Wika Pascal ET Instrukcja Użytkownika Pobierz pdf (Strona 19)

6 Commissioning, operation

WIKA Operating Instruction, Model Pascal ET and Pascal ET/IS 19

6.1.2.3 Pressure module

It is possible to install two pressure modules, each one can support one external transducer.

Accordingly 2 external sensors can be connected at the same time.

Transducers selection with range and their resolutions are in the following table.

External transducers *

Range

Precision (% FS)

Accuracy (% FS)

Typical Resolution

Gauge

-60…+60 mbar

0,1

0,15

0,01 mbar

-500…+500 mbar

0,015

0,025

0,01 mbar

-900…+1500 bar

0,015

0,025

0;01 mbar

0…7 bar

0,015

0,025

0,1 mbar

0…21 bar

0,015

0,025

0;1 mbar

0…50 bar

0,015

0,025

1 mbar

0…100 bar

0,015

0,025

1 mbar

0…200 bar

0,015

0,025

10 mbar

0…400 bar

0,015

0,025

100 mbar

0…700 bar

0,025

0,05

100 mbar

0…1000 bar

0,025

0,05

100 mbar

Absolute

0…1500 mbar abs.

0,015

0,025

0,01 mbar

0…2500 mbar abs

0,015

0,025

0,01 mbar

0…5 bar abs.

0,015

0,025

0,1 mbar

0…7 bar abs.

0,015

0,025

0,1 mbar

0…21 bar abs.

0,015

0,025

0,1 mbar

0…81 bar abs.

0,015

0,025

1 mbar

0…100 bar abs.

0,015

0,025

1 mbar

* Other ranges available on request

6.1.2.4 HART module

The HART module allows communication with HART instruments (usually transmitters) permitting

to acquire digital measurements, instrument data and modifying settings. It can be inserted in the

front panel in place of OUT A or OUT B module.

It is a fully galvanically isolated board (like IN and OUT modules) from internal electronics of the

Pascal.

The module allow the 24V to supply directly the output loop for the transmitter.

Further, it can supply a 250Ω load resistance electronically switchable necessary to HART

communication, permitting to avoid the use of an external one.

The following figure shows the pin connections in HART module:

Figure 3 – HART module

1 2 ... 14 15 16 17 18 19 20 21 22 23 24 ... 87 88

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