Hach HQ1110 User Manual

Option Description
Stability criteria When Auto-stabilization is set to No, sets the stabilization rate that
determines when measurements are stable. Options: 0.1 mV/minute to
9.9 mV/minute (default: 1.0 mV/minute). A lower value gives more time for
the measurements to become stable.
Maximum
stability
Sets the maximum time that the meter waits for a measurement to become
stable. Options: 30 to 1200 seconds (default: 600 seconds).
4. Select Calibration to change the settings for calibrations.
Option Description
Standard set Selects the standard solutions to use for calibration from a list of pre-set and
user-specified standard solution values. The set must have a minimum of two
and a maximum of five standards.
Form Sets the chemical form (applicable to ammonia, ammonium and nitrate
probes).
Options for ammonia probe: NH
3
or NH
3
—N.
Options for ammonium probe: NH
4
+
, NH
4
+
—N or NH
4
+
–NH
3
(ammonium as
ammonia).
Options for nitrate probe: NO
3
or NO
3
—N.
Units Sets the calibration units. Options: mg/L (default), µg/L, g/L, g/kg, mol/L,
mmol/L, mol/kg, %, ppm or ppb.
Add a standard Lets the user enter a user-specified standard solution value.
Delete
standards
Removes a user-specified standard solution from the list of available
standard solutions.
Slope limit Sets the accepted range of values (from theoretical) for the calibration slope.
Options: 1 to 30% (default: 15%).
Reminder Sets a time interval for probe calibration. A reminder shows on the meter
after the time interval. Options: Off (default), 2 hours, 4 hours, 8 hours,
2 days, 5 days or 7 days. The meter can also make a sound during the
reminder (Settings > Sound).
Expiration When Reminder is set to a time interval, changes the calibration status to
expired after the reminder occurs. Options: Immediately after reminder,
30 minutes after reminder (default), 1 hour after reminder, 2 hours after
reminder or Continue reading (calibration status does not change).
5. Select Verification to change the settings for calibration verifications.
Option Description
Standard Selects the standard solution to use for calibration verification from a list of
pre-set and user-specified standard solution values.
Form Sets the chemical form (applicable to ammonia, ammonium and nitrate
probes).
Options for ammonia probe: NH
3
or NH
3
—N.
Options for ammonium probe: NH
4
+
, NH
4
+
—N or NH
4
+
–NH
3
(ammonium
as ammonia).
Options for nitrate probe: NO
3
or NO
3
—N.
Units Sets the verification units. Options: mg/L, µg/L, g/L, g/kg, mol/L, mmol/L,
mol/kg, %, ppm, ppb.
Add a standard Lets the user enter a user-specified standard solution value.
28 English

Hach HQ1110 Specifications

General

Brand	Hach
Model	HQ1110
Category	Measuring Instruments
Language	English