Showing posts with label sensing. Show all posts
Showing posts with label sensing. Show all posts

Saturday, November 5, 2011

Gavazzi Photo CGPS ~ Sords Electric


Photo Electrics at Sords Electric

Carlo Gavazzi offers a large range of photoelectric sensors which are used extensively on packaging machinery, automatic door systems, factory automation, and in car washes. Our sensors are available in diffuse reflective, background suppression, reto-reflective, polarized, through beam, clear object detection, and colour recognition.

Carlo Gavazzi is a leader in photoelectric sensors for automatic doors and have one of the broadest range of UL325 sensors on the market.

We also offer a range of fibre-optic type sensors for applications where a conventional sensor cannot be used (space restrictions, temperature, atmosphere).

Also included in our range of photoelectric sensors are our VP series optical types. These are ideal for use in level applications. They are available in various housing materials which allow their use in various industrial cleaning solutions.

CGPS-UT PHOTO ELECTRIC - Thru Beam ( Through Beam )

Ultra Short body Length
6m & 20m sensing ranges
Multiple connection options
dual Output - NO and NC
10-30 vdc supply voltage
both cable and plug connection options
IP66
UL and cUL approved and CE marked

Part Numbers:

CGPS-UT-6MN 6 meter sensing/NPN
CGPS-UT-6MP PNP 6 meter sensing
CGPS-UT-20MN NPN/20 meter sensing
CGPS-UT-20MP 20 meter sensing/PNP

CGPS-UT-6MN-M8 6 meter sensing/NPN
CGPS-UT-6MP-M8 PNP/6 meter sensing
CGPS-UT-20MN-M8 NPN/20 meter sensing
CGPS-UT-20MP-M8 20 meter sensing/PNP

CGPS-UT-6MN-PG 6 meter sensing/NPN
CGPS-UT-6MP-PG 6 meter sensing/PNP
CGPS-UT-20MN-PG NPN/20 meter sensing
CGPS-UT-20MP-PG PNP/20 meter sensing

Buy Photos here!

Carlo Gavazzi Switches
800-929-2845

Saturday, May 23, 2009

Temperature Switches ~ Mechanical ~ bi-metal

Sords Electric sells Temperature Swtiches.

Temperature Switches are designed to work in two different ways, bi-metal switches and thermal expansion.
both of these methods require no electrical power for the switch to sense temperature and mechanically actuate the switch mechanism. Of course power has to b present to actually be switched.

A bi-metal switch uses two dis-similar metals. Metallic objects expand and contract when heated and cooled, by attaching or fusing or combining two different metals together, they will expand or contract, or bend or otherwise cause a movement that can be used to make a switch contact. By restricting the movement with a spring or tension, the switch can be "set' for desired temperatures. The switch can be calibrated at the factory or by the user.

A thermal expansion switch uses a liquid/gas filler that will expand and move a plunger that will actuate the switch.
A liquid is stored in the "bulb" of the switch and when heated will boil and turn to gas and expand. The expansion will move up the capillary and create pressure to actuate the switch mechanism. As with bi-metal switches these switches ca be calibrated by the users to actuate at different set points. Also, thermal expansion switches can have two or more set points by use of two or more switches.

A few examples of temperature switches that use this technology are the thermostats in cars to allow coolant to flow, and the old style round house thermostats that used bi-metal and mercury to make the switching. Most over temperature safety switches found in appliances are bi-metal switches as they can be small and inexpensive. This Style of switch is factory set to a certain temperature. Some of these switches can have a manual reset mechanism and some will reset when they cool to a lower temperature.