Hiking DDS238-4 W - User Manual

USER’S MANUAL
1. General Description
DDS238-4 W type multi-function smart energy meter is designed to measure single phase two
wire AC active energy and variable parameter. The meter have RS485 communication port and
WIFI communication, it can use APP for remote reading and control on/off. All of its functions
comply with the relative technical requirement for class 1 single phase watt hour meter in
IEC62053-21 and its data communication rules obey the requirement of MODBUS-RTU and
WIFI 802.11b/g/n.It is a long life meter with the advantage of high stability , high over load
capability , low power loss and small volume .
The meter should be installed in suitable environment with ambient temperature range
between -25
℃
～
+55
℃
,the relative humidity less than 75% and temperature limits between
and-40
℃
～
+70
℃
.
The meter is manufactured complying with international standard IEC62052-11 on
“Electricity metering equipment (AC) General requirements tests and test conditions” and
IEC62053-21 on “Static meters for active energy (classes 1 and 2)”.
2.Specification and Technical Parameters
2.1Specification
Meter type DDS238-4 W
Rate frequency 50 or 60 Hz
Rated current 5(60)A ,10(100)A
Rate voltage 120V / 220V / 230V /240V
Normal voltage
range
90%Un
～
110%Un
Limits voltage
range
70%Un
～
120%Un
kWh Accuracy Class 1
R.M.S accuracy Class 0.5
Pulse constant See meter
RS485 port MODBUS-RTU protocol, 1200
～
9600bps,None parity ,default 9600bps
WIFI 802.11b/g/n ,only support 2.4GHz network , not support 5GHz network
2.2 basic parameters
Note: when it happens interrupt power-supply , the meter will not cut off , undervoltage event
Delayed power on/off time 60+5s
overvoltage / undervoltage / overload event
judgment time
3s
Overvoltage protection value
270V+1(default)，APP can set value
Overvoltage recovery value 260V+1(default)= (APP overvoltage
value - 10V)
Undervoltage protection value
170V+1(default)，APP can set value
Undervoltage recovery value
170V+1， (default)= (APP
overvoltage value + 10V)
Overload protection value
65A(default)， APP can set value
Delay on/off control 00:01—24:00 Hour

Summary

General Description of Smart Energy Meter

Specification and Technical Parameters

Meter Specification Details

Details meter type, frequency, voltage, current, accuracy, and communication ports.

Basic Operational Parameters

Lists operational parameters like delayed power on/off, protection, and recovery values.

Basic Features of the Meter

Tolerance and Consumption

Covers basic tolerance, self-consumption, starting current, anti-creeping, and average life.

LCD Display Information

Details the information displayed on the meter's LCD screen.

Working Principles and Structure

Meter Working Principles

Explains how voltage and current are sampled and processed for energy measurement.

Meter Structure Components

Describes the physical components of the meter, including base, cover, and terminals.

Usage and Installation

Schematic Diagram of Usage

Illustrates the front panel layout and indicator lights for meter operation.

LED Indicators and Buttons

Explains the function of WIFI, Impulse, and Relay LEDs, and control buttons.

Connection Diagrams

Provides diagrams for normal wire connection and RS485/Impulse terminals.

Installation Guidelines

Covers DIN rail mounting, enclosure requirements, and wiring best practices.

Transportation, Storage, and Warranty

Transportation and Storage Conditions

Specifies requirements for handling, temperature, humidity, and stacking during storage.

Warranty Period and Service

Outlines the warranty terms for repair or replacement within 12 months.

Communication and Data

Frame Format for Commands

Defines the structure for send and receive frames for write and read commands.

Energy Meter Register Addresses

Lists register addresses, data numbers, items, formats, and units for meter data.

Display Items and App Integration

Meter Display Information

Details the information shown on the LCD display, such as energy, voltage, and current.

WIFI Setup and App Usage

Guides on scanning for software, adding devices, and connecting to a 2.4GHz WIFI network.

App Control and Settings

Meter Output Control

Describes using the app for on/off control, reset, and timing control of meter output.

Protection and Value Settings

Explains setting voltage/current limits for protection and defining starting kWh value.

Data Interpretation and Management

Meter Detail Information

Shows serial number, energy values (import/export), voltage, current, and power factor.

Device Management in App

Covers changing meter names and deleting devices from the app's device list.

Smart Interaction Features

Voice Control Capabilities

Details using voice commands for meter on/off control with supported smart sound devices.

Overview

1. Function Description
2. Important Technical Specifications
3. Usage Features
4. Installation
5. Wi-Fi Connection
6. APP Interface
7. Maintenance Features

The DDS238-4 W is a multi-function smart energy meter designed to measure single-phase two-wire AC active energy and various parameters. It features both RS485 and Wi-Fi communication, allowing for remote reading and on/off control via a dedicated application. The meter's functions comply with IEC62053-21 for class 1 single-phase watt-hour meters, and its data communication adheres to MODBUS-RTU and Wi-Fi 802.11b/g/n standards. It is designed for long life, offering high stability, high overload capability, low power loss, and a compact size.

Function Description

The meter measures positive and negative active energy, with negative energy accumulated into positive energy. It also displays real-time values for voltage, current, active power, power factor, and frequency. A pulse LED indicates the meter's operation, and a pulse output with optical coupling isolation (18-27V, 27mA) is available. The device measures active energy without requiring calibration for long-term operation and allows step-by-step display navigation using a button.

