Cost-effective designed energy meter from Buyi Tech. provides a cost-effective solution for prepaid metering solutions in BS housing. BY100C is built as per the well-established DLMS^TM to comply with the IEC62056 standard. An optimal data flow is archived through the communication optical port.

BY100C Single Phase Smart Prepayment Energy Meter takes 20-digit STS TOKEN as the recharge medium. It is suitable for domestic consumer scenarios. The consumer recharge the meter in energy unit and the meter deducts energy unit based on consumption. The meter is built with keypad or scroll button, enabling active energy measurement and prepayment control.

The meter offers high security and detects many of the most commonly used tamper techniques. The display has large easy to read characters with information identified by OBIS. Security data can be included as part of the display sequence and read via the communication ports.

It’s flexible between post payment mode and prepayment mode, and it offers Customer Interface Unit (CIU) as an optional device to convert to split type.

The BY100C has the option of serial and optical IEC 62056-21 communications, which allows the meter registers and security data to be read electronically from a laptop or hand-held device, greatly reducing the possibility of manual meter reading errors.

The BY100C can be a simple import meter or for import/export, domestic or small-scale generation sites. An opto-isolated pulsing output can be provided as an option. The output is available via the meter auxiliary terminals.

Meter are compliant to IEC 62055-31, having an ingress protection of IP54 to IEC 60529 and comply with EMC standard IEC 50081-1.

Main Functions:

Accuracy Class 1.0 to IEC 62053-21
Standard IEC 62055-31 for STS prepayment
Unidirectional or bi-directional measurement
Option for stand-alone or split with CIU
Large digit multilingual display with OBIS information indication
Extensive security data
High security, compact design
DIN double insulated, glass filled polycarbonate case
Rate select for two rate meters, switch to neutral
IP54 in accordance with IEC 60529:1989
IEC 62056-21 optical communications and serial communications
Maximum demand, Voltage and current instrumentation values registration

Technical Specification

Item	Description	Item	Description
Network	1 Phase 2 Wires network	Starting current	I_st=0.4%I_b
Nominative standard	IEC 62052-11, IEC 62053-21 IEC 62053-24, IEC 62055-31 IEC 62055-41, IEC 62055-51 IEC 62055-52, IEC 62056-21	Reference frequency	50/60Hz +/- 5%
Accuracy class	Class 1.0 as per IEC 62053-21 Class 2.0 as per IEC 62053-23	Power consumption	Voltage circuit <1W, <2.5VA Current circuit < 0.25VA @ I_max
Reference voltage	Un=220-240V, L-N	Temperature	Operation: -40º to + 55º C Storage: -40º to + 85º C
Operating voltage	Range 70%-120%Un	Enclosure	IP54 IEC 60529:1989
Basic current	I_b=5A, 10A	Communication	Local: Optical, RS-485 CIU: Wire, RF, PLC
Maximum current	I_max up to 60A	External box open detection	Yes