User Guide

35
• Leave the HI7638 conductivity probe
in air (dry probe).
• When the power is on, the ammeter should read "4.0 mA" or the
HI8936L transmitter with LCD should display "0".
• If not adjust the OFFSET trimmer
of the HI8936 transmitter to ob-
tain "4 mA" or "0" on the HI8936L.
• The HI 8931 controller should dis-
play "0" value.
• If not adjust the OFFSET trimmer of
HI8931 to display a zero reading.