Change Check Standard Options; Maintenance; Clean The Probe - Hach Intellical MTC30101 User Manual

Change check standard options

Maintenance

Clean the probe

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6. If prompted, enter a name for the new method settings. Additional changes made to
the settings of an existing method are automatically saved with the same method
name.
7. Push EXIT until the meter returns to the measurement mode.
1. Make sure a probe is connected to the meter.
2. Push and select MTC301 Settings.
3. Select Modify Current Settings.
4. Select Check Standards Options and update the settings:
Option Description
Standard Sets the check standard—
• ZoBell's (221 mV – 25 °C) (default)
• Light's (135 mV – 25 °C)
• Custom
Temperature compensated for ZoBell's solution.
Standard value for check standard.
Standard value is shown on Check Standard Options screen.
Lights solution is characterized at 25 °C.
Custom standard values and temperature are user-defined.
Standard When Standard is set to Custom, enter the standard value using the up/down
Value arrow keys— -1200.0 to 1200.0 mV (default: 221.0 mV).
The value and temperature for custom check standard are user-defined.
5. Select Check Standard Reminder and update the settings:
Option Description
Reminder Repeat Sets the time interval for the check standard reminder—Off (default), 1 d,
7 d or 30 d.
Allow Defer Allows the postponement of check standard reminders—Yes (default) or
No.
6. Select Acceptance Criteria and update the settings:
Option
Acceptance Limits
Cal Expires on Failure Recalibration required if check standard fails—Yes or No (default).
7. If prompted, enter a name for the new method settings. Additional changes made to
the settings of an existing method are automatically saved with the same method
name.
8. Push EXIT until the meter returns to the measurement mode.
Clean the probe when:
• Drifting/inaccurate readings or slow stabilization time occurs as a result of
contamination on the platinum disc or the probe being left dry for extended periods of
time.
• Measurement values are outside the calibration/measurement range of the probe
even after a calibration is done using freshly prepared standards.
Description
Sets the tolerance limits for check standard—-±1 mV to 25 mV
(default: ±10 mV).