Kipp&Zonen SHP1 Pyrheliometer - Manual (Page 9)

Instruction Manual - SHP1 - Smart Pyrheliometer
9
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Throughout this manual the following symbols are used to indicate to the user important information.
General warning about conditions, other than those caused by high voltage electricity, which may result in physical
injury and/or damage to the equipment or cause the equipment to not operate correctly.
Note Useful information for the user
1.1 Product overview
According to International Standard ISO 9060:1990 and the World Meteorological Organization (WMO) a pyrheliometer is the
designated type of instrument for the measurement of direct solar radiation. The SHP1 pyrheliometer is compliant with the
“First Class” class specified by the international standards.
This manual, together with the instruction sheet, provides information related to the installation, maintenance, calibration,
product specifications and applications of the SHP1 pyrheliometer.
If any questions should remain, please contact your local Kipp & Zonen representative or e-mail the Kipp & Zonen customer and
product support department at:
[email protected]
Please go to www.kippzonen.com for information about other Kipp & Zonen products, or to check for any updates to this manual
or software.
1.1.1 The SHP1 pyrheliometer
SHP1 pyrheliometer is a high quality radiometer designed for measuring direct short-wave irradiance (radiant flux, W/m²) which
results from the radiant flux from a solid angle of 5 degrees.
SHP1 pyrheliometer features internal digital signal processing and interfaces optimised for industrial data acquisition and control
systems. Kipp & Zonen has developed a smart interface that features RS-485 Modbus® data communication for connection to
programmable logic controllers (PLC’s), inverters, digital control equipment and the latest generation of data loggers. Amplified
Voltage or Current outputs are also included for devices that have high-level analogue inputs or current loop interfaces.
The SHP1 is available in two versions. The SHP1-V has an analogue voltage output of 0 to 1 V, the SHP1-A has an analogue current
output of 4 to 20 mA. Both have a 2-wire RS-485 interface with Modbus® (RTU) protocol. Both versions have minimised power
consumption and are protected against short circuit and reversed polarity. The digital signal processing provides faster response
times and, with an integrated temperature sensor, individual corrections for the temperature dependence of the detector are made.
To achieve the required spectral characteristics SHP1 uses a quartz window and thermopile detector. The waterproof connectors
have gold-plated contacts.
The pyrheliometer is normally delivered with a waterproof plug pre-wired to a high quality signal cable, typically this is 10 m
long but other lengths are available. The instruments can also be ordered with a plug only, for the user to fit their own cable.
1. Introduction
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1.1.2 International Standard
For the SHP1 Second Class pyrheliometer ISO standard ISO 9060 applies.
Fully compliant with all ISO 9060:1990 specification criteria for an ISO Second Class pyrheliometer, the SHP1 features a
thermocouple sensing element. An integrated temperature sensor with active and individual measured temperature compensation
is included for improved temperature dependence of sensitivity.
1.2 Key parts of the SHP1 pyrheliometer