SPAN-B-B11R-R18M-PN-L1+2.5S Festo Pressure sensor

Technical Overview

The Festo SPAN-B-B11R-R18M-PN-L1+2.5S is a high-precision piezoresistive pressure sensor designed for relative pressure measurement of compressed air and inert gases. It features an illuminated LCD display for real-time monitoring, switchable PNP/NPN outputs, and a flexible N/C or N/O switching element function. With a measuring range from -1 to 10 bar, it offers versatile automation integration via its L1J connection pattern and R1/8 male thread pneumatic connection.

Key Features

Piezoresistive pressure sensor measurement method
Illuminated LCD display
Switchable PNP/NPN output
Window and threshold value comparator functions
Teach-in setting options via display and keys
PIN code protection against tampering
RoHS-compliant materials
Short circuit current rating
Reverse polarity protection for all electrical connections

Technical Specification Matrix

Parameter	Value
Symbol	00997331
Approval	RCM trademark c UL us listed (OL)
CE mark (see declaration of conformity)	To EU EMC Directive In accordance with EU RoHS Directive
UKCA marking (see declaration of conformity)	To UK RoHS instructions
Note on materials	RoHS-compliant
Measured variable	Relative pressure
Measurement method	Piezoresistive pressure sensor
Start value for pressure measuring range-0.1 MPa	-0.1 MPa
Start value for pressure measuring range-1 bar	-1 bar
Start value for pressure measuring range-14.5 psi	-14.5 psi
End value for pressure measuring range 1 MPa	1 MPa
End value for pressure measuring range 10 bar	10 bar
End value for pressure measuring range 145 psi	145 psi
Max. overload pressure	15 bar
Overload pressure 1.5 MPa	1.5 MPa
Overload pressure 15 bar	15 bar
Overload pressure 217.5 psi	217.5 psi
Operating medium	Compressed air to ISO 8573-1:2010 [7:4:4] Inert gases
Note on operating and pilot medium	Lubricated operation possible
Media temperature	0 °C ... 50 °C
Ambient temperature	0 °C ... 50 °C
Accuracy in ± % FS	1.5 %FS
Repetition accuracy in ± %FS	0.3 %FS
Temperature coefficient in ± %FS/K	0.1 %FS/K
Switching output	PNP/NPN, switchable
Switching function	Window comparator Threshold value comparator
Switching element function	N/C or N/O contact, switchable
Max. output current	80 mA
Short circuit current rating	yes
Operational voltage range DC	10.8 V ... 30 V
Reverse polarity protection	For all electrical connections
Electrical connection 1, connection type	Plugs
Electrical connection 1, connector system	Connection pattern L1J
Electrical connection 1, number of connections/cores	4
Electrical connection 1, connection pattern	00995428
Type of mounting	Via thread Via wall/surface bracket
Mounting position	optional
Pneumatic connection	Male thread R1/8
Product weight	31 g
Material housing	PA-reinforced
Material in contact with the medium	FPM Nickel-plated brass PA-reinforced
Display type	Illuminated LCD
Displayable units	MPa bar inHg kPa mmHg psi
Setting options	Teach-in Via display and keys
Protection against tampering	PIN code
Setting range threshold value	0 % ... 100 %
Setting range hysteresis	0 % ... 90 %
Degree of protection	IP40
Corrosion resistance class CRC	2 - Moderate corrosion stress
LABS (PWIS) conformity	VDMA24364-B1/B2-L
Cleanroom suitability, measured according to ISO 14644-1	Class 4 according to ISO 14644-1

Industrial Applications

1. Semiconductor Wafer Pick-and-Place Vacuum/Pressure Monitoring

Utilizing the sensor within an ISO Class 4 cleanroom environment to monitor both the vacuum grip (-1 bar) and positive release pressures (up to 10 bar) on pneumatic end-effectors used for handling delicate semiconductor wafers. The piezoresistive sensor provides accurate real-time feedback to the PLC.

Problem Solved

Eliminates the risk of wafer drops or damage due to inconsistent vacuum levels while ensuring strict compliance with cleanroom particulate standards.

Class 4 according to ISO 14644-1Start value -1 barEnd value 10 barPiezoresistive pressure sensor

2. Tamper-Proof Pneumatic Clamping Force Control in Automated Assembly

Deployed on automated pneumatic clamping fixtures operating at typical factory pressures of 6 to 8 bar. The sensor uses its window comparator function to ensure the clamping pressure stays within strict tolerances. The integrated PIN code protection ensures floor operators cannot manually override the threshold settings via the display.

Problem Solved

Prevents unauthorized parameter changes that cause either inadequate clamping (leading to part misalignment) or excessive pressure (causing part deformation), thereby reducing scrap rates.

PIN codeWindow comparatorIlluminated LCDOperating medium Compressed air

3. Inert Gas Pressure Monitoring for Industrial Packaging

Integrated into automated machinery to monitor nitrogen or argon shielding gas line pressures via the male thread R1/8 connection. The sensor triggers an immediate alert via its 80mA switching output if the inert gas pressure drops below the critical threshold, leveraging its high 0.3% FS repetition accuracy.

Problem Solved

Detects supply drops in inert gas blanketing systems instantly, preventing oxidation defects in products without needing frequent manual recalibration.

Inert gases0.3 %FS repetition accuracyMale thread R1/8Max. output current 80 mAThreshold value comparator