Aquametrix 2200C Conductivity Controller User Manual - Manual (Page 19)

• Adjust the offset and span of the 4-20 mA output
7.2 Access to Utility Menu
7.2.1 The Utility Menu is protected by password. To access the Utility Menu press and
hold both RUN and ENTER for five seconds until the PASSWORD LED illuminates.
The RUN LED will flash to warn that Utility Menu is in use. Now with the arrow keys
make the display read the password, "7". Press ENTER.
7.2.2 The Utility Menu is entirely separate from the Operations Menu but uses the same
LED display. Press CALL to step through the menu items.
Below is the cross-reference between menu items:
Operations Menu Utility Menu
Range Range Change
Output High Temperature Output 100% (5Vdc)
Output Low Temperature Output 0% (0Vdc)
Control Relay Setpoint 0-1mA / 0-5Vdc Adjust low
Control Relay Deadband 0-1mA / 0-5Vdc Adjust high
Alarm High 4-20 mA Output Adjust Low
Alarm Low 4-20 mA Output Adjust High
7.3 Range Selection
7.3.1 The table below shows the ranges which are available for the 2200C together with
the relevant cell constant for each range.
Range uS Required Cell Constant
0-2uS 0.01
0-5 uS 0.01
0-10 uS 0.05