Infrared Thermometer Application-Electrical System Fault Diagnosis

　　Tools for Diagnosing and Preventing Electrical System and Equipment Failures

　　Infrared thermometers are proven to be money-saving diagnostic and preventive tools during electrical system and equipment maintenance inspections. Raytek's full line of long-range infrared thermometers are accurate to 1-4% of reading and can measure from up to 180 feet away, depending on the model. These instruments are lightweight and feature a rough, non-slip surface for ease of use.

　　Measuring Electrical Equipment

　　Non-contact infrared thermometers can measure the surface temperature of an object from a safe distance, making them an indispensable tool in electrical equipment maintenance operations.

　　Electrical Equipment Applications

　　Raytek infrared thermometers can effectively prevent equipment failures and unplanned power outages in the following applications.

　　Connectors - Electrical connections can gradually loosen connectors, generate heat due to repeated heating (expansion) and cooling (contraction), or surface dirt, carbon deposits and corrosion. Non-contact thermometers can quickly identify temperature rises that indicate serious problems.

　　Motors - To maintain the life of the motor, check that the power connection and circuit breaker (or fuse) are at the same temperature.

　　Motor Bearings - Check for hot spots and repair or replace them regularly before problems cause equipment failure.

　　Motor Coil Insulation - Extend the life of motor coil insulation by measuring its temperature. Phase-

　　to-Phase Measurement - Check that the wires and connectors of induction motors, large computers and other equipment are at the same temperature between phases.

　　Transformers - Windings of air-cooled devices can be directly measured with an infrared thermometer to check for excessive temperatures. Any hot spots indicate transformer winding damage.

　　Uninterruptible Power Supplies - Determine the hot spots of the connecting wires on the UPS output filter. A cold spot indicates that the DC filter circuit may be open. Backup

　　Batteries - Check low-voltage batteries to ensure that they are connected correctly. Poor contact with the battery terminals may heat up enough to burn the battery core.

　　Ballasts - Check for overheating in ballasts before they start to smoke.

　　Utilities - Determine hot spots in connectors, wire connections, transformers and other equipment. Some Raytek optical instruments have a range of 60:1 or even greater, making almost any measurement target within the measurement range.