Metex 2200C Conductivity Analyzer/Controller User Manual

Page 18

Model 2200C

Page 16

To enter the menu press CALL, the TEST LED will be illuminated. Use the
arrow keys to change the display. The outputs will react to the changes in
the display, as if the unit was online and the process was actually changing.

Press RUN to place the instrument on line, or press CALL, for another
menu selection.

5.10 Temperature

5.10.1 The temperature of the process can be read at any time by entering the menu and

scrolling through the menu until TEMPERATURE LED is illuminated. Either °C or
°F will be indicated depending on the position of DIP switch No.1 of Bank S1. If the
temperature is suspected of being incorrect, place the S41 switch on the back of the
main circuit board, in the up position, (this places a 3000 ohm across the RD and
GN terminals) the temperature should read 25°C or 77°F.

5.10.2 The 0-5 Vdc and 0-1 mA analog outputs can be dedicated to follow 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. Refer to Section 7.4.

5.11 Status

5.11.1 The 2200C 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.

CODE

POSSIBLE CAUSE

SUGGESTED REMEDY

Normal Condition

No action required

Reserved

Temperature Sensor off Scale

Check for open or short
connections of temperature sensor
input (Terminals RD & GN on TB2)

Conductivity reading off Scale

Verify process. Check for open or
short connections. WH and BL
wires

Memory Loss

Call your AquaMetrix Rep. Or
AquaMetrix directly

Calibration out of limit

Check scale setting (See range
change in Utility Menu)

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

illumination of the FAIL LED if Dip Switch No. 5 of Bank S1 is off.