T/FL-DP Air Flow Monitoring System
- Robust air flow monitoring system based on high-precision differential pressure measurement
- 2-point mesh
- Automatic zeroing of differential pressure transducers
- Touch evaluation and control unit to display measured values, status and set parameters
- Connection to tunnel control system by RS-485 MODBUS RTU, optionally by analogue outputs and relay contacts
T/FL-US Air Flow Monitoring System
- Accurate ultrasonic air flow measuring system based on different transition times of ultrasonic pulses
- Measurement of average air flow over the whole tunnel cross section
- Sensor setup via service interface
- • Suitable for tunnel cross sections up to 18 m (Measuring path up to 25 m)
- Connection to tunnel control system either via analogue output and relaysor via RS-485 MODBUS RTU
- Visible LEDs to indicate sensor status
- Corrosion-resistant non-wearing polyamide membranes
- Optional, remote touch operating unit to display measured values and to modify parameters
SMART/AQM Air Quality Monitor
- Smart IoT enables visibility and gas sensor
- Scattered lightvisibility sensor
- Dual beam method to compensate soiling and ageing
- Optional up to 3 electrochemical 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
- Active extraction of sample air by integrated fan
- Integrated purge air system
- Optional sample heater to eliminate fog from measurement
- 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)
- MODBUS/TCP (Ethernet)
- Optional smart/HUB IoT operating and control unit with touch display
SMART/ECS Gas Sensor
- 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)
- MODBUS/TCP (Ethernet)
- Optional smart/HUB IoT operating and control unit with touch display
T/LUM A Luminance Meter
- 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 IP 67 made from stainless steel 1.4404
- Electronically controlled heating and temperature monitoring
- Mounting flange to adjust horizontal and vertical angle
- Fault indication by relay isolated (NC)
- Optional second outut channel for increased resolution at low lighting levels
- Surge protection
T/VIS-TR Visibility Monitoring System
- Visibility measurement by optical transmission method
- Reliable measurement along a path of 10 m parallel to the tunnel axis
- Parametrisation of the sensor via Modbus RTU
- External cable length of 1000 m to tunnel control system
- Signal output either via analogue and relay outputs or RS-485 with MODBUS RTU protocol
- Visible LEDs show sensor status
