Isco 2150 Area Velocity Flow Module0 pages

Specifications
2150 Flow Module
Size (HxWxD):
Weight:
Materials of construction:
Enclosure (self-certified):
Temperature Range:
Power Required:
Power Source:
Typical Battery Life:
Program Memory:

2.9 x 11.3 x 7.5 in (74 x 287 x 191 mm)
2.0 lb (0.9 kg)
High-impact polystyrene, stainless steel
NEMA 4X, 6P (IP68)
-40° to 140° F (-40° to 60° C) operating and storage
12 VDC nominal (7.0 to 16.6 VDC), 100 mA typical,
1 mA standby
Typically, an Isco 2191 Battery Module, containing
2 alkaline or 2 rechargeable lead-acid batteries. (Other
power options are available; ask for details.)
Using 15-minute data storage interval
Energizer® Model 529 alkaline - 15 months
Isco rechargeable lead-acid - 2.5 months
Non-volatile programmable flash; can be updated
using PC without opening enclosure; retains user
program after updating.

Built-in Conversions
Flow Rate Conversions:
Level-to-Area
Conversions:
Level-to-Flow
Conversions:
Total Flow Calculations:

Up to 2 independent level-to-area conversions and/or
level-to-flow rate conversions.
Channel Shapes - round, U-shaped, rectangular,
trapezoidal, elliptical, with silt correction;
Data Points - Up to 50 level-area points.
Most common weirs and flumes; Manning Formula; Data
Points (up to 50 level-flow points); 2-term polynomial
equation
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)
Level, velocity, flow rate 1, flow rate 2, total flow 1,
Data Types:
total flow 2, input voltage, temperature
Storage Mode:
Rollover; 5 bytes per reading.
15 or 30 seconds; 1, 2, 5, 15, or 30 minutes; or 1, 2,
Storage Interval:
4, 12, or 24 hours
Storage rate variable based on level, velocity, flow rate,
total flow, or input voltage
Serial connection to PC or optional 2101 Field Wizard
Data Retrieval:
module; optional modules for spread spectrum radio;
land-line or cellular modem; 1xRTT. Modbus and
4-20 mA analog available.
Isco Flowlink for setup, data retrieval, editing, analysis,
Software:
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
38,400 bps
Speed:

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):

33 ft x 0.37 in (10 m x 9 mm) standard. Custom lengths
available on request.
2.2 lbs (1 kg)

Weight (including cable):
Materials of construction:

Operating Temperature:

Sensor - Epoxy, chlorinated polyvinyl chloride (CPVC),
stainless steel
Cable - Polyvinyl chloride (PVC), chlorinated
polyvinyl chloride (CPVC)
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

Isco 2150 Area Velocity
Flow Module
The 2150 Flow Module uses continuous wave
Doppler technology to measure mean velocity.
The sensor transmits a continuous ultrasonic
wave, then measures the frequency shift of
returned echoes reflected by air bubbles or
particles in the flow.
The 2150’s “smart” area velocity probe is
built on digital electronics, so the analog level
is digitized in the sensor itself to overcome
electromagnetic interference. The probe is
also factory-calibrated for 10-foot (3 meter)
span at different temperatures. This built-in
calibration eliminates drift in the level signal,
providing long-term level stability that reduces
recalibration frequency and completely
eliminates span recalibration.

Standard Features

In field use, the 2150 is typically powered
either by two alkaline, or Isco Rechargeable
Lead-acid batteries, within a 2191 Battery
Module. Highly efficient power management
extends battery life up to 15 months at
15-minute data storage intervals. Other
power options (including solar) are available.

♦ Replaceable high-capacity internal
desiccant cartridge and hydrophobic filter
protect sensor reference from water entry
and internal moisture.

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)

Applications

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.

♦ Portable and permanent-site AV flow
monitoring for inflow and infiltration,
capacity assessment, sewer overflow, and
other sewer studies.

2150 Ordering Information
Contact your Teledyne Isco representative for complete ordering details and
information on other 2100 Series Modules.

Description

2150 with AV sensor, 2191 Battery Module, and Handle
2150 Module with AV sensor (only)
Isco Flowlink® 5 Software
Energizer® Model 529 Alkaline Lantern Battery (2 required)
Isco Rechargeable Lead-acid Battery (2 required)
Charger for Lead-acid Batteries (holds 2 batteries)

Part No.

♦ Measuring shallow flows in small pipes.
Our low-profile area velocity sensor
minimizes flow stream obstruction and
senses velocity in flows down to 1 inch
(25 mm) in depth.

♦ Rugged, 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.

♦ 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.
♦ Up to four 2100 Series flow modules can
be networked by stacking and/or extension
cables.

68-2050-002
68-2050-001
68-2540-200
340-2006-02
60-2004-041
60-2004-040

4700 Superior Street
Lincoln NE 68504 USA
Tel: (402) 464-0231
USA and Canada: (800) 228-4373
Fax: (402) 465-3022
E-Mail: iscoinfo@teledyne.com
Internet: www.teledyneisco.com
Teledyne Isco reserves the right to change specifications without notice.
© 2012 Teledyne Isco • L-2115 • rev 11/12

Above left: Additional modules can be added for redundant or multi-stream measuring (Isco 2110 Ultrasonic Module shown).
Right: Optional mounting rings provide quick, secure sensor installation in round pipes from 6 to 80 inches (150 to 2000 mm).