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Absolute (PSIa) Brass Pressure Sensors
AEM offer high quality brass PSIa sensors in 30(2BAR), 50 (3.5BAR) and 75 (5BAR). PSIa is referenced to absolute zero. Absolute zero is the pressure measurement when all the pressure exerted by the atmosphere has been removed. The most common use for absolute pressure sensors is reading manifold pressure. PSIa sensors are required of you wish to measure vacuum. A PSIa sensor will read about 14.7 PSI when the sensing element is exposed to atmospheric pressure at sea level however they can be recalibrated to read zero at atmospheric and a negative number at values less than atmospheric pressure.
Which Pressure Sensor is right for you?
There are many different tools that can be used for measurement, but the degree of accuracy is dependent upon the tool. For example, a ruler can measure distance with a good degree of accuracy, but for a more precise measurement a caliper should be used. The difference between a brass pressure sensor and a stainless steel pressure sensor is similar if we think about it in these terms:
Brass Pressure Sensor = Ruler
Use a Brass Pressure Sensor where you need a good reference to what pressure is being seen.
Example: Brass Pressure Sensor used for a Boost Gauge – Reference/Information for knowing manifold pressure, not for ECU calibration.
Stainless Pressure Sensor = Caliper
Use a SS Pressure Sensor where you need exact details of the pressure.
Example: MAP Sensor information for the ECU – Calibration/crucial information for the ECU.
Brass sensors accurate to within 3% of full scale (pressure sensors)
High-quality sealed sensor housings are virtually impervious to automotive fluids (360-degree welded wetted area)
Connector and pins included
30-2131-50 - 50 PSIa or 3.5 Bar Brass Sensor Kit
Accuracy: +/- 3% Full Scale over -40C to 105C includes Repeatability, Hysteresis and Linearity
Operating Temp: -40C to 105C / -40F to 221F
Burst Pressure: 100PSI
Response Time: < 1ms
Vibration:100 to 2000Hz, 20g Sinusoidal, 3 Axes
Sensor Body: Brass
Wetted Materials: 304L & 316L Stainless Steel
Thread: 1/8" NPT Male Thread
Weight: < 85 Grams
Output: .5 to 4.5Vdc Linear
Elec. Termination: Integral weatherproof connector, includes mating connector, pins & pin lock
30-2010 - Air Temp Sensor Kit
Accuracy: < 1.5°C / 2.7°F
Operating Temp: -40C to 135C / -40F to 275F
Resistive Range (Ω): See Table
Thermal Time Constant: < 15 sec. The time required for the sensor to achieve 63.2% of its steady state value when subjected to a step change in ambient temperature [Tc=(Tf-Ti)*63.2%+Ti]. Test medium: silicone oil
Sensor Body Material: Brass
Thread: 3/8" NPT
Hex Size: 3/4"
Installation Torque: 20Nm / 15 ft-lbs
Supply Current: 5Vdc
Electrical Termination: Weatherproof connector. Includes Mating Connector, Pins & Wire Seals
Includes: Air Temp Sensor, 3/8" NPT Alumium Bung, Mating Connector, Pins & Wire Seals