Compact Water Flow Meters with High-Sensitivity Sensor Core and Robust Interference Resistance
The 400A Series Transmitter is an independently developed device for liquid level measurement. Its core sensor incorporates a built-in diffused silicon element, enhancing both accuracy and reliability.
Featuring a fluid dynamics design and a distinctive arc-shaped housing, this transmitter effectively reduces medium disturbances, ensuring stable performance. It includes a detachable bottom filter to prevent clogging, along with an internal air guide tube and a triple-layer protection system.
Compact and highly efficient, the 400A Series is well-suited for demanding environments. Our manufacturing process—from research and development to production assembly, calibration, and quality inspection—strictly adheres to international quality standards.
Specifications
Model | 400A Series | ||||||
Pressure Type | Gauge Pressure, Absolute Pressure | ||||||
Range | 0-1 m…300 m(Customizable) | ||||||
Accuracy | ≤ ±0.5%F.S(Standard); ≤ ±0.25%F.S;Customizable | ||||||
Electrical Performance | 2-wire | 3-wire | 4-wire | ||||
Output Signal | 4~20mA | 0~5V | 0~10V | 0.5~4.5V | 10~90% Ratio | RS485 | |
Supply Voltage | 8~32V DC | 8~32V DC | 12~32V DC | 8~32V DC / 5V DC | 3~5.5V DC | 8~32V DC | |
Operating Temperature | -30℃~85℃ | ||||||
Storage Temperature | -30℃~85℃ | ||||||
Compensation Temperature | 0~60℃ | ||||||
Electrical Connection | Straight Connection | ||||||
Materials | Housing | SUS304 Stainless Steel (Standard), 316L Stainless Steel (Optional), Customizable | |||||
Sensor | Diffused Silicon (Standard) | ||||||
O-ring | NBR (Standard), PTFE/CR/EPDM (Optional) | ||||||
Response Time | ≤10ms | ||||||
Protection Rating | IP68 | ||||||
Measuring Medium | Compatible with SUS304 or 316L stainless steel | ||||||
Zero Temperature Drift | 0.05%FS/℃( ≤100kPa) | ||||||
Long-term Stability | 0.2%F.S±0.05%/year | ||||||
Overload Pressure | 150%F.S. |
Dimensions and Wiring Definitions
Wiring Definitions
Wire Color | 2-wire | 3-wire | 4-wire |
Red | Power (Vcc+) | Power (Vcc+) | Power (Vcc+) |
Black | Signal(Iout) | Power (GND) | Power (GND) |
Yellow | Ground | Ground | Ground |
Green | / | Signal(Vout) | 485A |
Blue | / | / | 485B |
Ordering Guide
A: Our technical team has over 20 years of experience in the sensor industry. We provide rapid, professional solutions tailored to our customers' application scenarios and welcome personalized customization requests. With a dedicated production quality management team, we ensure strict quality control while delivering goods within a 30-day lead time.
A: Our certifications include:
Additionally, we hold over 20 national patents.
A: Yes, we provide custom development services tailored to your needs.