Attachment I - Technical Specifications
FIXED MEASUREMENT STATIONS FOR AIR QUALITY MONITORING
NETWORK IN BOSNIA AND HERZEGOVINA
SCOPE OF DELIVERY
Prospective tenderer should offer an integral system – an air quality monitoring network that
will comprise the following:
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Two fixed measurement stations with measuring instruments
Installations
Data acquisition and processing center
Website for public display of data
Linking the new and updated facilities to data processing center
Staff training
System maintenance for a period of 12 months
Consumables for a period of 12 months
Technical documentation
Below are the technical characteristics of atmospheric pollution monitoring stations including
all analyzers and Center's relevant equipment and documentation.
Sites
Prijedor and Goražde
Measuring instruments and meteorological station (x2)

Stationary analyzer for automatic simultaneous
measurement of PM10 and PM2.5
Principle:
 Beta attenuation (Beta Analyzer), TEOM, Orthogonal
Light Scattering or other method for automatic
measurement of PM10 and PM2.5
 SO2 analyzer
 NO, NO2, NOx analyzer
 CO analyzer
 O3 analyzer
 Meteorological sensors
 Meteorological pole
 Data Logger for data storage
 GPRS /GSM device for data transfer
 Containers
Apart from the components listed above, the stations require a set of maintenance
equipment, spare parts and consumables to be procured as well listed in Appendix 1 to
this Attachment One.
1
Description of equipment
1. Containers for equipment
The plan is to place all equipment in containers maximally adapted for installation in urban
areas. The station has to be a makeshift container style station built of steel panels or epoxy
resin with glass fibers, RAL color that matches the environment, non-burning type, insulated
with self-extinguishing polyurethane, hermetically sealed to prevent any water or insects
from entering.
The structure should be self-supporting and easy to move to another location. The roof of
the station must be designed to bear the weight of two persons.
The station must provide for rational accommodation of all planned instruments and devices
with minimum dimensions 3.00x2.20x2.4m and comply with all applicable safety standards.
Wall thickness must be minimum 50mm.
The station must have rubber non-slip flooring. The container must have heating and cooling
equipment and a ventilation opening with insect screen and dust filter.
The container must be made of materials (structure, color, insulation, paneling) that are
suitable for this purpose or more precisely that do not affect the air quality monitoring.
1.1.
Station/container equipment
Heating/cooling equipment
Air-conditioning device with automatic summer/winter switching and power that guarantees
maintenance of inside temperature regime between 18 and 24 °C, with 220 V- 50Hz power
supply, with heating option by way of a heat pump. This device must be capable of
maintaining the inside temperature in the container throughout the year regardless of
temperature extremes. The air-conditioning device must be equipped with automatic switchon system in case of power failure.
Sampling device
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The sampling device must comply with the relevant EU standard and be in the form
of a glass tube made of borosilicate glass with stainless steel protection tube.
The end part of the device must be in the form of a glass manifold with 8 ports. The
system must be equipped with a 24V/DC ventilator and pressure indicator with an
alarm system in case of reduced flow.
The outer part of the system must have a teflon gasket and retaining ring. Cap of the
system must be made of stainless steel with simple fitting to the tube of the device.
Total length of the device must not be less than 2 m i.e. sampling position must be 34 m above ground. Instruments are connected with a PTFE tube.
In addition to gaseous pollutants sampling device it is necessary to install a heated
pipe with a flange for the sampling of suspended particulate matter. The sampling
pipes should be positioned so as to match the racks or analyzers.
2
Rack for analyzers
- A 19“ rack for mounting instruments and equipment. The rack must be fitted with a
sufficient number of power supply sockets for instruments installed in the
measurement station. The sockets must be connected to protective devices in
electrical cabinets.
Miscellaneous equipment
- One homologized 2 kg CO2 fire extinguisher
- One first aid cabinet with first aid kit
- One roof access stairway
- Trash bin
- Volumetric or IR burglar alarm with a siren and outdoor flashing siren.
- Local data acquisition with a possibility to generate digital alarm signals collected in a
peripheral data acquisition system in case of: power failure, open entrance door, high
inside temperature, low flow of air to be sucked in by a gaseous pollutants sampling
probe.
- GPRS modem or landline ADSL router
- Furniture, worktop dimensions min. 1.00x0.50m, work chair, cabinet with three
drawers
- If the location of the station allows, the Tenderer should fence off the perimeter with
a fence made of hard metal and galvanized mesh minimum 2.5m high. Mesh posts
should be typical and made of steel and galvanized sections. An entrance gate made
of galvanized steel hollow sections 1.20m wide and 2.50m high should be constructed
to allow access.
The Tenderer shall provide all necessary project documentation immediately after the signing
of the contract so as to enable the contracting authority to initiate the procedure for
obtaining a permit to install the stations on public land or a planning permission and, if
required, construction permits.
