Emerson PN 51-FCL-1056 instruction manual Measurement, Sensor1Sensor

MODEL FCL-1056	SECTION 5.0
	PROGRAMMING THE ANALYZER

5.RESOLUTION. The pH display resolution is user selectable: XX.X or XX.XX.

6.FILTER. The analyzer applies a software filter to the raw voltage value coming from the pH sensor. The filter reduces noise, but increases the response time. See section 5.5.2 for more information.

7.REFERENCE IMPEDANCE. Usually the impedance of the reference electrode in a pH sensor is low. However, a few pH sensors have high reference impedance, and the analyzer must be told that the reference impedance is high. The pH sensor used in the FCL-02 has low reference impedance.

5.5.4Procedure – Configuring the Measurement

1.Press MENU. The main menu screen appears. Move the cursor to Program and press ENTER.

Program

Outputs

Alarms

Measurement

Temperature

2.Choose Measurement.

Configure?

Sensor1Sensor 1

Sensor 2

S1 Configure

MeasureMeasure: Free Chlorine

Units: ppm

Filter: 5 sec

Free Cl Correct Live/C

3.The screen at left appears only if you have an FCL-02. Choose Sensor 1 (chlorine) or Sensor 2 (pH).

4.The screen summarizes the present configuration for sensor 1 (chlorine). If you have an FCL-02 the items are Measure, Units, Filter, Free Cl Correct, and Resolution. If you have an FCL-01, the items are Measure, Units, Filter, Manual pH, and Resolution. Only four items are shown at a time. To view the remaining items, scroll to the bottom of the screen and continue scrolling.

To make a change, move the cursor to the desired line and press ENTER. A screen will appear in which the present setting can be edited. To store the setting press ENTER.

a.For Measurement choose Free Chlorine. Do not choose pH

Independ. Free Cl.

b.Leave Filter at the default value (5 sec) unless readings are noisy.

c.If you have an FCL-02, choose either Live/Continuous or Manual for Free Cl Correct (free chlorine correction). Live/Continuous means the analyzer will use the pH measured on the second channel to continuously correct the chlorine reading for changes in the sample pH. Manual means the analyzer will use a fixed pH value entered by the user to convert the raw chlorine signal to a ppm reading.

d.If you have an FCL-01, Free Cl Correct (free chlorine correction) will not appear. Instead, enter the desired pH correction value for Manual pH.

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