When should I change the batteries in my Emaux 8552 ORP Meter

[DeStephen]

To ensure your Emaux 8552 ORP Meter functions correctly, it's important to know when to replace the batteries. According to the user manual, you should check the battery status under these circumstances: First-time use, when the battery symbol appears on the LCD display, or if the meter fails to power on. To replace the batteries, first power off the meter. Next, unscrew the battery cover counter-clockwise, carefully retaining the black washer. Remove the old batteries and insert four new LR44 button cells, ensuring correct polarity. Finally, reattach the battery cover and washer, tightening it clockwise. For extended non-use (a month or longer), remove the batteries to prevent potential damage. Following these steps will help maintain the accuracy and longevity of your Emaux 8552 ORP Meter.