LINK812C
Two Years
Two Years
Digital
Direct Connected
Multi-Functional Energy Meter, Meter for Industry and Home Use, Prepayment Meter
Three-phase Four-wire
Electric Apparatus
Continuous Wave
Power Meter
ISO
Customized
Linkelec
Made in China
Product Description
Rail type dual phase meter
1.Product Introduction
This product is mainly used in the field of electricity information collection for three-phase power networks with frequencies ranging from 45 to 65Hz. It can measure all electrical parameters in the power grid and exchange data with the upper computer through communication. Users can set the internal parameters of the product according to the actual situation on site, which is convenient to use, easy to operate, and has high accuracy; Widely used in various power ubiquitous IoT usage scenarios.
It can achieve high-precision measurement and metrology to meet measurement and other applications. Adopting standard DIN35mm rail installation and modular structural design, it can be easily installed inside the distribution box. Users can easily switch displays and set parameters on-site, making it flexible and convenient to use. It can directly replace conventional power transmitters and other auxiliary units as an advanced intelligent digital power grid front-end acquisition component, widely used in various control systems, substation automation systems, and distribution automation systems. It has the characteristics of easy installation, simple wiring, convenient maintenance, and small engineering quantity, and can flexibly network with various communication software.

2.Technical parameterThis product is mainly used in the field of electricity information collection for three-phase power networks with frequencies ranging from 45 to 65Hz. It can measure all electrical parameters in the power grid and exchange data with the upper computer through communication. Users can set the internal parameters of the product according to the actual situation on site, which is convenient to use, easy to operate, and has high accuracy; Widely used in various power ubiquitous IoT usage scenarios.
It can achieve high-precision measurement and metrology to meet measurement and other applications. Adopting standard DIN35mm rail installation and modular structural design, it can be easily installed inside the distribution box. Users can easily switch displays and set parameters on-site, making it flexible and convenient to use. It can directly replace conventional power transmitters and other auxiliary units as an advanced intelligent digital power grid front-end acquisition component, widely used in various control systems, substation automation systems, and distribution automation systems. It has the characteristics of easy installation, simple wiring, convenient maintenance, and small engineering quantity, and can flexibly network with various communication software.