Key features include:

• Remote Control: The meter can be controlled remotely via an APP for data reading and on/off functions.
• Protection Features: It incorporates overvoltage, undervoltage, and overload protection, with configurable values via the APP.
• Timing Control: A timing control function, also configurable through the APP, allows for scheduled on/off operations.
• Energy Reset: The active energy can be reset to zero via the APP.

Important Technical Specifications

• Meter Type: DDS238-4 W
• Rated Frequency: 50 or 60 Hz
• Rated Current: 5(60)A, 10(100)A
• Rated Voltage: 120V / 220V / 230V / 240V
• Normal Voltage Range: 90%Un ~ 110%Un
• Limits Voltage Range: 70%Un ~ 120%Un
• kWh Accuracy: Class 1
• R.M.S Accuracy: Class 0.5
• Pulse Constant: See meter
• RS485 Port: MODBUS-RTU protocol, 1200 ~ 9600bps, None parity, default 9600bps
• Wi-Fi: 802.11b/g/n, supports only 2.4GHz network (not 5GHz).
• Delayed Power On/Off Time: 60±5s
• Overvoltage/Undervoltage/Overload Event Judgment Time: 3s
• Overvoltage Protection Value: 270V±1 (default), configurable via APP.
• Overvoltage Recovery Value: 260V±1 (default) = (APP overvoltage value - 10V).
• Undervoltage Protection Value: 170V±1 (default), configurable via APP.
• Undervoltage Recovery Value: 170V±1 (default) = (APP overvoltage value + 10V).
• Overload Protection Value: 65A (default), configurable via APP.
• Delay On/Off Control: 00:01-24:00 Hour.
• Self-consumption: Current circuit < 1.5VA, Voltage circuit < 2W/8VA.
• Starting Current: Under rated voltage, frequency, and COSO=1, the meter starts and registers at 0.2% In (if CT used) or 0.4% Ib.
• Anti-creeping: Logical circuit prevents more than one pulse when 115%Un is connected and current circuit is cut.
• Average Life: At least 10 years in normal operation.
• LCD: 6+2 (999999.99kWh).

Usage Features

The meter is designed for installation in environments with ambient temperatures between -25°C and +55°C, relative humidity less than 75%, and temperature limits between -40°C and +70°C.

Installation:

• Mounts on a 35 mm DIN rail.
• Must be checked and sealed before use.
• Install in a waterproof box indoors or outdoors, fixed on a strong, flame-resistant wall at a recommended height of about 1.8m, away from corrosive gases.
• Connect according to the diagram on the terminal cover, preferably using copper wire, ensuring all screws are tightened.

Wi-Fi Connection:

• Pushing the setting button for 5 seconds puts the meter into Wi-Fi distribution network waiting status (Wi-Fi LED flashes 1s interval).
• A solid Wi-Fi LED (on for 5s, off for 0.1s) indicates successful connection.
• Use the "WISEN" APP (downloadable via QR code) to add the device.
• The APP requires the phone to be connected to an available 2.4GHz Wi-Fi network (5GHz is not supported).
• Input the Wi-Fi network account and password in the APP to complete the connection.

APP Interface:

• Home Screen: Displays online/offline status of devices.
• Meter Detail: Shows total active energy, total active power, import/export active energy, contrast active energy, frequency, R.M.S voltage, current, active power, reactive power, and power factor.
• Control Button: Toggles meter output on/off.
• Reset Button: Resets total active energy to zero.
• Timing Button: Configures timing control (on/off) and time delay control.
  • Time Control: Set specific on/off times. If no week is selected, it's a single-time control; otherwise, it's a cycle control.
  • Time-Delay Control: Set delays from 1 minute to 24 hours for on/off operations (e.g., stopping car charging after 2 hours).
• Setting Button: Configures protection values (overvoltage, undervoltage, overload) and unit price.
  • Voltage High/Low Limit: Sets overvoltage/undervoltage protection thresholds. Overvoltage limit must be higher than undervoltage limit.
  • Current High Limit: Sets overload protection threshold.
  • Protection Logic: Protection events must last 3s to trigger cut-off. After cut-off, the meter delays 60s to confirm voltage/current recovery before automatically switching back on.
  • Starting kWh Value: Used for calculating "contrast active energy" against a power company meter.
  • Meter Price: Sets the price per kWh.
• History kWh: Displays total active energy consumption for the last 7 and 30 days, and total active energy cost (special order in some countries).
• Meter Detail: Shows R.M.S values, bi-direction active energy, and contrast active energy.
• Management: Allows changing meter names and deleting meters from the device list.
• Smart Interaction: Supports voice control for meter on/off via Cat Elf and Echo smart sound devices.

Maintenance Features

• Warranty: 12 months from the date of sale, provided the user operates the device correctly according to the manual. Repairs or replacements are free of charge if the meter does not meet technical specifications.
• Storage: Products should be stored in their original packaging, at temperatures between -40°C and +70°C, with relative humidity less than 75%, and no corrosive gases present. In a storehouse, meters should be placed on shelves, with no more than 7 cartons piled vertically. Single-packed meters should not be piled more than 5 meters high.

Hiking DDS238-4 W Specifications

General

Brand	Hiking
Model	DDS238-4 W
Category	Measuring Instruments
Language	English