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Hart applications – Atec Fluke-740 Series User Manual

Page 5

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Fluke 744: The first HART calibrator that is easy to use.

HART Applications

Versatile HART protocol support
The 744 supports the commands contained in HART
protocol version 5.7. With 2 MB of memory, the 744
supports a substantial set of HART instructions:

• Universal commands — provide functions that are

implemented in all field devices, for example, read
manufacturer and device type, read primary variable
(PV), or read current output and percent of span

• Common practice commands — provide functions

that are common to many but not all field devices,
for example read multiple variables, set damping
time, or perform loop test

• Device-specific commands — provide functions

that are unique to a particular field device, for
example sensor trim. The 744 supports these
devices:

Today’s 744 supports device-specific instructions for a
variety of popular instruments. Additional support may
be added periodically with a simple software update
available on diskette or via download for a modest
upgrade fee.

HART operating modes supported
For Point to Point operation, the most commonly

used mode, connects the 744 to a single HART
device in a 4-20 mA loop.

In Multi-Drop mode, several HART instruments can

be bussed together. The 744 searches for each,
identifies addresses in use, and allows you to select
the instrument for calibration and related operations.

In Burst Mode, the HART instrument transmits

bursts of data without waiting to be interrogated by
a master unit. The 744 can take transmitters out of
burst mode during test or calibration, then later
restore them to burst mode.

What’s new in Version 2.5

• Device-specific calibration

support for new instruments:

Micro Motion 2000, 2000 IS,

9701, 9712 and 9739 coriolis
flow transmitters

Fuji FCX and FCXA2 pressure and

FRC temperature transmitter

• New features:

Support for New Hart Scientific dry

blocks: 7103, 9007, 9011, 9023,
9103, 9105, 9107, 9122, 9127, 9132,
9133 and 9150

Enhanced dry block delay setting for

temperature switch testing

Switch test without reset

1

Sensor Trim not supported

5

Fluke Corporation

740 Series Brochure

Manufacturer

Pressure Instruments

Temperature Instruments

Coriolis Instruments

ABB/Kent-Taylor

600T

658T

1

ABB/

Contrans P,

1

Hartmann & Braun

AS 800 Series

Endress & Hauser

CERABAR S,

TMT 122

1

, TMT 182

1

,

CERABAR M,

TMT 162

1

DELTABAR S

Foxboro Eckardt

TI/RTT20

1

Foxboro/Invensys

I/A Pressure

Fuji

FCX

FRC

FCXAZ

Honeywell

ST3000

STT25T

1

, STT25H

1

Micro Motion

2000

2000 IS

9701

9712

9739

Moore Products

344

1

Rosemount

1151

3044C

2088

644

3001C

3144

3051, 3051S

3244, 3144P

Siemens

SITRANS P DS
SITRANS P ES

SMAR

LD301

TT301

1

Viatran

I/A Pressure

Wika

UNITRANS

T32H

1

Yokogawa

EJA

YTA 110, 310 and 320