The T701H is a fully self-contained source of high purity zero air for dilution calibrators. It is ideal for use with highly sensitive analyzers in ambient background and trace level applications. The T701H includes a dewpoint sensor, an oil and diaphragm-free pump, scrubbers to remove SO2, NO, NO2, O3, H2S and NH3, plus high performance scrubbers to remove CO and Hydrocarbons.

The regenerative, heatless dryer removes water and produces output with a dew point less than -40ºC (up to 30 SLPM flow rate). The system’s pressure, temperature, and dewpoint values are all continuously monitored, which allows a microcontroller to adjust the pump cycling frequency, valve timing, and heater power for optimal performance

Features

• Modbus Connectivity
• Trace Level output purity
• Dewpoint Sensor
• Once/year maintenance interval
• Regenerative, heat-less dryer for maintenance-free water removal
• Long-life scrubbers for SO₂, NO, NO₂, O₃, H₂S and NH₃
• High performance CO/Hydrocarbon scrubber
• Automatic water drain
• Automatic pump control with demand tank
• Two-year warranty.

Download Specifications

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The Model T102 uses a high temperature external converter set at 850°C to allow conversion of H₂S, methyl mercaptan, dimethyldisulfide, and methyl-disulfide to SO₂ at this temperature with efficiency greater than 98%. A switching option alternately measures TRS and SO₂ while showing both readings concurrently on the front display.

All T Series instruments offer an advanced color display, capacitive touch screen, intuitive user interface, flexible I/O, and built-in data acquisition capability. All instrument set up, control and access to stored data and diagnostic information is available through the front panel, or via RS232, Ethernet, or USB com ports, either locally or by remote connection.

The Model T102 comes with NumaView Software. NumaView Remote PC Software allows for a remote connection with virtual interface and data downloading capability to analyzers operating NumaView Software. ​

Features

• Ranges: 0-50 ppb to 0-10 ppm TRS and up to 20 ppm SO2, user selectable
• Large, vivid, and durable color graphics display with touch screen interface
• Ethernet, RS-232, and (optional) USB com ports
• Front panel USB connections for peripheral devices and firmware upgrades
• 8 analog inputs (optional)
• Adaptive signal filtering optimizes response time
• Temperature & pressure compensation
• Auto zero system
• Comprehensive internal data logging with programmable averaging periods
• Ability to log virtually any operating parameter
• Two-year warranty

Applications

• Ambient Air Monitoring
• CEMS – Stack Air Monitoring​​
• Fenceline Air Monitoring
• Semiconductor

Download Specifications

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Features

• Installation in-situ
• Stainless steel housing 1.4404 (AISI 316L)
• IP rating IP69K
• Connection to tunnel control system by:
  • MODBUS RTU (RS-485)
  • MODBUS/TCP (Ethernet)
  • Analogue and relay outputs
  • Web service (Ethernet)
• Integrated web server for visualisation, configuration, data logging, remote maintenance (Ethernet option only)
• Optional smart/HUB IoT operating and control unit with touch display
• Plug & play operation

System Set-up

smart/AQM sensor to be mounted either:

• in-situ – directly in the tunnel’s driving area
• extractive – in a niche, cross-cut, etc.
• Terminal box – with 24 VDC power supply for connection of supply and signal cables
• System cable with quick connectors between sensor and terminal box for easy exchange
• Optional smart/HUB with touch display

Operation

Visibility and gas monitoring during normal operation is used to control the tunnel ventilation at normal operation. The need (and level of power required) for artificial ventilation by jet fans depends on the measured visibility and gas concentration.
Visibility is expressed by the extinction coefficient, which describes the light attenuation caused by particles in the air.
The sensor extracts air from the tunnel by an integrated fan and feeds it into the measuring cell which detects the intensity of light scattered by this sample, sets it into relation with the light passing through and calculates the extinction coefficient.
Optional electrochemical gas sensor cells induce currents proportional to the prevailing gas concentration. With these currents and the measured temperature, the gas sensor modules calculate the gas concentrations.

Advantages

• Specifically designed for application in tunnels
• Single sensor instead of transmitter/receiver pair requiring exact alignment
• Effective fog elimination by optional heater
• Easy recalibration by calibration plug
• Internal purge air system keeps optics clean and prevents long-term drift
• Robust stainless steel housing for protection against corrosion and water jets
• Permanent condition monitoring
• Remote maintenance
• Low maintenance requirements, stable, accurate
• Pre-calibrated gas sensor modules for easy exchange
• Flexible integration into tunnel control system
• Ethernet port
• Mounting height in accordance with Austrian RVS
• Menu guided recalibration of gas sensor modules
• Smart IoT solution from sensor over hub to asset management software

Download Specifications

The post smart/AQM Air Quality Monitor appeared first on Thomson Environmental Systems.

