SATO KEIRYOKI 6428-00, Instruction Manual

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9
(2) Press the HOLD/
△
key
once again to disable this function. The ‘HLD’ indication will blink
and the value will not be held any more.
<Stability Displaying function>
This unit allows the ‘pH’ indication from blinking to light up to indicate that the values are stable
when following conditions are met:
Conditions for Stability Display
Model Conditions
SK-660PH
Change in 10 seconds : ±0.1pH or ±0.5°C
SK-661PH
SK-662PH Change in 10 seconds : ±0.05pH or ±0.5°C
Note: This function cannot be disabled. Measure values may be unstable with samples such as
pure water, however this is not malfunction of the instrument.
Individual settings
Following setting are available in measurement mode:
Model Conditions
Sensitivity of pH sensor is displayed.
* In between pH4 and pH7
Sensitivity of pH sensor is displayed.
* In between pH7 and pH9 or pH10
Asymmetric potential difference (mV) is displayed
Switching temperature unit (°C or °F)
Reset
⚫
How to operate setting mode
(1) With the unit off, press the SET/ key for 2 seconds to turn the power on and the unit will
switch to the setting mode.
(2) Press the CAL/ /
▽
and the display will switch the modes in following steps below:
SL1 → SL2 → OFF → unit →rSt → Setting mode
<Sensitivity Displaying Function SL1 / SL2 / OFF>
The instrument displays the sensitivity of the sensor and asymmetric potential difference based
on the data of the calibration time. These thresholds may be used as a reference for setting the
sensor maintenance and replacement time.