Aquametrix 2200D Dissolved Oxygen Controller/Analyzer User Ma Manuel d'utilisateur télécharger pdf (Page 17)

Model 2200D/P91 Page 15

5.7 Status

5.7.1 The 2200D continuously checks the integrity of all stored data and monitors the

condition of the measuring system. If a fault is detected, the FAIL LED above the

display will turn red. The STATUS in the operation menu will provide a numerical

code, giving a possible cause and a suggested remedy.

5.7.2 The following table shows the display codes, causes and remedies:

Code Possible Cause Suggested Remedy

0 Normal Condition No action required

1 Reserved

2 Temperature Sensor off Scale Verify process. Check for open or short

connections.

3 D.O. reading off Scale Verify process. Check for open or short

connections.

4* Memory Loss Call your Aquametrix representative

5 Reserved

6 Sensor Fault Check probe membrane for perforation

7 Factory Setting in force, as a Perform procedure according to Section 9.2

result of the ESCAPE procedure

NOTE: Code 4 could be a serious failure so the alarm relay will in addition to the red illumination of the

FAIL LED for Model 2200D-X-1 and STATUS LED for Model 2200D-X-2, if DIP switch 5 Bank

S1 is OFF.

5.8 Relay A Setpoint (For Model 2200D-X-1 only)

5.8.1 As shipped from the factory, Relay A is configured to control decreasing D.O.

However, you may change the direction of control by changing the position of DIP

switch 4 Bank S1. Please refer to Section 4.8.

5.8.2 The relay setpoint may be at any place on the scale. To establish the setpoint

proceed as follows:

a) Press CALL to enter the MENU. If the PASSWORD function is enabled, enter

the password then press CALL to illuminate the “%sat/ppm” indicator. If the

PASSWORD function is not enabled, “%sat/ppm” will illuminate at the first press

of CALL.

b) Use the down arrow button to illuminate the PPM LED located to the right side

of the display.

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Aquametrix 2200D Dissolved Oxygen Controller/Analyzer User Ma Manuel d'utilisateur Page 17