1.2.
Electrical equipment for the station
Electrical equipment should be complete and functionally appropriate for the requested
purpose. The electrical equipment and lighting system should be suitable for 380(400) V
AC, 50 Hz three-phase electric power and its dimensions should enable proper functioning of
both the instruments planned to be installed now and those that might be installed in the
future.
All electric cables should be installed in visible raceways made of self-extinguishing plastic
and all electrical conductors should have double insulation. All conductors and individual
clamps should be properly marked with a marking tape and caps for identification.
The electrical equipment will include minimum the following works:
- Place for a connecting cable and a meter cabinet in accordance with EPBiH technical
conditions
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1.3.
General distribution board for the station including overcurrent and earth fault
protective devices at the beginning of each group of users.
System for power distribution to different users
Internal lighting system with fluorescent tubes of a size that provides sufficient light
in all parts of the station
Emergency lighting system, minimum autonomy 30 min.
A power supply system for cases of power failure (UPS) for the whole station
enabling autonomous operation for minimum one hour.
Site for equipment installation
The contracting authority will provide a site for the installation of the monitoring station. On
this site, the prospective tenderer should construct an appropriate concrete slab for the
container allowing for minimum 60 cm space around the container.
This slab should have:
- Electrical power manhole (if requested)
- Telephone manhole (if requested)
Manholes shall be precast cement manholes with covers
2.
Measuring instruments
Below are the technical characteristics of automated systems for atmospheric pollutant
analysis. The planned instruments must be state-of-the-art technology in the field, both in
technological and in operational terms, and must comply with the relevant applicable
standards.
2.1.
Sulphur dioxide (SO2) analyzer
Reference method for Sulphur dioxide analysis is the one specified in EN 14212: Ambient
Air – Determination of Sulphur dioxide – Ultraviolet fluorescence method.
Given the purpose of these operations, it is necessary to acquire an automated
microprocessor-based non-stop measuring system accompanied by a certificate of
compliance with EN standards, MCERTS, TUV report.
This analyzer must ensure signalization of alarm status to the data acquisition and
processing system, as well as the calibration process using external calibration unit with
calibration gas and zero gas generator. Calibration device with calibration gas is planned for
calibration purposes. The analyzer must be installed in a 19“ rack and equipped with all
accessories necessary for proper installation and operation (slide rails, sampling pumps, etc.)
NOTE:
Permeation tube is not needed if the analyzer using an external calibration unit
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2.1.1
Minimum device configuration (for SO2):
Working principle-method:
Minimum measurement range:
Lower detection limit (LDL):
Precision:
Linearity:
Control:
Access limitation:
Calibration:
Display and communication alarms:
Interface:
Filter manipulation:
Power supply:
Installation:
Functional control:
Data base in memory:
Reading display option:
Language of directions for use:
Communication with dataloger:
Alarms:
2.2
UV fluorescence (UVF)
user selection option: 0...50 to 0 ...20 000 ppb,
auto/manual
0.4 ppb
+/- 1.0 %
+/- 1.0 F.S
installed touch screen LCD
without installed option for access limitation
automatic and manual with calibration unit
calibration error, UV lamp error, flow error
Internal memory for manual data acquisition
filter accessibility for replacement on the front
side of the analyzer
230 V, 50 Hz
in a 19“ rack with telescopic sliding rails
by way of an external calibration unit
10.000 half-hour averages – more than 200 day
µg/m³; ppb; ppm
One of BiH official languages or English
RS232 or TCP/IP
All alarms must be processed on dataloger
Nitrogen oxides (NO-NO2-Nox) analyzer
Reference method for nitrogen oxide and dioxide analysis is the one specified in EN 14211Ambient Air – Determination of the mass concentration of nitrogen oxides –
Chemiluminescence Method.
Given the purpose of these operations, it is necessary to acquire an automated
microprocessor-based non-stop measuring system accompanied by a certificate of
compliance with EN standards, MCERTS, TUV report.
This analyzer must guarantee signalization of all internal alarm status to the station's data
harvesting device, as well as the calibration process. This analyzer must ensure signalization
of alarm status to the data acquisition and processing system, as well as the calibration
process using external calibration unit with calibration gas and zero gas generator. Device
with calibration gas is planned for calibration purposes.
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2.2.1 Minimum device configuration:
Working principle-method:
Chemiluminescence detection principle
Minimum measurement range:
adaptable to user's needs: 0..50 to 0...20000 ppb
Lower detection limit (LDL):
NO: 0.4 PPB
Precision:
+/- 1.0 % F.S.
Linearity:
+/- 1.0 % F.S.
