The digital pressure transmitter is equipped with a built-in digital chip and an MCU microprocessor. It not only outputs 4-20mA analog signals but also provides digital communication signals, enabling remote reading, range adjustment, zero point calibration, configuration, temperature checking, and fault alarm.
| Item | Analog Transmitter | Digital Pressure Transmitter |
|---|---|---|
| Signal | Only 4~20mA | 4~20mA + RS485 / Digital |
| Calibration | Manual buttons on site / Open cover calibration | Computer / Remote one-click calibration and range modification |
| Accuracy | 0.25% | Higher, 0.1% and 0.075% |
| Functions | Pressure measurement only | Pressure + Temperature, Self-checking for faults, Data storage |
| Drift Resistance | General | Digital temperature compensation, Long-term stability |
Water treatment, HVAC, air compressors, hydraulic systems, building automation, industrial Internet of Things, automated production lines, environmental protection equipment