HCLA Series Miniature amplified low pressure sensors FEATURES · 0 ... 2.5 to 0 ... 75 mbar, 0 ... ±2.5 to 0 ... ±75 mbar, differential or gage · Output: 0.25...4.25 V and I2C-bus (SPI and switching outputs optional) · Precision ASIC conditioning · Calibrated and temperature compensated · Matched pressure port volumes · Miniature SMT and SIL housings · RoHS compliant · Sensortechnics PRO services SPECIFICATIONS ELECTRICAL CONNECTION Maximum ratings Supply voltage VS 4.5 V ... 5.5 VDC (optional 2.7 ... 3.3 VDC) Output current Sink Source +Vs 1 1 mA 1 mA 3 5 Lead specifications Average preheating temperature gradient 2.5 K/s Soak time ca. 3 min Time above 217°C 50 s Time above 230°C 40 s Time above 250°C 15 s Peak temperature 260°C Cooling temperature gradient -3.5 K/s Temperature ranges Compensated Operating Storage -25 ... 85°C -25 ... 85°C -40 ... 125°C Humidity limits (non-condensing) 0 ... 95 %RH E / 11629 / A 8 Vout SCL SDA 2 GND Note: Pins 5 and 8 (connections for digital I2C-bus) are only available for SMD package styles (H, E and Q housings) 1/15 www.sensortechnics.com HCLA Series Miniature amplified low pressure sensors PRESSURE SENSOR CHARACTERISTICS (Vs = 5.0 V, TA = 25 °C, analog output signal is ratiometric to VS, digital output signal is not ratiometric to VS, pressure applied to high pressure port) Part no. Operating pressure Proof pressure5,7 Burst pressure6,7 HCLA02X5...B 0...±2.5 mbar 250 mbar 500 mbar HCLA12X5...B 0...±12.5 mbar 250 mbar 500 mbar HCLA0025...B 0...±25 mbar 500 mbar 750 mbar HCLA0050...B 0...±50 mbar 750 mbar 1200 mbar HCLA0075...B 0...±75 mbar 1200 mbar 2000 mbar HCLA02X5...U 0...2.5 mbar 250 mbar 500 mbar HCLA12X5...U 0...12.5 mbar 250 mbar 500 mbar HCLA0025...U 0...25 mbar 500 mbar 750 mbar HCLA0050...U 0...50 mbar 750 mbar 1200 mbar HCLA0075...U 0...75 mbar 1200 mbar 2000 mbar Output signal 2.25 ±2 V 0.25 - 4.25 V Specification notes: 1. Shift is relative to 25°C. 2. Shift is within the first hour of excitation applied to the device. 3. Non-linearity refers to the Best Straight Line fit, measured for lowest specified pressure, highest specified pressure and 1/2 full scale pressure. 4. Full Scale Span (FSS) is the algebraic difference between the output signal for the highest and lowest highest pressure. 5. Proof pressure is the maximum pressure which may be applied without causing durable shifts of the electrical parameters of the sensing element. 6. Burst pressure is the maximum pressure which may be applied without causing damage to the sensing element or leaks to the housing. 7. The common mode pressure for the HCLA series is 2 bar. Common mode pressure is the maximum pressure that can be applied to both ports of a differential pressure sensor simultaneously without damaging the sensor housing. 8. Max. delay time between pressure change at the pressure die and signal change at the output. 9. The response time depends on the adjusted internal A/D resolution of the sensor. For 12 bit it is typ. 0.5 ms. Other A/D resolutions and reponse times are available on request. Please contact Sensortechnics for further information. 