WIKA IUT-11 User Manual
Page 78
Universal IS Pressure Transmitter UniTrans
Appendix
22
669
39
.0
5 D
/G
B
06
/2
00
6
Subject to change due to technical modifications.
© Copyright WIKA Alexander Wiegand GmbH & Co. KG / Germany
WIKA Alexander Wiegand GmbH & Co. KG · Alexander-Wiegand-Str. · 63911 Klingenberg · (09372) 132 - 710 · Fax - 706 · E-mail: [email protected] · www.wika.de
153
13.3
Warranty Conditions
The pressure transmitter has a 24 month warranty in accordance with the WIKA
General Terms of Delivery.
13.4
Glossary
Adjustment
Allocation of the signal output range (4 ... 20 mA) to the desired
pressure measurement range or level measurement range.
Integration
Also damping: timely communication of the measurement
signal; rise time of the current output signal after a signal surge
Inversion
Conversion of the output signal from 4 ... 20 mA to 20 ... 4 mA
Nom. press. range
The operating pressure range for which the sensor is designed
Zero point
Start of the pressure measurement range
Parameterization
Also configuration: programming of the relevant parameters
and the pressure measurement range specific to the application
and measurement location.
Span
The programmed pressure measurement range
Span end point
The highest pressure value of the programmed measurement
span (end-point of the span)
Tank linearization
Determination of approximate volume/pressure ratio values
with non-linear correlations based on varying container designs
For example, a non-linear correlation exists between the filling
level and the volume in spherical containers.
During linearization, the non-linear volume is assigned the
4 ... 20 mA output signal from a table of values (proximity
process by means of up to 32 support points).
Defaults
The sensor parameters are programmed by the manufacturer
13.5
Units of Pressure Measurement
1 atm (atmospheres)
= 760 mm Hg = 760 Torr
= 1.033 kp/cm
2
= 0.1013 MPa
1 Torr
= 133.3 Pa
1 kp/mm
2
= 9.81 N/mm
2
= 9.81 MPa
1 bar
= 0.1 MPa
1 mbar
= 1 hPa (Hektopascal)
1 psi (pound per square inch) = 6.895 · 10
3
Pa
1 bar
= 33.5 feet of water
1 Pa
= 1,000· 10
-5
bar
1 mmHG
= 1,333 mbar
Repairs may only be carried out by the manufacturer. All other repairs and
device modifications are unauthorized and will void the warranty.
Warning