HE Series — European OEM Standard
HE23 Ceramic Precision Pressure Transmitter
Ceramic piezoresistive pressure sensor with high elasticity, corrosion resistance, and excellent thermal stability. Wide temperature compensation from -40 to 125°C with ±0.5% FS accuracy — ideal for refrigeration, pneumatic systems, and industrial automation.
±0.5%
FS Accuracy
2–400 bar
Pressure Range
5 Outputs
Signal Options
≤5 ms
Response Time
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Overview
The HE23 Ceramic Precision Pressure Transmitter is part of the HE Series — modular, European OEM-standard product line designed for cost-effective industrial measurement. It uses a ceramic diaphragm-based piezoresistive sensor that delivers excellent corrosion resistance, wear resistance, and thermal stability across a wide operating temperature range.
Ceramic is recognized for its high elasticity and resilience against shock and vibration. The thick-film resistor technology on the ceramic substrate enables operation from -40°C to 135°C while maintaining high measurement accuracy and long-term stability. With electrical insulation exceeding 2 kV and strong output signal characteristics, the HE23 combines performance with affordability for volume OEM applications.
The HE23 offers five output signal options (4–20 mA, 1–5 V, 0–5 V, 0.5–4.5 V, and ratiometric 0.5–4.5 V/5 V), multiple process connections, and full EMC protection per IEC standards — making it suitable for process control, hydraulic and pneumatic equipment, HVAC, automotive, and agricultural machinery applications.
Technical Specifications
| Parameter | Specification |
|---|---|
| Sensing Technology | Ceramic piezoresistive (thick-film on ceramic diaphragm) |
| Measurement Range | 0–2 bar to 0–400 bar (0–29 psi to 0–5,801 psi) |
| Pressure Type | Gauge (G) |
| Comprehensive Accuracy | Typical: ±0.5% FS | Max: ±1.0% FS |
| Long-term Stability | Typical: ±0.2% FS/year | Max: ±0.4% FS/year |
| Resolution | 0.02% FS |
| Output Signals | 4–20 mA | 1–5 V | 0–5 V | 0.5–4.5 V | 0.5–4.5 V/5 V (ratiometric) |
| Response Time | ≤ 5 ms |
| Overload Pressure | 1.5–2× full scale (with damper: withstands 300% transient shock) |
| Burst Pressure | 4× FS (for ranges ≤ 60 MPa) |
| Temperature Compensation | -20 to +80°C (<2.5% error full range) | Special: -40 to +125°C |
| Zero/Span Temp Coefficient | Typical: ±0.02% FS/°C | Max: ±0.04% FS/°C |
| Lifecycle | > 1 × 10⁶ cycles (10–90% FS) |
| Wetted Material | 304 Stainless Steel & Ceramic |
| Media Compatibility | Gas or liquid compatible with 304 SS and ceramic |
| EMC | IEC compliant (EMC protection) |
| Process Connection | G1/4 male | 1/4 NPT | M12×1.5 | Custom |
| Electrical Connection | Direct cable 1 m | Hirschmann A-type | M12 connector (angle/straight) |
Key Features
Ceramic Piezoresistive Sensing
Al₂O₃ ceramic diaphragm with thick-film resistors provides exceptional corrosion resistance, high elasticity, and electrical insulation exceeding 2 kV.
Wide Temperature Range
Standard compensation from -20 to +80°C with <2.5% full-range error. Extended compensation available from -40 to +125°C for extreme environments.
Multiple Output Options
Five output signals: 4–20 mA (2-wire), 1–5 V, 0–5 V, 0.5–4.5 V, and ratiometric 0.5–4.5 V/5 V for direct MCU interface.
High Overload Protection
1.5–2× FS overload capacity with optional damper for 300% transient shock absorption. Burst pressure rated at 4× FS for ranges up to 60 MPa.
Compact & Cost-Effective
Small form factor with integrated design and low unit cost — purpose-built for high-volume OEM applications where budget and size matter.
EMC & IEC Compliant
Full electromagnetic compatibility protection per IEC standards ensures reliable operation in electrically noisy industrial environments.
Applications
Refrigeration & Compressors
Monitor suction and discharge pressures in refrigeration compressors and HVAC chillers with ceramic corrosion resistance.
Pneumatic Systems
Precise pneumatic pressure measurement for servo valves, actuators, and compressed air lines in industrial automation setups.
Agricultural Machinery
Rugged pressure sensing for agricultural hydraulic systems, spraying equipment, and field machinery exposed to vibration and dust.
Industrial Automation
OEM pressure monitoring in PLC-controlled production lines, packaging machines, and automated assembly systems.
Automotive Systems
Pressure measurement in automotive braking, transmission, and engine management systems with high vibration tolerance.
Process Control & Chemical
Ceramic corrosion resistance makes the HE23 suitable for chemical processing, environmental monitoring, and medical instrumentation.
Ordering Guide
Use the model code below to configure your HE23. Example: HE23-G-016B-V3-F2-W1-S = HE23 ceramic piezoresistive sensor, 0–16 bar gauge, 0.5–4.5 V output, G1/4 male thread, 1 m shielded cable, with transient damper.
| Position | Code | Options |
|---|---|---|
| Model | HE23 | Ceramic Piezoresistive Pressure Transmitter |
| Pressure Type | G | Gauge |
| Range | 002B–400B | 2, 4, 6, 10, 16, 25, 40, 60, 100, 160, 250, 400 bar |
| Output | A1/V1/V2/V3/V4 | A1 = 4–20 mA | V1 = 1–5 V | V2 = 0–5 V | V3 = 0.5–4.5 V | V4 = 0.5–4.5 V/5 V |
| Thread | F2/F3/F4/F0 | F2 = G1/4 male | F3 = 1/4 NPT | F4 = M12×1.5 | F0 = Custom |
| Electrical | W1/W2/W3/W4 | W1 = Direct cable 1 m | W2 = Hirschmann A | W3 = M12 angle 1 m | W4 = M12 straight 1 m |
| Options | S/T | S = With transient damper | T = Special (specify in notes) |
Frequently Asked Questions
Need a Ceramic Pressure Sensing Solution?
Whether you need a single ceramic transmitter for a corrosive environment or a high-volume OEM supply for your production line, our engineering team can help you select the right HE23 configuration, output signal, and process connection for your application.
Our engineers typically respond within 12 business hours with detailed technical specifications and pricing.