Battery Powered

The Data Industrial SDI Series impeller flow sensor offers unparalleled performance for liquid flow measurement in closed pipe systems in an easy to install economical package. Impeller sensors offer a quick response to changes in flow rate and are well suited to flow control and batch type applications in addition to flow monitoring. The new four-bladed impeller design is rugged, non-fouling and does not require custom calibration.

The battery powered versions are a complete flow measuring system providing a programmable display of rate, total or both powered by a “C” sized lithium battery. Options include a scalable pulse output and a data logger.

Hot Tap Sensors
Hot tap sensors feature an isolation valve and mounting hardware to install or remove the sensor from a pipeline that would be difficult to shut down or drain. In a true “hot tap” installation the sensor is mounted in the pipe under pressure by attaching a service saddle or weld-on fitting to the pipe and mounting the isolating valve to the threaded connection. A hole is then cut in the wall of the pipe through the valve using a commercial tapping machine with a 1” size cutter. Once the hole is cut, the tapping machine is removed and the valve is shut. Then the sensor assembly is mounted to the isolation valve and extended into the pipeline to measure flow. Even in new construction a hot tap sensor may be appropriate for service considerations. The Data Industrial hot tap sensor is constructed of 316 Stainless Steel and is rated for service to 1000 psi and 180° F. The sensor installs in a 1” NPT tap for both wet and dry installations. The small stem diameter allows the sensor to be inserted into the pressurized pipeline by hand without the need for an installation tool. The mounting hardware holds the sensor firmly in place at the correct depth and alignment.

Insert Sensors
SDI insert style flow sensors are intended for general flow measurement applications. They are available in either brass or stainless steel construction. The insert style sensors are intended for direct installation into pipelines through a 1” tap. The pipeline must be out of service and not under pressure at the time of installation. For any pipeline that is in service at the time of installation or cannot be de-pressurized and drained for service, Data Industrial recommends the use of our SDI hot tap models that are equipped with isolation valves.

Standard sensor stem lengths accommodate pipe sizes from 1½” through 10” in diameter or 12” through 36” depending on pipe material and tapping methods. Larger sizes usually require the use of hot tap models.

When the flow sensor is installed at the correct insertion depth and properly aligned, in pipe sections with at least 10 diameters of straight pipe upstream of the sensor and 5 diameters of straight pipe downstream, accuracies of +/-1 % of rate may be achieved.

Output Configuration
The scaled pulse is produced by an on-board micro-controller for precise, accurate outputs. This option may be programmed to produce a transistor closure scaled to any number of engineering units of measure. Sensors may be pre-programmed at the factory or field programmed using a Data Industrial A-303 connection cable and a Windows® based software program. All information is stored in non-volatile memory in the flow sensor.