SSIB001-GU9AH5

SSIB001-GU9AH5 SENSORTECHNICS | Alldatasheet

Document overview

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Technical content

Amplified stainless steel pressure sensors www.first-sensor.com www.sensortechnics.com

FEATURES

• 200 mbar to 35 bar, 3 to 500 psi absolute, gage or vacuum pressure (custom pressure ranges on request)
• Amplified analog output and I²C bus interface (SPI on request)
• Precision ASIC signal conditioning
• Calibrated and temperature compensated
• Rugged stainless steel isolated package
• RoHS compliant
• Quality Management System according to ISO 13485:2003 and ISO 9001:2008 SPECIFICATIONS Maximum ratings max. 6.50 VDC Temperature ranges Compensated -20 ... +85 °C Operating -40 ... +120 °C Storage -40 ... +120 °C Insulation resistance 100 M Ω at 100 VDC Proof pressure1 2 x rated pressure Burst pressure2 4 x rated pressure ELECTRICAL CONNECTION niPn oitcennoC 1s V+ 2D NG 3t uoV 4* C/I 5L CS 6A DS 7* C/I * Internal connection. Do not connect for any reason MEDIA COMPATIBILITY Wetted materials: Stainless steel 316/316 L

Amplified stainless steel pressure sensors www.first-sensor.com www.sensortechnics.com PERFORMANCE CHARACTERISTICS (VS = 5.0 VDC , TA = 25°C, analog output signal is ratiometric to VS, digital output signal is not ratiometric to VS) scitsiretcarahC. niM. pyT. xaMs tinU )C°58...02-(ycaruccalatoT 4 5.1±S SF% yaledesnopseR 6,5 2s m noituloserD/A 6 31 tibnoituloserA/D 11 noitpmusnoctnerruC 7 5A m CITSIRETCARAHCECNAMROFREPEUGOLANA erusserpdeificeps.nimtatuptuO4 4.00 5.06 5.0 V)SSF(napselacslluF 3 00.4 tuptuoelacslluF4 4.40 5.46 5.4 CITSIRETCARAHCECNAMROFREPLATIGID erusserpdeificeps.nimtatuptuO3 8827 7230 763 stnuoc)SSF(napselacslluF 3 41262 tuptuoelacslluF7 90920 94923 8892 Specification notes: 1. Proof pressure is the maximum pressure which may be applied without causing durable shifts of the electrical parameters of the sensing element. 2. Burst pressure is the maximum pressure which may be applied without causing damage to the sensing element or leaks to the housing. 3. Full Scale Span (FSS) is the algebraic difference between the output signal for the highest and lowest specified pressure. 4. Total accuracy is the combined error from offset and span calibration, linearity, pressure hysteresis, and temperature effects. Linearity is the measured deviation based on a straight line. Hysteresis is the maximum output difference at any point within the operating pressure range for increasing and decreasing pressure. Calibration errors include the deviation of offset and full scale from nominal values. 5. Max. delay time between pressure change at the pressure die and signal change at the output. 6. The response time depends on the adjusted internal A/D resolution of the sensor. For 13 bit it is typ. 2 ms. Other A/D resolutions and reponse time are available on request. Please contact First Sensor for further information. 7. Sensors with lower current consumption are available on request. Please contact First Sensor for further information.