10. Sensors with lower current consumption are available on request. Please contact Sensortechnics for further information. E / 11629 / A 2/15 www.sensortechnics.com HCLA Series Miniature amplified low pressure sensors PERFORMANCE CHARACTERISTICS (Vs = 5.0 V, TA = 25 °C, analog output signal is ratiometric to VS, digital output signal is not ratiometric to VS, pressure applied to high pressure port) HCLA02X5... Characteristics Min. 3 Non-linearity and hysteresis (BSL) Thermal effects (-25 to 85°C)1 Typ. Max. ±0.05 ±0.25 Offset ±1.5 Span Unit %FSS ±2.0 Response delay8, 9 0.5 9 A/D resolution ms 12 D/A resolution 11 Current consumption (no load)10 5 bi t mA D IG IT A L P E R F O R M A N C E C H A R A C T E R IS T IC S Offset warm-up shift2 ±0042 Offset position sensitivity (±1 g) ±0063 Offset long term drift (one year) ±0042 Count Hex A N A L O G U E P E R F O R M A N C E C H A R A C T E R IS T IC S 2 Offset warm-up shift ±10 Offset position sensitivity (±1 g) ±15 Offset long term drift (one year) ±10 mV HCLA02X5...B Characteristics Min. Operating pressure range Typ. -2.5 Max. Unit +2.5 mbar D IG IT A L P E R F O R M A N C E C H A R A C T E R IS T IC S Zero pressure offset 370A 3999 3C 28 Full scale span (FSS)4 63D 6 6666 68F 5 Output at +2.5 mbar 6C C C at -2.5 mbar 0666 Count Hex A N A L O G U E P E R F O R M A N C E C H A R A C T E R IS T IC S Zero pressure offset 2.15 2.25 2.35 Full scale span (FSS)4 3.90 4.00 4.10 Output at +2.5 mbar 4.25 at -2.5 mbar 0.25 V HCLA02X5...U Characteristics Operating pressure range Min. Typ. 0 Max. Unit +2.5 mbar D IG IT A L P E R F O R M A N C E C H A R A C T E R IS T IC S Zero pressure offset 03D 7 0666 08F 6 Full scale span (FSS)4 63D 6 6666 68F 5 Count Hex A N A L O G U E P E R F O R M A N C E C H A R A C T E R IS T IC S Zero pressure offset 0.15 0.25 0.35 Full scale span (FSS)4 3.90 4.00 4.10 E / 11629 / A V 3/15 www.sensortechnics.com HCLA Series Miniature amplified low pressure sensors PERFORMANCE CHARACTERISTICS (cont.) (Vs = 5.0 V, TA = 25 °C, analog output signal is ratiometric to VS, digital output signal is not ratiometric to VS, pressure applied to high pressure port) HCLA12X5... Characteristics Min. 3 Non-linearity and hysteresis (BSL) Thermal effects (-25 to 85°C)1 Typ. Max. ±0.05 ±0.25 Offset ±1.0 Span Unit %FSS ±1.0 Response delay8, 9 0.5 9 ms 12 A/D resolution D/A resolution 11 Current consumption (no load)10 5 bi t mA D IG IT A L P E R F O R M A N C E C H A R A C T E R IS T IC S Offset warm-up shift2 ±0021 Offset position sensitivity (±1 g) ±0021 Offset long term drift (one year) ±0021 Count Hex A N A L O G U E P E R F O R M A N C E C H A R A C T E R IS T IC S 2 Offset warm-up shift ±5 Offset position sensitivity (±1 g) ±5 Offset long term drift (one year) ±5 mV HCLA12X5...B Characteristics Min. Operating pressure range Typ. -12.5 Max. Unit +12.5 mbar D IG IT A L P E R F O R M A N C E C H A R A C T E R IS T IC S Zero pressure offset 370A 3999 3C 28 Full scale span (FSS)4 63D 6 6666 68F 5 Output at +12.5 mbar 6C C C at -12.5 mbar 0666 Count Hex A N A L O G U E P E R F O R M A N C E C H A R A C T E R IS T IC S Zero pressure offset 2.15 2.25 2.35 Full scale span (FSS)4 3.90 4.00 4.10 Output at +12.5 mbar 4.25 at -12.5 mbar 0.25 V HCLA12X5...U Characteristics Operating pressure range Min. Typ. 0 Max. Unit +12.5 mbar D IG IT A L P E R F O R M A N C E C H A R A C T E R IS T IC S Zero pressure offset 4 Full scale span (FSS) 03D 7 0666 08F 6 63D 6 6666 68F 5 Count Hex A N A L O G U E P E R F O R M A N C E C H A R A C T E R IS T IC S Zero pressure offset 4 Full scale span (FSS) E / 11629 / A 0.15 0.25 0.35 3.90 4.00 4.10 