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4210 Flow Meter
Ultrasonic level
measurement - non-contacting sensor means no scheduled maintenance.
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if you would like to purchase an ISCO 4210 Flow Meter Online
 The
4210 Ultrasonic Flow Meter provides non-contact sensing of the flow over a weir
or in a flume. The ultrasonic sensor is mounted above the flow stream, and
transmits a sound pulse that is reflected by the surface of the flow. The
elapsed time between sending a pulse and receiving an echo determines the level
in the channel. Automatic compensation for air temperature ensures measurement
accuracy.
Because its sensor does not contact the liquid, the 4210 provides long-term
dependability with no scheduled maintenance. The Isco 4210 is not affected by
chemicals or high concentrations of grease, suspended solids or silt in the
flow.
You can retrieve stored data on-site with a laptop PC or an Isco 581 Rapid
Transfer Device, or remotely via telephone using an optional modem. Isco
Flowlink Software produces a variety of informative graphs and reports from
stored data.
Standard Features
- Built-in flow conversions for most applications, including Manning
formula, data points, or equation for special situations.
- Two-line x 80-character backlit LCD.
- Built-in dot matrix printer gives you an accurate, on-site printout
- Internal memory stores over 2 months of flow, rainfall, parameter, and
sample data at 15 minute intervals.
- Automatic gain adjustment in response to echo strength - maximizes
performance in the presence of steam, foam, and turbulence.
- Variable Blanking Distance eliminates false echo problems caused by
obstructions such as manhole rungs.
- Interfacing for Sampler activation, connection to multiparameter water
quality sonde, alarm outputs
Applications
- Portable and fixed-site flow measurement with weirs and flumes
- Pretreatment Compliance
- Stormwater Runoff Monitoring
- Permit Enforcement
- Sewer Flow Monitoring
- Combined Sewer Overflow Studies
- Wastewater Treatment Plant Operations
- Inflow and Infiltration Studies
- River and Stream Gauging
Options and Accessories
- Optional telephone modem - provides remote data retrieval, voice
messaging, and dial-out alarm conditions
- Analog Outputs - up to 3 isolated internal 4-20 mA outputs
- Non-resettable totalizer
- 674 Rain Gauge
- 581 RTD data retrieval device downloads up to 20 meters
- 270 DO module adds dissolved oxygen measurement/logging
- 201 pH module adds pH and temperature measurement/logging
- YSI 600 Multi-Parameter Water Quality Monitor
- Suspension equipment (to hang flowmeter in manhole)
Specifications
| Size (H x W x
D): |
17.0 x 11.5 x
10.5 in. (43 x 29 x 26.7 cm) (without power source) |
| Weight: |
17.3 lbs (7.8
kg) (without power source) |
| Material: |
High-impact
molded polystyrene structural foam |
| Enclosure: |
NEMA 4X (iP65) |
| Power: |
12 to 14V DC, 24
mA average at 12.5V DC |
| Typical
Battery Life (printer set at 1 in/hr, 1 minute level reading interval) |
| 934 NiCad
Battery: |
7 to 8 days |
| 946 Lead-Acid
Battery: |
10 to 12 days |
| 948 Lead-Acid
Battery: |
2 to 2½ months |
| Program Memory: |
Non-volatile,
programmable flash. Updateable without opening enclosure. |
| Display: |
Backlit LCD,
2-line, 80-character (5.5 mm high x 3.2 mm wide) |
| Level-to-Flow
Rate Conversions |
| Weirs: |
V-notch,
rectangular with and without end contractions, Cipolletti |
| Flumes: |
Parshall,
Palmer-Bowlus, Leopold-Lagco,Trapezoidal, H, HS, HL |
| Manning Formula: |
Round,
U-channel, rectangular, trapezoidal Data Points Four sets of 50
level-flow rate points Equation Two-term polynomial |
| Totalizers |
| LCD: |
9-digit,
floating decimal point, resettable |
| Mechanical
(optional): |
7-digit, non-resettable |
| Inputs
and outputs |
| Rain Gauge
Input: |
Contact closure,
normally open. Resolution 0.01 or 0.004 in ( 0.25 or 0.1 mm) |
| Parameter
Inputs: |
pH, dissolved
oxygen, conductivity, and temperature (with optional YSI 600 sonde); pH
