The ISCO 2150 area velocity flow meter features a smart area velocity probe which is built on digital electronics, so the analog level is digitized in the sensor itself to overcome electromagnetic interference.
The area velocity probe is factory calibrated for a 3 meter span at different temperatures. This calibration eliminates drift in the level signal and provides long term level stability. This reduces recalibration frequency and completely eliminates span recalibration.
In the field, the ISCO 2150 flow meter can be powered by either two alkaline, or ISCO Rechargeable lead acid batteries, within a 2191 Battery Module. The battery has a life of up to 15 months at 15 minute data storage intervals due to highly efficient power management.
Standard Features of the 2150 include:
- Submersible enclosure meets NEMA 4X, 6P (IP68) environmental specs.
- Chemically resistant epoxy-encapsulated sensor withstands abuse, resists oil and grease fouling, and eliminates the need for frequent cleaning.
- The replaceable high-capacity internal desiccant cartridge and hydrophobic filter protect sensor reference from water entry and internal moisture.
- Secure data storage. All data are continuously stored in flash memory to protect against loss in case of power failure
- Variable rate data storage lets you change the data storage interval when programmed conditions occur. This feature assures maximum information about an exceptional event such as an overflow while conserving power and data capacity during normal conditions.
- Easy to upgrade. New operating software can be downloaded into non-volatile flash memory, without affecting stored program and data.
- Up to four 2100 Series flow modules can be networked by stacking and/or extension cables.
- Pressure transducer vent system automatically compensates for atmospheric pressure changes to maintain accuracy.
- The quick-connect sensor can be easily removed and interchanged in the field without requiring recalibration.
- Secure data storage. All data are continuously stored in flash memory to protect against loss in case of power failure
- Records and stores input voltage and temperature data.
- 38,400 bps communications provides speedy setup and data retrieval.
Manufactured by: Teledyne ISCO Model: ISCO 2150 Area Velocity Flow Meter
Services offered for this product
- Sales
- Rental
- Installation
- Calibration
- Maintenance
Applications
- Partially filled-pipes
- Open channels - uniform and non uniform
- Streams
- Irrigation channels
- Short term flow studies
- Permanent - real time telemetry
| 2150 Flow Module |
| Size (HxWxD) |
2.9 x 11.3 x 7.5 in (74 x 287 x 191 mm) |
| Weight |
2.0 lb (0.9 kg) |
| Materials of Construction |
High-impact polystyrene, stainless steel |
| Enclosure (self-certified) |
NEMA 4X, 6P (IP68) |
| Temperature Range |
-40° to 140°F (-40° to 60°C) operating and storage |
| Power Required |
12 VDC nominal (7.0 to 16.6 VDC), 100 mA typical, 1 mA standby |
| Power Source |
Typically, an Isco 2191 Battery Module, containing 2 alkaline or 2 rechargeable lead-acid batteries. (Other power options are available; ask for details.) |
| Typical Battery Life |
(using 15-minute data storage interval) Energizer® Model 529 alkaline - 15 months; Isco rechargeable lead-acid - 2.5 months |
| Program Memory |
Non-volatile programmable flash; can be updated using PC without opening enclosure; retains user program after updating. |
| Built-in Conversions |
| Flow Rate Conversions |
Up to 2 independent level-to-area conversions and/or level-to-flow rate conversions. |
| Level-to-Area Conversions |
Channel Shapes - round, U-shaped, rectangular, trapezoidal, elliptical, with silt correction; Data Points - Up to 50 level-area points. |
| Level-to-Flow Conversions |
Most common weirs and flumes; Manning Formula; Data Points (up to 50 level-flow points); 2-term polynomial equation |
| Total Flow Calculations |
Up to 2 independent, net, positive or negative, based on either flow rate conversion |
| Data Handling and Communications |
| Data Storage |
Non-volatile flash; retains stored data during program updates. Capacity 395,000 bytes (up to 79,000 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, temperature |
| Storage Mode |
