Metex 2200C Conductivity Analyzer/Controller - Manual (Page 18)

Model 2200C Page 16
a) 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.
b) 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
0 Normal Condition No action required
1 Reserved
2 Temperature Sensor off Scale Check for open or short
connections of temperature sensor
input (Terminals RD & GN on TB2)
3 Conductivity reading off Scale Verify process. Check for open or
short connections. WH and BL
wires
4* Memory Loss Call your AquaMetrix Rep. Or
AquaMetrix directly
5 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.