mainstream™
MainProbeX
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MainProbeX is the latest evolution in open channel flow measurement — now certified for ATEX Zone 0, the highest safety classification for explosive gas environments. Engineered for performance in hazardous locations, MainProbeX offers reliable Doppler-based velocity measurements even in challenging, particle-rich flows. Compact, robust, and easy to install, it’s ideal for wastewater networks, industrial sites, and any application where safety and precision cannot be compromised.
MainProbeX — certified safe, trusted everywhere.
- ATEX Zone 0 certified
- Rugged IP-rated design
- High accuracy in low-level and turbulent flows
- Flexible integration with data loggers and telemetry systems
measurands and units
| Power Supply Voltage : | 0.1 V resolution |
| Fluid Temperature : | 0.5°C resolution |
| Signal Quality : | 0.1% resolution |
| Velocity : | mm/s, cm/s, m/s, in/s, ft/s, ft/min: 1 mm/s resolution |
velocity measurement
| Transducer Type : | Submerged sensor containing complete ultrasonic transmitter, receiver and signal processing chain |
| Method : | Phase Coherence time delay measurement which determines the time for tracers carried by the flow to travel a fixed distance (~ 0.75 mm) |
| Start-up Time : | Measurement available within 1.5 sec of power up |
| Minimum Operating Depth : | 30 mm |
| Velocity Range : | -5 m/s to -10 mm/s and 10 mm/s to 5 m/s |
| Resolution : | Better than 1 mm/s |
| Measurement Integrity : | Ultrasound signal quality monitor gives the percentage of the measurement time that the received ultrasound signal contains verifiable velocity information |
| Mainstream Adaptive Measurement System : |
Automatically adjusts the ultrasonic signal acquisition time so that each velocity measurement is based on the same quantity of information |
power supplies
| DC Supply : | 6*-28Vdc at 25mA maximum current whilst measuring; *maximum 1 unit load |
communications
| Modbus : | Modbus RTU protocol over half-duplex RS485 connection. Address range 1-247. 0.32 unit load |
| Drive capability 25-unit loads. Baud rates 2400, 4800, 9600, 19200 (default), 38400, 57600 and 115200 |
entity parameters
| Supply: | Ui – 28V, Ii – 200mA, Pi – 1.1W |
| Data: | Ui – 28V, Ii – 60mA, Pi – 160mW |
| Certification: | Ex ia IIC T4 Ga (-10°C ≤ Tamb ≤ 80°C) |
| Atex: CSANe 25ATEX1131X |
product hardware
| Materials : | Streamlined PVC-U moulding and polyurethane cable |
| Dimensions : | 105 mm long x 50 mm wide x 20 mm high |
| Cable : | Power and comms each in screen; twisted pairs with overall screen |
| 8 mm diameter polyurethane cable. Minimum static bend radius 60 mm |
| Weight : | 850 gm including standard 10 m cable length |
| Maximum Cable Length : | 300 m |
| Environmental Protection : | Totally encapsulated to IP68 |
| Operating Temperature : | -10°C to 80°C |
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To order additional products please call: +44 (0) 01535 654333 or email: support@mainstream-measurements.com
