Instantaneous + Cumulative Flow Monitoring - Signal Indicators Tailored for Industrial Automation

Instantaneous + Cumulative Flow Monitoring - Signal Indicators Tailored for Industrial Automation
As intelligent manufacturing and automation evolve, the demand for real-time, stable, and high-resolution signal processing is increasing rapidly. For applications such as flow, air velocity, pressure, or environmental monitoring, signal indicators are no longer just displays — they are critical bridges between sensors and control systems.
eyc-tech’s DPM03 Multifunction Signal Display Monitor and DPM04 Flow Totalizer integrate high-precision digital displays, analog I/O, RS-485 Modbus RTU communication, square root extraction, and linear interpolation. These features make them reliable signal solutions for a wide range of industrial sensor integration and process control.
Product Positioning & Application Overview
Model |
Core Features |
Typical Applications |
DPM03 |
Easy-to-use, single input display control |
Pressure, differential pressure, temperature and humidity, etc. Precision signal monitoring |
DPM04 |
Instantaneous + Cumulative Flow Display |
can be used in connection with air/liquid flow transmitters |
Both models support multiple signal types (Voltage / Current / Frequency / Pulse) and integrate RS-485 Modbus RTU communication for real-time data acquisition and alarm response.
Relay Control & Monitoring

Compatible with eyc-tech UI Configuration Software

Interpolaton Function True Calibration of Measurement data
Key Technical Features
1. High Accuracy Digital Display
● ±0.1% F.S. ±1 digit measurement accuracy, designed for critical process control.
● 2-inch LCD screen supports dual-line display for instantaneous and cumulative flow (DPM04), up to 5-digit readout (DPM03).
2. High-Resolution Input: 16-bit ADC Conversion
● Equipped with a 16-bit high-performance analog-to-digital converter (ADC), enabling finer data responsiveness suitable for high-sensitivity applications.
● The high-resolution input design ensures that even the slightest signal variations are accurately captured, leaving no critical data overlooked.
3. Flexible Signal Input/Output
● Supports Voltage / Current / Pulse / Frequency input signals.
● Outputs include analog signal, relay control, and RS-485 Modbus RTU, allowing seamless integration in automation systems.
4. Square Root Extraction & Linear Interpolation
● Built-in square root extraction for differential pressure to flow conversions (e.g., pitot tube applications).
● Linear interpolation calibration corrects sensor non-linearity, improving measurement accuracy.
5. Dual-Layer Relay Protection
● Relay logic configurable for Hi / Lo thresholds, hysteresis, delay time, and reset delay — enhancing on-site safety.
● Abnormal relay operation detection allows real-time monitoring and diagnostics, reducing risk of control faults.
System Integration & Digital Upgrade
DPM03 and DPM04 are equipped with RS-485 Modbus RTU interface and support master/slave configuration. They can be easily integrated into existing systems without additional wiring or modifications.
With eyc-tech UI configuration software, users can configure parameters, enable square root extraction, and apply curve correction via PC — enabling precise on-site setup and remote maintenance.
More than just displays, DPM03 and DPM04 combine display, signal conversion, communication, and control logic into a compact, versatile solution — supporting modular upgrades and long-term system scalability.
eyc-tech DPM03 Multifunction Signal Display Monitor
Display readout : 5-digit
Input : Current / Voltage
Output : Current / Voltage / Relay / RS-485
Accuracy : ±0.1% F.S. ±1 digit
IP rating : IP65 (Front panel)