Three Phase

Ultrasonic structure with high security and protection degree. 
CTS standard protocol ensures an open and secure operating system
Optical communication, open protocol: DLMS/COSEM (E mode). 
Internal switch relay for load demand control by configuration or remote communication
Prepayment and post-payment mode switchable for users’ convenience. 
A plug-and-play communication module(GPRS/PLC/RF). 
Built-in RS485 communication. 
Measurement Instantaneous Values Power QualityDemand PrepaidEvents & AlarmsDisplay  Load Profile Anti-TamperLoad Profile (optional) BillingClockTariffs (optional) CommunicationLocal and Remote Access 
Power, Voltage, Current Under & Over voltage  Block / Slide mode 20 digit encryption token Power grid eventsLarge LCD display Load control according to power limit  threshold Main cover removal Up to 2 Megabytes of Non-Volatile memoryMaximum support 12-month billing dataAccuracy ≤ 0.5s/day (23℃)  Up to 4 tariffs 3 independent communication portsPC software / HHU 
Class1.0 accuracy Power Factor, Frequency Power downPeriod Interval configurable (typically 5, 10,  15, 30 or 60 minutes) CTS standard in BangladeshRelay control eventsBacklight (optional) Max power limit threshold programmableTerminal removal detection Over 360 Days storage (2 profile,30-minutes)Maximum support 32-days billing dataQuartz crystal time resource  Up to 8 day table Simultaneous individual operationHexing’s Central System
Three element four quadrant · Import & Export kWh Phase Angles Voltage & Current unbalanceMaximum value with time stampOpen relay automatically if credit run outAnti-tampering eventsConfigurable automatic & manual display list 
Up to two time periods programmable
Modem cover removal detectionUp to 8 profile  Automatic reset Gregorian calendar Up to 12 week tables Optical port: IEC62056-21EThird part system
Import & Export kvarh Phase sequence & Current reverseLED and Buzzer warning when Low creditStandard events OBIS codes (according to IEC62056-61)Activation time of the load allocation  
Reverse current8 captured registers per profileRemote & Local synchronization  Up to 12 season tablesOptical port sealable (optional) 
Record active energy in tariffs · Emergency CreditUp to 100 event records with time stampDisplay readable without main power Relay status indicatorBy-pass detection RWP (Read without Power) Up to 100 holiday & special days tablesHAN port: RS485 (RJ12 type) 
Unidirectional Measurement Friendly modeRelay malfunction indicatorExchangeable Lithium Battery Passive TOU Firmware upgradable 
Local and remote charge Up to 4 step tariffs Modular plug-play 2G / 3G / PLC / RF  communication units
Prepaid and Post-paid switchRemote firmware upgrade 

Smart Keypad Prepayment Meter



Description Value
Accuracy Active class 1  Reactive class 2
Voltage Reference voltage  Operating voltage range3×230/400V 70%-130%Un
Current Basic current Maximum current Starting current5A 100A <0.4%Ib
Frequency 50Hz 
Temperature Operation range Limit range for storage and transport-25℃ to +55℃ -40℃ to +75℃
Humidity Up to 95% 
Power Consumption Power consumption in voltage circuit (active) Power consumption in voltage circuit (apparent) Power consumption in current circuit≤5W ≤10VA ≤2.5 VA
Insulation Strength AC voltage test Impulse voltage test4kV during 1min 1.2/50µs mains connections 6kV
EMC Electrostatic discharges(Contact discharges) Electrostatic discharges(Air discharges) Surge immunity test Fast transient burst test Electromagnetic RF fields (80MHz to 2000MHz)8kV 15kV 4kV 4kV 10V/m(with current), 30V/m(without current)
ConnectionTerminals 8.2*8.8mm
Housing Protection degree Meter cove Meter base Terminal coverIP54 Opaque PC+ fiber glass with a transparent window Opaque PC+ fiber glass Opaque PC+ fiber glass
Display Digit size Number of digits10mm x 6mm 8
Communication Interface Optical communication RS485communication A plug-and-play communication moduleDLMS/COSEM and IDIS DLMS/COSEM and IDIS DLMS/COSEM and IDIS
Weight Net weight Approx.1.71kg(without communication module) Approx.1.77kg(+GPRS communication module)


Approx.1.77kg(+PLC communication module) Approx. 1.77kg (+RF communication module) 286.4mm×170.1mm×89.7mm (Long terminal cover)

IEC62052-11Electricity metering equipment (a.c.) General requirements, tests and test conditions – Part 11: Metering  equipment
IEC62053-21Electricity metering equipment (a.c.) Particular requirements –Part 21:Static meters for active  energy(classes 1 and 2)
IEC62053-23Electricity metering equipment (a.c.) – Particular requirements –Part 23: Static meters for reactive energy  (classes 2 and 3)
IEC62054-21 Electricity metering (AC) – Tariff and load control – Part 21: Particular requirements for time switches
IEC62055-31Electricity metering –Payment systems–Part 31: Particular requirements –Static payment meters for active  energy(classes 1 and 2)
IEC62056-46Electricity metering – Data exchange for meter reading, tariff and load control – Part 46: Data link layer using  HDLC protocol
IEC62056-47Electricity metering – Data exchange for meter reading, tariff and load control – Part 47:COSEM transport  layer for IP networks
IEC62056-53Electricity metering – Data exchange for meter reading, tariff and load control – Part 53:COSEM Application  layer
IEC62056-61Electricity metering – Data exchange for meter reading, tariff and load control – Part 61:OBIS Object  identification system
IEC62056-62 Electricity metering – Data exchange for meter reading, tariff and load control – Part 62:Interface classes
Read more: HXE330