Features

• Luminance meter for measuring L₂₀ luminance in the access zone mounted on a mast in front of the tunnel portal or
• Luminance meter to measure luminance in the threshold zone L_th mounted on the tunnel wall
• Luminance meter for measuring luminance in interior zone L_fi mounted on the tunnel wall
• Power supply 230 or 115 VAC
• Signal outputs connected to lighting control system or tunnel control system
• Zoom lens to adjust the focus areas
• Sensor with V(λ) filter and silicon photo element
• Temperature compensated and long term stable amplifier for the photoelectric current using live zero
• Heated housing with protection class IP67 either made of stainless steel 1.4571
• Electronically controlled heating and temperature monitoring
• Mounting flange to adjust horizontal and vertical angle
• Fault indication by relay isolated contact (NC)
• Optional second output channel for increased resolution at low lighting levels
• Surge protection.

System Set-up

• Photometer in camera housing (Luminance camera) mounted on the tunnel wall or a pole in front of the tunnel portal
• Power supply (230 or 115 VAC)
• Signal outputs connected to lighting control system or tunnel control system

Operation

The requirements for tunnel lighting are determined by the nature of the human eye. How well the eye recognises vehicles and other obstacles in a tunnel depends on the lighting and visibility as well as the reflection characteristics of the road surface and the tunnel walls. Tunnel lighting needs to be adapted to these environmental conditions.

The tunnel lighting must be controlled so that users, both during the day and by night, can approach, pass through and exit the tunnel without changing direction or speed with a degree of safety equal to that on the approach road. Especially the lighting of a tunnel entrance should be adequate to avoid the “black hole effect” when a driver enters the tunnel.

Luminance is the measure representing what a human being perceives as brightness and as such is the main control variable for the tunnel lighting.

The luminance photometer comes with a zoom lens that is focused to measure the relevant area. Light from this area through the lens is directed to the photo element detecting its intensity. The integrated evaluation unit then calculates the luminance and provides it through the analogue output(s).

Advantages

• Specifically designed for tunnel applications
• Customisable measuring ranges
• Same luminance meter for all measuring ranges and applications
• No moving parts
• Sensor is easy to remove out of housing withoot any tools
• Housing resistant against corrosion, UV, oil and acid
• Extremely low maintenance requirements.

Download Specifications

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JES Tunnel Safety offer the Smart/ECS, an IoT-enabled gas sensor that can detect up to four gases: (CO, NO, NO2, SO2 – other gases on request).

Features

• Smart IoT enabled gas sensor
• Electrochemical measurement of gas concentration with up to 4 gas sensor modules
• Pre-calibrated gas sensor modules for different gases and measuring ranges, including CO, NO, NO₂, SO2
• Installation in-situ in the tunnel’s driving area or extractive with hose adapters
• Stainless steel housing 1.4404 (AISI 316L)
• Sensor protected against splashing of water and powerful water jets used for tunnel washing
• IP rating IP69K
• Optional LCD in housing cover
• Integrated web server for visualisation, configuration, data logging, remote maintenance
• Connection to tunnel control system by
  • MODBUS/TCP (Ethernet)
    
  • MODBUS RTU (RS-485)
    
  • Analogue and relay outputs (optional)
  • OPC UA (Ethernet)
• Optional smart/HUB IoT operating and control unit with touch display

System Set-up

• Smart IoT sensor for up to 4 gas sensor modules
• Exchangeable, pre-calibrated gas sensor modules
• Connection either to tunnel control system or optional oper-ating and control unit smart/HUB

Operation

Gas monitoring during normal operation is used to control the tunnel ventilation at normal operation. If and with how much power artificial ventilation by jet fans is operated depends on the measured visibility and gas concentration.

Electrochemical gas sensor cells induce currents proportional to the prevailing gas concentration. With these currents and the measured temperature, the gas sensor modules calculate the gas concentrations.

Advantages

• Specifically designed for application in tunnels
• Robust stainless steel housing for protection against corrosion and water jets
• Permanent condition monitoring
• Remote maintenance
• Low maintenance requirements, stable, accurate
• Pre-calibrated gas sensor modules for easy exchange
• Flexible integration into tunnel control system
• Ethernet port
• Mounting height in accordance with Austrian RVS
• Menu guided recalibration of gas sensor modules
• Smart IoT solution from sensor over hub to asset management software.Download Specifications

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Trelia Converge is engineered and purpose-built from the ground up using robust and extensible programming techniques to deliver a platform that delivers quality data management “out-of-the-box”, yet can be customised to accommodate your own unique use-case.

Retrieve real-time or historical data from any sensor, any brand, anywhere. Whether you have a single sensor, a sophisticated network with 50+ ambient stations, or IoT sensors; equipment and data management has never been easier.

