User Guide

Instruction Manual pH 510/ Ion 510

All new calibrations will override existing stored calibration data at these calibration points. It is recommended

that you perform at least a 2-point calibration using buffers that bracket (one above and one below) the

expected sample range, starting with pH 7 buffer first. You can perform a 1-point calibration, but make sure that

the buffer value is close to the sample value you are measuring. Select a pH 4, 7 or 10 buffer in sachets or

bottles from standard buffer solutions.

1. Press ON/OFF key. All the LCD segments will be displayed

momentarily. The LCD switches to pH measurement mode. If

necessary press MODE key to select pH mode.

NOTE: The meter starts in the same measurement mode that it

was switched off.

2. The customized LCD display will indicate the following:

Display Remarks

MEAS Measurement mode is selected

pH Unit of measurement

C Measured temperature reading

ATC Automatic Temperature Compensation

(If temperature probe or “All-in-One” probe is

connected)”

3. Rinse the pH electrode well with deionized water or rinse solution.

If using the ATC function with a separate temperature probe,

thoroughly rinse the temperature probe as well. (Do not wipe the

electrode or the temperature probe as this may cause a build-

up of electrostatic charge and will create calibration and

measurement instability!).

One Point Calibration

4. Select the first pH buffer, say pH 7.00 buffer and pour some into a

clean container.

5. Dip both probes into the standard calibration buffer. The end of

the probe must be completely immersed into the buffer. Stir the

probes gently to create a homogenous solution.

6. Press CAL/MEAS key to enter the pH calibration mode. The

annunciator [CAL] appears on top of the LCD to indicate the

meter is in pH calibration mode. The upper display will show the

measured reading while the lower display indicates appropriate

pH standard buffer solution being used.

NOTE: The meter automatically recognizes the buffers in the

buffer standard you have set in the SETUP mode, i.e. either USA

(pH 4.01, 7.00 or 10.01) or NIST (pH 4.01, 6.86 or 9.18) buffers.

Figure 1: 1st-point calibration