T287 Programmable Isolating Universal Input 2-Wire Transmitter

Brand: Eurotherm
Does not ship to United States

The T287 is a programmable two-wire transmitter that is configured to provide an isolated 4-20 mA signal in proportion to the input signal.

The T287 accepts thermocouple, 2-wire, 3-wire, or 4-wire RTD, potentiometer, resistance and millivolt inputs.

The T287 supports either single or dual inputs. In the dual input mode, either input can be selected to control the output, or math functions can be applied in which both inputs have an effect on the output.

The functions available are Sum, Difference, Average, Higher of the two or Lower of the two inputs.

Typical applications include providing accurate, stable signals to distributed control systems (DCS), supervisory control and data acquisition systems (SCADA), environmental monitoring and control systems (EMCS), data acquisition and control systems (DACS) and custody transfer/pipeline systems.
Features
  • Universal input reduces inventory levels
  • Eliminates ground loops
  • Supports single or dual inputs
  • User-friendly configuration
  • Custom linearization for special thermocouple types
  • DIN rail mounting adapter included

Specifications

Brand

Applications

  • Custody Transfer
  • Data Acquisition & Control Systems (DACS)
  • Distributed Control Systems (DCS)
  • Environmental Monitoring & Control Systems (EMCS)
  • Pipeline Systems
  • SCADA Systems

Approvals & Certifications

  • CE

Communication

  • 9-Pin RS-232

Compensated Temperature

  • Cold Junction Compensation: Automatic to within ± 0.7° C (1.26° F) for AlL Thermocouples

Electrical Connectors

  • 6-Pin Connector

Humidity

  • 0 to 95 % Relative Humidity, Non-Condensing

Input

  • 4-20 mA Signal in Proportion to the Input Signal
  • Damping Factors: Programmable 0 to 64 seconds, to 0 to 120 % of Input Range, Using Config Software
  • DC mV: -10 to 100 mV
  • Potentiometer

Isolation

  • 2,000 Vdc, Input to Output

Linearity

  • Input Linearity: Better than 0.01 % of Span (mV Input)
  • Output Linearity (D/A): Better than 0.02 % of Output Span

Linearization

  • Sensor Linearization: Better than 0.1° C (0.18° F) for RTDs
  • Sensor Linearization: Better than 0.2° C (0.36° F) for Thermocouple

Mounting

  • DIN Rail
  • Head Mount

Operating Temperature

  • -40° to 85° C (-40° to 185° F)

Output

  • 4-20 mA

Range

  • Minimum Range: 2 mV

Resistance

  • Input (Potentiometer): 0 to 20 kiloohms
  • Input: 0 to 400 ohms

Resolution

  • Output Resolution: 0.015 % of Span (2.5 µA)

Response Time

  • 0.3 second, to 90 % of Input (> 3 Updates/second)

RFI/EMI Protection

  • RFI Protection: < 1 % Effect of Span at 20 to 1,000 MHz & at Field Strength of 20 V/m

RTD Type

  • 2, 3, 4-Wire, Pt-100
  • Ni110
  • Ni120

Stability

  • Better than ± 0.1 % of Span for 12 Months
  • Temperature Stability: 0.015 %/°C Combined Zero & Span

Storage Temperature

  • -55° to 125° C (-67° to 257° F)

Supply Voltage

  • 9-40 Vdc at No Load, Reverse Polarity Protected
  • Supply Voltage Effect: < ± 0.003 % Per Volt
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