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Action PAK® AP4151 RTD Input, Signal Conditioners
Provides a DC Output in Proportion to an RTD Input.

  • Direct RTD Input
  • Integral Lead-Length Compensation
  • Wide-ranging input and output
  • Plug-in Installation
  • Selectable 120/240VAC Input Power


The AP4151-2000 is a wide-ranging, isolating signal conditioner for RTD inputs. The input is configurable for either 2- or 3-wire RTDs (2-wire requires a jumper wire across terminals 4 and 5 of the mounting base). The RTD types supported are Platinum, Nickel and Copper. Pushbutton ranging is used for adjusting the input and output ranges. The output can be set to be either linear to resistance or linear to temperature.

In most applications, the model AP4151-2000 can be used to replace previous models of AP4001 and AP4151.

The Action Pak model AP4151-2000 is useful in any application requiring a DC output from an RTD input. Typical applications include energy management and data acquisition of process temperatures. The output of the AP4151-2000 can drive a digital meter for direct display, or interface with a computer for monitor- ing and control.

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CTH Controls Inc.   CTH Controls Inc.
5100 South Service Road, Unit 2
Burlington, ON. L7L 6A5 Canada
Phone: 905-792-6829
Toll Free: 1-888-550-6829
Fax: 905-792-6902
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