Easily track the status of any instrument in your network from your phone or computer and know immediately if any of your monitors develop a fault or go out of specification.

Trelia gives you flexibility and customisation in analysing and visualising your data, including maps, wind and pollution roses, graphs, and tables. You can manually input data, quick flag data, and carry out statistical analysis and calculations.

Converge software and reporting features

• Server or cloud-based data and reporting options
• Automated reports at your desired frequency (daily, weekly monthly)
• A powerful yet easy to use interface
• Utilisation of proven software platforms for user familiarity
• Advanced email and SMS alerts for exceedances or event alarms. 

If you need a Data Logger, the Trelia Converge Logger is an excellent solution for Monitoring site telemetry:

• Data acquisition system Trelia Converge LOG
• Compact Industrial fanless PC hardware
• Windows 10 IOT
• Data acquisition software
• Desktop app developed in C#
• Framework .Net Core 3.0
• Node-red for AZURE IOT HUB communications
• Connectivity for smart environmental monitors
• Edge data processing
• Instruments telemetry for diagnostics & quality control.

Download Specifications

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Ideal for monitoring air quality outside or in workshops, TES Small Form AQMS measures key parameters:

Air pollutant concentrations: PM₁, PM_2.5, PM₄, PM₁₀, TSP, O₃, NO, NO₂, O3, CO, SO₂, H₂S, NH₃, HCHO, Cl₂, HCl, VOC, CH₄, CO₂ – other gases available on request

Meteorological parameters: temperature, pressure and relative humidity

Other parameters: noise, vibration and odour

Location: GPS

The device captures data in real-time and transfers them wirelessly to a advanced web platform, for data analysis and data management, remote control of the equipment and data integration into websites, software and smart city platforms.

Small form stations are light, compact and easy to install within just a few minutes. Once the stations are connected to the Internet through several communication links on-demand (Wi-Fi, 3/4G, LoRa, Zigbee…), the hyper-localised information is automatically transferred to a secure web platform that is accessible 24 hours a day.

Customize your own Small Form AQMS that meets your needs:

Options:

• Integrate sensors that you need
• Choose your communication link
• Add a back-up battery 

Accessories:

• Solar panel and batteries
• Heating resistance
• Mounting plate

For a wide range of applications:

Smart cities, industrial sites, mining sites, sewage treatment plants, mines, soil remediation, refineries, workshops, warehouses, worksites, road networks, race tracks, ski, and sea resorts.

The post TES SMALL FORM AIR QUALITY MONITORING SYSTEMS (AQMS) appeared first on Thomson Environmental Systems.

Two identical sensors alternately transmit and receive ultrasonic pulses. The system evaluates the transition times dependent on direction and calculates flow speed.

Key Benefits

• Extremely low maintenance
• Reliable measurement across the tunnel profile
• Stand-alone system, no control unit required
• Simple configuration
• Corrosion resistant against aggressive tunnel atmosphere
• Withstands lavation process in tunnels
• Sensors can be replaced quickly, no tools, no re-alignment required
• Signal transmission
  – per 4-20mA analog signal and 2 relays
  – per RS 485 bus via MODBUS RTU protocol
• Minimal spare requirements.

Applications

Slow measurement:

• Road tunnels
• Railway tunnels

 Signals for ventilation control system

• Monitors air flow speed
• Enables control of flow speed in case of fire

Download Specifications

The post Durag D-FL 220T ultrasonic flow velocity monitor for tunnels appeared first on Thomson Environmental Systems.

Alternative product D-R 290 (2. G)

The D-R 290 works according to the transmission principle. The measurement is continuous, non-contact and without sampling in the exhaust gas flow. The D-R 290 is particularly suitable for monitoring medium to high dust concentrations.

For tunnel projects SMART/AQM

Air quality monitor with IoT visible opacity and gas sensor for use in tunnels. Visibility measurement is based on the scattered light principle, gas measurement with up to 3 electrochemical cells.

Download Specifications

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Exceptional stability is achieved with the use of an optical shutter to compensate for PMT drift and a reference detector to correct for changes in UV lamp intensity. A hydrocarbon ‘kicker’ and advanced optical design combine to prevent inaccuracies due to interferents.

All T Series instruments offer an advanced color display, capacitive touch screen, intuitive user interface, flexible I/O, and built-in data acquisition capability. All instrument set up, control and access to stored data and diagnostic information is available through the front panel using NumaView Software, or via RS232, Ethernet, or USB com ports, either locally or by remote connection using the included NumaView Remote PC Software.

The Model T100 comes with NumaView Software. NumaView Remote PC Software allows for a remote connection with virtual interface and data downloading capability to analyzers operating NumaView Software.

Download Specifications

The post TELEDYNE API T100 SO2 Series (TAPI) appeared first on Thomson Environmental Systems.