OMEGA's PX4600 Series consists of accurate, highly reliable pressure transducers suitable for printed circuit board mounting. The small size and light weight of the PX4600 tranducers make them ideal for tough vibration and shock environments. The sensor is a small silicon chip with 4 diffused silicon strain gages. Laser-trimmed resistors provide excellent temperature compensation from -54 to 121ºC (-65 to 250°F), and users can adjust zero balance and span to tight tolerances. The unusually high performance of this transducer comes from a 4-active arm bridge sensor using a micromachined diffused silicon diaphragm and proprietary thin-film media and dielectric isolation barriers.
SPECIFICATIONS Electrical Excitation: 10 Vdc Output: 30 mV ±10% @ 10 Vdc Zero Balance: 0 mV ±5% FSO Input Resistance: 2000 Ω minimum Output Resistance: 1000 to 1500 Ω Dielectric Isolation Resistance: 100 MΩ min @ 50 Vdc applied between the case or conductive media and the bridge circuit
PERFORMANCE Accuracy: ±0.25% FSO combined linearity, hysteresis, and repeatability Sensing Element: 4-active-arm bridge using a micro-machined diffused silicon diaphragm sensor and thin-film media and dielectric isolation barriers. Temperature Sensor: Output resistance @ 24°C (75°F) 900 to 1500 Ω Temperature Coefficient: 8% min, 10% max per 55.5°C (100°F)
ENVIRONMENTAL Operating Temperature: -55 to 150°C (-67 to 300°F) Compensated Temperature: -55 to 121°C (-67 to 250°F) Thermal Effects: Zero: ±0.036% FSO/°C Span: ±0.036% FSO/°C Vibration Sensitivity: At 35 g peak sinusoidal vibration from 10 Hz to 2000 Hz (½' D.A.), the output shall not exceed 0.04% FSO/g for 15 psi range, decreasing to 0.005% FSO/g for 100 psi and above. Natural Frequency: >35 kHz for 100 psi range Shock: 100 g, 11 ms half sine wave without damage MTBF: Typical 100,000 hours @ 55°C (131°F), fixed-wing aircraft service
PRESSURE Standard Ranges: 0 to 15, 20, 50,100, 200, 300 psi gage and absolute pressure Proof Pressure: 250% rated pressure, 500 psi max, will not cause changes in performance beyond specified tolerance Burst Pressure: 300% rated pressure, 500 psi max MECHANICAL Wetted Parts: Nitride, Pyrex® glass, epoxy and Kovar® Weight: 5 g (0.2 oz) maximum
We purchase several of the PX4600 series transducers from Omegadyne which we solder to our printed circuit boards. Can you provide the specifications for the recommended mounting distance from the PCBA surface and any other specifications for soldering.
Asked by: Darwin
Omega Engineering recommends a minimum of .125 gap between the PX4600 sensor housing and printed circuit board to minimize stress to the glass hermitic seals during temperature swings.