Yokogawa EXA ISC202 2-wire Conductivity Transmitter/Analyzer User Manual

Page 89

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IM 12D06A03-01E

Appendix 2-17

4. Temperature Compensation Coefficient Setting Example

5. Calibration in Air example (Air Set)

*HOLD

*CODE 04

*AIR

*START

*END

Confirm that display is 0.0 μS/cm

*TEMP

*SERV

¼

YES

NO

NO

YES

YES

YES

ENT

example5E.eps

*OUTP

*HOLD

*NaCl

*TC

*SERV

TC 1.24

*TEMP

CODE 21

α

=

K

t -

K

ref

T - T

ref

K

ref

100

x

T = Measured temperature ( °C )

Kt = Conductivity coefficient at temperature T ( °C )

Tref = Reference temperature ( 25 °C )

Kref = Conductivity coefficient at temperature Tref

The temperature compensation coefficient is calculated as follows:

MODE

Escape

ENT

YES

NO

NO

NO

YES

YES

ENT

¼

example4E.eps

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