V 4/15 www.sensortechnics.com HCLA Series Miniature amplified low pressure sensors PERFORMANCE CHARACTERISTICS (cont.) (Vs = 5.0 V, TA = 25 °C, analog output signal is ratiometric to VS, digital output signal is not ratiometric to VS, pressure applied to high pressure port) HCLA0025... Characteristics Min. 3 Non-linearity and hysteresis (BSL) Thermal effects (-25 to 85°C)1 Typ. Max. ±0.05 ±0.25 Offset ±0.5 Span Unit %FSS ±1.0 Response delay8, 9 0.5 9 ms 12 A/D resolution D/A resolution 11 Current consumption (no load)10 5 bi t mA D IG IT A L P E R F O R M A N C E C H A R A C T E R IS T IC S Offset warm-up shift2 ±0021 Offset position sensitivity (±1 g) ±0021 Offset long term drift (one year) ±0021 Count Hex A N A L O G U E P E R F O R M A N C E C H A R A C T E R IS T IC S 2 Offset warm-up shift ±5 Offset position sensitivity (±1 g) ±5 Offset long term drift (one year) ±5 mV HCLA0025...B Characteristics Min. Operating pressure range Typ. -25 Max. Unit +25 mbar D IG IT A L P E R F O R M A N C E C H A R A C T E R IS T IC S Zero pressure offset 370A 3999 3C 28 Full scale span (FSS)4 63D 6 6666 68F 5 Output at +25 mbar 6C C C at -25 mbar 0666 Count Hex A N A L O G U E P E R F O R M A N C E C H A R A C T E R IS T IC S Zero pressure offset 2.15 4 Full scale span (FSS) 3.90 Output 2.25 2.35 4.00 4.10 at +25 mbar 4.25 at -25 mbar 0.25 V HCLA0025...U Characteristics Operating pressure range Min. Typ. 0 Max. Unit +25 mbar D IG IT A L P E R F O R M A N C E C H A R A C T E R IS T IC S Zero pressure offset 4 Full scale span (FSS) 03D 7 0666 08F 6 63D 6 6666 68F 5 Count Hex A N A L O G U E P E R F O R M A N C E C H A R A C T E R IS T IC S Zero pressure offset 0.15 0.25 0.35 Full scale span (FSS)4 3.90 4.00 4.10 E / 11629 / A V 5/15 www.sensortechnics.com HCLA Series Miniature amplified low pressure sensors PERFORMANCE CHARACTERISTICS (cont.) (Vs = 5.0 V, TA = 25 °C, analog output signal is ratiometric to VS, digital output signal is not ratiometric to VS, pressure applied to high pressure port) HCLA0050... Characteristics Min. 3 Non-linearity and hysteresis (BSL) 1 Thermal effects (-25 to 85°C) Typ. Max. ±0.05 ±0.25 Offset ±0.5 Span ±1.0 Response delay8, 9 0.5 A/D resolution9 12 D/A resolution %FSS ms 11 Current consumption (no load)10 Unit 5 bi t mA D IG IT A L P E R F O R M A N C E C H A R A C T E R IS T IC S Offset warm-up shift2 ±0021 Offset position sensitivity (±1 g) ±0021 Offset long term drift (one year) ±0021 Count Hex A N A L O G U E P E R F O R M A N C E C H A R A C T E R IS T IC S Offset warm-up shift2 ±5 Offset position sensitivity (±1 g) ±5 Offset long term drift (one year) ±5 mV HCLA0050...B Characteristics Min. Operating pressure range Typ. -50 Max. Unit +50 mbar D IG IT A L P E R F O R M A N C E C H A R A C T E R IS T IC S Zero pressure offset 370A 3999 3C 28 Full scale span (FSS)4 63D 6 6666 68F 5 Output at +50 mbar 6C C C at -50 mbar 0666 Count Hex A N A L O G U E P E R F O R M A N C E C H A R A C T E R IS T IC S Zero pressure offset 2.15 4 Full scale span (FSS) 3.90 Output 2.25 2.35 4.00 4.10 at +50 mbar 4.25 at -50 mbar 0.25 V HCLA0050...U Characteristics Operating pressure range Min. Typ. 0 Max. Unit +50 mbar D IG IT A L P E R F O R M A N C E C H A R A C T E R IS T IC S Zero pressure offset 4 Full scale span (FSS) 03D 7 0666 08F 6 63D 6 6666 68F 5 Count Hex A N A L O G U E P E R F O R M A N C E C H A R A