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Product #:4840
OBSOLETE ITEM
CSA-NRTL/C Certified
The Hach Sigma 940 Intrinsically Safe Area Velocity Flow Meter is CSA-NRTL/C DEMKO listed and certified for operation in Class I, Division I, Groups C & D hazardous locations.
Versatile Set-up
Use a single Sigma 940 flow meter for multi-point and/or redundant monitoring. The flow meter can accommodate two Submerged depth area velocity sensors or a combination of one Submerged area velocity or one velocity only sensor and one ultrasonic depth sensor (in-pipe or down looking).
Long Battery Life
The meter will typically operate for about 365 days with a 15-minute recording interval, using one submerged area velocity sensor and downloading data once per week.
Rugged Construction
The enclosure of the Sigma 940 flow meter is NEMA 6P-sealed to withstand submergence and prolonged surcharge conditions.
Sampler Pacing Capabilities
The sampler pacing capabilities of the flow meter are ideal for Combined Sewer Overflow and stormwater monitoring.