Aquametrix 2200P pH Analyzer/Controller User Manual User Manual
Page 21
Model 2200P
Page 19
5.13.2 The 0-5 Vdc and 0-1 mA analog outputs can be selected to track the process
temperature by simply placing DIP switch No. 8 of Bank S1. in the OFF position.
The temperature span of the output is set to the utility menu. See Section 7.4.
5.14 Status
5.14.1 The 2200P 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
0
Normal Condition
No action required
1
Reserved
2
Temperature Sensor off Scale
Check for open or short
connections of temperature sensor
input (Terminals BK & YL on TB2)
3
PH reading off Scale
Verify process. Check for open or
short connections
4*
Memory Loss
Call your AquaMetrix Rep. Or
Water Analytics directly
5
Reserved
6
Calibration out of limit
Check scale setting (See range
change in Utility Menu)
7
Factory settings in force as a result
of the “Factory Reset Procedure”
8
PH calibration not correct, or not
performed
Re-calibrate (See Sec. 5.2 & 5.3)
NOTE: Code 4 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. See
Section 4.7.
6.0
OPERATING HINTS
6.1 Probe Care
6.1.1
Keep the probe clean using the procedure recommended in the probe manual.
Although the differential probe will continue to operate when fouled, excessive
fouling may cause incorrect readings or very slow response.
6.1.2
Be sure the probe cable is well protected. The probe cable should be run in conduit
but never in the same conduit with line power. Sufficient excess cable should be
allowed for removal of the probe for cleaning and calibrating.