C T E R IS T IC S Zero pressure offset 4 Full scale span (FSS) E / 11629 / A 0.15 0.25 0.35 3.90 4.00 4.10 V 6/15 www.sensortechnics.com HCLA Series Miniature amplified low pressure sensors PERFORMANCE CHARACTERISTICS (cont.) (Vs = 5.0 V, TA = 25 °C, analog output signal is ratiometric to VS, digital output signal is not ratiometric to VS, pressure applied to high pressure port) HCLA0075... Characteristics Min. 3 Non-linearity and hysteresis (BSL) Thermal effects (-25 to 85°C)1 Typ. Max. ±0.05 ±0.25 Offset ±0.5 Span Unit %FSS ±1.0 Response delay8, 9 0.5 9 A/D resolution ms 12 D/A resolution 11 Current consumption (no load)10 5 bi t mA D IG IT A L P E R F O R M A N C E C H A R A C T E R IS T IC S Offset warm-up shift2 ±0021 Offset position sensitivity (±1 g) ±0021 Offset long term drift (one year) ±0021 Count Hex A N A L O G U E P E R F O R M A N C E C H A R A C T E R IS T IC S 2 Offset warm-up shift ±5 Offset position sensitivity (±1 g) ±5 Offset long term drift (one year) ±5 mV HCLA0075...B Characteristics Min. Operating pressure range Typ. -75 Max. Unit +75 mbar D IG IT A L P E R F O R M A N C E C H A R A C T E R IS T IC S Zero pressure offset 370A 3999 3C 28 Full scale span (FSS)4 63D 6 6666 68F 5 Output at +75 mbar 6C C C at -75 mbar 0666 Count Hex A N A L O G U E P E R F O R M A N C E C H A R A C T E R IS T IC S Zero pressure offset 2.15 4 Full scale span (FSS) 3.90 Output 2.25 2.35 4.00 4.10 at +75 mbar 4.25 at -75 mbar 0.25 V HCLA0075...U Characteristics Operating pressure range Min. Typ. 0 Max. Unit +75 mbar D IG IT A L P E R F O R M A N C E C H A R A C T E R IS T IC S Zero pressure offset 4 Full scale span (FSS) 03D 7 0666 08F 6 63D 6 6666 68F 5 Count Hex A N A L O G U E P E R F O R M A N C E C H A R A C T E R IS T IC S Zero pressure offset 4 Full scale span (FSS) E / 11629 / A 0.15 0.25 0.35 3.90 4.00 4.10 V 7/15 www.sensortechnics.com HCLA Series Miniature amplified low pressure sensors I²C BUS Introduction 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. The HCLA is capable to generate a digital output signal. The device runs a cyclic program, which will store a corrected pressure value with 12 bit resolution about every 250 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. 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 purpose. When acknowledge is missed, slave transmitter becomes inactive. It is on master either to send last command again or to generate STOP condition in that case. 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 HCLA is designed to work as a slave, hence it will only respond to requests from a master device. Digital I²C interface Slave address: The I²C-bus master-slave concept requires a unique address for each device. The HCLA 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). The HCLA 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 condition. 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 transmitted without generation of intermediate STOP condition. 