SDM120 series Monophase Digital Display 50/60Hz RS485 Modbus Smart Electric Energy Meter
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- Supplier: Zhejiang Eastron Electronic Co. Ltd.
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Product Overview
Description
EASTRON SDM120 SERIES measures and displays the characteristics of single phase 2 wires application. It provides voltage, current, power, frequency, power factor and energy information.
SDM120 series has both direct connect types and 5A CT operated types. The direct connect type can work with direct load 45A. Two Pulse outputs and 1 remote communication port is provided.
Characteristics
Multi-parameters.
Bi-directional measurement IMP & EXP
Modbus / Mbus
Two pulse outputs
Accuracy Class 1.0
Din rail mounting 18mm
Backlit LCD Display
45A direct connect / 5A CT / 100mV connect
MID approved
Electrical characteristics | ||
Type of measurement | RMS including harmonics on three phase AC system (1P+N) | |
Measurement accuracy | Power | IEC 61557-12 Class 0.5 |
Active Energy | IEC 62053-21 Class 1.0 | |
Reactive Energy | IEC62053-23 Class 2, IEC 61557-12 Class 2 | |
Frequency | ±0.1% | |
Current | ±0.2% | |
Voltage | ±0.2% | |
Power Factor | ±0.01 | |
Input & Output | |||
Input-Current | Rated Current | 5A | 5 (6) A ( CT type ) |
Max Current | 45A | 9999A ( CT type ) | |
Min Current | 0.25A | 0.25A ( CT type ) | |
Starting Current | 20mA | 20mA ( CT type ) | |
Output | SDM120A/D/DB | Pulse Output for active energy | |
SDM120P/CTP | 2 Pulse Output for imp/exp. energy | ||
SDM120M/CTM | 2 Pulse Output + RS485 Modbus | ||
| SDM120MB/CTMB | 2 Pulse Output + M-bus EN13757 | |
Mechanical Characteristics | |
Weight | 100g |
IP Degree of Protection (IEC 60529) | IP51 front display |
Dimensions (WxHxD) | 119x17.5x62 |
Mounting Position | Vertical |
Material of meter case | Self-extinguishing UL 94 V-0 |
Mechanical environment | M1 |
Environmental Characteristics | |
Operating Temperature | -25 to 55°C |
Storage Temperature | -40 to 70°C |
Humidity Rating | <95% RH at 50 °C (non-condensing) |
Pollution Degree | 2 |
Altitude | 2000m |
Safety | |
Measurement Category | Per IEC61010-1 CAT II |
Current Inputs | Require external Current Transformer for Insulation |
Over voltage Category | CAT II |
Dielectric Withstand | As per IEC 61010-1 Double Insulated front panel display |
Protective Class | II |
Modbus Communications | |
Interface standard and protocol | RS485 and MODBUS RTU |
Communication address | 1~247 |
Transmission mode | Half duplex |
Data type | Floating point |
Transmission distance | 1000m Maximum |
Transmission speed | 2400bps~38400bps |
Parity | None (default), Odd, Even |
Stop bits | 1 or 2 |
Response time | <100 mS |
M-Bus Communications | |
Interface standard and protocol | M-bus EN13757-3 |
Communication address | 1~250 |
Transmission mode | Half duplex |
Data type | Floating point |
Transmission distance | 1000m Maximum |
Transmission speed | 2400bps~38400bps |
Parity | None (default), Odd, Even |
Stop bits | 1 or 2 |
Response time | <100 mS |
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