MSFM Sewer Flow Monitor

• IS certified(Europe and worldwide)
• Embedded GPRS remote data delivery
• Worldwide roaming data tariffs
• Combined A/V sensor
• Hydrostatic (pressure) depth sensor
• Ultrasonic velocity sensor
• Pressure Transducer Interface (optional 3rd sensor)
• Ultrasonic level sensor (optional 3rd sensor)
• 2 spare logger channels (e.g. rainfall/flow/intruder)
• External Li-ion rechargeable sensor battery
• 30+ weeks at 5 min battery life A/V sensor
• 5 years battery life for GPRS comms, logger and sensor
• Hi/low alarms with ‘send latest data’ feature
• Hi/low alarms with local output (e.g. sampler)
• IP68/NEMA 6P construction
• Military specification connectos
• Custom internal hi-gain underground antenna
• External antenna option (for marginal signal sites)

The MSFM Sewer Flow Monitor is a versatile Ultrasonic Doppler Flow measurement system, ideal for use in open channels or partially-filled pipes. It is certified to ATEX/IEC Ex Zone 1.

It offers accurate monitoring of raw sewage, industrial effluents and storm waters, with automatic GPRS data retrieval as standard and worldwide usage capabilities. The additional standard input accepts the an Ultrasonic Level Sensor for storm overflow monitoring or PTI Pressure-Depth Sensor.

Velocity Sensor - Dual Piezoelectric Elements
Velocity range: 0.03m/s to 4.00m/s (resolution 1mm/s)
Linearity: ±1%
Accuracy: ±2.5% FS (±1% in calibrated range 0.05m/s - 2.00m/s)

Depth Sensor (Hydrostatic Pressure)
Titanium diaphragm isolated silicon sensor
(integrated temperature compensation)
Range: 0.0m to 6.0m (resolution 1.0mm)
Linearity: 0.1% BSL
Accuracy: ±0.2% FS (±0.1% in calibrated range 0.03m - 2.00m)

Optional Level Sensor (Ultrasonic)
CSO Temperature Compensated Ultrasonic Depth Probe
Range: 0.0m - 3.00m (with 200mm deadband)
Accuracy: ±0.25% FS (integrated temp compensation)
Main beam angle: 10° (-3dB)

Optional Depth Sensor (PTI) Pressure Transducer Interface
Ranges available between 0-3m and 0-100m
Accuracy dependent upon pressure range, typically +/-0.1% F.S.
Resolution: +/-1.0mm

Data Logger and GPRS/GSM Communication
Memory: solid state 128K - 40K per channel (rotating store or store until full)
Recording interval programmable between 1 minute and 1 hour
GSM/GPRS communication worldwide compatibility:
900MHz, 1800MHz integral antenna (worldwide except North America),
850MHz, 1900MHz integral antenna (North America)
Data transmission: GPRS - 15 minutes, hourly, daily, weekly, monthly at programmable intervals
Data logger and GPRS comms power supply: 5 years typical life span
internal lithium battery pack (user replaceable)

Main Sensor Power Supply and Operating Capacity
12V ATEX Li-ion rechargeable battery pack
Full Charge provides 30+ weeks at 5 min logging rate

Alarm Dial Out
High/low threshold and profile alarms on each channel with ‘send latest data’ on alarm and option to repeat data send

Additional I/O
2 analogue/digital input channels
1 pulse output

Environmental
Operating temperature: -20°C to +60°C
Protection: IP68/NEMA6P
Connectors: IP68 Mil – Spec
Dimensions: 530 x 213 x 150 (maximum) including battery pack and protection frame
Weight: 8.5kg (including battery pack, frame, depth and velocity sensors with standard 10m cables)

Approvals
IRA 12 ATEX 2110X Ex II 1G Ta -40°C to +60°C
IEC Ex SIR 12.0044X Ex ia IIB T4 Ga Ta -40°C to +60°C
GSM Communication Certification IC: 2417C-SL6087 FCC ID: N7NSL6087

Brochures
MSFM Datasheet

Application Notes
Vauxhall Case Study