Features:Measurement of electrical parameters: AC voltage/ current/ active power/ frequency/ power factor/ energy,6 in 1.Power zero-clearing mode: key zero-clearing, automatic zero-clearing.Display Type: LCD display, blue backlight;-Multi-screen display, "7 kinds of display modes" optional.Blue backlight brightness adjustable: highlight, low light, not bright.The voltage, current error and other options can be calibrated by the button itself.Displays updated values for different working environments.display accuracy can be set:3-bit,4-bit; applicable to different requirements power down data saving function.The AC voltage, current, power and electric energy are all designed by automatic shift of decimal point has the functions of voltage, current, power upper and lower limit alarm and timeout alarm, besides the buzzer alarm, there is the optical coupling alarm output control function.Specification:Measurement rangeACV130-500V; ACA0-100AResolutionWhen the voltage is less than 100V, the resolution is 0.01 V; when the voltage is greater than 100V, the resolution is 0.1VThe resolution of current less than 10A is 0.001 A;Over 10A, the resolution is 0.01 AMeasurement accuracy0.5% 2 digitsMeasurement speedabout 2 times per secondActive power0-9999 KWFrequency45.00-65.00 HzPower Factor0.000-1.000Power0.000-9999 KWhOperating temperature-10 ~ + 50 Working humidity10 ~ 80% (without condensation)Working pressure80 ~ 106 kPaPackage List:1 * Multi-function intelligent watch head1 * Mutual inductance coilNote:As different computers display colors differently, the color of the actual item may vary slightly from the above images.Operation Setting Manual:CodeNmaeDescription1-CUCalibrate VoltageCalibration voltage error2-CACalivrate CurrentCalibration current error3-SPDisplay SpeedS: Standard speed update display valueL: Slow update display valueF: Fast update display value4-EnPower OptionREA: ResumptionAfter the power, if there is no electricity generation, will always show the power before the power supply accumulated;When the power generation, the display screen flash two times, before the power cut down the accumulated energy value will be automatically zero, and from the beginning of the accumulation;CLE: Accumulated electric power manual zero clearingACC: After the power on, the accumulated electric energy value will not automatically clear the zero, has been accumulated5-tyAlarm TypeS: Semi-automatic, as long as the alarm start, regardless of the value after the start of no change, will always alarm, unless someone for any key to remove the alarm will stopA: Full automatic, when the alarm start-up value back within the scope, will automatically remove the alarm6-oUOver Voltage ValueSet voltage alarm upper limit7-LUVoltage FloorSet Voltage Alarm Lower Limit8-oAOver Current ValueSet current alarm upper limit9-LACurrent FloorSet Current Alarm Lower LimitA-oPOver Power ValueSet power alarm upper limitb-LPPower FloorSet Power Alarm Lower LimitC-otOver Time AlarmCountdown alarm function,00:00-99 hours 59 minutes;Time-out alarm and upper and lower limits alarm can only be double-checkedd-onDefault Optical coupling stateH: No start alarm time coupling output for high-level, that is, open-circuit state, post-start output low-levelL: No start alarm time coupling output for low level, that is, short circuit state, post start output high levelE-StStarting Delay0-9999 seconds, instrument never alarm state to alarm state switch output delay time;This start-up alarm will be ignored when the alarm duration is <E-Stn-EtEnd Delay0-9999 seconds, the instrument from the alarm state to the unalarm state to switch the output delay time;When the release alarm duration is <n-Et, the release alarm will be ignoredF-dSSetting Display Digits4: Voltage, current, frequency, power factor display 4 digit3: Voltage, current, frequency, power factor display 3 digitH-rSFactory Data ResetN: Do not restore factory valueY: All settings restore factory value