Aquametrix 2200R ORP Analyzer/Controller User Manual Manual de usuario descargar pdf (Pagina 21)

Model 2200R Page 19

5.15 Status

5.15.1 The 2200R continuously checks the integrity of all stored data and monitors the

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

the display will change from green to red. When this occurs, enter the menu and

scroll through the menu until the STATUS LED illuminates. The display will show a

numerical code to assist you, in correcting the problem.

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

CODE

POSSIBLE CAUSE

SUGGESTED REMEDY

Normal Condition

No action required

ORP probe efficiency <60% or

>110% Nernst coefficient (Probe

slope out of tolerance

Clean probe and recalibrate. Salt

bridge / probe may need

replacement

Temperature Sensor off Scale

Check for open or short

connections of temperature sensor

input (Terminals BK & YL on TB2)

ORP reading off Scale

Verify process. Check for open or

short connections

Memory Loss

Call your AquaMetrix Rep. Or

Water Analytics directly

EPROM write failure

Call your AquaMetrix Rep. Or

Water Analytics directly

Calibration out of limit

Check scale setting (See range

change in Utility Menu)

Factory settings in force as a result

of the “Factory Reset Procedure”

ORP calibration not correct, or not

performed

Re-calibrate (See Sec. 5.2 & 5.3)

Temperature calibration not correct

or not performed

Calibrate temperature (See Sec.

7.4)

NOTE: Code 4 and 5 could be serious failures so the alarm relay will activate, in addition to the

status LED changing to red, if programmed by the position of DIP switch No. 5 of Bank S1.

Refer to Section 4.7.

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Aquametrix 2200R ORP Analyzer/Controller User Manual Manual de usuario Pagina 21

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