Control:
installed touch screen LCD
Access limitation:
without installed option for access limitation
Interface:
installed CF Card slot for manual data acquisition
Filter manipulation:
filter accessibility for replacement on the front
side of the analyzer
Power supply:
230 V, 50 Hz
Installation:
in a 19“ rack with telescopic sliding rails
Functional control:
by way of external calibration unit
Data base in memory:
10 000 half-hour averages – 200 day
Unit selection:
µg/m³; ppb; ppm
Language of directions for use:
One of BiH official languages or English
Communication with dataloger:
RS232 or TCP/IP
Alarms:
All alarms must be processed on dataloger
2.3
Carbon monoxide CO analyzer
Reference method for carbon monoxide analysis is the one specified in EN 142626- Ambient
Air – Determination of the mass concentration of carbon monoxides – Non-dispersive
infrared (NDIR) absorption method.
Given the purpose of these operations, it is necessary to acquire an automated
microprocessor-based non-stop measuring system accompanied by a certificate of
compliance with EN standards, MCERTS, TUV report.
This analyzer must ensure signalization of all alarm status to the data acquisition and
processing system, as well as the calibration process using external calibration unit with
calibration gas and zero gas generator. Device with calibration gas is planned for calibration
purposes.
2.3.1 Minimum device configuration:
Working principle-method:
Minimum measurement range:
Lower detection limit (LDL):
Precision:
Linearity:
Control:
Non-dispersive infrared absorption
adaptable to user's needs:0...10 to 0...1 000 ppm
0.04 ppm
+/- 1.0 % F.S.
+/- 1.0 % F.S.
installed touch screen LCD
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Access limitation:
Interface:
Filter manipulation:
Power supply:
Installation:
Functional control:
Own memory:
Unit selection:
Language of directions for use:
Communication with dataloger:
Alarms:
2.4
without installed option for access limitation
Internal memory for manual data acquisition
filter accessibility for replacement on the front
side of the analyzer
230 V, 50 Hz
in a 19“ rack with telescopic sliding rails
by way of external calibration unit
10 000 half-hour averages – 200 day
ppb; ppm; mg(µg)/m³
one of BiH official languages or English
RS232 or TCP/IP
All alarms must be processed on dataloger
Ozone (O3) analyzer
Reference method for ozone analysis is the one specified in EN 14625 ''UV absorbance
method''.
Given the purpose of these operations, it is necessary to acquire an automated
microprocessor-based non-stop measuring system accompanied by a certificate of
compliance with EN standards, MCERTS, TUV.
This analyzer must guarantee signalization of all alarm status to the station's data harvesting
device, as well as the calibration process. This analyzer must ensure signalization of alarm
status to the data acquisition and processing system, as well as the calibration process using
external calibration unit. Calibration device with O3 generator is planned for calibration
purposes.
2.4.1 Minimum device configuration:
Working principle:
Ultraviolet absorption method (NDUV)
Measurement range:
adaptable to user's needs: 0 ...100 to 0... 10
000 ppb
Lower detection limit (LDL):
0.6 ppb
Precision:
better than 1 ppb
Linearity:
+/- 1 % F.S.
Control:
installed touch screen LCD
Access limitation:
installed option for access limitation
Alarms:
calibration error, range calibration error,
temperature error in the ozone separator
Interface:
Internal memory for manual data acquisition
Data base in memory:
10.00 half=hour averages-more than 200 day
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Filter manipulation:
filter accessibility for replacement on the front
side of the analyzer
Power supply:
230 VAC, 50 Hz
Installation:
in a 19“ rack with telescopic sliding rails
Functional control:
by way of external calibration unit
Language of directions for use:
One of BiH official languages or English
Communication with dataloger:
RS232 or TCP/IP
Alarms:
All alarms must be processed on dataloger
2.5 Beta gauge absorption particulate matter PM10/PM2.5 analyzer
Reference method is the one specified in EN 12341-1 for PM10 and EN 14907 fort PM 2.5
Analyzer must have a certificate EN 12341-1 for PM10 and EN 14907 fort PM 2.5
All data are stored on internal memory
2.5.1 Minimum device configuration:
Working principle-method:
Beta attenuation (Beta Analyzer), TEOM, Orthogonal
Light Scattering or other method for automatic
measurement of PM10 and PM2.5
Measurement range:
0 ...>1500 µg/m³
Lower detection limit (LDL):
0.1 µg/m³
Resolution:
0.1 µg/m³
Sample flow:
> 50 l/h
Control:
Display with keyboard keys
Alarms:
All alarms must be processed on dataloger
Power supply:
230 VAC, 50 Hz
Installation:
in a 19“ rack with telescopic sliding rails
Sampling system:
Stainless steel sample system
Calibration:
Automatic calibration and manual calibration
Language of directions for use:
One of BiH official languages or English
Other Sensors:
Temperature, relative humidity and pressure sensor
must included
Communication with dataloger:
RS232 or TCP/IP
2.6
Zero gas generator and calibration with calibration gas
Zero gas generator must consist of a filtration system with minimum three chambers and
minimum five filters and must be equipped with an oil-free compressor, valves and other
accessories for automatic functioning.
