Aquametrix 2200C Conductivity Controller User Manual - Manual (Page 22)

a) Turn off the power to the instrument. Connect your DVM in series with
the 4-20 mA output terminals on the power supply board.
b) Turn on the power. Enter the Utility Menu as described in 7.2.1.
c) Press CALL until the ALARM HIGH LED illuminates, which is "4-20 mA Output
adjust, low" in the Utility Menu (See table in 7.2.2.) Now use the arrow keys to
make your DMM read 8 mA. Press ENTER twice to confirm.
d) Press CALL and the ALARM LOW LED illuminates, which is "4-20 mA Output
adjust, high" in the Utility Menu (See table in 7.2.2). Now use the arrow keys to
make your DMM read 16 mA. Press ENTER twice to confirm.
e) Press RUN to return to on line or press MENU to proceed to another item in the
Utility Menu.
8.0 DIAGNOSTICS
8.1 Description
8.1.1 The 2200C has diagnostic features which alerts the operator to invalid entries and
memory loss. Invalid entries are indicated by the flashing of the appropriate menu
LED. The flashing will commence after RUN is pressed and will continue until the
errors are corrected. Memory loss is indicated by the flashing of TEST and by the
alarm relay if enabled by DIP Switch No. 5 of Bank S1. See Section 4.7.3.