Hach HQ440d Basic User Manual page 12

Use an operator ID
The operator ID tag associates measurements with an individual
operator. All stored data will include the operator ID.
1. Push the key.
2. Select, create or delete an operator ID:
Option Description
Current ID Select an ID from a list. The current ID will be
associated with sample data until a different ID is
selected.
Create a New Enter a name for a new operator ID (maximum
Operator ID 10 names can be entered).
Delete Operator ID Delete an existing operator ID.
Data management
About stored data
The following types of data are stored in the data log:
• Sample measurements: stored automatically each time a sample is
measured in the Press to Read or Interval Mode. When the
continuous measurement mode is used, data is stored only when
Store is selected.
• Calibrations: stored only when Store is selected at the end of a
calibration. Calibration data is also stored in the IntelliCAL (R) probe.
• Check standard measurements: stored automatically each time a
check standard is measured (in the Press to Read or Interval Mode).
When the data log becomes full (500 data points), the oldest data point
is deleted when a new data point is added. The entire data log can be
deleted to remove data that has already been sent to a printer or PC
( key > Delete Data Log). To prevent deletion of the data log by a
user, use the Security Options menu.
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View stored data
The data log contains sample, calibration and check standard data. The
most recent data point in the data log is tagged as Data Point 001.
1. Push the key.
2. Select View Data Log to view the stored data. The most recent data
point is shown. The top of the screen shows whether the data is from
a sample reading, a calibration or a check standard. Push the
key to view the next most recent data point.
Option Description
Reading Log Reading Log—shows sample measurements including
the time, date, operator and sample ID. Select Details to
view the associated calibration data.
Calibration Log Calibration Log—shows calibration data. Select Details
to view additional information about the calibration.
Check Standard Check Standard Log—shows check standard
Log measurements. Select Details to view the calibration
data that was associated with the measurement.
View stored probe data
Make sure that a probe is connected to the meter. If two probes are
connected, select the appropriate probe when prompted.
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