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Action TRANSPAK™ T723 Thermocouple Input Isolating, Field Configurable Two-Wire Transmitter

Provides an Isolated Current Loop in Proportion to a Thermocouple Input.


Features:
  • Field Configurable Switch Selectable Input Ranges
  • Eliminates Ground Loops
  • Integral Cold-Junction Compensation
  • 600V Input to Output Isolation
  • Wide Ranging Zero and Span Adjustability (80%)
  • FM Safety Approval for Hazardous Installations

T723-0000 (Type J/K/T input)
T723-0001 (Type E/R/S input)

 

Description
The T723 offers a choice of J/K/T or E/R/S input ranges and 2 output ranges, which are field selectable via top-accessed DIP switches (see Tables 1-2). The T723 provides 600 VDC input to output isolation with outputs of either 4-20mA or 10-50mA. The current output is linear to the equivalent mV thermocouple signal and non-linear to temperature, which is useful in data acquisition systems that utilize linearizing software. Upscale burnout (maximum output with an open thermocouple) is standard.

The T723 has 80% zero and span adjustability within any user selected input ranges shown in Table 1 and 2. For example, Range K1 of Table 1 specifies 0 to 500 C with a minimum span of 100 C (500 -100 = 400 , or 80%). This 80% adjustability allows the user to field calibrate the unit from the maximum (0 to 500 ) down to any minimum (100 C) span (e.g. 14 C to 114 C) as long as that adjusted span remains within the selected 0 to 500 C 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.

Application
The T723 is useful in any application requiring isolation of a 2-wire loop current from a thermocouple input. Typical applications include energy management and data acquisition such as moni- toring remote boiler temperatures. The output of the T723 can interface with a digital meter for direct display or interface with a computer for monitoring and control applications.

The T723 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, field mount housing.

Click here for the complete information in .pdf format

 

 
 
CTH Controls Inc.   CTH Controls Inc.
6-1500 Upper Middle Rd. W. Suite 220
Oakville, ON, Canada, L6M 0C2
Phone: 905-792-6829
Toll Free: 1-888-550-6829
Fax: 905-792-6902
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