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All purchases are eligible for automatic volume discounts at checkout except for Verbatim, Robertshaw, Toshiba, ATC Counters, MDI, ASCO, Chromalox, Convectronics products and all Mats as follows: 5% discounts for orders over $500; 10% discounts for orders over $1000; 15% discounts for orders over $3000. Orders outside of North America may be subject to a processing fee.
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GFCI / GFCIs
Timers and Time Delay Relays (TDRs)
ATC Counters
Carlo Gavazzi Solid State Relays
MDI Mercury Switched Contactors / Relays
Vibration Switches, Laser Switches and Proximity Switches
Solenoid Valves
Electric Heaters
Motors & Drives
Voltage Monitors
Weintek HMIs
MDI Level Control Floats
Temperature Controls
   Fenwal Thermoswitches
   Fenwal Detect-A-Fire Fire Protection (Vertical)
   Fenwal Detect-A-Fire Fire Protection (Horizontal)
   Temperature Controllers
     Digital Controllers 120V
     Digital Controllers 24V
     Limit Controllers
Carlo Gavazzi Power Supplies
MATS
Meltric Quick Disconnect Plugs
Jessup Glo Brite ECO Exit Signs
Verbatim LED Lighting
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Temperature Controllers

A temperature controller is a device used to hold a desired temperature at a specified value.

In a typical application, sensors measure the actual temperature. This sensed temperature is constantly compared to a user set point. When the actual temperature deviates from the set point, the controller generates an output signal to activate other temperature regulating devices such as heating elements or refrigeration components to bring the temperature back to the set point.

Temperature controllers have inputs. The inputs are used to measure a variable in the process being controlled. In the case of a temperature controller, the measured variable is temperature.

In addition to inputs, a temperature controller also has an output. Each output can be used to do several things including control a process (such as turning on a heating or cooling source), initiate an alarm, safe guard a process with a HI or LOW Limit shutdown or to retransmit the process value to a programmable logic controller (PLC) or recorder.

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Phone: 800 929-2845   |   Fax: 216 360-0425
24050 Commerce Park, Beachwood OH 44122
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