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. SCL SDA START condition Data valid 1 S Slave Address R/W A Data allowed to change Data Byte 1 A STOP condition Data Byte 2 Read out of first pressure value generated by master generated by slave A Data Byte 1 P Read out of n pressure values (optional) S = START condition Data Byte 1 = High Byte (MSB first) A = Acknowledge Data Byte 2 = Low Byte (LSB last) P = STOP condition Fig. 1: I²C bus protocol E / 11629 / A 8/15 www.sensortechnics.com HCLA Series Miniature amplified low pressure sensors I²C Interface Parameters Parameter Symbol Input high level Input low level Output low level Pull-up resistor Load capacitance @ SDA Input capacitance @ SDA/SCL SCL clock frequency Bus free time between STOP and START condition Hold time (repeated) START condition, to first clock pulse LOW period of SCL HIGH period of SCL Setup time repeated START condition Data hold time Data setup time Rise time of both SDA and SCL Fall time of both SDA and SCL Setup time for STOP condition Min. Typ. 90 0 Max. Unit 100 10 10 % of V s Ω 500 C SD A CI2C_IN FSC L tBUF tHD.STA tLOW tHIGH tSU.STA tHD.DAT tSU.DAT tR tF tSU.STO 400 10 400 100* 1.3 0.8 1.3 0.6 1 0 0.2 pF kHz µs 0.3 0.3 0.6 * recommended Note: Sensortechnics recommends communication speeds of at least 100 kHz (max. 400 kHz). Please contact your nearest Sensortechnics sales office for further information. tSU;DAT tHD;DAT tSU;STA tHD;STA tR tSU;STO tBUF tHD;STA tF SCL SDA tHIGH tLOW SCL SDA Fig. 2: Timing characteristics E / 11629 / A 9/15 www.sensortechnics.com HCLA Series Miniature amplified low pressure sensors PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTIONS HCLA...D... 6.70 Package: dual port, same side 3 12.70 1.90 3 10.70 16 10.30 6.50 9.50 2 Bottom view 0.25 4 3 2 1 1.45 4.50 0.51 2.54 Pin Connection 1 +Vs 2 GND 3 Vout 4 I / C* * Internal connection. Do not connect for any reason 10.70 1.90 HIGH PRESSURE PORT third angle projection LOW PRESSURE PORT 3 dimensions in mm 4.20 HCLA...E... Package: SMD dual port, same side 12.70 4.50 Bottom view 6.50 1.28 16 3 5 6 7 8 4 3 2 1 4.06 10.70 LOW PRESSURE PORT Connection 1 +Vs 2 GND 3 Vout 4 I/C * 5 SC L 6 4.20 3 7 6.70 8 3 1.90 2 HIGH PRESSURE PORT Pin I/C * SD A * Internal connection. Do not connect for any reason 0.46 2.54 third angle projection dimensions in mm E / 11629 / A 10/15 www.sensortechnics.com HCLA Series Miniature amplified low pressure sensors PHYSICAL DIMENSIONS AND ELECTRICAL CONNECTIONS (cont.) HCLA...G... Package: single port 3.70 Top view 3 12.70 2 9.50 16 10.30 10.70 6.4 4.3 1.90 2.5 +Vs 2 GND 3 Vout 4 I / C* 1.90 1.45 Connection 1 * Internal connection. Do not connect for any reason 1 2 34 0.51 2.54 0.25 Pin third angle projection 10.70 HIGH PRESSURE PORT 3 dimensions in mm 4.20 HCLA...H... Package: SMD single port Top view 12.70 2.5 9.50 16 1.28 4.06 2 6.4 4.3 8 7 6 5 Pin Connection 1 +Vs 2 GND 3 Vout 4 I/C * 5 SC L 6 1 2 3 4 7 10.70 8 2.54 HIGH PRESSURE PORT SD A * Internal connection. Do not connect for any reason 3.70 3 1.90 0.46 I/C * third angle projection 3 4.20 E / 11629 / A dimensions in mm 11/15 www.sensortechnics.com HCLA Series Miniature amplified low pressure sensors HOUSING OPTIONS Different housing options are available on request. Please contact Sensortechnics. Dual port, opposite side (HCLA...P...) 6.70 3 12.70 10.70 Pin 10.30 9.50 2 16 Bottom view 1.90 4 3 2 1 1 +Vs 2 GND 3 Vout 4 I / C* * Internal connection. Do not connect for any reason 0.25 0.51 Connection 1.45 2.54 10.70 1.90 HIGH PRESSURE PORT third angle projection LOW PRESSURE PORT dimensions in mm 3 4.20 SMD dual port, opposite side (HCLA...Q...) 12.70 Bottom view Pin 1.28 9.50 16 2 5 6 7 8 4 3 2 1 4.06 10.70 3 LOW PRESSURE PORT 3 Vout 4 I/C * 5 SC L 6 I/C * SD