and temperature (with optional Isco 201 Parameter Module); or dissolved
oxygen and temperature (with optional Isco 270 Parameter Module) |
| Sampler
Activation Conditions: |
Enabled,
disabled, AND and OR combinations of any two of level, flow rate,
rainfall, pH, DO, conductivity, and temperature |
| Sampler Pacing
Output: |
12V pulse |
| Sampler Input: |
Event mark,
bottle number |
| Printer |
| Recording Modes: |
Up to 3 graphs
of level, flow rate, pH, DO, conductivity, and temperature vs time;
includes totalized flow. Rainfall and sampler events (time and bottle
number) are also recorded |
| Speed: |
Off, 0.5, 1, 2,
4 in/hr (1.25, 2.5, 5, 10 cm/hr) |
| Recording Span: |
User selectable
with multiple over-ranges |
| Resolution: |
1/240 of
recording span |
| Reports Printed: |
Flow meter
program, 2 independent time interval reports, flow meter history,
sampler history |
| Interval Report
Contents: |
Site number;
time interval; total flow; minimum, maximum, and average flow rate,
level, pH, DO, conductivity, and temperature, and time of occurrence;
interval flow; total rainfall; number of samples, flow meter history and
sampler history |
| Character Size (HxW): |
0.09 x 0.07 in
(2.4 x 1.7 mm) |
| Paper: |
4.5 in. wide x
65 ft. (11.4 cm x 19.8 m), plain white paper, replaceable roll |
| Ribbon: |
19.7 ft. (6.0 m)
black nylon, replaceable |
| Data
Storage Memory |
| Capacity: |
80,000 bytes
(approx. 40,000 readings) divided into a maximum of 12 memory
partitions. Equal to 100 days of level, rainfall, pH, DO, conductivity,
and temperature readings at 15 minute intervals, plus 3,000 sample
events. Optional expansion to 473,000 bytes (approx 236,500 readings) |
| Setup and Data
Retrieval: |
IBM PC or
compatible computer with Isco Flowlink 4 for Windows |
| Communication: |
Direct
connection, optional internal 2400 baud telephone modem with voice
messaging |
| Data Retrieval
(optional): |
Isco 581 Rapid
Transfer Device (RTD) |
| Voice Messaging
(with optional internal modem): |
Calls up to 5
telephone numbers with programmable delay between calls, activated based
on AND and OR combinations telephone of any two of level, flow rate,
rainfall, pH, DO, conductivity, and temperature |
| Analog Outputs: |
(optional) Up to
3 isolated internal outputs, 0 to 20 mA or 4 to 20 mA, scaleable based
on level, flow rate, pH, DO, conductivity, or temperature, into a
maximum of 750 ohms each |
| Relay Outputs: |
2 form C relays
with field selectable trip points based on flow rate (with optional
High/Low Alarm Relays) |
| Serial Output: |
Current status
and readings, in response to command or automatically at selectable time
intervals, ASCII comma separated values at 1200, 2400, 4800, or 9600
baud |
| Storage
Temperature: |
-40° to 140°F
(-40° to 60°C) |
| Operating
Temperature: |
0° to 140°F
(-18° to 60°C) |
| Ultrasonic
Sensor |
| Length x
diameter: |
6.9 x 3.6 in
(17.5 x 9.1 cm) |
| Cable
Lengthxdiameter: |
25 ft x 0.3 in
(7.6 m x 0.8 cm) |
| Weight (incl
cable): |
2.6 lbs (1.2 kg) |
| Enclosure: |
NEMA 4X, 6; IP67 |
| Frequency: |
40 kHz |
| Range (distance
from sensor to liquid): |
Minimum 2 ft
(0.6 m); Maximum 12 ft (3.7 m) |
| Span: |
0 to 10 ft (0 to
3 m) |
| Blanking
Distance: |
2 to 12 ft. (0.6
to 3.7 m) |
| Level
Measurement Accuracy - at 22°C (72°F), still air, 40 to 70% humidity.
Head change is actual change in vertical distance from ultrasonic sensor
to liquid surface) |
| for head change
<1.0 ft (<0.31 m): |
maximum error is
±0.02 ft. (±0.006 m) |
| for head change
of 1.0 to 10 ft (0.31 to 3.05 m): |
maximum error is
±0.03 ft. (±0.009 m) |
| Temperature
Coefficient: |
Maximum error
over compensated temperature range (per degree of temperature change) ±0.000047
x D per °F (±0.000085 x D per °C) where D is the distance from the
transducer to the liquid surface |
| Operating
Temperature: |
-22° to 140°F
(-30° to 60°C) |
| Compensated
Temperature: |
-22° to 140°F
(-30° to 60°C) |
| Materials: |
Sensor housing
is Xenoy 6120; Cable jacket is Polyvinyl chloride (PVC) |
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