NPI-15VC Series Voltage Compensated, Media Isolated, High Pressure Sensors Applications Features • Process control systems • Solid state, high reliability • Hydraulic systems and valves • High sensitivity with 100 mV ± 1% FSO at 10 VDC • Automobiles and trucks • 316L stainless steel, IsoSensor design • Biomedical instruments • Linearity 0.1% FSO typical • Refrigeration and HVAC controls • Thermal accuracy 0.2% FSO typical • Appliances and consumer electronics • Ship and marine systems • Four standard ranges: 500, 1000, 3000, and 5000 psi (34.5, 69, 207, and 345 bar) available in absolute or sealed gage • Aircraft and avionic systems • Standard configurations include: —1/2–20 UNF threaded male port with 1.0 in (24.4 mm) flange —0.59 in (14.98 mm) diameter x 0.87 in (22.09 mm) long cylinder with o-ring seals —1/4–18 NPT male port with 7/8 in flange —1/8–27 NPT male port with 7/8 in flange Amphenol Advanced Sensors • Custom configurations and other pressure ranges available. Please consult factory NPI-15VC Series Specifications Description The NovaSensor voltage compensated NPI-15VC Series offers the performance of our current compensated sensors with the convenience of using a voltage supply. Voltage compensation allows the sensor to be connected directly to the power supply, thereby eliminating the need for additional components to construct a constant current source. These sensors enable field interchangeability with a calibrated FSO of 100 mV ±1 %. As with all NPI media isolated sensors, they are designed to operate in hostile environments and yet give the outstanding sensitivity, linearity, and hysteresis of a silicon sensor. The piezoresistive sensor chip is housed in a fluid-filled cylindrical cavity and isolated from the measured media by a stainless steel diaphragm and body. The NPI Series employs SenStable® processing technology, providing excellent output stability. The modular design allows for a variety of pressure port modules which are hermetically welded to the sensor head module. Standard types A, B, H, and J are shown to the right. For compensation of temperature effects, a resistor network is supplied on a hybrid ceramic substrate. The IsoSensor design minimizes temperature errors to provide a maximum offset error of 1.0% FSO and a maximum full scale output error of 0.75% FSO over the 32°F to 158°F (0°C to 70°C) compensated range. NPI-15VC Series dimensions NPI-15VC Series schematic diagram NPI-15VC Series Specifications Parameter General Pressure Range Value Units Notes 0 to 500 psi 3,447 kPa 0 to 1,000 psi 6,894 kPa 0 to 3,000 psi 20,682 kPa 0 to 5,000 psi 34,470 kPa Maximum Pressure 2 x rated pressure Electrical @ 77°F (25°C) unless otherwise stated Input Excitation 10 VDC 15 VDC maximum Insulation Resistance 100M Ω @ 50 VDC Input Impedance (minimum) 4,000 Ω Output Impedance 5,000 Ω ± 20% Bridge Impedance 5,000 Ω ± 20% Environmental Temperature Range Operating (9) –40 to 257°F (–40°C to 125°C) Compensated Range 32 to 158°F (0°C to 70°C) Vibration 10 gRMS 20 to 2000Hz Shock 100 g 11 milliseconds Life (Dynamic Pressure Cycle) 10 x 106 cycles Mechanical (1) Weight 0.06 lb (28 g) NPI–15A–XXX 0.10 lb (47 g) NPI–15B/H/J–XXX Media Compatibility All corrosive media compatible with 316L stainless steel Case and Diaphragm Material 316L stainless steel Recommended O-Ring Type A: 0.472 in (12 mm) ID x 0.059 in (1.5 mm) wall Type B: 2-013 per ISO 3601/1 Parameter Units Min. Typical Max. Notes Performance Parameters 500, 1,000, 3,000, & 35,000 psi (Note 1,8) Full Scale Output mV 99 100 101 2 Linearity %FSO –0.35 0.1 0.35 3 Hysteresis and Repeatability %FSO –0.05 0.01 0.05 Thermal Accuracy of Offset %FSO –1.0 0.2 1.0 4 Thermal Accuracy of FSO %FSO –0.75 –0.2 0.75 4 Thermal Hysteresis %FSO –0.2 ±0.1 0.2 5 Short-Term Stability of Offset µV/V 5 6 Short-Term Stability of FSO µV/V 5 6 Long-Term Stability of Offset %FSO 0.1 7 Long-Term Stability of FSO %FSO 0.1 7 1. 2. 3. 4. 5. 6. 7. 8. 9. Warranty NovaSensor warrants its products against defects in material and workmanship for 12 months from the date of shipment . Products not subjected to misuse will be repaired or replaced. NovaSensor reserves the right to make changes without further notice to any products herein. NovaSensor makes no warranty, representation or guarantee regarding the suitability of its products for any particular application, nor does NovaSensor assume any liability arising out of the application or use of any product or circuit and specifically disclaims and all liability without limitation consequential or incidental damages. The foregoing warranties are exclusive and in lieu of all other warranties, whether written, oral, implied or statutory. No Implied statutory warranty of merchantability or fitness for particular purpose shall apply. Ordering Information NPI-15 Code Pressure Port Type A No port B 1/2-20 UNF H 1/4-18 NPT J 1/8-27 NPT Code Pressure Ranges in psi 500 500 psi (3447 kPa) 1KØ 1000 psi (6894 kPa) 3KØ 3000 psi (20,632 kPa) NPI-15A only 5KØ 5000 psi (34,470 kPa) NPI-15A only Code Compensation A Absolute S Sealed gauge Code Voltage V Constant Voltage Excitation NPI-15 Performance with offset , thermal accuracy of offset and thermal accuracy of FSO compensation resistors. FSO with 10 VDC. Linearity by best fit straight line. 32°F to 158°F (0°C to 70°C) with reference to 77°F (25°C). 32°F to 158°F (0°C to 70°C), by design. Normalized offset/bridge voltage_100 hours, typical value, not tested in production. One year, typical value, not tested in production All values measured at 77°F (25°C) and at 10 VDC, unless otherwise noted. Reduced performance outside compensation range. - Typical model number Amphenol Advanced Sensors www.amphenol-sensors.com © 2014 Amphenol Corporation. All Rights Reserved. Specifications are subject to change without notice. Other company names and product names used in this document are the registered trademarks or trademarks of their respective owners. AAS-920-258C-10/2015