sofrel lt-us - LACROIX Sofrel

SOFREL LT-US
Flow measurement for waste water networks
Energy autonomous, equipped with a high-performance
GSM antenna, watertight (IP68), the SOFREL LT-US meets
the instrumentation needs of water networks.
Thanks to its ultrasonic transducer for level measurement, the
LT-US data logger enables continuous monitoring of flow into
collectors or discharges into the natural environment.
Simple to set up, offering excellent autonomy (battery
powered), the LT-US provides a perfectly optimized solution
for the control and exploitation of waste water and rainwater
networks:
Self-monitoring
Continuous diagnostics
Flow measurements and calculations
Flow recording with reference to alert thresholds...
SOFREL LT-US :
Flow measurement for
waste water networks
Overflow detection
- Using special SOFREL CSV sensor
- High reliability detection
Measurements
- Ultrasonic transducer, measurement range 0.2 - 3 m
- Accuracy: +/- 3 mm
- Cable length: 5 m
- 2 optional AI for external sensor 4-20 mA
Calculations and archiving
- Flow calculation by conversion tables
- Daily calculation of flow-related volume
- Management of alert thresholds by level or flow
- Archiving of measurements according to variable
periods (automatic change of period upon event,
for example: overflow)
- Archiving of status changes (for example: thresholds)
Signalling and warnings
- Digital inputs (DI) assignable to contacts or to
SOFREL CSV overflow sensors
- In the event of a status change or threshold being
exceeded:
• Communication to centralization system
• SMS alert issued
INSTALLATION AND SET-UP
- Mounting kit supplied with the data logger
- Optional extras (for installation of the US
transducer):
• Retractable mounting bracket
• Deflector
- Very simple start-up of data logger + US
transducer (SOFTOOLS graphic software)
Screw for angle
adjustment
LOCAL OPERATION (Bluetooth)
- Complete diagnostics (status of DIs and AIs,
GSM reception, best operator test, measurement
calibration, measurement quality test, etc.)
- Transfer of data with curve graphs and Excel tables
REMOTE COMMUNICATION
Daily transmission of data by GPRS to:
• SCADA Central Stations
• Supervisors
• OPC servers
• WEB LS server
AUTONOMY
Estimated
Measurement archiving period
battery
life
Ultrasonic sensor
on its own
5 minutes
6 years
Ultrasonic sensor
combined with an
overflow sensor
30 minutes outside the overflow
1 minute during the overflow
(for 20 mm of overflow per day)
10 years
TECHNICAL CHARACTERISTICS
- IP68 watertightness (certified 1 m water – 100 days)
- Long-lasting internal battery (powering data logger
+ transducer)
- Integrated high-performance GSM/GPRS antenna
- Waterproof external antenna for very difficult
GSM reception situations (LT-US EA version)
- US IP68 cell entirely managed by the data logger
- Shielded cell/logger connection cable
- 4 digital inputs (DIs)
- 2 optional analogue inputs (AI)
- User access to SIM card and battery
- Communication by Bluetooth connection for on-site
data handling, configuration set-up, diagnostics, etc.
Screw for bracket
retraction
2, rue du Plessis - 35770 Vern-sur-Seiche (Rennes) France
Tél.: +33 (0)2 99 04 89 00 - Fax: +33 (0)2 99 04 89 01
E-mail: telecontrol@sofrel.com - Website : www.sofrel.com
Sofrel LS website: www.ls-leak-detection.com
DC39-SOFREL LT-US-En-2013-09 - Note: non-contractual document. The manufacturer reserves the right to modify any specifications without notice
LEVEL AND FLOW MEASUREMENT
FUNCTIONS