CW24 WIFI Networked Intelligent Battery Coulomb Meter

Introduction

The CW24 WIFI Networked Intelligent Battery Coulomb Meter is designed to measure and display critical battery parameters. It provides real-time data on voltage, current, power, true capacity, battery temperature, and various alarm statuses such as low capacity and low voltage. The device also displays current voltage curves and electricity statistics, including remaining discharge and charging times, offering a comprehensive view of the battery pack's working state.

Voltage Measurement Range: DC0~420V

Current Measurement Ranges: 30A, 100A, 200A, 500A, 1000A

1. Scope of Application and Electrical Measurement Specifications

This instrument is suitable for a wide range of applications, including:

• Electric vehicles
• RVs
• Cars
• Emergency power supplies
• Energy storage power supplies
• Measuring equipment
• Medical equipment
• Various other instruments and products utilizing battery equipment.

It is compatible with various battery pack types, such as:

• Lithium batteries
• Lithium iron phosphate batteries
• Lead-acid batteries
• Nickel hydrogen batteries

The device operates with voltages ranging from DC 0~420V.

Power Requirement: A DC5V power supply is required for independent operation, especially when the battery voltage is less than 10V.

WiFi Module: Features a built-in WiFi module for remote control. By connecting the DT20 meter to a 2.4GHz Wi-Fi network, users can monitor and adjust settings via a smartphone app anytime, anywhere.

2. Wiring Instructions

The device supports two primary wiring methods:

2.1 Excluding Relay Connection Method

This method involves direct connections between the charger, load, battery, and the meter. The diagram illustrates the input terminals for voltage and current, along with connections for an independent power supply, temperature probe, and computer interface.

2.2 Relay Wiring Method

This method utilizes a 100V/80A relay for switching operations. The wiring diagram shows the battery connected to the meter, and the relay connected to the load and the meter's relay interface. It also includes connections for the independent power supply and computer interface.

Key Components shown in diagrams:

• Battery terminals (B+, B-)
• Voltage input terminals (V+, V-)
• Load terminals
• Independent power supply interface (DC5V-12V)
• Temperature probe connection
• Relay Interface
• 300cm cable TYPE-C connection port for instruments
• HID computer online interface

3. Two Ways to Test Battery Percentage

Users can choose from two methods to test battery percentage:

1. C+D- Mode (Capacity Percentage Test): In this mode, capacity is added during charging (C+) and subtracted during discharging (D-). The displayed value represents the battery's current actual capacity.
2. C+D+ Mode (Cumulative Capacity Calculation): In this mode, capacity is added during both charging (C+) and discharging (D-). The values are cumulative, providing a running total of charge and discharge cycles.

Operation Method: To select the capacity metering mode and testing method, long press the 'M' key to enter the background settings.

5. Four Standby Display Modes

The device offers four standby display modes, configurable via WiFi networking and offline manual calibration:

• Default Style: Shows detailed real-time data.
• Battery Style: Displays battery percentage prominently.
• Calendar Time Style: Shows date and time.
• Screen OFF Style: Turns off the screen to save power.

6. Measurement Data of Charging and Discharging Capacity Statistics Table

This feature allows users to view charging and discharging capacity data, including daily, monthly, and annual reports. It provides real-time management of charging and discharging power, statistics on daily charging and power consumption, and records operational power data. The system offers simple operation and high measurement accuracy.

The interface displays graphs for charging and discharging data, categorized by Day, Month, and Year.

7. CW24 Multi HD Color Screen Interface Design

The CW24 features a true color screen offering a vibrant visual experience. It displays multiple functional interfaces and parameters simultaneously, with easy switching between functions via short button presses. Both Chinese and English language interfaces are supported.

