ATI
Q46C2 2Electode Conductivity System
Part 5
– Configuration
30
O&M Manual
Rev-H (6/19)
5.22 Measure Menu [MEASURE]
The default menu for the system is the display-only menu MEASURE. This menu is a display-only
measurement menu, and has no changeable list items. When left alone, the instrument will
automatically return to this menu after approximately 30 minutes. While in the default menu, the
UP arrow allows the user to scroll through the secondary variables on the lower line of the display.
A brief description of the fields in the basic transmitter version is as follows:
TRANSMITTER MEAS SCREENS:
25.7°C
Temperature display. Can be displayed in °C or °F, depending on user
selection. A small
“m” on the left side of the screen indicates the transmitter
has automatically jumped to a manual 25°C setting due to a failure with
the temperature signal input.
TDS = 200 ppm
Total Dissolved Solids (TDS). Displays TDS of process.
100% 20.00 mA
PID Status screen (if enabled.) Shows the present controller output level
on left, and actual transmitter current on the right. The controller can be
placed in manual while viewing this screen by pressing and holding the
ENTER key for 5 seconds until a small f
lashing “m” appears on the screen.
At that point the controller output can be adjusted up or down using the
UP and LEFT arrow keys. To return to automatic operation, press and
hold the ENTER key for 5 seconds and the “M” will disappear.
Loop Current #1
Indicates current output setting on TB1
Loop Current #2
Indicates current output setting on TB2
Cell Const
Indicates cell constant setting. See Part 7 - Calibration for more details.
Q46C2 v4.00
Transmitter software version number.
Note: A display test (all segments ON) can be actuated by pressing and holding the ENTER
key while viewing the model/version number on the lower line of the display.
The MEASURE screens are intended to be used as a very quick means of looking up critical values
during operation or troubleshooting.
5.23 Calibration Menu [CAL]
The calibration menu contains items for frequent calibration of user parameters. There are six
items in this list: Cal Cond, Cell Temp, Cal Zeros, Cell Const, TC Factor, and Cond Range.
Cal Cond
The conductivity calibration function allows the user to adjust the
transmitter offset and span reading to match reference buffers, or to adjust
the sensor offset to match the sample reading. See Part 8 - Calibration
for more details.
