ISA - UV/Vis Spectrometer System

Functions & Features

Customized Calibration

The composition of water not only differs from application to application, for example, the optical behaviour of water from two lakes in the same region can differ significantly. This behaviour can be attributed to the different organic composition, which is also responsible for absorption in water. Therefore it is necessary to perform a calibration specific for each water. After installation of the UV/Vis spectrometer, reference samples are taken and analyzed in the laboratory. Based on the absorption spectra determined by the spectrometer and the laboratory values, GO Systemelektonik calculates a calibration specifically optimized for your water composition.

Calibration Monitoring (SQI)

The Calibration Monitoring feature provides a real-time evaluation of the trustworthiness of measurement readings by means of a Spectral Quality Index (SQI). The SQI indicates the validity of the calibration. Thereby it is possible to determine how well the calibration fits to the current water matrix and to automatically select the most suitable calibration at all times. With this unique feature it is possible to obtain an on-line quality detection of the spectrometer results and ensure the proper operability of the system.

Adjustable Optical Path Length

The measurement head of the ISA - UV/Vis Spectrometer allows for an infinitely variable adjustment of the optical path length between 0.5 to 20 mm, which is a unique feature of the ISA Spectrometer. The path lengths can be changed directly in the field by using a simple screwdriver. The adjustment of the measuring path is an imperatively necessary feature for optimal adaptation to the local specific water matrix. In addition, the possibility of opening the measuring gap eases the ability to perform a manual cleaning.

External Electronics

All electronic components of the ISA spectrometer are not built into the sensor head, but are integrated in an external module or the corresponding BlueBox. This allows electrical components to be serviced in the field and replaced if necessary without the need to send the system in for repair.

Deployable up to +110 °C

The ISA measuring head features an extremely high-temperature durability of +80 °C (for short periods, up to +110 °C). This substantially extends the range of applications, particularly for industrial implementations. The temperature insensitivity of the ISA is an advantage for cleaning and sterilization of the probe head. Since there are no electronic components in the measuring head, temperature influences (drift) on the electronics, UV/Vis lamp, and Spectrometer unit are eliminated.

ATEX Certified

The measurement head of the ISA - UV/Vis Spectrometer system is ATEX certified, which allows for the installation in potentially explosive atmospheres. The measurement head fulfils ATEX class III as standard. Optionally, ATEX class II is available.

Automatic Cleaning

The ISA - UV/Vis Spectrometers feature an integrated and automatically controlled pressurised air flushing for the cleaning of the optical windows. No mechanical parts protrude from the measuring head, which eases the installation in armatures and prevents the settling of dirt particles on the optical windows. With the pressurised air flushing the service expenditure can drastically be reduced.

No Consumables

The UV/Vis Spectrometers do not require any reagents or other consumables and can be operated maintenance-free except for necessary cleaning on location (dependent on the installation). The calculated life-time of the flashbulb is > 10 years. In the case of a defect, service on location is possible because all electronic components are external to the submersible probe.

Monitoring Function

The UV/Vis Spectrometer Systems are capable of simultaneously detecting multiple parameters. With the corresponding calibration formulas, it is possible to calculate up to 99 different parameters. This is a standard function of GO Systemelektronik's UV/Vis Spectrometer Systems.

Intelligent Event Handling

With the help of the flexible communication possibilities of the BlueBox-System it is possible to transmit events locally or via telephone, network, mobile network, and satellite, if required through redundant paths, in a swift and reliable manner. All usual services like SMS, email, FAX and network protocols are available for the transmission. Response times for alarms and events can thereby be minimized and the reliability of operation can be optimized.

Remote Access & Control

A connection via internet or mobile networks facilitates the transmission of measurement data and results at any time and allows for remote access and control of the system. Thereby it is possible to change settings or transmit calibrations remotely.

Technical data Controller

Controller included in delivery: BlueBox TS

Touch Panel, LCD colour display with 480x272 pixels and 65,536 colours
Aluminium housing (LxWxH): 280 mm x 90 mm x 170 mm, IP 65
Colour: blue (RAL 5010, powder-coated)
Weight: 2,9 kg
Ambient temperature: -10 °C ... +50 °C
Operating temperature range: -20 °C ... +45 °C
Power supply: 24 V DC, 3.2 A

Version: selectable option
Available languages of the operating system: English, German, French and Spanish, others on request

Memory size: selectable option

Number of virtual sensors: selectable option
With the virtual sensors further parameters and calculations can be carried out directly on the BlueBox

Interfaces:
1x serial interface (example protocols: RS232/RS485 (Modbus RTU), IEC 60870-5-104; for others see protocol list)
1x CAN bus
1x Ethernet 10/100MBit
2x pulse input
2x current output 4-20mA
2x relay 48V AC/DC 0.5A
1x 12V 6W integrated power supply for sensors/modules with RS232/485

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Selectable options
Pos.	Version	Art. no.
1	Version 4.2	42GO

Pos.	Memory size		Art. no.
2	512 MB		-512
3	2GB		-2G

Pos.	Number of virtual sensors			Art. no.
4	10			-10
5	20			-20
6	50			-50
7	100			-100

Pos.	Length of fibre optic cable				Art. no.
8	2,5 m				-2,5
9	6 m				-6
10	10 m				-10
11	20 m				-20

	Example configuration Art. no. 486 0060-42GO-512-10-2,5

ISA - UV/Vis Spectrometer System

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