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2.7 Calibration unit
Working principle of the calibration unit is based on the chamber for dilution of calibration
gas SO/ NO/O3 / CO.
O3 generator must be included in the calibration units
2.7.1 Minimum device configuration:
Linearity:
1 % or better
Power supply:
230 VAC, 50 Hz
Linearity:
0.8 % of the range
Repeatability:
+/- 0.2 % of the range
Standard range:
0.1 – 4 l/min.
Flow control by way of a mass flow controller
O3 generator
Generation of O3 – measurement gas with UV-radiation
Temperature: 70 ̊ C
PID temperature regulator with PT100 sensor
Accuracy: +/- 0.1 ̊ C
Calibration gas
Individual aluminum bottles or gas mixtures (SO2, NO, CO) in accordance with analyzer's
requirements with a certificate of concentration with maximum deviation of 5% and
minimum 12 month stability.
2.8.
Meteorological sensors
Fixed station should be equipped with meteorological equipment and sensors for measuring
the following characteristic:
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Wind direction
Ultrasonic wind direction meter
Range:
0-359 ̊
Precision:
+/- 2 ̊
Resolution:
1̊
Power supply:
15 ... 30V DC
Outputs:
RS232/485 or analog 4-20 mA
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Wind speed
Ultrasonic wind speed meter
Minimum range:
0-60 m/s
Resolution:
0.01 m/s
Accuracy:
+/- 1.5%
Working temperature:
-40 ̊ C to +70 ̊ C
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Power supply:
Outputs:
15 ...30 V DC
RS232/RS485 or analog 4-20 mA
•
Relative humidity and temperature of air:
Humidity sensor:
Hygro Clip
Temperature sensor:
Pt 100 - 1/3 Class B
Humidity range:
0 ... 100 % RH
Temperature range:
-35 ... +70 ̊ C
Humidity:
4 ... 20 mA = 0 ... 100% RH or RS232/485
Temperature:
4 ... 20 mA= -35 ... +70 ̊ C or or RS232/485
Accuracy for humidity:
±1.0%
Accuracy for temperature: ±0.1 °C
Resolution
Min. 0.1ºC
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Solar radiation;
Standard Star pyranometer for measuring global solar radiation (G)
Principle:
measuring differences in temperature between the white
and black
sector of the indicator
-2
Measurement range:
0 ...1500Wm
Sensitivity:
0.3 ... µm
Output signal:
4 ... 20Ma =0 ...1500Wm-2
Working temperature:
- 40°C ...+60°C
Resolution:
< 1Wm-2
Stability:
< 1% in the range 0.5 ...1330 Wm-2
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Precipitation (weighing type
Range:
Maximum continual range:
Device constant:
Sensitivity:
Accuracy:
Working temperature:
pluviometer);
0+82 mm
0+300 mm/h
0.2mm/imp.
0.2 mm
±%+60mm/h;
0 ÷+70°C
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Barometric pressure
Range:
Sensitivity:
Accuracy:
Resolution:
Linearity:
600 ÷ 1100 mb (hPa)
0.1 mb (hPa)
±0.5 mb (hPa)
0.1 mb (hPa)
±0.15% .f.s
Barometric pressure must be compensated for temperature dependency -30ºC to
+70ºC
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3. DATA ACQUISITION SYSTEM
3.1.
Data acquisition and processing system in the station
Data logger should be equipped with minimum 6 RS232 ports, 8 analog/8 digital ports, USB
and connection for LAN communication.
Data logger must have an integrated Web and FTP server protected with security codes
which enables direct access to data logger web server.
The system may be installed on a 19" rack, placed in a box with protection from dust.
Data acquisition system must have such characteristics which guarantee the following:
a) Digital communication for the acquisition of measurement values from analyzers,
their status and diagnostics signal;
b) Setting integration time for basic data;
c) Setting time for determination of mean value of data;
d) Real time (graphic and numeric) presentation of current values;
e) Graphic and tabular presentation of mean values;
f) Emitting a signal for analyzer status change, change of scale and change of mode
(Zero-Span-Sample);
g) Pre-processing analog signals;
h) Calculating mean values and mean values of their standard deviations;
i) Pre-setting alert level;
j) Data storage;
k) Availability of data for remote transfer, by way of a modem, to the Central data
management, archiving and processing system which will be located in the premises
of the Contracting Authority.
l) Allow real-time telemetric operations of the central system;
m) Periodic automatic control of the installed software and hardware (watch dog);
n) Direct control over installed instruments;
o) Entry of correction factors for readings in automatic and manual mode.
3.2
Linking stations to the Central System
New stations in the national air quality monitoring network need to be linked to the existing
Central system for data acquisition and processing.
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