129CP Series Digital Water Pressure Sensor
Pressure Sensors
Designed to be integrated into water meters, the 129CP pressure sensor is housed in a small and innovative package ideal for use in tight spaces. The sensor is robust and reliable to withstand harsh conditions such as water hammer over the life of the sensor and the water pressure sensor uses state of the art electronics to accommodate digital I2C output, low power consumption, fast response time, and end-of-conversion interrupt.
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Part #129CP11-M16S1-0
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Contact UsFeatures
- 0-16 bar (0-232 psi) sealed gauge
- 0-230 psi sealed gauge
- Digital I2C output
- Very low power consumption (<6 μA at 1Hz measurement)
- Small size (18 mm x 23.5 mm x 12.5 mm)
- Easy design integration
- Robust and reliable design
- Compatible with drinking water safe application
Applications
- Residential water meters
- Water networks
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Specifications
| Supply Voltage | 1.7 - 3.6 VDC |
| Digital Output | I2C |
| Resolution | 14 bit min |
| Supply Current: Update Mode | 750 to 1100 μA |
| Supply Current: Sleep Mode | 0.07 to 1 μA |
| Wake-Up Response Time | 0.5 ms max |
| Reverse Voltage | -0.3 VDC |
| ESD | IEC 61000-4-2 |
| Radiated Immunity | IEC 61000-4-3 |
| Electrical Connection | Flex cable (see dimensions section) |
| ESD | Conforms to IEC 61000-4-2 Level 3, 4 kV contact / 8 kV air |
| Pressure Range | 0 - 16 bar (0 - 232 psi) |
| Pressure Reference | Sealed Gauge |
| Proof Pressure | 2X FS(1) Pressure |
| Burst Pressure | 2X FS(1) Pressure |
| Accuracy (Best Fit Straight Line)(2) | +/- 1%FS(1), 25°C |
| Accuracy (Total Error Band)(3) | +/- 2%FS(1), 4 to 40°C |
| Fluid Compatibility* | Potable Water |
| Wetted Materials |
Sense Element: 96% Aluminia (Al2O3) Pressure Port: 304 L Stainless Steel Inner seal: EPDM Outer seal: EPDM |
* Other fluid compatibility available upon request
(1) Full Scale Pressure = Pmax - Pmin
(2) Best fit straight line accuracy includes errors from non-linearity, non-repeatability, and hysteresis
(3) Total error band accuracy includes errors from non-linearity, non-repeatability, and hysteresis, zero offset, full span offset, and thermal effects
| Random Vibrations | DIN IEC 60068-2-27: 5G (2-2 kHz) |
| Mechanical Shock | DIN IEC 60068-2-27: 40G1/2 HL SINE |
| Operating Temperature | 2°C to 85°C |
| Storage Temperature | -25°C to 85°C |
| Waterhammer | 100K cycles 0 to 25 bar (0 to 360 psi) |
| Operational Pressure Cycling | 1M |
| Pin | Designation | Description |
| 1 | EOC | End-of-conversion and Output Interrupt |
| 2 | GND | Ground |
| 3 | SDA | Bi-directional data for I2C |
| 4 | SCL | Clock input for I2C interface |
| 5 | VDD | Power supply |
| 6 | n.c. | No connection |