Product Overview 
 HS302-Series multifunction power monitoring instrument to measure current, voltage, active power, reactive power, harmonics, power and other power parameters. The instrument has a powerful extension of accessibility, 31 times harmonic analysis, clock and event log, the more alarm, multi-rate statistics, 4 digital inputs / 4 relay outputs, 5-way temperature and humidity monitoring, can the overvoltage, undervoltage, overcurrent, overclocking records off the alarm / protection and related events can be statistical month year average temperature and humidity and record the sun and the moon of maximum temperature and time functions. 

 Performance characteristics 
 ◆ Suitable for various voltage levels to meet the high school low-voltage network monitoring needs. 
 ◆ centralized telemetry, remote control, remote features and integration. 
 ◆ RS485, 433M wireless, SMS, Ethernet and other communication interface modular design, can be flexibly configured according to customer demand. 
 ◆ the MODBUS-RTU protocol, DL / T 645, the optional the IEC1107 multiple communication protocols. 
 ◆ to provide up to 31 times harmonic analysis. 
 ◆ given value the more limited function. 
 ◆ multi-rate statistics. 
 ◆ event logging functions. 
 ◆ arbitrary set of CT, PT ratio. 
 ◆ active, reactive energy can be positive, anti be measured separately. 
 ◆ Up to 4 relay outputs can be applied to the reactive power switching. 
 ◆ Statistics sun and the moon month year high temperature and humidity of the average temperature and humidity and can record the time. 
 ◆ LCD. 

 Technical indicators 
 ◆ connection mode: three-phase three-wire, three-phase four-wire 
 ◆ Input rated voltage: AC100V/57.7V AC380V/220V 
 ◆ Input rated current: 1A or 5A 
 ◆ Accuracy: 0.5 
 ◆ relay output: AC220V/5A DC30V/5A 
 ◆ Working power: AC/DC220V 
 ◆ Dielectric Strength: 2KV 
 ◆ Insulation resistance: ≥ 50MΩ 
 ◆ Working temperature: -35 ° C to +70 ° C 
 ◆ Storage Temperature: -40 ° C to +70 ° C 

 HS302-Series multifunction power monitoring instrument type definition: 
 ① Product Model code: HS302A, HS302B, HS302C, HS302D optional. 
 ② switch Quantity: I1, said one-way switch, this feature is omitted this. 
 ③ Number of relay outputs: R1 said 1 relay output, this feature is omitted this. 
 The ④ environmental temperature and humidity configuration Quantity: TH1 that access all the way temperature and humidity measurement capabilities, this feature is omitted this. 
 The ⑤ said communication Type: S1 represents the RS485 bus, S2, said the 433M wireless communications, S3, SMS, communications function