Introduction, Presentation – ABUS Technologies HART? Block Temperature Transmitter User Manual

Page 4

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ABUS TECHNOLOGIES INC.

4


HART

Block

1. INTRODUCTION

HART Block is a Smart and universal 2-wire In-head transmitter for temperature

and other measurement applications. HART Block is the Intrinsic Safe version for use
in Ex-applications. HART Block is fully HART-compatible, with communication through
the HART protocol, directly on the 4-20 mA output loop, by using general hand-held
HART Communicator, which facilitates the access to and use of functions like
transmitter configuration, documentation, monitoring and calibration.

2. PRESENTATION



2.1 Features

1. Universal settings with HART-protocol for various input signals.
2. 2 wire technology, 4 to 20mA analogue output
3. High accuracy in total ambient temperature range
4. Galvanic isolation
5. An internal temperature sensor for active temperature compensation(For T/C)
6. Wide voltage supply range
7. Expanded resistance input (max 10K )
8. Expanded voltage input (max 2KmV)

2.2 Technical Parameters

OUTPUT

Output signal:

4 ~ 20 mA

Signal on alarm:

Under ranging Linear drop to 3.8 mA.

Over ranging Linear rise to 20.8 mA.

Sensor Break; Sensor open-circuit 3.8 mA.

Load:

max.(V

Power Supply

-7.5 V)/0.0208 A

Linearization/Transmission behaviour: Temperature linear, resistance linear, voltage

linear.

Galvanic isolation:

U=2 KV AC (input/output).

Power Supply (polarity protected):

7.5 ~ 45 VDC (without display).

PERFORMANCE

Response time:

1s

Reference operating conditions:

Calibration temperature 23°C (73.4°F) ±5K

Long term stability:

≤0.05% per year.

Switch on delay:

≤ 5s

Influence of ambient:

Negligible

Load Influence:

Negligible

Power Supply Influence:

Negligible

Self stability configuration:

0 ~ 2%

Filter configuring:

0 ~ 160 μ A

Resolution:

0.3 μ A

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