Flush Diaphragm Ceramic Pressure Sensor Cell
ESS502 Flush Diaphragm Ceramic Pressure Sensor Cell is made with a ceramic base body glued to flush diaphragm and work following the piezoresistive principle.
The Wheatstone bridge is screen-printed on either one side of the flush ceramic diaphragm or on pcb itself, which is subsequently adhered to the sensor’s body.
Pressure and temperature calibration is conducted electronically via the on-board ASIC, and the electronic system provides offset and span correction. Due to the outstanding chemical resistance of Al2O3 ceramic, cells of ESS502 are compatible with nearly all aggressive media.
ESS502 Flush Diaphragm Pressure Sensor Cell are available with two kinds size: 18*6.35mm (standard type) and 18*3.5mm (thin type), both are thermally compensated by laser-adjustable PTC resistors and the use of ceramic ensures a high linearity across the entire range of measurement, reducing effects of hysteresis to a minimum.
Features & Benefits
- Pressure range 0-5bar‐200bar
- Flush Diaphragm type
- Excellent resistance to corrosion and abrasion
- Absolute measurement available
- Thermally compensated
- Extended customization
Applications
- Cooling equipment & A/C system
- Automotive and vehicle
- Industrial process control
- HVAC system
- Refrigeration equipment
- Air conditioning unit
ESS502 Pressure Range & Overpressure
| Range (bar) | Thickness (mm) | Overpressure (bar) | Burst pressure (bar) |
|---|---|---|---|
| ESS502 Standard Type (Φ6.35mm) |
|||
| 0-5 | 6.30±0.05 | >20 | >40 |
| 0-10 | 6.35±0.05 | >30 | >50 |
| 0-16 | 6.35±0.05 | >48 | >80 |
| 0-20 | 6.45±0.05 | >60 | >100 |
| 0-25 | 6.45±0.05 | >75 | >125 |
| 0-35 | 6.53±0.05 | >100 | >150 |
| 0-50 | 6.65±0.05 | >150 | >250 |
| 0-70 | 6.65±0.05 | >200 | >300 |
| 0-100 | 6.78±0.05 | >250 | >400 |
| 0-200 | 6.95±0.05 | >400 | >600 |
| ESS502 Thin Type (Φ6.35mm) | |||
| 0-5 | 3.30±0.05 | >20 | >40 |
| 0-10 | 3.30±0.05 | >30 | >50 |
| 0-16 | 3.35±0.05 | >48 | >80 |
| 0-20 | 3.35±0.05 | >60 | >100 |
| 0-25 | 3.45±0.05 | >75 | >125 |
| 0-35 | 3.45±0.05 | >100 | >150 |
| 0-50 | 3.55±0.05 | >150 | >250 |
| 0-70 | 3.65±0.05 | >200 | >300 |
| 0-100 | 3.78±0.05 | >250 | >400 |
ESS502 Technical Specification
| Working voltage | 2-30V DC |
|---|---|
| Impedance | 10.0KΩ±30% |
| Sensitivity | 2.0-4.0mV/V/FS, typical: 3.0 mV/V/FS |
| TCR | ≤100ppm/℃@-40℃~135℃ |
| Offset | 0±0.4mV/V |
| Working temperature | -40℃~135℃ |
| Storage temperature | -40℃~135℃ |
| Thermal offset shift | Tco&Tcs 0.02%FS/℃ Max |
| Non linearity | 0.25%FS Max |
| Hysteresis & repeatability | 0.25%FS Max |
| Response time | <2ms |
| Lifetime & reliability test | >5 million, 0bar -nominal pressure cycle |
| Long term stability | <0.25%FSO @25℃ （No time to accumulate） |
| Insulation | >2KV |
ESS 5 Series Key Features
| Technical Characteristics | |
|---|---|
| Parameter | Description |
| Sensor type | Monolithic, Flush diaphragm, Absolute (A), Gauge (R) or Sealed gauge (S) |
| Technology | Ceramic Piezoresistive |
| Diaphragm material | Ceramic Al2O3 96% (standard), 99.6% or sapphire (on request) |
| Weight | ≤ 8g (ceramic cell only) |
| Response time | ≤ 1ms |
| Supply voltage | 2...36Vdc |
| Offset | ‐ 0.1 ± 0.1 mv/v(Other nominal values available on request) |
| Current cons. | ≤ 3mA @ 10V |
| Operating | -40...+85℃ (-40 °F...+185 °F) |
| Storage temperature | -40...+125℃ (-40 °F...+257 °F) |
| Impedance | 11 ± 30%kΩ |
Download
