T287-0000 EUROTHERM CONTROLS, T287-0000 Datasheet

T287-0000

Manufacturer Part Number

T287-0000

Description

Isolation Amplifier

Manufacturer

EUROTHERM CONTROLS

Datasheet

1.T287-0000.pdf (4 pages)

Specifications of T287-0000

Output Accuracy

Â± 0.01% Of Span

Signal Input Type

Programmable

Configuration Setup

Software

Supply Voltage Max

40VDC

Iso-amp Mounting Type

DIN Rail

Signal Output Type

Current

Supply Voltage Min

9VDC

Lead Free Status / RoHS Status

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T287

Programmable Isolating

Universal Input 2-Wire

Transmitter

Provides an Isolated, Linearized

Current Loop in Proportion to a

Thermocouple, RTD, Millivolt,

Potentiometer or Resistance Input

Benefits

Universal Input Reduces

Inventory Levels

Eliminates Ground Loops

Supports Single or Dual Inputs

User-Friendly Configuration

Custom Linearization

for Special T/C Types

DIN Rail Mounting Adapter

Included

Description

The T287 is a programmable two-wire transmitter that is configured to provide an isolated 4-20mA

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.

Configuration is performed by connecting the transmitter to a standard (9-pin RS-232) PC serial port

using an isolated interface adapter, and running a user-friendly Windows-based program. All of the

configuration information can be defined and modified using only a PC, the interface adapter, and the

transmitter. No loop supply, input simulation or meter on the output is required. The fully isolated

adapter reduces the risk of damage to the PC which can be caused by spikes and surges on field wiring

entering the computer via its unprotected serial port.

The T287 yields higher accuracy and long-term stability with lower power consumption than prior

generation transmitters. The T287 automatically performs self-tests and auto-calibration while in

service, resulting in a stability of better than ±0.1% of span over 12 months.

Operation

The T287 comes from the factory pre-configured as an RTD transmitter, programmed for a type Pt-

100, 3-wire RTD with a temperature range of 0 to 100°C. The unit can be easily reconfigured using

the C680-0001 Configuration Software. A single copy of the software is all that is required for an

unlimited number of T287 transmitters.

Units already in service can have their configuration “up-loaded” to the PC. Their operating

parameters can be reviewed, and if necessary, revised and downloaded again. All configuration

parameters can be stored in a configuration file on the PC for future use. The Configuration &

Calibration Software, Isolated RS-232/T287 Communications Adapter and User’s Guide are all

included in the model C680-0001.

Related parts for T287-0000

T287-0000 Summary of contents

Page 1

... Operation The T287 comes from the factory pre-configured as an RTD transmitter, programmed for a type Pt- 100, 3-wire RTD with a temperature range 100°C. The unit can be easily reconfigured using the C680-0001 Configuration Software. A single copy of the software is all that is required for an unlimited number of T287 transmitters. Units already in service can have their configuration “ ...

Page 2

... Quick Start exercise. SINGLE vs. DUAL INPUT MODE 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 ...

Page 3

... Printing this report before and after calibrating a unit provides “as found” and “as left” documentation. Calibration and Adjustment The T287 is supplied factory-calibrated, with calibration reference parameters stored in the unit’s non-volatile memory. Calibration requires high precision input sources for parameters such as mV, mA, resistance and temperature ...

Page 4

... Models & Accessories Models & Accessories Models & Accessories Models & Accessories Models & Accessories Ordering Information Specify: 1. Model: T287-0000 2. Model: C680-0001 Isolated Communications Adapter, Configuration and Calibration Software, and User’s Guide. 3. Model: C680-0002 Trimmer. Accessories 9046 Action Pak 24/40VDC, 65mA Loop Power ...

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