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2628 XH Delft The Netherlands +31 15 2755 210 solar-info@otthydromet.com www.otthydromet.com All rights reserved. All content is the intellectual property of OTT HydroMet. Reprinting, duplication and translation (even as excerpts) are only permitted with the prior written consent of OTT HydroMet. Subject to technical change.
Table of contents Scope of supply Order numbers and variant code Product variants Accessories and spare parts About this manual General signs and symbols Explanation of warnings General safety instructions Intended use Potential misuse Personnel qualification Operator obligations Personnel obligations Risk of burns due to hot surfaces Correct handling Certification...
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Maintenance schedule Troubleshooting 10.1 Error elimination Repair 11.1 Customer support Notes on disposing of old devices Technical data 13.1 Optical and electrical data 13.2 Dimensions and weight <4>...
1 Scope of supply The following items are included with delivery: – Pyranometer – Pyranometer fixing kit – Instruction sheet – Test reports – Mounting rod (optional) <5>...
3 About this manual 3.1 General signs and symbols The signs and symbols used in the operational manual have the following meaning: Practical tip This symbol indicates important and useful information. Action ü Prerequisite that must be met before performing an action. 4 Step 1 ð...
The equipment described in this manual must be installed, operated, maintained and repaired by qualified personnel only. 4 Obtain training from OTT HydroMet if necessary. 4.4 Operator obligations The installer is responsible for observing the safety regulations. Unqualified personnel working on the product can cause risks that could lead to serious injury.
4 Do not change or convert the product in any way. 4 Do not perform any repairs yourself. 4 Get OTT HydroMet to examine and repair any defects. 4 Ensure that the product is correctly disposed of. Do not dispose of it in household waste.
5 Product description 5.1 Design and function The pyranometer measures the solar energy received from the entire hemisphere and monitors the efficiency of photovoltaic solar energy module systems. SP Lite2 uses a photodiode detector, which creates a voltage output that is proportional to the incoming radiation. The instrument includes a yellow cable, adjustment screws and an integrated bubble level to ensure accurate installation.
6 Transport, storage, and unpacking 6.1 Transport 4 Transport the product always in its original packaging. 4 Ensure that the product is not mechanically stressed during transport. 6.2 Storage 4 Store within specified temperature ranges. 4 Store in dry area. 4 Store in original box where possible.
7 Installation 7.1 Mechanical installation 7.1.1 Required tools and aids The following tools and aids are required: – Allen key, 4 mm – wrench, 8 mm 7.1.2 Choosing a site There should be no obstructions to the field of vision above the instrument’s sensor element. If this is not possible, the location of the instrument must be chosen to ensure that obstacles do not rise by more than 5 degrees above the azimuth range between sunrise after the shortest night and sunset on the longest day.
7.1.3 Mounting instrument 46 mm 2x M5 x 40 mm screws 2x Ø 6 mm 4x M5 washer 2x M5 nut 3x M5 x 25 mm screws 4 Position the instrument on a solid surface. 4 Ensure that the instrument is grounded. 4 Ensure that the instrument is not in the shade. 4 Point the cable plug towards the nearest pole to reduce the UV exposure on the cable.
7.1.4 Installation for measuring albedo An albedometer consists of two identical pyranometers that measure the incident radiation and the radiation reflected by the surface below. Albedo is the ratio of the two radiation measurements and varies from 0 (dark) to 1 (bright). 1.5 m 1.5 m Mounting rod...
8 Commissioning 8.1 Checking the instrument 4 To check the signals of the instrumnet, place it in the sun, and use a multimeter with mV scale and see if a positive voltage is measured. ð A voltage between 10 – 150 mV is expected. 4 Divide this voltage by the instruments sensitivity to obtain the irradiance.
4 Check that the SP Lite2 is standing horizontally or at Operator the correct angle. Adjust the instrument if required. Annually 4 Check all cables for damage. Operator 4 Check fastenings and basic supports. 2 years 4 Have a recalibration performed. OTT HydroMet <16>...
4 Check the diffuser for contamination. Carry out maintenance work as required. 4 Check the last calibration date to see if re-calibration is required. 4 Check that the leveling is correct. 4 Report any malfunctions or damage to the representative of OTT HydroMet. <17>...
11 Repair 11.1 Customer support 4 Have repairs carried out by OTT HydroMet service personnel. 4 Only carry out repairs yourself, if you have first consulted OTT HydroMet. 4 Contact your local representative: www.otthydromet.com/en/contact-us 4 Include the following information: – instrument model –...
In accordance with the German Electrical and Electronic Equipment Act (ElektroG; national implementation of EU Directive 2012/19/EU), OTT HydroMet takes back old devices in the Member States of the European Union and disposes of them in the proper manner. The devices that this concerns are labeled with the following symbol: 4 For further information on the take-back procedure contact OTT HydroMet: OTT HydroMet B.V.
13 Technical data 13.1 Optical and electrical data Specification Value Spectral range 400 to 1100nm Sensitivity 60 to 100 µV/W/m Sensitivity (10 µV/W/m version) 10 ±0.5 µV/W/m Impedance 50 Ω Impedance (10 µV/W/m version) 10 Ω < Expected output range (0 to 1500 W/m 0 to 150 mV Expected output range (10 µV/W/m version) 0 to 15 mV...
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