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PHscan40
Overview
Thank you for selecting the PHscan series pocket pH tester. This user
manual provides a step-by-step guide to help you operate the tester,
please carefully read the following instructions before use.
Installing the Batteries
1. Twist the connector collar counter clockwise, pull the BNC
connector away from the tester.
2. Insert two AAA alkaline batteries into the battery compartment,
note polarity.
3. Push the BNC connector into the tester and twist the connector
collar clockwise until tight.
Keypad
Key
Function
•
Switch the tester on or off
•
Lock or unlock measurement
•
Exit the calibration, settings and return to the pH
measurement
•
Start calibration
•
Press and hold the key to enter the setup menu
•
Select an option
•
Confirm the calibration, settings or displayed option
Display
Icon
Description
When the battery voltage falls below the minimum
power requirements, the icon automatically
disappears
MEAS
Indicates that the tester is in the measurement mode
CAL
Indicates that the tester is in the calibration mode
SETUP
Indicates that the tester is in the setup mode
ATC
Indicates that the temperature compensation is enabled
Prior to Use
1. Take out the pH electrode from the carrying case. Insert the BNC
connector into the connector socket on tester, rotate and push
the connector clockwise until it locks.
2. Remove the protective cap from the bottom of the electrode. If
tiny air bubbles are present inside the pH-sensitive glass
membrane, gently shake the electrode downward to remove air
bubbles.
3. If the glass membrane has dried out, soak the electrode in 3M
KCl or pH 4.01 buffer solution for about 30 minutes.
Switching the Tester On and Off
•
Press and hold the
Meas
key for about 5 seconds to switch on
the tester.
•
Press and hold the
Meas
key to switch off the tester.
If you do not press any key within 8 minutes, the tester will switch off
automatically to conserve energy.
3M KCl solution
