Eliminates Ground Loops

Field Configurable, Switch Selectable Input       Ranges

Wide Ranging Zero & Span

Integral RTD Linearization/ Output Linear to       Temperature

FM Safety Approval for Hazardous Installations

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 temperature. 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.

Application
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 F713 for NEMA 4, FM/CSA/CENELEC approved explosion proof housing.