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Action TRANSPAK™ T713 RTD Input Isolating, Field Configurable Two-Wire Transmitter

Provides an Isolated, Linearized Current Loop in Proportion to a 3-Wire Pt100 RTD Input.

  • Field Configurable, Switch Selectable Input Ranges
  • Eliminates Ground Loops
  • Wide Ranging Zero & Span
  • Integral RTD Linearization/Output Linear to Temperature
  • FM Safety Approval for Hazardous Installations

T713-0013 (-200 C offset)


The T713 series has 6 widely adjustable input ranges and 2 output ranges, all of which are field selectable via top accessed DIP switches. The T713 provides 600VDC of isolation with outputs of either 4-20mA or 10-50mA. Current outputs are linear to tempera- ture. Urethane coating of internal circuitry for protection from corrosive atmospheres is included as standard.

The T713 has an 80% zero and span adjustability within any user selected input range. For example, Range 1 of Table 1 specifies 0 to 1000 F with a minimum span of 200 F (1000 - 200 = 800 , or 80%). This 80% adjustability allows the user to field calibrate the unit for the maximum (0 to 1000 ) down to any minimum (200 ) span (e.g. 740 to 940 ) - as long as that adjusted span remains within the selected 0 to 1000 F range. The same is true for any user selectable range: all spans are field adjustable from 20% (minimum span) to 100% of the specified range.

The T713 is useful in any application requiring isolation of a 2-wire loop current from a 3-wire RTD. Typical applications include SCADA and remote data acquisition such as monitoring boiler or custody transfer/pipeline temperatures. The output of the T713 can be used to drive a digital meter for direct display or interface with a computer for monitoring and control applications.

The T713 is FM approved for intrinsically safe operation in Class I, Division 1, Groups A, B, C, and D; Nonincendive Class I Division 2, Groups A, B, C and D, and Classes II & III, Division 2, Group G hazardous locations when installed per manufacturer's drawing 790-0024-00. Refer to model T805 for NEMA 4, FM/CSA/CENELEC approved explosion proof housing.

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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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