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2. Safety Instruction These instructions are intended to ensure that user can use the product correctly to avoid danger or property loss. The device can only be operated by trained personnel in accordance with these instructions and local safety regulations. Electrical Safety ...
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Storage For long-term storage of the device, please note the following: The device should be stored in the original packaging. The place of storage should be dry, vibration-free and at a suitable ambient temperature. Transportation Handle all parts carefully to prevent damage and transport the device in the original box to the place of installation.
3. Overview An electromagnetic flowmeter (hereafter referred to as “device”) is to measure the flow of conductive liquid in a circular pipe. The principle of operation is based on Faraday's electromagnetic induction law: When a conductor moves in a magnetic field and cuts a magnetic line, the conductor ends produce induction electromotive force perpendicular to the direction of motion and the magnetic field, which is proportional to the conductor's speed of motion (V), i.e.
4. Appearance 4.1 Device Appearance The electromagnetic flowmeter consists of a sensor and a transmitter. According to the way the sensor is connected to the transmitter, the device is divided into compact electromagnetic flowmeter and remote electromagnetic flowmeter. 4.1.1 Compact Electromagnetic Flowmeter The transmitter of the compact electromagnetic flowmeter is integrated with the sensor and the internal electrical connection is made at the factory.
4.1.2 Remote Electromagnetic Flowmeter The transmitter and sensor of remote electromagnetic flowmeter are installed independently with a dedicated signal cable connecting the two components. Depending on the connection form of the sensor to the pipe, the device can be divided into flange, wafer, clamp etc. Figure 4-2 Remote Electromagnetic Flowmeter Appearance...
4.2 Sensor and Transmitter Appearance 4.2.1 Sensor The sensor consists of measuring tubes with insulated liners, coils, electrodes and enclosures. Note The basic components of flange, wafer and clamp sensors are similar with each other. This section illustrates the appearance of a flanged sensor as an example. Figure 4-3 Sensor Appearance 4.2.2 Transmitter Figure 4-4 Transmitter Appearance...
5. Installation Caution There should be sufficient operating space around the device installation location for easy maintenance. Avoid areas that are prone to lightning strikes or that may be flooded and rain-fed. Avoid the installation in the environment of overheating, direct sunlight and corrosion.
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Figure 5-2 Extended Straight Pipe A reducing pipe with a taper less than 15° is considered a straight pipe when installed in the upstream and downstream of the measurement tube. Figure 5-3 Reducing Pipe The sensor should be installed in a section filled with medium. Under partially filled pipe conditions, the device will exhibit large fluctuations in the displayed values and cause severe measurement errors.
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Make sure that no air bubbles are created or accumulated in the location where the measuring tube is installed. If air bubbles enter the measuring tube of the sensor, they will cause significant fluctuations in the readings and cause severe measurement errors.
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Figure 5-9 Fluid Conductivity Should Remain Stable Caution If there are chemical substances injected upstream, the fluid conductivity may fluctuate significantly, affecting the device's normal operation. To avoid this, it is recommended to change the injection port of the chemical material to the downstream side of the device.
5.1.2 Sensor Installation Requirement Pipes should be welded before installing the device. No electrical welding is allowed after installing the device. After the device is installed, the device power should be disconnected first if other parts of the pipe need welding construction. ...
Caution The electrode shown in the upper right image is located on the top of the measuring tube, and air bubbles escaping from the medium will cause the electrode to be isolated from the medium for a short period of time, making the measurement unstable and causing serious errors.
Figure 5-15 Clamp-on Flowmeter Installation Caution The bolts should be tightened alternately and gradually, do not tighten the opposite bolt while any bolt is still loose. Do not over-tighten the bolt during initial installation. It is recommended to re- tighten after 24 hours.
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Figure 5-16 Mounting Bracket Can Be Fixed to Round Tube (Left) or Wall Mounted (Right) Figure 5-17 The Transmitter Is Secured to the Bracket with a Nut...
6. More Operations For a detailed explanation of the device installation, commissioning and configuration, scan the QR code below: Note The document is aimed at those who work with the device over the entire life cycle and perform specific configurations. 7.
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Warning: This is a class A product. In a domestic environment this product may cause radio interference, in which case, the user may be required to take adequate measures. Directive 2012/19/EU (WEEE Directive): Products marked with this symbol cannot be disposed of as unsorted municipal waste in the European Union.
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