Introduction, Presentation – ABUS Technologies HART? Block Temperature Transmitter User Manual
Page 4
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