Hanna Instruments HI 121 - Manual (Page 33)

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When in normal measurement mode:
• If only “AL.LO” item is set, the instrument will beep when the reading
is below alarm low value.
• If only “AL.HI” item is set, the instrument will beep when the reading
is above alarm high value.
• If both alarms are set, the instrument will beep when the reading is above
alarm high value or below alarm low value.
Note: If “AL.HI” item is less than or equal to “AL.LO” item, “WRONG” tag
will blink.
AutoLOG SETUP
AutoLOG Start Condition
• Select the “Strt” item. The displayed AutoLOG start condition will be the
previous set one. The default value is “btn” – button (start with key).
• Press and keep hold down MODE while in view mode, when time is
displayed, to view the set date.
• If pressing CAL while in view mode, the start time will be displayed.
Notes: • Pressing CLR or 2nd then CLR while in changing mode, the
start condition will be set to default (“btn”).
• The first displayed value after “btn” will be the current time/date.
AutoLOG End Condition
• Select the “End” item. The displayed AutoLOG end condition will be the
previous set one. One of the following options will be available: “dur”
(duration), “SAMP” (samples number), “rdG” (reading limits).
• Pressing MODE while in view mode, the instrument will display one of the
options: “dur”, “SAMP”, “rdG” & “pH”, “rdG” & “mV”, “rdG” & “Rel mV”.
• Pressing CAL, the instrument will enter in changing mode in according
with the selected option and will display one of the following messages:
• “dur” on the secondary LCD and duration (hh:mm) on the primary
LCD, along with “TIME” tag. The default value is 3 hours. The
duration can be set from 1 minute to 199 hours and 59 minutes.
Note: Pressing CLR or 2nd then CLR while in changing mode, the
end condition value will be set to default (3 hours).
• “SAMP” on the secondary LCD and sample number on the primary
LCD. The default value is 1000 samples.
Note: Pressing CLR or 2nd then CLR while in changing mode, the
end condition value will be set to default (1000 samples).
• “rdG” on the secondary LCD and last set limit value on the primary
LCD, with the corresponding range tag blinking. The default value
is 7.00 pH or 0.0 mV, in according with the selected range.
Notes: • Pressing MODE while in view mode, another resolution
is selected.
• Pressing CLR or 2nd then CLR while in changing mode, the
end condition will be set to default (7.00 pH or 0.0 mV).