KW8M Eco-POWER METER (1A/5ACT input type)25Chapter 5 Various Functions5.1 LOCK modeIt is the mode makes all keys unable. Use when you wantto fix one of the measurement displays (For all displays).In this mode, you can not input by any keys.When you press key continuously for about 3sec.,the “LOCK” is displayed and the indicator lights. Afterabout 3 sec., “LOCK” is disappeared and the display shiftto previous display. All keys become locked (pressingthem will have no effect).Press key continuously for about 3sec. again torelease Lock mode. The “LOCK” indicator goes off andthe lock mode is released (unlocked).5.2 Display while communicationTX/RX indicator is blinking while Eco-POWER METER isunder communication.5.3 Display when pulse outputRefer to the mode 1 setting for the way to set.“OUT” indicator is lighting when pulse output.5.3.1 Output depends on integral electric powerSet the unit for pulse output (0.001/0.01/0.1/1/10/100kWh) andpulse output (transistor output) turns on every time whenintegral electric power reaches the unit. (Pulse width: about100ms)5.3.2 Instantaneous electric power alarmWhen it exceeds the setting instantaneous electric power, pulse output (transistor output) turns on inorder to notice. When it falls below, the output turns off.5.3.3 Current alarmWhen it exceeds the setting current ratio, pulse output (transistor output) turns on in order to notice.When it falls below, the output turns off.LockindicatorOUT indicatorTX/RX indicator