74If the sensor temperature falls below thedifference between the current temperaturesetting and the low-temperature alarm tolerance,is displayed and the warning buzzersounds. When the tip temperature rises to avalue within the set tolerance, the buzzer willstop sounding.EXAMPLE:Assume that the temperature setting is 400°C/750°F andthe tolerance 50°C/100°F. If the temperature continues todecrease and fi nally falls below the value indicated belowwhile the heating element is on, the displayed value startsblinking to indicate that the tip temperature has dropped.● Soldering iron error● Heater terminal short circuiterror● Low-temperature alarmtolerance error● Sensor ErrorEXAMPLE:350ºC (400ºC – 50ºC)OR650ºF (750ºF – 100ºF)Set temperatureLow-temperature alarm toleranceLow-temperature alarm toleranceSet temperature8. ERROR MESSAGESWhen there is the possibility that a failure hasoccurred in the sensor or heater (including thesensor circuit), is displayed and the poweris shut down.NOTE:The sensor error also occurs if the tip is not insertedproperly.may be displayed for a moment when the grip isconnected. This is not an error.will flash, and the buzzer will soundcontinuously, when the tip is inserted incorrectly,an incompatible tip is inserted, or a foreignobject has found its way into the connector.will be displayed if the connector cordis not attached to the station OR the wrongsoldering iron is connected.● Detection error appears on the display when turning thepower on after connecting the MODEL FM-2022/2023 with a hot tip.This is not an error.Wait for approximately 10 seconds until themodel functions properly.日本文 中文 English