Instruction Manual

l Serial number
l Technical data
3.2 Principle of operation
IPT-1* Vers. 3.0 is a pressure transmitter for measurement of
overpressure, absolute pressure or vacuum. Measured products are
gases, vapours and liquids in measuring ranges up to 4000 bar
(400 MPa); with front-flush version also viscous liquids in measuring
ranges up to 600 bar (60 MPa).
The process press ure acts on the sensor element via the stainless
steel diaphragm. The process pressure causes a resistance change
which is converted into a corresponding output signal and outputted as
measured value.
1)
Power supply via the Profibus DP/PA segment coupler. A two-wire
cable according to Profibus specification serves as carrier of both
power and digital data transmission for multiple sensors. The
instrument profile of IPT-1* Vers. 3.0 corresponds to profile specifi-
cation version 3.0.
The GSD (instrument master files) and bitmap files necessary for
planning your P rofibus-DP-(PA) communication network are available
from the download section on the WIKA homepage
www.wika.com
under "Service". There you can also find the appropriate certificates. In
a PDM environment, an EDD (Electronic Device Description) is also
required to enable the full range of sensor functions (also available as
a download).A CD with the appropriate files can be ordered via e-mail
under [e-mail] or by phone from one of the WIKA
agencies.
The backlight of the indicating and adjustment module is powered by
the sensor. Prerequisite is a certain level of operating voltage.
The data for power supply are specified in chapter "Technical data".
This f unction is available at a later date for instruments with StEx,
WHG or ship approval as well as country-specific approvals such as
those according to FM or CSA.
3.3 Operation
IPT-1* Vers. 3.0 can be adjusted with different adjustment media:
l with indicating and adjustment module
l the Simatic adjustment program PDM
The entered parameters are generally saved in IPT-1* Vers. 3.0,
optionally also in the indicating/adjustment module.
1)
Measuring ranges up to 16 bar: piezoresistive sensor element with internal
transmission liquid, with measuring ranges up to 25 bar: Strain gauge
(DMS) sensor element on the rear of the stainless steel diaphragm (dry).
Application area
Functional principle
Power supply and bus
communication
GSD/EDD
8 Process pressure transmitter IPT-1* Vers. 3.0 - metalic sensor • Profibus PA
3 Product description
31544-EN-081211