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Action TRANSPAK™ T797 & T798 Temperature Input Smart, Isolating Two-wire Transmitter

Provides an Isolated, Linearized Current Loop in Proportion to an RTD or Thermocouple Input.


Features:
  • HART Compatible Protocol (T798) or Field Configurable with Optional Alphanumeric Display (T797 & T798)
  • Intrinsically Safe Operation or Display & EP Enclosure
  • Eliminates Ground Loops
  • Programmable for 11 T/C Types, 6 RTD Types, mV or Ohm Inputs
  • Minimal Calibration with Long Term Stability 0.025%/Year

 

Description
The T798 is a Highway Addressable Remote Transducer (HART) based temperature transmitter that can be factory or field config- ured using an optional 1 or 2 line alpha-numeric display, optional PC based software and cable. Alternatively an HC275 Hand Held Communicator loaded with the T798 Device Description from the Hart Foundation Library can be used.

The T797 is a programmable temperature transmitter that can be factory or field configured using the same optional 1 or 2 line alphanumeric display as the T798.

Both the T798 and T797 accept a wide variety of thermocouples (B, C, E, J, K, L, N, R, S, T, U & special) and 2-wire, 3-wire, or 4-wire Platinum RTDs (DIN alpha = 0.00385, SAMA alpha = 0.003923 and special) as well as millivolt (mV) and resistance inputs. They provide an isolated 4-20mA output loop that is proportional and linear to the desired temperature input range. The factory can configure custom curves and accommodate other input types including 10 Ohm Copper and 120 Ohm Nickel RTDs.

Application
The T797 and T798 are ideal for any application requiring a 4-20mA two-wire transmitter loop output in proportion to a tem- perature, mV or resistance input. In applications where the advantages of communications with a HART based host computer or hand held terminal unit are utilized, the T798 proves to be a valuable solution. It offers the on line diagnostic functions and calibration certification features employed by a growing number of advanced users. Additionally, the efficiency advantages of PC based range programming can also be realized.

The T797 with the easy field programming display option provides a flexible 'off the shelf' solution to the majority of process temperature measurement applications, minimizing inventory requirements for spares.

Either mounted in an explosion proof enclosure or wired through intrinsic safety barriers, the T79X series can meet the stringent safety requirements of most hazardous environments.

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
sales@cthcontrols.com
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