Rollover; 5 bytes per reading. |
| Storage Interval |
15 or 30 seconds; 1, 2, 5, 15, or 30 minutes; or 1, 2, 4, 12, or 24 hours; Storage rate variable based on level, velocity, flow rate, total flow, or input voltage |
| Data Retrieval |
Serial connection to PC or optional 2101 Field Wizard module; optional modules for spread spectrum radio; land-line or cellular modem; 1xRTT. Modbus and 4-20 mA analog available. |
| Software |
Isco Flowlink for setup, data retrieval, editing, analysis, and reporting |
| Multi-module networking |
Up to four 2100 Series Flow Modules, stacked and/or remotely connected. Max distance between modules 3300 ft (1000 m). |
| Serial Communication Speed |
38,400 bps |
| 2150 Area Velocity Sensor |
| Size (HxWxD) |
0.75 x 1.3 x 6.0 in (19 x 33 x 152 mm) |
| Cable (Length x Diameter) |
25 ft x 0.37 in (7.6 m x 9 mm) standard. Custom lengths available on request. |
| Weight (including cable) |
2.2 lbs (1 kg) |
| Materials of Construction |
Sensor - Epoxy, chlorinated polyvinyl chloride (CPVC), stainless steel; Cable - Polyvinyl chloride (PVC), chlorinated polyvinyl chloride (CPVC) |
| Operating Temperature |
32° to 140°F (0° to 60°C) |
| Level Measurement |
| Method |
Submerged pressure transducer mounted in the flow stream |
| Transducer Type |
Differential linear integrated circuit pressure transducer |
| Range |
(standard) 0.033 to 10 ft (0.010 to 3.05 m); (optional) up to 30 ft (9.15 m). |
| Maximum Allowable Level |
34 ft (10.5 m) |
| Accuracy |
±0.01 ft from 0.033 to 10 ft, (±0.003 m from 0.01 to 3.05 m) |
| Long-Term Stability |
±0.023 ft/yr (±0.007 m/yr) |
| Compensated Range |
32° to 122°F (0° to 50°C) |
| Velocity Measurement |
| Method |
Doppler ultrasonic, frequency 500 kHz |
| Typical Minimum Depth |
0.08 ft (25 mm) |
| Range |
-5 to +20 ft/s (-1.5 to +6.1 m/s) |
| Accuracy |
(in water with uniform velocity profile, speed of sound = 4850 ft/s, for indicated velocity range); ±0.1 ft/s from -5 to 5 ft/s (±0.03 m/s from -1.5 to +1.5 m/s); ±2% of reading from 5 to 20 ft/s (1.5 to 6.1 m/s) |
| Temperature Measurement |
| Accuracy |
±3.6°F (±2°C) |
| 2191 Battery Module |
| Size (HxWxD) |
6.0 x 9.6 x 7.6 in (152 x 244 x 193 mm) |
| Weight (without batteries) |
3.2 lb (1.4 kg) |
| Materials of Construction |
High-impact polystyrene, stainless steel |
| Enclosure (self certified) |
NEMA 4X, 6P, (IP68) |
| Batteries |
Two 6-volt Energizer Model 529* alkaline (25 Ahrs capacity) or Isco Rechargeable Lead-acid (5 Ahrs capacity) recommended. *Note Energizer 529 ER does not give specified life. |
Files and software available to download:
 ISCO 2101 Field Wizard The 2101 Field Wizard is a durable and rugged field instrument for retrieving and transferring stored data from the 2100 series of Isco open channel flowmeters. View product page ISCO 2102 Wireless Telemetry Modem The 2102 Wireless Telemetry Modem provides remote data retrieval from flow monitoring instruments, reducing the need for confined space entry in sewer flow studies. View product page ISCO 2103 Wireless Modem Module (Discontinued) The 2103 Wireless Modem Module automates remote data retrieval in sewer flow studies, eliminating the need for frequent site visits and confined space entry. View product page ISCO 2103Ci CDMA Cellular Modem Module The Isco 2103c CDMA Cellular Modem allows you to download data remotely from 2100 series flow modules, eliminating costly landline installations, the need for repeated site visits and the need for costly and potentially dangerous confined space entries. View product page ISCO 2108 Output Module The ISCO 2108 enables easy interfacing between Isco's 2100 Series Area Velocity Modules and data collection systems like SCADA/DCS or any other secondary instruments. View product page
 Low Flow Conditions - Low Profile Area Velocity Monitoring  Supply and installation of instrumentation for water quality, flow and rainfall in the Highlands of Scotland
 ISCO 2150EX ATEX Area Velocity Meter (Available for Hire by the week) The 2150EX Area velocity flow meter is intrinsically safe and is specifically designed for use in Zone 0 and Zone 1 potentially explosive atmospheres under ATEX Directive 94/9/EC. View product page
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