User manual OMRON K3MA-J

[. . . ] Process Meter K3MA-J Highly Visible LCD Display with 2-color (Red and Green) LEDs · Multi-range DC voltage/current input. · Finger protective cover (standard equipment) guards against electric shock. and Canadian requirements under the Component Recognition Program of UL. · CE marking. Model Number Structure Model Number Legend K3MA-J-@ 12 3 3. [. . . ] Failure to do so may cause unexpected operation, resulting in damage to the product or injury. Noise Prevention · Install the product as far as possible from devices that generate strong, high-frequency fields (such as high-frequency welders or sewing machines) or surges. · Install surge absorbers or noise filters on nearby devices that generate noise (particularly, motors, transformers, solenoids, magnet coils, and other devices that have a high inductance component). Line filter Power supply input !Caution Take safety measures, such as installing a separate monitoring system, to ensure safety even if the product fails. Product failure may prevent comparative outputs from being generated, resulting in serious accidents. Maintain the power supply voltage within the range specified in the specifications. Check each terminal for correct number and polarity before connecting it. Incorrect or reverse connections may damage or burn out internal components in the product. Provide a switch or circuit breaker so that operators can easily turn OFF the power supply when necessary. Do not use the product where flammable or combustible gases are present. + Process Meter Signal input Process Meter Power supply input - Surge absorber · To prevent inductive noise, separate the terminal block wiring for the product from high-voltage or high-current power lines. Do not route the wiring for the product in parallel with or tie it in a bundle with power lines. Take the following countermeasures against inductive noise in input lines. Analog Signal Inputs + Signal input Process Meter - 2-conductor shielded cable Application General Precautions 1. Do not use the product in the following locations: · Locations subject to direct radiant heat from heating equipment. · Locations subject to dust or corrosive gases (particularly sulfuric gas or ammonia gas). Do not block heat dissipation around the product, i. e. , provide sufficient space for heat dissipation. Ensure that the rated voltage is reached within two seconds after the power is turned ON. after power is turned ON for correct measurement. · When using a noise filter for the power supply, check for the voltage and current and install it as close as possible to the Process Meter. · Do not install the product near radios, television sets, or wireless devices. Doing so may cause reception interference. Increasing Service Life · Do not use the product in locations where the temperature or humidity exceeds the ratings or where condensation may occur. When installing the product in a panel, be sure that the temperature around the product (not the temperature around the panel) does not exceed the ratings. To extend the product service life, lower the temperature inside the Process Meter. · Use and store the product within the temperature and humidity ranges given in the specifications. When gang-mounting Process Meters or arranging them vertically, heat generated by the Process Meters will cause the internal temperature to rise, reducing the service life. In such cases, consider forced cooling methods, such as using a fan to circulate air around the Process Meters. [. . . ] Level display Not lit 5 Main indicator e111 e111 Error contents RAM memory error EEPROM memory error Countermeasures Repair is necessary. When this error is displayed, press the Level Key for 3 seconds, and the settings will be restored to the factory settings. Consult your OMRON sales representative. Not lit Flashes s. err You will see this indication when turning ON the At the initial setting level, set the input type and other paproduct the first time after purchase. cause the input signal value is 0 mA at that time even though the range is factory set to 4 to 20 mA. [. . . ]