1068.1012.1110001

SCHURTER GmbH D 79346 Endingen www.schurter.com Product manual Piezo Keypad CONTENTS CONTENTS ................................................................................................................................... 1 1 PRODUCT DESCRIPTION .................................................................................................... 2 2 TECHNICAL DATA AND DIMENSIONAL DRAWINGS ......................................................... 3 2.1 Technical Data ............................................................................................................... 3 2.2 Layout of 12 key keypad ................................................................................................ 5 2.3 Layout of 16 key keypad ................................................................................................ 6 2.4 Circuit diagram ............................................................................................................... 7 3 ORDER NUMBERS ............................................................................................................... 8 4 ACCESSORIES ..................................................................................................................... 8 4.1 Accessory Kit ................................................................................................................. 8 4.2 Dimensions Accessory Kit .............................................................................................. 9 5 PACKAGING ....................................................................................................................... 11 6 QUALIFICATION TEST ....................................................................................................... 11 6.1 Degree of Protection .................................................................................................... 11 6.2 EMC Protection ............................................................................................................ 11 7 APPROVALS ....................................................................................................................... 12 8 ROHS COMPLIANT ............................................................................................................. 12 Changes that contribute to technical improvement are subject to alternations. page Issue date: created by: amendment date: released by: amendment no.: datasheet no.: index 1 of 12 27.08.2008 M. Fischer 07.06.2010 H-P. Friedrich 500007769 0105.9539.200 d Print date: 10/12/2010 14:44:00 SCHURTER GmbH D 79346 Endingen www.schurter.com 1 PRODUCT DESCRIPTION - IP 69K protection class, IK 05 impact strength - operating temperature from -25C to +85C - long lifetime of more than 20 million actuations - with mounting accessories: keypad is sealed into the housing with IP 68 protection class, mounting into the housing from the front or the rear - as standard: keypads are available as a number block with 12 or 16 keys and with an aluminium front - point illumination may be integrated into the individual key fields as optical feedback or for user navigation - the operating panel can be designed in several colours in both the aluminium and stainless steel versions - the keypads can be adapted to customer requirements with respect to the outer geometry as well as to the number and arrangement of the keys - particularly suitable for use in outdoor applications due to their ability to resist extreme ambient conditions such as negative temperatures, ice and snow - completely sealed operating panel is easy to clean and resistant to common cleaning agents Operation principle: The piezo keypad is based on the principle of the piezoelectric effect. By pressing, a piezoceramic generates a voltage pulse. The power of the voltage pulse is amplified from the integrated electronic circuit to a bipolar switching output. During the voltage pulse the electronic is switching for the specified pulse duration. The The switching time of the electronic switching output depends on the actuation force and the operation speed. Connection diagram of a single switch NO (Normally Closed): In the unactuated condition, the piezo ceramic is in a high-impedance state and the switch has an output resistance greater than 10 MOhms. If the piezo-ceramic is actuated, the output resistance is reduced to a value smaller than 20 ohms. This corresponds largely to the functionality of a conventional mechanical switch. Changes that contribute to technical improvement are subject to alternations. page Issue date: created by: amendment date: released by: amendment no.: datasheet no.: index 2 of 12 27.08.2008 M. Fischer 07.06.2010 H-P. Friedrich 500007769 0105.9539.200 d Print date: 10/12/2010 14:44:00