HPSD 3000 Pressure Transducer

Transcription

1 General description Applications transducer HPSD 3000 is an OEM pressure sensing device. Signal conditioning consis of complete temperature compensation ASIC. High preformance and accuracy enables use of this transducer in many applications. Programmable temperature compensation provides 1% total error over 0 to 70 C temperature range. Operating from single 5 supply, wide compensated tempertaure range and standard, ratiometric 0.5 to 4.5 output provides OEM users maximum freedom for any type of application with dry air or non-corrosive gases or liquids. The model HPSD 3000 is designed for through hole PCB assembly with one or two pressure tubes. The whole group consis for pressure ranges from 10 mbar to 7 bar. Gage, and absolute versions are available for this group. Features Single 5 supply voltage Easy to use package Wide compensated range (0 to 70 C) Total accuracy down to 1% over 0 to 70 C, all effec included (maximum) Standard 0,5 4,5 voltage output Up to 15 bi I2C output (pressure + temperature) High performance OEM applications Gage, and absolute pressure HAC Medical instrumentation Respirators Process control Leak detection Altimeters 1/8

2 2/8 Available types overview TAMB = 25 C CC = 5, unless otherwise noted Low pressure range range ID group types OUT Temperature ranges 1) Over pressure 2) Burst pressure 10 mbar 20 mbar (0,15 psi) (0,3 psi) HPSD M HPSD M /gage/ /gage/ Operating: -25 to 85 C Compensated: 0 to 70 C Storage : -40 to 125 C 100 mbar 200 mbar 150 mbar 300 mbar High pressure range range ID group types OUT Temperature ranges 1) Over pressure 2) Burst pressure 50 mbar (0,8 psi) HPSD M /gage/ 100 mbar (1,5 psi) HPSD M /gage/ 500 mbar 750 mbar 1000 mbar 1500 mbar mbar 350 mbar (5 psi) - 1 bar (15 psi) - 2 bar (30 psi) - 4 bar (60 psi) - 7 bar (100 psi) - HPSD 3000HPS D3000HPSD 3000HPSD 3000HPSD 3000tial/gage tial/gage tial/gage tial/gage tial/gage 350M 001B 002B 004B 007B /gage/ /gage/ /gage/ /gage/ /gage/ / / / / absolute absolute absolute absolute Operating: -25 to 85 C Compensated: 0 to 70 C Storage : -40 to 125 C 1 bar 3 bar 6 bar 8 bar 14 bar 1,7 bar 5 bar 10 bar 12 bar 21 bar l l

3 3/8 Performance characteristics TAMB = 25 C CC = 5, unless otherwise noted Parameter Power supply Supply voltage Current consumption Symbol CC ICC Min. Type Max. Unit 4 5,25 6,5 ma 4,75 3) Analog output (pressure) 4) Offset voltage 5) Full scale output (FSO) 6) Full scale span (FSS) Offset voltage ( devices) O FS FSO O 0,50 4,50 4,00 2,50 O FS FSO O coun coun coun coun To Ts coun coun Ea Ea Ea 0,5 0,4 0,3 ±2 ±1,5 ±0,8 Eta Eta Eta 0,7 0,6 0,5 ±2,5 ±2 ±1 Di DO Ert Er El RL ,5 ±0,05 ±0,1 bit bit ms % FSO % FSO k 3) Digital output (pressure), 15 bi 4) Offset voltage 5) Full scale output (FSO) 6) Full scale span (FSS) Offset voltage ( devices) 7) Digital output (temperature), 15 bi Temperature 0 C Temperature 70 C 8) Accuracy 25 C Low pressure (10 mbar FS devices) Low pressure (20 to 100 mbar FS devices) Standard pressure 9) Total accuracy 0 to 70 C Low pressure (10 mbar FS devices) Low pressure (20 to 100 mbar FS devices) Standard pressure (all other devices) Resolution A/D converter D/A converter Response time 10) Repeatability 11) Nonlinearity & pressure hysteresis (BFSL) Load resistance Media compatibility Weight W 2 See spec. note 3 12), 13) ±0,3 g

4 4/8 1) 2) 3) 4) 5) 6) 7) 8) Over pressure is the maximum pressure which may be applied without causing damage to the sensing element. Burst pressure is the maximum pressure which may be applied without causing leakage damage to the sensing element. Analog output signal is ratiometric to power supply cc, digital signal is not ratiometric to the power supply. Offset voltage is the voltage output at zero pressure. Full scale output is the voltage output at full pressure range. Full scale span is the algebraic difference between the output at full scale pressure range and offset. Digital output signal (temperature) is not ratiometric to power supply cc. Temperature data are read directly on the sensing element. Accuracy includes all effec (offset, span, nonlinearity, pressure hysteresis and repeatability) at room temperature and represen maximum deviation of transducer signal from ideal characteristic. 9) Total accuracy includes all effec (offset, span, nonlinearity, pressure hysteresis and repeatability) included with all temperature effec of offset and span. It describes overall error and represen maximum deviation of transducer signal from ideal characteristic in compensated temperature range from 0 to 70 C. 12) Media compatibility: on pressure port P1: clean, dry and noncorrosive gases to silicon, RT, gold, ceramics Al2O3, epoxy, nickel. 13) Media compatibility: on pressure port P2: noncorrosive gases or liquids to silicon, Pyrex, RT, ceramics Al2O3, epoxy, nickel. I2C communication General description HPSD 3000 pressure transducer have I2C communication availability. When this device is connected to I2C digital bus, the digital readou with resolution up to 15 bi of pressure (1st and 2nd byte) and temperature (3rd and 4th byte) can be read from serial register of the internal ASIC. (normally microcontroller). The I2C bus is controlled from the master which generates START and STOP conditions. Digital I2C interface States descriptions: Idle period: the bus is free when both data line (SDA) and clock line (SCL) are HIGH. START condition (S): is generated in transition of SDA line from HIGH(H) to LOW(L) when SCL line (clock) is HIGH. It can be only generated by the master. Each data request needs to star with START condition.