Performance point | Performance index | |
input voltage | rated voltage | 220V AC |
frequency range | 45~65Hz | |
overload capacity | 1.2Un (continuous); 2Un (10s allowed) | |
measuring range | 0.5 Un~1.2Un | |
Power consumption | < 0.3VA per loop | |
incoming current | rated current | 5(60)A |
overload capacity | 1.2In (continuous); 20In (1s allowed) | |
measuring range | 0~1.2Imax, and the threshold value is 50mA. | |
Power consumption | < 0.5VA per loop | |
working power supply | Operating voltage range | 0.7 Un~1.2 Un |
Power consumption | <2.5W,5VA | |
Internal relay | Maximum switching current | 80A |
communication interface | Interface form | Half duplex, optical isolation, RS485 interface |
Address range | 1~247 | |
protocol | Modbus-RTU | |
Communication baud rate | 2400~19200bps, the default is 9600bps. | |
environmental conditions | Working temperature | -20ºC~70ºC |
storage temperature | -40ºC~70ºC | |
Working humidity | 0 ~ 95% does not condense. | |
atmospheric pressure | 86kPa~106kPa | |
mechanical character | vibrate | GB/T 11287 severity level 1 |
lash | GB/T 14537 severity level 1 | |
collide | GB/T 14537 severity level 1 | |
Electromagnetic compatibility performance | Radio frequency electromagnetic field immunity test | GB/T 17626.3-2006 Severity Grade 3 |
Electrical fast transient test | GB/T 17626.4-2008 Severity Grade 4 | |
Attenuated oscillation wave immunity test | Severity grade 3-12-1998 | |
Electrostatic discharge test | GB/T 17626.2-2006 Severity Grade 4 | |
Surge immunity | GB/T 17626.5-2008 Severity Grade 4 | |
Radio frequency conduction immunity | GB/T 17626.6-2008 Severity Grade 3 | |
radio disturbance | GB/T 17215.211-2006 7.5.8 Class B Equipment | |
Interference degree of power frequency magnetic field | GB/T 17626.8-2006 Severity Grade 3 | |
Electrical insulation performance | insulance | GBT 13729-2002, not less than 100MΩ. |
dielectric strength | GB/T 13729-2002, power frequency voltage 2kV, 1 minute. | |
surging | GB/T 13729-2002,1.2/50μs,5kV |
functional module | S/N | Function point | Function Point Description | LINK812C |
Single-phase rail prepayment meter | ||||
real-time measurement | 1 | Voltage | Phase voltage: U | √ |
2 | electric current | Phase current: IA, IB | √ | |
3 | Active power | Active power: PA, PB, P | √ | |
4 | Reactive power | Reactive power: QA, QB, Q | √ | |
5 | Apparent power | Apparent power: SA, SB, S | √ | |
6 | power factor | Power factor: PFA, PFB, PF | √ | |
7 | frequency | System frequency: f | √ | |
Electricity metering | 8 | Active kilowatt hour | Bidirectional active energy of each loop | √ |
9 | Reactive kilowatt hour | Bidirectional reactive energy of each loop | √ | |
Multiple rate | 10 | time zone | Supports up to 4 time zones. | - |
11 | time interval | Up to 4 daily time slots are supported, and each daily time slot supports up to 8 time slots. | ||
12 | rate | Up to four rates, namely, peak, flat and valley, are supported. | ||
13 | Multiple rate kilowatt hour | Forward/reverse active complex rate electricity | ||
Prepayment | 14 | call the | Prepayment has an alarm function, and the alarm threshold can be set. When the remaining amount/power is less than or equal to the threshold, an alarm will be given to remind users to recharge in time. | √ |
15 | get credit | Can realize credit function, credit threshold can be set. | √ | |
frozen | 16 | Monthly freeze | The freezing day of the month can be set from 1 to 28, and the electric energy of this month can be automatically recorded at the zero point of the setting day of each month, which can be recorded for 12 consecutive months. | - |
17 | Daily freeze | This month's electric energy can be automatically recorded at 0: 00 every day, which can record the recent 90 days' electric energy continuously. | - | |
Telesignalling | 18 | Over limit alarm | Remote communication state with 8-level out-of-limit alarm | - |
19 | Prepaid status | Alarm status such as insufficient balance and no balance. | √ | |
Malignant load | 20 | Malignant load identification | Total current limit, total power limit, single load power limit and malignant load limit can be realized. | √ |
exceed the time limit | 21 | Over limit alarm | 8-level over-limit alarm function, which can monitor power parameters and remote signal volume, generate an alarm when conditions are met, and can be linked with the exit of the alarm. | ○ |
Event record | 22 | SOE record | It has 64 SOE recording functions, including remote control, recharge and other records, and records with time scales. | √ |
23 | Record of maximum value | The maximum and minimum values of relevant parameters (voltage, current, active power, reactive power, apparent power, power factor and frequency) can be counted in real time, and recorded with time scales. | ○ | |
Clock | 24 | Clock | Accurate clock with hardware | √ |
Input and output | 25 | Built in relay | Optional built-in relay to realize opening and closing. | √ |
26 | Pulse output | With active energy pulse output port, used for accuracy detection of electric energy meter. | √ | |
communication interface | 27 | RS485 communication | 1 RS485 communication, supporting MODBUS-RTU protocol; Support online upgrade program through RS485 interface. | √ |
28 | NB Communication | Support NB communication mode | ○ | |
29 | telecommunications | Support wireless communication and MODBUS-RTU protocol. | ○ |
4.Product perforation and installation diagram

5.About our service :
* We could provide 7* 24-hour phone call after-sales service.
* We provide a 2-year guarantee time and will change the meter for you within 1 year if there's something wrong with the product. Except for natural disasters or man-made reasons.
* Recommend the most advanced application technology and management model in the industry to customers, and provide customers with detailed solutions.
6.Delivery Diagram
