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Itracker Flow Meter Sizing: Battery-Powered Portable Area Velocity Sensors for Smart Sewer Logging
Quick Answer: For smart sewer logging, select a battery-powered portable area velocity flow meter with a pressure level sensor and a Doppler velocity sensor. Itracker meters from Silver Automation Instruments cover partially filled pipes from DN100 to DN3000 and log data for up to 18 months. Send your pipe diameter, flow range, and installation site details for a specific model quote.
Why Area Velocity Works for Sewer Flow
Sewer pipes rarely run full. A standard electromagnetic flow meter needs a full pipe. Area velocity sensors measure flow in open channels or partially filled pipes. They use two signals. One signal measures velocity. One signal measures liquid level. The meter calculates flow from area times velocity. This method is practical for municipal wastewater and stormwater networks. In practice, most engineers skip full pipe assumptions for sewer work because flow depth changes every hour.
Battery and Logging Specs That Matter
A sewer logger must survive wet conditions and long campaigns. The Itracker portable series uses a sealed battery pack. Battery life reaches 18 months at a 15 minute logging interval. Memory stores 2 million data points. That is enough for six months of continuous data at one minute intervals. The sensor housing has an IP68 rating. It works at pipe depths up to 5 meters and velocity from 0.02 m/s to 6 m/s. Level accuracy is ±2 mm. Velocity accuracy is ±2 percent of reading. These numbers matter for billing and compliance reports. We have seen this on customer sites many times where a cheaper logger lost data after two weeks.
Itracker Sizing for Partially Filled Pipes
Sizing starts with pipe diameter and expected flow range. Measure the internal diameter in millimeters. For a DN300 sewer pipe, an Itracker AT-700 sensor covers 0 to 400 m3/h. For a DN1000 trunk line, you need a longer range sensor for velocity and level. Most applications stay within a velocity of 0.05 to 4 m/s. Do not oversize the sensor. A large velocity range with low flow can create noisy data. We recommend a sensor with a low flow cutoff of 0.02 m/s for night flow measurements. This is the part where many people make errors. They select a flow meter for peak storm flow and ignore dry weather flow.
Common Sewer Applications in Southeast Asia and Latin America
We supply Itracker area velocity meters to water utilities in Vietnam, Indonesia, Mexico, and Colombia. A common use is inflow and infiltration studies. The meter logs flow for two weeks at manhole locations. Another use is industrial discharge monitoring from food processing plants. A seafood processor in Vietnam used an Itracker meter to record wastewater flow before a new treatment tank. The data showed peak flow at 2.4 m3/h and allowed the plant to downsize a pump. That saved the customer about 1800 USD. A municipal uti
Recommended Itracker Models and Parameter Pairing
Silver Automation Instruments offers three portable Itracker configurations for sewer logging. The IT-100 is a basic unit for spot checks. The IT-500 adds a built-in pressure level sensor and Modbus RS485 output. The IT-700 is the full logging kit with battery, IP68 sensor, and USB or Bluetooth data export. Parameter pairing for a typical DN400 sewer line: velocity range 0.02 to 5 m/s, level range 0 to 3 m, temperature -5 to 50 °C, output 4-20 mA plus pulse, logging interval 5 minutes. We often match the IT-700 with a rain gauge for combined sewer overflow studies.
Installation Notes from Field Work
Mount the sensor on the pipe invert. Use a stainless steel ring or a mounting plate. Keep the velocity sensor face clean. In high fat or grease lines, schedule cleaning every two weeks. Most engineers skip this part and then see drift after one month. The pressure sensor port needs a vent tube to atmosphere. Do not kink the cable. For battery replacement, open the housing only in a dry area. We have seen water enter the logger because a field crew opened the case during rain. That is avoidable with a simple cover.
FAQ on Itracker Sewer Flow Meter Sizing
What pipe sizes can the Itracker area velocity meter cover?
The standard sensor covers DN100 to DN3000. For small channels below DN100, contact Silver Instruments for a custom mount.
How long does the battery last in continuous logging?
At a 15 minute interval, the battery lasts 18 months. At a one minute interval, expect about 3 months. Temperature and sensor cleaning affect battery life.
Can the meter measure flow in a full pipe under pressure?
No. Area velocity sensors are for open channels and partially filled pipes. For full pipe flow, use an electromagnetic flow meter or a clamp on ultrasonic meter from Silver Automation Instruments.
What data output options are available for Itracker?
Standard outputs include Modbus RS485, 4-20 mA, and a pulse output. The IT-700 adds Bluetooth and USB export to a CSV file. We can also supply a cellular modem for remote sewer logging.
How do I get a sizing recommendation for my sewer line?
Send your pipe inside diameter in mm, the normal and maximum flow rate in m3/h, liquid type, and installation country. We will reply with a model, sensor range, and price.
Get a Specific Itracker Quote
For Itracker flow meter sizing and a formal quote, send your pipe diameter (DN), flow range (m3/h), battery life requirement, and data output type. Tel: +86-25-68650347. Whatsapp: +86-25-52155837. WeChat: +86 15365082610. Silver Automation Instruments serves industrial customers in Southeast Asia, Oceania, Latin America, Africa, and the Middle East.
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