5 5/8 STOP condition (P): is generated in transition of SDA line from LOW(H) to HIGH(L) when SCL line (clock) is HIGH. It can be only generated by the master. Each data request needs to end with STOP condition. DATA valid (D): Data is transmitted in bytes (8 bi) starting with pressure data (2 bytes) with the bit is transferred with each clock pulse. alid data are presented after start condition when data line is stable during HIGH clock is generated. SDA changes must be done while clock is LOW. ACKNOWLEDGE (A): After receiving of each byte master or slave must pull down SDA line to LOW as acknowledge for receiving the data. For that reason master must generate an extra clock. If acknowledge is missed slave becomes inactive, which means that master must either repeat last command or to generate STOP condition. SLAE address: Default slave address of HPSD 3000 devices are factory calibrated to 0x78. multi-slave communication where the user can connect up to 127 devices with unique addresses to the same I2C bus. After generating START condition master sends address containing 7 bi followed by a R/W (read= 1, write= 0 ). I2C communication protocol: Trans

6 6/8 I2C interface parameters: Parameter Input HIGH level Input LOW level Output LOW level Pull up resistor Clock frequency SCL Load capacitance (SDA) Input capacitance (SCL/SDA) cer ure ure Min ure Max ure Unit %cc %cc %cc Ω khz pf pf essure I2C application circuit: Both I2C lines have to be connected to CC with pull up resistors (recommended 4,7 k ohms), additional serial resistors 300 ohms recommended also (optional).

7 7/8 Outline dimensions and pinout P2 Not used for absolute type Note: positive pressure to port P1 P1 Not used for gage type

8 8/8 Ordering guide Transducer type HPSD 3000 range 010M type D direction 0 port P tube S 020M G B N L 050M A 100M 350M 001B 002B 004B 007B range type tube 010M 10 mbar D Differential S SHORT (8.3mm) 020M 20 mbar G Gage L LONG (12.5mm) 050M 50 mbar A Absolute (for p 1 bar) 100M 100 mbar 350M 350 mbar 001B 1 bar 0 002B 2 bar B 004B 4 bar 007B 7 bar direction 0 to press. range -press range to +press. range (biderectional) port P Positive pressure on P1 N Negative pressure on P1

9 Headquarter Switzerland: Pewatron AG Thurgauerstrasse 66 CH-8050 Zurich Phone Office Germany: Pewatron Deuchland GmbH Edisonstraße 16 D Unterschleißheim Phone We are here for you. Addresses and Contac. Sales Germany & Austria Postcode Postcode Geometrical sensors Sensor elemen Kurt Stritzelberger Gerhard etter Thorsten Ravagni Phone Mobile Phone Mobile Phone kurt.stritzelberger@pewatron.com gerhard.vetter@pewatron.com thorsten.ravagni@pewatron.com Postcode Postcode Postcode Austria Sales Switzerland & Liechtenstein Sales International Key Accoun Postcode Postcode Basil Frei Christian Mohrenstecher Peter Felder Phone Mobile Mobile Phone Mobile basil.frei@pewatron.com christian.mohrenstecher@pewatron.com peter.felder@pewatron.com Sensors Gas sensors / Gas sensor modules Load cells Flow / Level / Medical produc Philipp Kistler Phone philipp.kistler@pewatron.com Dr. Thomas Clausen Phone thomas.clausen@pewatron.com Dr. Adriano Pittarelli Phone adriano.pittarelli@pewatron.com Accelerometers / Level Flow sensor elemen Power supplies Linear position sensors Angle sensors Thorsten Ravagni Phone thorsten.ravagni@pewatron.com Sebastiano Leggio Phone sebastiano.leggio@pewatron.com Eric Lech Phone eric.lech@pewatron.com Drive technology CH Postcode / DE Drive technology CH Postcode / AT / IT / FR Current sensors Power solutions Roman Homa Mobile roman.homa@pewatron.com Christian Mohrenstecher Mobile christian.mohrenstecher@pewatron.com Osman Coban Phone osman.coban@pewatron.com Sales Other Countries / Product Management Competitive sensor & power supply solutions worldwide