Hanna Instruments HI 84181 - Manual (Page 15)

15
Notes:
• If the reading is out of range, the upper range value is
displayed blinking.
• If the evaluated slope is out of 30-140 % range the
instrument displays “- - - -” and “Wrong slope” message.
• If auto confirm mode is selected and beep feature is
enabled, the instrument will beep after reading is
confirmed until the addition of the standard is de-
tected. If the addition of the standard is not detected
after a period of time between 10 to 20 minutes,
according with the stability criteria, “Wrong standard”
message will be displayed.
• Use the 2000 µL automatic pipette to add exactly 2 mL
of HI 84181-1 Standard when the meter asks for it. If the
instrument is not in auto confirm mode, press READ to
start next measurement step.
• Wait until the reading is stable, CFM key displayed, if
the “Reading confirm” option is selected, and then
press CFM. If the “Reading confirm” option is
disabled the instrument automatically memorizes the
reading when this is stable and waits to add standard.
Until the standard addition is detected the instrument
will beep if beeper is enabled in Setup.
• Use the 2000 µL automatic pipette to add exactly 2 mL
of HI 84181-2 Standard when the meter asks for it. If
the instrument is not in auto confirm mode, press
READ to start next measurement step.
• Wait until the reading is stable, CFM key displayed, if
the “Reading confirm” option is selected, and then
press CFM. If the “Reading confirm” option is
disabled the instrument automatically memorizes the
reading when this is stable and computes result.
• At the end of the measurement procedure the result is
displayed as g/L (ppt) K + .