Simple Reliable Non Intelligent Pressure Transmitter IP67 Stainless Steel 316L Material
Non Intelligent Pressure Transmitter
The non-intelligent pressure transmitter is a device that linearly converts physical pressure signals (such as pressure, differential pressure, and absolute pressure) into standard analog current or voltage signals through pure analog circuits and mechanical structures.
- Simple and reliable structure: Few components, relatively low failure rate, and strong anti-interference ability.
- Low cost: The price is usually significantly lower than that of intelligent transmitters.
- Easy to understand and maintain: The technical principle is intuitive and easy for maintenance personnel to master.
- Instant response: Pure analog circuit, no signal delay, and fast response.
- Wide compatibility: The 4-20mA standard is supported by all control systems.
| Comparison dimension | Non-intelligent (analog) pressure transmitter | Intelligent pressure transmitter |
|---|---|---|
| Core chip | No microprocessor, pure analog circuit | Built-in microprocessor |
| Communication method | Unidirectional analog signal (such as 4-20mA) | Bidirectional digital communication (HART superimposed on 4-20mA or full digital fieldbus) |
| Output information | Only process variable (PV) | PV + device status + diagnosis + multiple variables |
| Configuration and debugging | Manual on-site (adjust potentiometer with screwdriver) | Local or remote digital configuration |
| Accuracy and compensation | Fixed, primary analog compensation | High-precision, full-condition compensation implemented by software |
| Maintenance mode | Reactive, periodic | Predictive, based on status |
| Asset management | Difficult, relying on paper records | Easy, integrated into software platform |
Non-intelligent transmitters still hold an important position in the following scenarios due to their reliability and low cost:
- Measurement points in non-critical and stable working conditions:
- For example: general water tank liquid level, circulating water pressure, and non-core process compressed air pressure.
- Requirements: Low demands for accuracy and real-time diagnosis, and the environment is easy to access for maintenance.
- Cost-sensitive projects or old system renovations:
- When the budget is limited or the existing control system (such as old PLC/DCS) only supports analog input, they are selected to save costs.
- Extremely simple or high-reliability requirement situations:
- In some situations that only require "on/off" signals or simple control, the directness and anti-interference ability of analog signals are advantages. Some special safety fields also tend to use pure hardware devices without software to avoid software risks.
- As backup or redundancy for intelligent systems:
- In extremely few ultra-high reliability loops, a non-intelligent transmitter may be connected in parallel as a hardwired backup for the intelligent transmitter.
Non-intelligent pressure transmitters represent a classic, reliable and economical technical route. They solve the fundamental problem in the early stage of industrial automation of "reliably and remotely transmitting on-site pressure signals to the control room".
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.