Accurate monitoring of electrical currents within machinery can help to prevent safety hazards such as short circuits, overloading, and damage to equipment. For that reason, it is vital to carefully calibrate the current sensors and transducers, which are used to convert the flow of electric current into a form that can be understood and used by a device. When current sensors aren't calibrated correctly, the output is affected. Here’s what you need to know to keep them functioning properly.
A current sensor detects electrical current and quantifies the flow of electrons through a wire. A current transducer is similar but takes that alternating or direct electrical signal and converts it into a proportional industrial standard electrical signal usable by electrical devices.
There are different types of sensors including hair effect sensors, current transformers, Rogowski coils, and shunt resistors. There are also several key specifications and considerations to keep in mind when selecting a current sensor.
Discover more about each of these and their impact. There are key features to look for when choosing a current sensor.
Before you set up a new sensor or transducer, you need to:
Make sure to keep the instruction manual with you as you begin the setup process.
Once you're ready to install the sensor:
Following this installation, you'll need to take steps to calibrate your device.
Sensor calibration is important for:
Once a current sensor is properly installed, the next step is to calibrate it according to your product's instruction manual.
It is important to calibrate your sensor for:
Refer to your product’s specific installation guide, which you can find below information about your product on the product page. Here's what it looks like:
Now, it's time to test and validate the installation.
If everything is working well, you're finished. If not, check out some common challenges and troubleshooting options.
Now that you know the steps for how to calibrate a current sensor or how to calibrate a current transducer, here are some common challenges and tips to resolve them.
If a sensor is wired incorrectly, it may not work or may begin to overheat.
External interference can lead to noise, signal distortion, and other issues.
Grounding issues may lead to hot wires, voltage fluctuations, and ground loops.
Calibration drift, the slow change in how a gauge responds, can be caused by environmental changes, exposure to harsh conditions, and other issues.
Sensor damage signs can include corrosion, broken cabling, low voltage, and errors.
To get the most out of your sensors, it's necessary to both install and calibrate them correctly. Head to the Veris website to find the specific installation manual including the calibration instructions for the product you've purchased.