Thermo Fisher Scientific Eutech pH 5/6 Plus & Ion 6 Plus (Old version EP6, SN <797406, discontinued) - Manual (Page 7)

Instruction Manual pH 5+, pH 6+, Ion 6+
-5-
2.4 Inserting New Batteries
The battery compartment is found at the back of instrument. To open the battery
compartment, push in the direction of arrow and lift up the cover. Note the polarity of
battery before inserting into position. After replacement, place cover back and press
down until it locks.
2.5 Battery Replacement
The “LO” annunciator of the LCD alerts you when battery power is running low.
Caution: Power off the meter before changing battery.
2.6 Connecting the Electrode and Temperature Sensor
To connect the electrode into meter, align the BNC connector slots with the posts of
meter’s socket and rotate connector clockwise until it locks. Do not force when
connecting. To remove, simply rotate the connector in counter-clockwise direction until it
unlocks, and slide the connector off the socket.