RaZON
+
PH1 Pyrheliometer
The RaZON
+
standard pyrheliometer is the PH1. This pyrheliometer has a quartz diffusor, fast detector and removable collimation
tube. The reason the detector part and the tube can be separated it to check whether the detector is clean. The anti-soiling design
of the collimation tube keeps dust and dirt from the detector. This significantly increases the cleaning interval required for the PH1.
Communication is done via its smart interface with Modbus® RTU over RS-485.
Dimensions PH1
5.1 Electrical connection PR1 and PH1
Both the 8 pin connector and the RS-485 Modbus® communication of the PR1 and PH1 are identical to the SMP pyranometers. Please
refer to the SMP manual (section 2.9 – 2.94) for details if you want to connect the PR1 and PH1 as separate instruments.
5.2 Internal desiccant
To keep the detector and electronics dry and to prevent condensation forming inside the instruments with temperature changes a
desiccant is used to absorb humidity. For the PR1 and PH1 this desiccant is internal and lasts for 5 year. The desiccant will be
exchanged when the instruments comes back to a Kipp & Zonen service location for re-calibration.
Ø
52 mm
Ø 38 mm
50 mm
244 mm
Spectral range
(50% points)
Response time
(95%)
Response time
(63%)
Zero offsets
(b)
temperature change
(5 K/h)
Non-linearity
(100 to 1000W/m²)
Field of view
Measurement range
Operating temperature range
Ingress Protection (IP) rating
310 to 2700 nm
< 0.2 s
Classification to ISO 9060:1990 Second Class
< 0.1 s
1 W/m
2
< 0.3%
Temperature response
< 1 %
(-20°C to +50°C)
5° ±0.2°
Slope angle 1° ±0.2°
0 to 1500W/m²
-40°C to +80°C
67