Set The Calibration Reminder; Sample Measurements; Advanced Operation; Change The Measurement Units - Hach sensION+ MM378 Manual Do Usuário

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Set the calibration reminder

pH: The calibration reminder can be set between 0 to 23 hours or
1-7 days (default 1 day). EC: The calibration reminder can be set
between 0 to 99 days (default 15 days). The display shows the
remaining time to the new calibration.
Note: When 0 days is selected, the calibration reminder is turned off.
1. From the main menu use the
Confirm.
2. Use the
to enter the calibration menu.
3. Use the
or
to select Cal. frequency and confirm.
4. Use the and to advance to the next step and use the
change a value. Confirm.
Push
to start the calibration.

Sample measurements

Each probe has specific preparation steps and procedures for taking
sample measurements.
1. From the main menu use the
MEASURE. Confirm.
2. Use the
to change the following settings. Confirm every entry.
Option
Description
Resolution
Select the resolution: 1, 0.1, 0.01 (default) or 0.001
Measure
Stability—select By stability Criterion: Fast (variation <
0.02 pH in 6 s), Standard (variation < 0.01 pH in 6 s) or Strict
(variation < 0.002 pH in 6 s). In continuous—enter the time
interval for the In continuous Acquis. interval (data storage or
printing data). By time—enter the time interval for data storage
or printing data.
Display mV
Display mV—select YES or NO to show mV.
Limits
Limits—select YES or NO. YES: Enter the upper and lower
limits. An acoustic warning appears when the measurement is
out of limit. The report output shows an A next to the
measured value when the measurement was out of limit.
12 English
or
to select CALIBRATION.
or
or
and and to select
Option
Description
Isopotential Isopotential—change the Isopotential pH value in Data
introduction. Select Calculate to calibrate the probe again.
TC
TC—select Linear or Natural waters. Linear: enter a value in
%/°C (default 2.00%/Temperature). Natural waters: Non-linear
for natural waters, according to EN27888
Tref
Reference temperature—select between 20 or 25 °C or Other
temperature.
Pressure
Barometric pressure—select a pressure between 600 and
1133 mBar (450 mmHg and 850 mmHg). Preset to 1013 mBar
to
Sal.Corr.
Salinity correction—enter a correction factor between 00.0 and
45.0 g/L (preset to 1.0 g/L)
Display nA
Display nA—select YES or NO to show DO current in nA
(nanoampere)
Note: The salinity value can be calculated from the conductivity value. Refer to
Table 7
on page 23
3. Push
to start the measurement.
Note: If the measurement is not stabilizing after 120 seconds, the meter turns
automatically into the continuous measurement mode.

Advanced operation

Change the measurement units

The measurement units can be changed individually for each channel.
1. From the main menu use the
2. Use the
or
to select Measurement units and confirm.
3. Select Channel 1 and confirm.
or
to select SYSTEM. Confirm.

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