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Phone
136-8642-3519
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Address
13th Floor, Dongming Building, Minkang Road, Minzhi Street, Longhua District, Shenzhen
Shenzhen Jiaronghua Technology Co., Ltd
136-8642-3519
13th Floor, Dongming Building, Minkang Road, Minzhi Street, Longhua District, Shenzhen
Product Introduction
PRODUCT BRIEF
The NB-IOT three-phase electronic energy meter is a new type of energy meter designed and manufactured using advanced low-power integrated circuit technology and SMT process, used to measure three-phase active energy in 50/60Hz AC circuits.
This meter can directly and accurately measure the total active power, real-time current, voltage, active power, power factor, and frequency. At the same time, it has RS485 communication function, which can realize remote meter reading and remote control. Its performance indicators meet the requirements of GB/T 17215.321-2008 "Level 1 and Level 2 Static AC Active Energy Meters". This meter has functions such as remote control and viewing of power information through NB-IOT. In addition, this meter can be specially customized with RS485 communication function, and the communication protocol supports DL/T645-2007 "Multi functional Meter Communication Protocol". All performance indicators meet the requirements of DL/T614 "Multi functional Energy Meter" or MODBUS-RTU communication protocol.
PRODUCT FEATURES
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Fully electronic three-phase AC active energy bidirectional metering function, reverse included in total electricity consumption |
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Equipped with anti creep logic circuit and anti electricity theft function |
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Measure current, voltage, active power, reactive power, power factor, frequency |
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Equipped with touch buttons for convenient wheel display |
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Equipped with touch button wheel display function, long press the button for 5 seconds to clear the interval battery function at any time |
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Wide range, low power consumption, small size, light weight, beautiful appearance, high reliability |
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Installed on a 35mm standard guide rail, the current and voltage wiring adopts a bottom in and bottom out method, which is convenient to replace traditional electric meters |
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Step by step electricity price: The electricity price can be set according to the user category and usage, with different benchmark prices and step by step prices |
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Equipped with NB-IOT communication function, it can achieve remote query and control |
Working principle
PRODUCT BRIEF
The DT (S) S238-7 WIFI three-phase meter mainly consists of a voltage and current sampling circuit, a dedicated energy metering chip, a CPU, and an LCD display. The electric energy meter inputs the sampled voltage and current signals into a dedicated electric energy metering chip, outputs electric energy pulse signals, displays the electric energy on an LCD, and remotely records the electric energy and other data in the meter through a WIFI interface.
Electrical parameters
OUTLINE SIZE
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Operating Voltage |
0.9Un~1.1Un |
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Extreme working voltage |
0.7Un~1.2Un |
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Voltage line power consumption |
≤ 2W and 5VA |
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Power consumption of current circuit |
<1VA |
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Measurement range |
0~999999.99kwh |
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Voltage, current, power accuracy, power factor, frequency |
+0.5% |
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Electric energy accuracy |
+1% |
WiFi function parameters
OUTLINE SIZE
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Delay reset time |
60+5 seconds |
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Determination of the establishment time for overvoltage, undervoltage, and overload events |
3 seconds |
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Overvoltage action cut-off value |
default270V+1. The APP can set numerical values |
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Overvoltage recovery value |
default260V+1 (APP overvoltage value -10V) |
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Undervoltage action cut-off value |
default170V+1. The APP can set numerical values |
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Undervoltage recovery value |
default170V+1. (APP undervoltage value+10V) |
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Overload current limit |
default60A, APP can set values |
Attention: In the event of a sudden external power outage, this product does not perform a tripping action. The main purpose of this product is to ensure its metering performance.