Document
SX Series
Pressure sensors
FEATURES
· 0...1 to 0...300 psi · Absolute, differential and gage devices · High impedance bridge · Low power consumption for battery operation
www.DataSheet4U.com
GENERAL DESCRIPTION
The SX series of pressure sensors provides the most cost effective method of measuring pressures up to 300 psi. These sensors were specifically designed to be used with non-corrosive and non-ionic media, such as air and dry gases. Convenient pressure ranges are available to measure differential, gage and absolute pressures from 0 to 1 psi (SX01) up to 0 to 300 psi (SX7300D). The absolute (A) devices have an internal vacuum reference and an output voltage proportional to absolute pressure. The differential (D) devices allow application of pressure to either side of the diaphragm and can be used for gage or differential pressure measurements. However, 300 psi (SX7300D) can be applied to pressure port P2 only. Pressure port P1 is able to handle operating pressures up to 150 psi only. This product is packaged either in SenSym's standard low cost chip carrier "button" package, a plastic ported "N" package, a metal TO can package or a dual inline package (DIP). All packages are designed for applications where the sensing element is to be integral to the OEM equipment. Scale: 1 cm ½ inch
APPLICATIONS
· Industrial controls · Pneumatic controls · Medical instrumentation · Barometry
EQUIVALENT CIRCUIT
Vs
These packages can be o-ring sealed, epoxied, and/or clamped onto a pressure fitting. A closed bridge 4-pin SIP configuration is provided for electrical connection to the button or "N" package. The TO can offers a 5-pin open bridge configuration. Because of its high-impedance bridge, the SX series is ideal for portable and low power or battery operated systems. Due to its low noise, the SX is an excellent choice for medical and low pressure measurements.
+
Output
ELECTRICAL CONNECTION
Button sensor
GND out + +VS out 1 2 3 4
NC NC
Button sensor or "N" package
Bottom view (open bridge)
Out+ GND +Vs 7 Out6 5 8 1 2 43 NC +Vs P2 vent hole for gage devices only
P1
Vs
+Vs +Vs P2 4 1 out + out GND GND out - out + vent hole 1 P1 4 +Vs out + GND +Vs out 1 P1 P2 4 +Vs +Vs
Output
SXxxxGD2 DIP
SXxxxAD2 SXxxxD4 DIP
+
TO can or DIP package
The polarity indicated is for pressure applied to: SX... : P1 (forward gage) SX...AS/GSO : P1 (forward gage) SX...AD2 : P1 (forward gage) SX...GD2 : P2 (backward gage) SX...DD4 : P2 (backward gage)
March 2004 / 052
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http://www.sensortechnics.com
SX Series
Pressure sensors
PRESSURE SENSOR CHARACTERISTICS
Maximum ratings (for all devices)
Suppy voltage, V S Temperature ranges Operating Storage Maximum pressure at any port11 www.DataSheet4U.com Lead temperature (soldering 4 sec.) +12 VDC -40°C to +85°C -55°C to +125°C 150 psig 250 °C Proof pressure10 SX01 SX05 SX15 SX30 SX100 SX150 SX7300 forward gage, P1 SX7300, backward gage, P2 20 psi 20 psi 30 psi 60 psi 150 psi 200 psi 250 psi 500 psi
Part number
SX01... SX05... SX15... SX30... SX100... SX150... SX7300 forward gage SX7300 backward gage
Operating pressure
0 - 1 psid 0 - 5 psid 0 - 15 psi (a) d 0 - 30 psi (a) d 0 - 100 psi (a) d 0 - 150 psi (a) d 0 - 100 psig 0 - 300 psig
Proof pressure 10 Min.
20 psi 20 psi 30 psi 60 psi 150 psi 200 psi 250 psi 500 psi 15 mV 50 mV 75 mV 75 mV 100 mV 75 mV --45 mV
Full scale span Typ.
20 mV 75 mV 110 mV 110 mV 150 mV 110 mV --70 mV
Max.
25 mV 100 mV 150 mV 150 mV 200 mV 150 mV --95 mV
PERFORMANCE CHARACTERISTICS1 SX01, SX05
Characteristics
Temperature coefficient of span6,9 Zero pressure offset TA = 25°C12 Temperature coefficient of offset5,9 Combined linearity and hysteresis 3 Long term stability of offset and sensitivity 8 Response time (10 % to 90 %)7 Input resistance TA = 25°C Temperature coefficient of resistance6,9 Output impedance Repeatability 4
Min.
-2550 -35 ----------+690 -----
Typ.
-2300 -20 +4 0.2 0.1 0.1 4.65 +750 4.65 0.5
Max.
-2050 0 --0.5 ------+810 -----
Unit
ppm/°C mV µV/V/°C %FS mV ms kΩ ppm/°C kΩ %FS
SX15..., SX30..., SX100..., SX150...
Characteristics
Temperature coefficient of span6, 9 Zero pressure offset TA = 25°C12 Temperature coefficient of offset5, 9 Combined linearity and hysteresis 3 Long term stability of offset and sensitivity 8 Response time (10% to 90%)7 Input resistance TA = 25°C Temperature coefficient of resistance6, 9 Output impedance Repeatability 4
Min.
-2400 -35 ----------+690 -----
Typ.
-2150 -20 +4 0.2 0.1 0.1 4.65 +750 4.5 0.5
Max.
-1900 0 --0.5 ------+810 -----
Unit
ppm/°C mV µV/V/°C %FS mV ms kΩ ppm/°C kΩ %FS
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March 2004 / 052
http://www.sensortechnics.com
SX Series
Pressure sensors
SX7300...
Characteristic
Temperature coefficient of span6,9 Zero pressure offset TA = 25°C Temperature coefficient of offset5,9 Combined linearity and hysteresis 3 Long term stability of offset and sensitivity 8 Response time (10 % to 90 %)7 Input resistance TA = 25°C www.DataSheet4U.com Temperature coefficient of resistance6,9 Output .