Programmable FOUNDATION fieldbus temperature transmitter

The transmitter converts a temperature sensor input to a FOUNDATION fieldbus H1, two-way digital communication protocol that is ready for interface to a DCS, computer-based SCADA system or asset management software.
By Plant Engineering Staff December 18, 2007

The TFZ Programmable FOUNDATION fieldbus temperature transmitter can be installed on the same segment with all standard FOUNDATION fieldbus devices. The transmitter converts a temperature sensor input to a FOUNDATION fieldbus H1, two-way digital communication protocol that is ready for interface to a DCS, computer-based SCADA system or asset management software. The device saves wire and installation costs by allowing up to 32 field devices (126 with repeaters) to be networked onto one, low cost FOUNDATION fieldbus H1 segment. It requires only 10.5 mA for normal operation.

The bus-powered, two-wire transmitter offers dozens of input and operation choices. It sets up from the control room over segment wiring %%MDASSML%% using a standard FOUNDATION fieldbus configuration tool %%MDASSML%% to handle 14 RTD types, nine thermocouple types, as well as direct millivolt and resistance/potentiometer inputs. Other features of the temperature transmitter include continuous sensor diagnostics, 20-bit input resolution, RFI/EMI protection and ambient temperature compensation. It has custom linearization curves that can be programmed using the fieldbus configuration tool, and works up to five years between scheduled calibrations.

Moore Industries-International Inc.
www.miinet.com