Endpoint Formats - Mettler Toledo SevenCompact S210 Instrucciones De Manejo

Stability Criterion
The Stability icon appears according to the following stability criteria:
- Stability criteria for pH and mV measurement
Strict
The measured signal should not change by more than 0.03 mV in 8 seconds or by more than 0.1
mV in 30 seconds.
Medium
The measured signal should not change by more than 0.1 mV in 6 seconds.
Fast
The measured signal should not change by more than 0.6 mV in 4 seconds.
Rel. mV Offset
In the rel. mV mode the offset value is subtracted from the measured value. Either an offset value can
be entered or it can be determine by measuring the mV of a reference sample.
Offset value
● Enter an offset value in mV between -1999.9 and +1999.9 mV.
Test a reference sample
1 Place electrode into the reference sample.
2 Press Start to begin the reference measurement and wait until the measurement display freezes.
— or —
3 Press READ to manually end the measurement.
4 Press Save to enter the measured mV value as offset into the meter.
6.5 Endpoint formats
Auto
With the automatic endpoint the selected stability criterion determines the end of an individual reading
depending on the behavior of the sensor used. This ensures an easy, quick and precise measurement.
1 Place sensor in the sample.
2 Press READ.
A appears on the display.
The measurement ends automatically when the measured value is stable.
If READ is pressed before the signal is stable, the endpoint format changes to manual
Manual
Unlike Auto, user interaction is required to stop the measurement reading in manual mode.
1 Place sensor in the sample.
2 Press READ.
M appears on the display.
appears on the display to signalize measurement stability.
3 Press READ to end the measurement.
Timed
The measurement stops after the set time, which can be set between 5 s and 3600 s.
appears.
appears.
.
Menus and settings 29