Residential
Society-wide sub-metering with per-flat DLMS reads and monthly automated billing.
Smart Meter
Single Phase Smart Meter
Class 1.0 single-phase DLMS smart meter engineered to IS 16444 and IEC 62053-21 — tamper detection, load profile with PLC / RF / GPRS / NBIoT communications for residential and sub-metering deployments.
Measurement
Single Phase, 2 Wire
Accuracy
Class 1.0
Communication
DLMS / RF /Cellular / RS485
Standards
IS 16444
◆Overview
The Elsource Single Phase Smart Meter is a Class 1.0, DLMS/COSEM-compliant static energy meter engineered for accurate revenue-grade measurement in residential, small commercial and light industrial supply points. It is designed to align with IS 16444 for AC static direct-connected watt-hour smart meters and IS 13779 for accuracy performance.
Built around a low-drift energy metering IC and a hardened front end, the meter delivers stable measurement across the 240 V ±20% Indian LT supply band with a 10–60 A direct-connected current range. An integrated LCD presents multi-parameter data — instantaneous voltage, current, power, energy registers and tamper flags — while DLMS/COSEM communication over PLC / RF / GPRS / NBIoT communications options supports data exchange with utility head-end and MDM platforms.
For utilities and sub-metering operators, the meter contributes to reduced AT&C losses, improved billing accuracy and remote visibility of the last-mile consumer. For consumers and facility managers, it delivers a transparent, auditable record of consumption that can be integrated into Elsource's EMS and tenant billing platforms.
◆Key capabilities
What sets this smart meter apart on the panel.
Revenue-grade accuracy
Class 1.0 active energy measurement per IS 13779 and IEC 62053-21 across the specified voltage and current range.
DLMS/COSEM data exchange
Standards-compliant OBIS objects and associations for direct integration with head-end and MDM systems.
Load profile & event log
Configurable load survey and non-volatile event logging capture tamper, power fail and configuration changes for audit.
Tamper detection and Anti-tamper compliance
Magnet, NM, ND, reverse-current, cover-open, power outage, relay connect/disconnect and other events, are lagged with time stamps for revenue generation. Meter is complied with required anti-tamper features.
LCD multi-parameter display
Scrollable display for kWh, instantaneous parameters, phase status and event flags.
Non-volatile memory
Retains billing data, load survey and event log through outages without operator intervention.
◆Technical specifications
Numbers that match the datasheet.
Every parameter below is aligned with the standards this meter is engineered against. Request the full specification sheet for OBIS codes, register maps and wiring diagrams.
| Measurement Type | Single Phase, 2 Wire |
|---|---|
| Accuracy Class | Class 1.0 |
| Voltage Range | 240 V ±20% |
| Current Range | 10–60 A |
| Communication | DLMS / RF /Cellular / RS485 |
| Protocol | DLMS/COSEM |
| Display | LCD, multi-parameter indication |
| Security | Tamper detection & event logging |
| Recording | Load profile & event logging |
Parameters measured
- Active energy (kWh) — import & export registers
- Instantaneous voltage (V) and current (A)
- Active power (kW) and power factor
- Frequency (Hz)
- Cumulative maximum demand
- Tamper & event flags with time stamps
Communication
- RS485 serial port
- RF/Cellular communication for remote reading and programming
- DLMS/COSEM application layer (IS 15959 / IEC 62056)
- Optical port for on-site programming and reading
Security & tamper
- Cover-open and terminal-cover event logging
- Magnetic and external influence detection
- Reverse-current and neutral-missing detection
- Time-stamped event log with sequence numbers
- Neutral disturbance, Relay connect/disconnect event detection
Installation
- Direct-connected, single-phase two-wire
- Wall-mount enclosure suitable for LT service positions
- Sealed terminal cover for tamper evidence
Operating temperature
-10 °C to +60 °C
Storage temperature
-25 °C to +70 °C
Humidity
0–95% RH (non-condensing)
Ingress protection
IP51 (as per standard)
◆Where it's deployed
Field-proven across the sectors that need accuracy.
A cross-section of the deployments this meter is engineered for. Talk to us about your specific site.
Commercial
Small retail outlets and offices requiring accurate consumption records for tariff reconciliation.
Light industrial
Individual shop or workshop metering feeding into a plant-level EMS.
Utility AMI
Last-mile consumer metering with head-end integration over PLC / RF / GPRS / NBIoT.
◆Works with
Standards-first. Integrates in days, not months.
Elsource meters ship with the protocols and register maps that head-end, SCADA, BMS and EMS platforms already understand — so the integration effort stays measured.
- Elsource On-Premises & Cloud EMS
- Elsource Tenant Billing platform
- Third-party DLMS head-end and MDM systems
- SCADA and BMS via RS485 / DLMS gateways
◆FAQ
Questions engineers actually ask.
Is the meter DLMS/COSEM certified?
The meter is engineered against IS 15959 / IEC 62056 DLMS/COSEM data exchange and exposes standard OBIS codes for integration with utility head-end and MDM systems.
What accuracy class does it belong to?
The meter is Class 1.0 for active energy, aligned with IS 13779 and IEC 62053-21 for AC static watt-hour meters.
Can it be integrated with an existing EMS?
Yes. It exposes DLMS OBIS objects over PLC / RF / GPRS / NBIoT and integrates cleanly with Elsource EMS as well as third-party head-ends, SCADA and BMS via standard gateways.
What tamper events are captured?
Cover-open, magnetic influence, reverse current, neutral missing and configuration change events are captured with time stamps in a non-volatile event log.
◆Related products
◆Get in touch
Ready to specify this meter?
Get technical documentation, DLMS OBIS list and commercial terms — our engineering team responds within one business day.