Function Feature

It is used to real-time measure the three-phase voltage (or current) of power net at the same time and display in digital direct reading mode. The user can use one meter to fulfill the measuring task conducted by three common voltmeters, that is phase voltage of phase A, phase B and phase C or line voltage of phase AB, phase BC and phase AC; or to fulfill the measuring task conducted by three common ammeters, that is phase current of phase A, phase B and phase C. It can provide the real-time measuring and display functions, at the same time, it can be added of 1-channel alarm contact output function according to the actual 
demand, which is used to monitor the abnormal voltage and current in the circuit, and equipped with the corresponding alarming actuator to alert the user. It has the following features:
★  It can measure and display the three-phase voltage (or current) at the same time. 
★  PT (or CT) multiplying power can be set freely. It is easy to match any specification of mutual inductor.  
★  True RMS measuring model. 
★  The upper and lower alarming limit of voltage or current can be set freely. 
      The 3-channel alarm can use the same relay to output, and then use LED lamp to 
       indicate their alarming status. 
★  It has alarming return difference setting function. 
★  It can respectively set the delay time of generating alarm and releasing alarm. 
★  It has alarm lock function.  
★  It has alarm electricity suppression function. 

Model & Specification & Selection Table

Basic Parameter

★  Measuring range: 
       Three-phase ammeter: AC 0.05~6A, when it is more than 6A, it needs to connect a*/5A 
       or*/1A CT externally and set the display ratio
       Three-phase voltmeter: AC 25~500V, when it is more than 500V, it needs to connect a*
       /100V PT externally and set the display ratio
★  Accuracy class: 0.5
★  AC signal input frequency range: 40~70Hz  
★  Power consumption of input loop: <0.5VA / phase
★  Resolving ability: for voltage, maximum is 0.1V; for current, maximum is 0.001A; decimal point will shift automatically
★  Measuring rate: about 3 times / s
★  Auxiliary power supply: AC 220V ±10%, AC/DC 80~260V (other specifications can be customized)
★  Power consumption of auxiliary power supply: <3VA
★  Alarm contact output: the upper and lower limit of alarm adopts the same relay to output, and then use LED lamp to indicate their alarming status
★  Alarm contact capacity: AC 250V / 1A
★  Alarming upper and lower limit range: can be set freely within the measuring range
★  Working environment:temperature is -10~+50℃, humidity <85% RH,without any corrosive gas
★  Safety withstand voltage:using the AC 2kV withstand voltage test to measure between the input terminal and the power supply terminal,between the input terminal and the alarm contact terminal

Terminal Layout and Connection Identifier

Typical Connection

Order Notice

When order, please clarify the model, specification (including the measurement input specification and power supply), and quantity,
For example 1: model HP182I-7X4  AC100/5A  aux power AC220V  quantity 200pcs, which means 72X72 square size three-phase ammeter, and it's defaulted as 100/5A when out-of-factory. 
For example 2: model HP182U-9X4  AC500V  aux power AC220V  quantity 300pcs.