About Sample Measurements; Use A Sample Id; Standard Operation - Hach HQd Serie Manual Básico Del Usuario

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Figure 8 Probe connection
1 Probe connection port
2 USB/DC adapter port
(HQ40d only)

Standard operation

About calibration
Each probe uses a different type of calibration solution. Make sure to
calibrate the probes frequently to maintain the highest level of accuracy.
Note: For step-by-step instructions, refer to the documents that are included with
each probe.
The calibration icon
can indicate that:
• the calibration timer has expired
• the LDO sensor cap should be replaced
• the calibration is out of range
• the calibration results are outside acceptance criteria settings

About sample measurements

Each probe has specific preparation steps and procedures for taking
sample measurements. For step-by-step instructions, refer to the
documents that are included with the probe.
About check standards
Run Check Standards verifies equipment accuracy by measuring a
solution of a known value. The meter will indicate if the Check Standard
passed or failed. If the Check Standard fails, the calibration icon
shown until the probe is calibrated.
The meter can be set to automatically show a reminder for check
standard measurement at a specified interval with a specified
acceptance criteria. The reminder, value of the check standard, and
acceptance criteria can be changed. For step-by-step instructions, refer
to the documents that are included with the probe.

Use a sample ID

The sample ID tag is used to associate measurements with a particular
sample location. If assigned, stored data will include the sample ID.
3 Probe connection port
1. Push the
2. Select, create or delete a sample ID:
key.
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 Sample
Enter a name for a new sample ID.
ID
Delete Sample ID
Delete an existing sample ID.
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