Hanna Instruments HI 84185 - Manual (Page 17)

17
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 detected.
If the adding of the standard is not detected after a
period of time between 10 to 20 minutes, in according
with the stability criteria, “Wrong standard” message
will be displayed.
• Use the 1000 µL automatic pipette to add exactly
1 mL of HI 84185-1 Standard and immediatly close
the stopper.
• 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 1000 µL automatic pipette to add exactly
1 mL of HI 84185-2 Standard and immediatly close
the stopper.
• 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 mg/L (ppm) N-NH
3
.