User Manual

<6. OPERATION OF SC (Conductivity)>

6-7

IM 12A01A02-01E 5th Edition : Oct. 31, 2013-00

n Contact status

This screen is displayed only if the PH201G distributor is used and “PH201G” is selected in

communication setup.

n c.c. (factory)

This parameter displays the cell constant (factory setting).

The cell constant (factory setting) is determined by factory calibration made during sensor

manufacturing.ThisvaluecanbesetinCommissioning→Measurementsetup→Sensorsetup.

The cell constant is indicated on the sensor or cable label.

n c.c. (adjusted)

This parameter displays the cell constant (adjusted).

The cell constant (adjusted) is a cell constant that has been calibrated and is set by calibration

action.

Whenthesystem’scellconstantisadjustedon-linebycalibrationusingaprocesssolutionor

buffer solution, a new cell constant is logged here. The difference between this value and the

default value set at factory shipment will not be large. If there is a large difference between them,

check whether the sensor is broken or contaminated.

n Temp. comp. 1

This parameter shows the temperature compensation method for 1st measurement. The setting

ismadeinCommissioning→Measurementsetup→Temp.comp.

n Temp. comp. 2

This parameter shows the temperature compensation method for 2nd measurement. The setting

ismadeinCommissioning→Measurementsetup→Temp.comp.

2nd measurement does not imply that two measurements can be made individually, but it means

thattwotypesofcompensationmethodscanbecongured,whichenablestwophasestobe

monitoredaccuratelyinthesameprocess.Anexampleismonitoringtheswitchingbetween

process and washing solutions.

n Polarization

Thisparameterindicatesthedegreeofpolarizationofthesensor.Itisanindexofthedegree

of sensor contamination (adherents). The greater the value, the more the polarization has

progressed. If the value is high, maintenance should be performed on the sensor as soon as

possible.

n Sensor Ohm

This parameter represents the non-compensated resistance of the sensor.

n USP

USPstandsforUnitedStatesPharmacopeiaandindicatesthemarginofsafetyforthewaterfor

injection (WFI) conductivity at each temperature as a percentage.