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2150EX Flow Meter for Zone 0 locations, with 2196EX Battery Module and carrying handle, includes AV2150EX sensor with 3m (10 ft) level measurement range and 7.6m (25 ft) cable, ATEX approved

Part Number: 68-2000-043Product Details

Overview

Area Velocity meter - Baseefa approved as ATEX Group II, Category 1G

The 2150EX is an intrinsically safe Area Velocity Flow Meter that is specifically designed and Baseefa-approved for use in Zone 0 and Zone 1 potentially explosive atmospheres under ATEX Directive 94/9/EC.

The AV 2150EX smart Area Velocity probe is built on digital electronics, so the analog level is digitized in the sensor itself. The probe is also factory-calibrated for 3 meter span at different temperatures. This superior built-in calibration eliminates temperature drift in the level signal, providing long-term level stability that reduces recalibration frequency and completely eliminates span recalibration.

The 2150EX is powered by two lithium or rechargeable lead acid battery packs, or by the 2194EX network interface module. Highly efficient power management provides battery life up to 8 months with two-minute data storage interval.
Features

• Rugged, submersible enclosure is permanently sealed to meet IP68 (NEMA 4X, 6P) requirements
• Easy to upgrade. New operating software can be downloaded into non-volatile "flash" memory via PC connection, without affecting stored program and data, and without removing the 2150EX from the hazardous area.
• Chemically resistant. The epoxy-encapsulated sensor withstands tough applications.
• Rollover memory with variable rate data storage, lets you change the data storage interval when programmed conditions occur.
• Pressure transducer venting system automatically compensates for changes in atmospheric pressure to maintain accuracy
• Quick connect area velocity sensor can be easily removed and interchanged in the field with no recalibration.
• High-capacity internal desiccant cartridge keeps the vent free of moisture during normal operation
• Replaceable hydrophobic filter protects against intrusion of water during submersion.
• Sealed AV sensor resists fouling by oil and grease, eliminating frequent cleanings needed with electromagnetic probes.
• 38.4k baud communication provides speedy setup and data retrieval.

Applications

• Open channel flow measurement in Hazardous Locations (ATEX Category 1G)
• Portable and permanent-site AV flow monitoring for inflow and infiltration, sewer overflow, and other sewer studies.
• Measuring shallow flows in small pipes. The low profile Area Velocity sensor minimizes flow stream obstruction and senses velocity in flows down to 25 mm in depth.
• Level measurement in explosive or potentially explosive areas, such as manholes, digesters, and storage tanks

Specifications

Part Number: 68-2000-043
Accuracy ±0.003m (maximum non-linearity, hysteresis, and temperature error from actual liquid level, from 0.03m to 3.05m)
Accuracy ±2°C
Accuracy (in water, uniform velocity, speed of sound = 1480 m/s) ±0.03 m/s for velocities from -1.5 to +1.5 m/s; ±2% of reading for velocities from 1.5 to 6.1 m/s
Approval Baseefa approved as ATEX Group II category 1G equipment, under ATEX Directive 94/9/EC

Typical Battery Life (estimated): Lithium batteries - 49 months with 15 minute data storage interval; 8 months with 2 minute data storage
Lead-acid batteries - 157 days with 15 minute data storage interval; 31 days with 2 minute data storage. (Assumes 23°C; actual performance is affected by site conditions)
Batteries Lithium or rechargeable lead-acid batteries, 2 required
Baud Rate 38400
Cable Length × Diameter 7.6m × 0.9cm
Channel Shapes Round, U-shaped, rectangular, trapezoidal, elliptical, with silt correction
Compensated Range 0°C to 50°C
Data Points Up to 50 level-flow rate points
Data Points Up to 50 level-area points
Data Storage Memory Non-volatile flash; retains stored data during program updates. Capacity 395000 bytes (up to 79000 readings, equal to over 270 days of level and velocity readings at 15 minute intervals, plus total flow and input voltage readings at 24 hour intervals)
Data Types Level, velocity, flow rate 1, flow rate 2, total flow 1, total flow 2, input voltage
Enclosure IP68 (NEMA 4X, 6P, self-certified)
Equation 2-term polynomial
Flow Rate Conversions Up to 2 independent level-to-area conversions and/or level-to-flow rate conversions
Flumes Parshall, Palmer-Bowlus, Leopold-Lagco, trapezoidal, H, HS, HL
Long-Term Stability ±0.007 m/yr
Manning Formula Round, U-shaped, rectangular, trapezoidal
Material High-impact ABS
Materials Sensor - Epoxy, chlorinated polyvinyl chloride (CPVC), stainless steel
Cable - Polyvinyl chloride (PVC), chlorinated polyvinyl chloride (CPVC), stainless steel
Maximum Allowable Level 10.5m
Method Submerged pressure transducer mounted in the flow stream
Method Doppler ultrasonic, Frequency 500 kHz, Transmission Angle 20° from horizontal
Power 7.0 to 9.0VDC, 100 mA typical at 8V DC, 1 mA standby
Program Memory Non-volatile, programmable flash; can be updated using PC without opening enclosure; retains user program after updating
Range -1.5 to +6.1 m/s
Range 0.010m to 3.05m
Setup and Data Retrieval Serial connection to IBM PC or compatible computer with Isco Flowlink 4 Software.
Size (H × W × D) 22.6cm × 28.0cm × 19.3cm including battery compartment
Size (H × W × L) 1.9cm × 3.3cm × 15.2cm
Storage Interval 15 or 30 seconds; 1, 2, 5, 15, or 30 minutes; or 1, 2, 4, 12, or 24 hours. 5 Bytes per reading.
Storage Mode Rollover with variable rate data storage based on level, velocity, flow rate 1, flow rate 2, total flow 1, total flow 2, or input voltage
Temperature Range -40°C to 60°C operating and storage
Total Flow Calculations Up to 2 independent, net, positive or negative, based on either flow rate conversion
Transducer Type Differential linear integrated circuit pressure transducer
Typical Minimum Depth 25mm
Weight 3.0kg (without batteries)
Weight (including cable) 1.02kg
Weirs V-notch, rectangular, Cipolletti, Isco Flow Metering Inserts, Thel-Mar

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