Applications

The HWM091 series are front panel mounted single phase two wire electronic prepayment active energy meters, recently researched and developed by us. With IC card as the medium for purchasing credit, they centralize many functions together, like electricity metering, load control, consumption information management, and so on. Their technical performances completely conform to International Standards IEC 62053–21 for Class 1 single phase active energy meter.

They can accurately measure the load active energy consumption in the single phase AC networks of rated frequency 50Hz or 60Hz and used indoors or in the meter box outdoors. The HWM091 series have multiple configurations for option, to be suitable with the various marketdemands. They have features with excellent long-term reliability, small volume, light weight, perfect appearance, easy installation, etc.

Functions and features

◆ Front panel mounted in 3 points for fixing. the appearance and dimensions are in accordance with Standards BS 7856 and DIN 43857.6 digits LED or 7 digits LCD display for option, Can select one meter with one card and the card can be reloadable via the computer with an IC card programmer.

◆ Can select the meter suitable for both reloadable IC card and disposable IC card. To load, please let both IC card programmer and the computer on line. It is also available to load via the separate offine IC card programmer.

◆ Can select the inside far infrared communication module and RS485 communication module, for reading meter, remote control credit and system parameter setting. Keypad IC card programmer and universal IC card programmer for option.

◆ IC card is with data encryption and anti-fake protection.

◆ Prepayment mode is by kWh. Another mode by credit is for option when ordering.

◆ Standard configuration of prepayment management system software is a single computer version. Network version is for option when ordering.

◆ Have the functions of load control, automatic detection and indication of fault. Standard configuration is without the detection function of opening terminal cover. When ordering. you can add the function: while opening terminal cover, the power will be cut.

◆ Equipped with a polarity passive energy impulse output terminal, conforming to Standards IEC 62053-31 and DIN 43864.

◆ LEDs indicate separately the power state (green), the energy impulse signal (red), load current flow direction (yellow).

◆ Automatic detection for the load current flow direction, yellow LED lighting means reverse current flow,

◆ Measure the active energy consumption in one direction on single phase two wire, which is not related with the load current flow direction at all, complying with Standards IEC 62053-21.

◆ Direct connection. Two types of connections: type 1A and type 1B for option.

◆ Can select the extended terminal cover or short terminal cover.