Yokogawa ISC40 Inductive Conductivity Sensor - Manual (Page 9)

IM 12D8J2-E-E
9
2 GENERAL SPECIFICATIONS
The ISC40 inductive conductivity sensor is suitable for use with the Yokogawa inductive
conductivity analyzers.
2.1 Measuring elements
: Toroïds with high permeability magnetic material
Pt1000 or 30k temperature element
2.2 Materials
Wetted parts sensor
Body ISC40*-G* : 30% glass filled PEEK, FDA approved
Body ISC40*-T* : PFA, FDA approved
Non-wetted parts sensor
Sealing gasket : Viton
Thread part : AISI 316 SS
Options for sensor
All options except /TFD : AISI 316 SS and O-ring material as wetted part
/TFD : AISI 316 SS as non-wetted part
TFM and Kalrez as wetted part
2.3 Functional specifications (at 25°C)
Temperature element : Pt1000 to IEC 751
30k NTC
Installation factor : 1.88 cm-1 nominal for PEEK sensor
3.00 cm-1 nominal for PFA sensor
Actual installation can change this factor.
If there is less than 25mm spacing between sensor and holder,
in-situ calibration is necessary to meet the specified accuracies
(see fig. 1)
Fig 1: Actual installation factor as function of spacing around the sensor
Note: The ISC40 temperature sensor is designed for cell compensation and for indication.
It is NOT designed for process temperature control.
2.4 Dynamic specifications
Response time : t
90
< 5 min. for PEEK sensor
conductivity : t
90
< 10 min. for PFA sensor
D
non conductive
piping
conductive
piping
D i n m i l l i m e t e r s
0 10 20 30 40 50
0.90
Correction factor (x nominal C.C.)
0.95
1.30
1.25
1.20
1.00
1,05
1.10
1.15
O n l y f o r P E E K