Temperature Measurements; Mv Measurements; Measurements In The Mv Autolock Mode; Measurements In The Mv Non-Autolock Mode - YSI EcoSense pH1000A User Manual

2. Rinse the pH and temperature (if applicable) sensors with distilled
water and immerse in the sample to be measured. Remove any air
bubbles trapped around the electrode by shaking or stirring the
electrode.
3. Allow sufficient time for the display to stabilize. The unit will not
lock the measurement on the display, so it is up to the user to
determine when the measurement is stable.

TEMPERATURE MEASUREMENTS

The pH1000A can measure temperature independently with the 1102
pH/ATC probe or the 1103 temperature probe. Place the sensor in the
sample and the unit will display the measured temperature.

mV MEASUREMENTS

ORP measurements can be made with the YSI 115-1 (item # 605376)
electrode, but any ORP electrode with a BNC connection can be used.

MEASUREMENTS IN THE mV AUTOLOCK MODE

1. Press the Mode key until the "mV" icon and "AUTO" icon light up.
2. Rinse the electrode with distilled water and immerse in the sample.
3. Press the Meas. / Effic. key. The "WAIT" icon will start flashing. The
unit is waiting for a stable measurement.
4. When the "WAIT" icon disappears and the "LOCK" icon appears,
the reading is frozen and will not respond to further changes.
• For samples that are inherently unstable, the unit will not
AUTOLOCK. In this case, use the mV NON- AUTOLOCK mode
for measurements.

MEASUREMENTS IN THE mV NON-AUTOLOCK MODE

1. Press the Mode key until the "mV" icon lights up. The "AUTO" icon
will not be on the display when in the NON-AUTOLOCK mode.
2. Rinse the electrode with distilled water and immerse in the sample
to be measured.
3. Allow sufficient time for the display to stabilize. The unit will not
lock the measurement on the display, so it is up to the user to
determine when the measurement is stable.
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