Calibration Settings; Calibration Procedure - Hach sensION + pH31 Manual Del Usuario

Standard operations
Calibration
W A R N I N G
Chemical exposure hazard. Obey laboratory safety procedures and wear all of the
the personal protective equipment appropriate to the chemicals that are handled.
Refer to the current material safety data sheets (MSDS) for safety protocols.

Calibration settings

The calibration settings contain Calibration type, Calibration frequency
and Display options.
1. From the main menu use the
2. Use the to enter the calibration menu.
3. Use the or to select the following options:
Option Description
Stability C.: Criterion by stability—select Fast, Standard or Strict.
Calibration type Calibration type—select Technical buffers, DIN19266
Buffers, User Buffers, To a X value, data introduction or
Theoretical calibration. Refer to
information.
Cal. frequency Calibration reminder—can be set between 0–7 days
(default daily). The display shows the remaining time to
the new calibration. Refer to
reminder on page 9 for more information.
Display mV Display mV—select YES or NO to show mV.
Standard 220 mV Standard 220 mV—calibrate with a 220 mV standard
solution
To a X value To a X value—use a specific standard solution. Adjust the
value during the calibration.
Data introduction Data introduction Compensation—enter the
compensation value
Factory adjust Factory adjust—enter the compensation value
8 English
or to select CALIBRATION. Confirm.
Calibration types for more
Set the calibration
Calibration types
Different calibration types can be selected.
1. From the main menu use the
2. Use the to enter the calibration menu.
3. Use the or to select Calibration type.
Option Description
Technical buffers pH 2.00, 4.01, 7.00, 9.21 and 10.90 at 25 °C (77 °F)
DIN19266 Buffers pH 1.679, 4.006, 6.865, 7.000, 9.180, 10.012 and
12.454
User Buffers Selected when the technical or DIN19266 buffers are
not used. Refer to
19267)
sets at varying temperatures.
Calibration to a X To adjust manually any scale value of the measured
value pH.
Data introduction Manual probe constant introduction.
Theoretical The probe calibration data is replaced at 25 °C (77 °F).
calibration

Calibration procedure

This procedure is for general use with liquid calibration solutions. Refer to
the documents that are included with each probe for additional information.
Note: Solutions should be stirred during calibration. For more information about the
stirring settings, refer to Change the stirring settings
1. Pour the buffers or calibration solutions into the labeled calibration
beakers.
2. From the main menu use the
CALIBRATION parameter. Confirm.
3. If required select the Operator ID (1 to 10) and confirm.
4. Rinse the probe with deionized water and put the probe into the first
calibration beaker. Be sure that there are no air bubbles in the
membrane.
or to select CALIBRATION. Confirm.
Technical buffer solutions (DIN
on page 16 for pH values of specific buffer
on page 11.
or and and to select the