1. Introduction
The BRIGHTWIN BRT VIDM2 is an adjustable digital process panel meter designed for displaying analog signals such as 0-20mA, 4-20mA, 0-5V, 0-10V, and also capable of handling ±50mA and ±50V inputs. This versatile unit is suitable for various industrial applications, including integration with valves and PLCs. It features a clear 0.56-inch RED LED display, settable decimal point positions, and a wide operating power supply range of 5-24VDC. The meter is built for durability and reliability, incorporating power supply polarity reverse protection and input anti-static protection.
2. Safety Information
- Always disconnect the power supply before making any electrical connections or adjustments to prevent electric shock.
- Ensure all wiring is performed by qualified personnel in accordance with local electrical codes and regulations.
- Verify the correct voltage and current ratings before connecting the device to avoid damage.
- Do not operate the device in environments exceeding its specified operating temperature or humidity ranges.
- If input signal GND terminal and the GND terminal from the device connected are NOT in common ground, please connect an isolated independent operating power supply to the BRT VIDM2 display indicator to avoid interference.
- Power supply input GND and signal input GND are in common ground; only connect either one of the GND terminals.
3. Product Overview
The BRT VIDM2 is a compact panel-mount digital meter with a bright red LED display. It is designed for easy integration into control panels and systems.
3.1 Components
- Front Panel: Features a 0.56-inch RED LED display for clear readings.
- Rear Panel: Contains terminal blocks for power supply and signal input connections. Two small buttons (SET KEY, UP KEY) are located on the backside for parameter settings.
Figure 1: Front view of the BRT VIDM2 Digital Panel Meter
Figure 2: Back view with terminal connections (GND, V+, AI, G)
4. Specifications
| Parameter | Description |
|---|---|
| Model Number | BRT VIDM2 |
| Type | 0-10V 4-20mA indicator, Panel meter |
| Functions | 0-20mA 4-20mA 0-5V 0-10V Process Indicator |
| Operating Power Supply | 5-24VDC, <0.5W power consumption |
| Input Measuring Range (Current) | Max. ±50mA, default 0-20mA |
| Input Measuring Range (Voltage) | Max. ±50V, default 0-20V |
| Input Impedance (Current) | 10 Ω |
| Input Impedance (Voltage) | 50k Ω |
| Display | 4-byte 0.56inch RED LED tube display |
| Display Setting Highlight | Decimal point, display digits settable (e.g., 0-100.0, 50.0Hz, 100.0%) |
| Operating Temperature | 0-40°C, <80% humidity, non-condensation |
| Size | 79x42x25mm |
| Hole-opening/Cut-out size | 76x40mm (LxW) |
| Panel Thickness | >1mm, <10mm |
| Weight | 40g |
| DIY Supplies | Electrical |
| Certification | CE, RoHS |
| Origin | Mainland China |
5. Setup
5.1 Physical Installation
The BRT VIDM2 is designed for embedded installation. Ensure your panel has a cut-out size of 76x40mm (Length x Width) and a panel thickness between 1mm and 10mm.
5.2 Wiring Instructions
Refer to the wiring diagram below for proper connection of the power supply and input signals. Always ensure the power supply is disconnected before wiring.
Figure 3: Wiring Diagram and Dimensions
Terminal Connections:
- GND: Ground for power supply.
- V+: Positive terminal for 5-24VDC power supply.
- AI: Analog Input (for current or voltage signal).
- G: Ground for analog input signal.
Important Wiring Warnings:
- Please remove/disconnect the operating power supply first, then connect the input wire.
- Power supply input GND and signal input GND are in common ground; only connect either one of the GND terminals.
- If the input signal GND terminal and the GND terminal from the device connected are NOT in common ground, the user must connect an isolated independent operating power supply to the BRT VIDM2 display indicator to avoid interference.
6. Operating Instructions
The BRT VIDM2 allows for customization of its display parameters using two keys located on the backside of the meter: the [SET KEY] and the [UP KEY].
6.1 Parameter Setting Procedure
- Long press [SET KEY] for 2 seconds to enter the setting status.
- Press [SET KEY] once to switch between parameters codes.
- Press [UP KEY] once to enter the parameter value setting.
- Short press [UP KEY] once, the parameter value increases by 1; keep pressing [UP KEY] to rapidly increase the parameter value.
- After setting parameters completely, press [SET KEY] once to save the setting and return to the parameters code status.
6.2 Parameters Code Table
| Parameters Code | Functions Description | Value | Default |
|---|---|---|---|
| F001 | ZERO point display | 0-9000: the digit displayed at 0V or 0mA input | 0 |
| F002 | User-defined intermediate point value | 1.00-19.00: current or voltage signal value | 4.00 |
| F003 | Intermediate point display | 0-9000: digit displayed at Intermediate point | 400 |
| F004 | 20V or 20mA point display | 0-9000: at 20.00mA/20.00V input, the digit displayed. | 2000 |
| F005 | Decimal point position | 0:9999 1:999.9 2:99.99 3:9.999 | 2 |
| F006 | Zero calibration | Disconnect input wire or short-circuited input wire, then press [UP KEY] once. | |
| F007 | No functions, only for factory inspection. |
6.3 Calibration Demonstration Video
This video demonstrates the calibration process of the BRT VIDM2 using a process calibrator, showing how input current changes affect the display reading.
Video 1: BRT VIDM2 Process Calibrator Demonstration
7. User Tips
- For initial setup or if the display seems incorrect, carefully review the "Parameters Setting Instructions" and the "Parameters Code Table" in Section 6. This is crucial for configuring the meter to accurately display your specific input signal (e.g., 4-20mA, 0-10V) and desired scaling.
- When performing zero calibration (F006), ensure the input signal is completely disconnected or short-circuited as specified to achieve an accurate zero reference.
- If experiencing unexpected readings, double-check all wiring connections, especially the common ground connections, as highlighted in the safety warnings.
8. Maintenance
The BRT VIDM2 is designed for low maintenance. Keep the device clean and free from dust and moisture. Use a soft, dry cloth for cleaning. Do not use abrasive cleaners or solvents. Ensure the operating environment remains within the specified temperature and humidity ranges to prolong the device's lifespan.
9. Troubleshooting
- No Display: Check the power supply connections (5-24VDC) and ensure the voltage is within the specified range. Verify polarity.
- Incorrect Reading: Review the parameter settings (Section 6) to ensure they match your input signal type and desired display scaling. Check the input signal wiring for correct connections and ensure the signal source is functioning properly.
- Fluctuating Display: This could indicate electrical interference. Ensure proper grounding and consider using an isolated power supply if the input signal's ground is not common with the meter's power supply ground.
- Display Stuck: Disconnect power, wait a few seconds, and reconnect. If the issue persists, recheck wiring and parameter settings.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please contact your vendor or the manufacturer directly. Keep your purchase receipt as proof of purchase. Ensure you provide the model number (BRT VIDM2) and a detailed description of the issue when seeking support.
