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Double sheet sensor UDB-18GS-2E0-0,2M-V15

  • Ultrasonic system for reliable detection of no, one, or two overlapping sheet materials
  • Insensitive to printing, colors, and shining surfaces
  • Perpendicular or inclined sensor mounting relative to the sheet plane possible
  • Simplified commissioning
  • Integrated alignment aid
  • No teach-in required
  • Short version

Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of  UDB-18GS-2E0-0,2M-V15

General specifications
Sensing range20 ... 60 mm , optimal distance: 45 mm
Transducer frequencyapprox. 255 kHz
Non-volatile memoryEEPROM
Write cycles300000
Indicators/operating means
LED greenindication: single sheet detected
LED yellowindication: no sheet detected (Air)
LED redindication: double sheet detected
flashing: device error
Electrical specifications
Operating voltage18 ... 30 V DC , ripple 10 %SS
No-load supply current≤ 40 mA
Power consumption≤ 550 mW
Time delay before availability≤ 300 ms
Input typeFunction input
0-level: -UB ... -UB + 1V
1-level: +UB - 1 V ... +UB
Pulse length≥ 100 ms
Impedance≥ 60 kΩ
DesignationOUT 1, 2
Output functionOUT 1: single sheet detected
OUT 2: double sheet detected
Output typeswitching output: NPN , NO contact
Rated operating current100 mA per output
Voltage drop≤ 3 V
Switch-on delay15 ms
Switch-off delay15 ms
Fusingreverse polarity protected , overload and short-circuit resistant
Compliance with standards and directives
Standard conformity
StandardsEN IEC 60947-5-2:2020
IEC 60947-5-2:2019
Approvals and certificates
UL approvalcULus Listed, General Purpose, Class 2 Power Source
CCC approvalCCC approval / marking not required for products rated ≤36 V
Ambient conditions
Ambient temperature0 ... 60 °C (32 ... 140 °F)
Storage temperature-25 ... 70 °C (-13 ... 158 °F)
Mechanical specifications
Connection typefixed cable with plug
Housing length
Ultrasonic transmitter21 mm
Ultrasonic receiver52 mm
Housing diameter
Ultrasonic transmitter18 mm
Ultrasonic receiver18 mm
Degree of protectionIP54
HousingStainless steel 1.4305/AISI 303, polyamide plastic parts
Transducerepoxy resin/hollow glass sphere mixture; polyurethane foam
ThreadingM12 x 1
Number of pins5
Cable diameter4.3 mm
Bending radius5 x diameter , fixed
Lengthapprox. 200 mm
Mass75 g
Tightening torque, fastening screwsmax. 20 Nm


ECLASS 13.027272801
ECLASS 12.027272801
ECLASS 11.027272801
ECLASS 10.0.127272801
ECLASS 9.027272801
ECLASS 8.027272801
ECLASS 5.127272801
ETIM 9.0EC001847
ETIM 8.0EC001847
ETIM 7.0EC001847
ETIM 6.0EC001847
ETIM 5.0EC001847
UNSPSC 12.141111960

Details: UDB-18GS-2E0-0,2M-V15


The ultrasonic double-sheet detector is used wherever automatic differentiation between single and double sheets is necessary to protect machines or prevent rejects. The double sheet detection is based on the ultrasonic thru-beam principle.

The following situations can be detected:

  • No sheet, i. e. air

  • Single sheet

  • Double sheet or multiple sheets (a statement on the number of sheets is not possible here)

The signals are evaluated by a microprocessor system. As a result of the evaluation, corresponding switching outputs are set.

Informative Literature: UDB-18GS-2E0-0,2M-V15

Language Selection:
LiteratureLanguageFile TypeFile Size
Application Report - Reliable Detecting Foil Tears in Battery Cell ManufacturingENGPDF163 KB

Product Documentation: UDB-18GS-2E0-0,2M-V15

Language Selection:
Brief InstructionsLanguageFile TypeFile Size
Commissioning instruction for series UDB-18GS-* / Inbetriebnahmeanleitung für Serie UDB-18GS-*ALLPDF319 KB

Design / Simulation: UDB-18GS-2E0-0,2M-V15

Language Selection:
CADLanguageFile TypeFile Size
CAE EPLAN Data Portal / CAE EPLAN Data PortalALLLINK---

Approvals: UDB-18GS-2E0-0,2M-V15

Language Selection:
Declaration of ConformityCertificate No.LanguageFile TypeFile Size
EU Declaration of Conformity (P+F) / EU-Konformitäterklärung (P+F)DOC-5827ALLPDF34 KB
UK Declaration of Conformity (P+F) / UK-Konformitäterklärung (P+F)DOC-5828ALLPDF32 KB

Associated Products: UDB-18GS-2E0-0,2M-V15

Female cordset single-ended M12 straight A-coded, 5-pin, PUR cable black, UL approved, drag chain suitable, torsion resistantfa
Mounting bracket for double sheet monitorfa
alignment aid for double sheet sensorfa
Cordset M8 socket straight to M8 plug straight A-coded, 4-pin, PUR cable 3-core black, shieldedfa
Cordset M8 socket straight to M8 plug straight A-coded, 4-pin, PUR cable 3-core black, shieldedfa

Pepperl+Fuchs offers you various downloadable documents containing knowledge on ultrasonic sensors.