8. Latest Backend Settings

Users can access backend settings by long-pressing the 'M' key. Short presses of the '+' or '-' keys allow navigation through columns and selection of parameters for various functions. Settings include:

• Language Selection
• Display Brightness (Normal and Standby)
• Enter Standby Time
• Diverter Size selection (e.g., 30A, 100A, 200A, 500A, 1000A)
• Calibration (Voltage, Current, External Temperature)
• Prompt Settings (Over-voltage, Low-voltage, Over-power, Over-temperature)
• Zero settings (No-Load Current, Statistical Data)
• WIFI Reset
• Default Setting
• Mini Measure Amp
• System Sound Switch
• Capacity Metering Mode selection
• Standby Style Setting
• Calibrate Time Date
• About (Model, Version, ID, Website: http://atorch.cn)
• Exit

9. Independent Statistical Function for Charging and Discharging Capacity and Energy

ATORCH has developed an independent statistical interface page for charging and discharging capacity and electricity, catering to the needs of photovoltaic power generation users. This page provides detailed breakdowns of total charging capacity, total discharging capacity, total charging and discharging capacity, total charging energy, total discharging energy, and total charging and discharging energy, offering clear and comprehensive data at a glance.

10. Four Fold Alarm Prompt

The device features dual alarms (sound and display) for critical conditions: Over-voltage, Low-voltage, Over-power, and Over-temperature.

By long-pressing the 'M/OK' button, users can access backend system settings to configure thresholds for over-voltage, low-voltage, and over-power. If the temperature probe exceeds its threshold, the device displays an alarm message and sounds an internal buzzer. These alerts help users manage battery charging promptly, especially during low voltage or low capacity situations, preventing the battery from running out.

11. Product Size

The product dimensions are provided for the main unit and the external shunt. The main unit measures approximately 86mm x 63mm x 17mm (3.39in x 2.48in x 0.67in). The external shunt dimensions vary by model, with a common size being 66mm x 61mm x 35mm (2.6in x 2.4in x 1.38in) for models up to 500A, and a larger 120mm x 70mm x 48mm for the 1000A model. A 300cm Type-C data cable is included.

12. Powerful IoT Intelligent APP Control Software

The CW24 meter is controllable via a WiFi-connected mobile application, available through the Smart Life or Tuya app. Users can download and install the app on their smartphones to achieve remote control and testing. The app covers most of the device's functions, including functional control, battery power data detection, charging and discharging curve visualization, and daily/monthly/annual electricity statistics.

Note: The system supports 2.4G WiFi networks and requires Bluetooth and WiFi signals to be enabled on the mobile device.

13. Support Firmware Upgrade

The device supports WiFi networking for remote firmware updates, offering a lifetime free update function. Users can update the device's firmware through the mobile app, ensuring they have the latest features and improvements.

14. Powerful PC Software APP

The device can be connected to a PC for online backend synchronization and testing using the provided HID data cable. The PC software allows users to read device data such as current, voltage, power, and capacity, and export it in XLS format. The Bluetooth and WiFi apps also offer data viewing and curve analysis capabilities, though data export is primarily a PC function.

15. WIFI Voltmeter Distribution Network Description

Connecting the WiFi voltmeter to a network involves three simple steps:

1. Download the Smart Life APP or Tuya APP: Available on the Google Play Market and Apple App Store.
2. Add "ATorch" as WiFi Connected Electricity Meter (CW24): After powering on, the device's red light flashes, indicating it's ready to enter distribution network mode. Follow the app prompts to connect.

The process involves checking various data points, initializing software, and establishing a WiFi connection, leading to a paired and successfully connected state.

16. CW24 DC0-420V Product Parameter

The CW24 detachable WiFi smart voltmeter is available in several models with varying current capacities (30A, 100A, 200A, 500A, 1000A). Key parameters include:

17. 100V/80A Relay Description

The 100V/80A Relay is designed for on-off testing of 0-100V voltage and 0-80A current. It serves as a switch controller for various applications.

Product Lists

The CW24 series is available in different current ratings, each including:

• CW24 meter (WiFi version)
• 300cm Type-C data cable
• Temperature probe
• USB power supply cable

Specific product lists are detailed for the 30A, 100A, 200A, 500A, and 1000A models, outlining their respective current ranges and included accessories.

23. CW24 1000A Assembly Instructions

Due to the weight of the 1000A shunt, careful installation is required to prevent damage to the control panel. Follow these steps:

1. Identify the control module and the 1000A shunt.
2. Remove the screws from the 1000A shunt using a screwdriver.
3. Align the screw holes of the control board with the screw holes of the 1000A shunt.
4. Tighten and fix the two screws connecting the control board to the shunt.
5. Install the display panel and splitter according to the provided diagram.