1measure and analyze I,kWh,kvarh
2 multi-tariff,RS485 communication
3analog output, remote input and electrical pulse output
Port: Shenzhen
Minimum Order Quantity: 1 Unit/Units
Supply Ability: 10000 Unit/Units per Month
Payment Terms: D/P,T/T,Western Union,MoneyGram
Contact Supplier
Packaging Detail: 1unit/carton or as customer requested.
Delivery Detail: 15-20 days
lcd digital enery meter DEM8900
1.1 Description
DEM8900-1/DEM8900-2/DEM8900-3 (short form for DEM8900) is designed by adopting the updated microprocessor and digital signal processing technology, which can be applied for monitoring the electrical system. DEM8900 can measure and analyze the real time electrical parameters, such as I,kWh,kvarh., Meanwhile, DEM8900 has functions of multi-tariff,RS485 communication ( MODBUS protocol),analog output, remote input and electrical pulse output.
All our instruments fulfill all important requirements and regulations concerning electromagnetic compatibility and safety isolation (IEC61000, IEC1010 standard and EN61010 standard). The devices have been developed, manufactured, and tested in accordance with Quality Assurance System ISO 9001.
| No. | Variables | Unit | Direction | Display (Max.) | Accuracy |
| 1 | Current | A/kA | 9.999 kA | Class 0.2 | |
| 2 | Active Power | kW/MW | Directional | 20mA | Class 0.5 |
| 3 | Reactive Power | kVar/MVar | Directional | 20mA | Class 0.5 |
| 4 | Active Energy | kWh | Directional | 999999.99 MWh | Class 1.0 |
| 5 | Reactive Energy | kvarh | Directional | 999999.99 Mvarh | Class 2.0 |
Note 1. DEM8900-1 measure current, active energy, active power (optional, with analog output)
2. DEM8900-2 measure current, reactive energy, reactive power (optional, with analog output)
3. DEM8900-3 measure Current, active energy, reactive energy, active/reactive power (optional, with analog output)
The measured parameter unit is displayed on PC as follows
| Measured Parameter | Current | Active Energy | Reactive Energy |
| unit | A/kA | kWh/MWh | kvarh/Mvarh |
| Parameter | Scope | Remark |
| Meter address | 1—247 | |
| PT | 1.00—99.00 and 100.0—6500.0 | |
| CT | 1.0—6500.0 | |
| RS485 baud rate | 2400 /4800/9600/19200/38400 | bps |
| Pulse Energy Constant | 1—9600 | Passive pulse |
| Pulse width | 20—100 | ms |
| Analog output corresponding | 4—20mA or 0—5V | Corresponding value I1/I2/I3/P/Q |
| Mult-tarrif rate | 2—12 Interval /alternation time is multiply by 30 minutes |
Parameters setup refer to operation instruction.
1.4 EMC and Safety standard
IEC61000-4-2 (GB/T17626.2)
IEC61000-4-8 (GB/T17626.8)
IEC61000-4-4 (GB/T17626.4)
IEC61010-1 (GB/T4793.1)
Pls kindly contact me if you are interested in our products!
thanks&br
Update Date:2012-03-22 03:35:24
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