A * Internal connection. Do not connect for any reason 6.70 3 1.90 0.46 E / 11629 / A +Vs GND 8 HIGH PRESSURE PORT 2.54 1 2 7 4.20 Connection third angle projection dimensions in mm 12/15 www.sensortechnics.com HCLA Series Miniature amplified low pressure sensors HOUSING OPTIONS (cont.) Different housing options are available on request. Please contact Sensortechnics. Dual port, top side (HCL...T...) 12.70 Bottom view 6.70 7.85 4.85 3 2 10.30 16 10.70 4.20 3 1.90 4 3 2 1 0.25 0.51 1.45 Pin Connection 1 +Vs 2 GND 3 Vout 4 I / C* * Internal connection. Do not connect for any reason 2.54 HIGH PRESSURE PORT 1.90 10.70 third angle projection LOW PRESSURE PORT E / 11629 / A dimensions in mm 13/15 www.sensortechnics.com HCLA Series Miniature amplified low pressure sensors HOUSING OPTIONS (cont.) Different housing options are available on request. Please contact Sensortechnics. Barbed pressure ports Ø 2.20 ±0.1 (Available for all housing styles. Sample package shown: SMD dual port, same side) 12.70 4.67 00 7. 5 6 7 8 16 Ø 3.0 ±0.1 Ø 2.20 ±0.1 Bottom view 10.70 4.0 5.21 6.87 3,12 HIGH PRESSURE PORT 2.0 4 3 2 1 2.50 ±0.2 5 ±0.2 third angle projection LOW PRESSURE PORT 2.54 0.46 dimensions in mm Dual Inline Packages (DIP) (Available for all housing styles. Sample package shown: DIP dual port, same side) 12.70 Bottom view 4.50 6.50 16.0 16.25 3.0 5 6 7 8 4 3 2 1 9.0 10.70 6.70 2.0 third angle projection LOW PRESSURE PORT 2.54 E / 11629 / A 0.46 5.60 1.90 3.0 3.0 4.20 HIGH PRESSURE PORT dimensions in mm 14/15 www.sensortechnics.com HCLA Series Miniature amplified low pressure sensors ORDERING INFORMATION Series Options H C LA Pressure range Housing Calibration 02X 5 2.5 mbar D* Diff SIL same side B Bidirectional 12X 5 12.5 mbar E Diff SMD same side U Unidirectional 0025 25 mbar G* Gage SIL 0050 50 mbar H Gage SMD 0075 75 mbar (P)* Diff SIL opposite side (Q) Diff SMD opposite side (T)* Diff SIL same top side Housings P, Q, T available on request. Please contact Sensortechnics. * not available with digital output Example: H C LA 02X 5 E B Custom specific pressure ranges and mechanical or electronic sensor modifications are widely available: · up to 15 bit resolution · 3 V power supply · SPI, switching and custom specific outputs · barbed pressure ports · Dual Inline Packages (DIP) ... etc. Please contact your nearest Sensortechnics sales office for further information. Sensortechnics PRO services: · Extended guarantee period of 2 years · Custom product modifications and adaptations even for small quantities · Advanced logistics models for supply inventory and short delivery times · Technical support through application engineers on the phone or at your site · Traceability of each sensor through serial numbers on request · No product specification changes without customer notification · No product obsolescence without very early prior notice · Fastest possible technical response for design and QA engineers · Long term product availability for your spares and service needs ... plus other services on request Sensortechnics reserve the right to make changes to any products herein. Sensortechnics do not assume any liability arising out of the application or use of any product or circuit described herein, neither does it convey any license under its patent rights nor the rights of others. E / 11629 / A 15/15 www.sensortechnics.com