Amplified stainless steel pressure sensors www.first-sensor.com www.sensortechnics.com I²C BUS Introduction The sensor is capable to generate a digital output signal. The device runs a cyclic program, which will store a corrected pressure value with 13 bit resolution about every 500 µs within the output registers of the internal ASIC. In order to use the sensor for digital signal readout, it should be connected to a bidirectional I²C-bus. According to the I²C-bus specification, the bus is controlled by a master device, which generates the clock signal, controls the bus access and generates START and STOP conditions. The sensor is designed to work as a slave, hence it will only respond to requests from a master device. Digital I²C interface The sensor complies with the following protocol (Fig. 1): Bus not busy: During idle periods both data line (SDA) and clock line (SCL) remain HIGH. START condition (S): HIGH to LOW transition of SDA line while clock (SCL) is HIGH is interpreted as START con- dition. START conditions are always generated by the master. Each initial request for a pressure value has to begin with a START condition. STOP condition (P): LOW to HIGH transition of SDA line while clock (SCL) is HIGH determines STOP condition. STOP conditions are always generated by the master. More than one request for the current pressure value can be trans- mitted without generation of intermediate STOP condition. DATA valid (D): State of data line represents valid data when, after START condition, data line is stable for duration of HIGH period of clock signal. Data on line must be changed during LOW period of clock signal. There is one clock pulse per bit of data. Acknowledge (A): Data is transferred in pieces of 8 bits (1 byte) on serial bus, MSB first. After each byte receiving device – whether master or slave – is obliged to pull data line LOW as acknowledge for reception of data. Master must generate an extra clock pulse for this pur- pose. When acknowledge is missed, slave transmitter becomes inactive. It is on master either to send last com- mand again or to generate STOP condition in that case. Slave address: The I²C-bus master-slave concept requires a unique address for each device. The sensor has a preconfigured slave address (1111000xb). By factory programming it is possible to define a secondary slave address additional to the general one. According to I²C specification 127 different addresses are available. The sensor will then listen to both slave addresses. After generating a START condition the master sends the address byte containing a 7 bit address followed by a data direction bit (R/W). A "0" indicates a transmission from master to slave (WRITE), a "1" indicates a data request (READ). DATA operation: The sensor starts to send 2 data bytes containing the current pressure value as a 15 bit information placed in the output registers. SDA SCL START condition Data valid Data allowed to change STOP condition R/W Read out of first pressure value Read out of n pressure values (optional) S Data Byte 1 A Data Byte 2Slave Address A A PData Byte 1 generated by master generated by slave S = START condition A = Acknowledge P = STOP condition Data Byte 1 = High Byte (MSB first) Data Byte 2 = Low Byte (LSB last) Fig. 1:I²C bus protocol

Amplified stainless steel pressure sensors www.first-sensor.com www.sensortechnics.com I²C Interface Parameters retemaraPl obmyS. niM. pyT. xaMt inU levelhgihtupnI 090 01 sVfo%levelwoltupnI 00 1 levelwoltuptuO 01 rotsiserpu-lluP 005 Ω ADS@ecnaticapacdaoL C ADS 004 FpLCS/ADS@ecnaticapactupnI C NI_C2I 01 ycneuqerfkcolcLCS F LCS *0010 04z Hk noitidnocTRATSdnaPOTSneewtebemiteerfsuB t FUB 3.1 sµ ,noitidnocTRATS)detaeper(emitdloHe slupkcolctsrifot t ATS.DH 8.0 LCSfodoirepWOL t WOL 3.1 LCSfodoirepHGIH t HGIH 6.0 noitidnocTRATSdetaeperemitputeS t ATS.US 1 emitdlohataD t TAD.DH 0 emitputesataD t TAD.US 2.0 LCSdnaADShtobfoemitesiR tR 3.0 LCSdnaADShtobfoemitllaF tF 3.0 noitidnocPOTSrofemitputeS t OTS.US 6.0 tHD;STA tSU;DAT tHD;DAT tSU;STA tR tF SCL SDA tHIGH tLOW tSU;STO tBUF tHD;STA SDA SCL Note: First Sensor recommends communication speeds of at least 100 kHz (max. 400 kHz). Please contact First Sensor for further information. * recommended Fig. 2:Timing characteristics

Amplified stainless steel pressure sensors www.first-sensor.com www.sensortechnics.com mass: approx. 17 g dimensions in mm PHYSICAL DIMENSIONS SSI...1 (weld ring) Do not touch diaphragm! mass: approx. 50 g dimensions in mm SSI...5 (1/4 " NPT) 28.50 10.0 Ø 19.0 1/4 NPT 6.0 Ø 4.4 Ø 1.6 5.0 Vent tube Wires, 100 mm SW 20 A clearance fit 19H8 with 20 ° phase is recommended for mounting. Ø 1.6 5.5 Ø 19.0 +0,00 mm -0,05 mm Ø 16.4 5.0 3.0 Ø 15.0 Ø 18.4 2.4 O-ring groove recommended size 15.6 x 1.78 13.0 Vent tube Wires, 100 mm

Amplified stainless steel pressure sensors www.first-sensor.com www.sensortechnics.com PHYSICAL DIMENSIONS SSI...9 (G 1/8 " HEX) mass: approx. 35 g dimensions in mm Ø 1.6 28.5 10.0 Ø 19.0 Ø 4.4 G 1/8 6.0 5.0 O-ring groove recommended size 11x2 Wires, 100 mm SW 20 Vent tube OPTIONAL PRESSURE FITTING Other fittings are available on request. Please contact First Sensor. 11.5 1/4 NPT G 1/8 SW 14 SSI...N (1/4 " NPT fitting for G 1/8 " thread)

Amplified stainless steel pressure sensors www.first-sensor.com www.sensortechnics.com

ORDERING INFORMATION

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