User Guide

Instruction Manual pH 510/ Ion 510

5.3 P3.0 Selecting pH Buffer Standard

5.4 P4.0 Meter Reset

This program lets you select between two standard calibration buffer sets,

depending upon your requirements.

The available standards are USA and NIST.

1. Enter the SETUP mode as described in this section earlier. The

meter automatically goes to program P1.0.

2. Press ¿ or À key to scroll through the programs until you view “bUF”

in the upper display and P3.0 in the lower display. The buffer

annunciator also appears.

3. Press ENTER key to access the program P3.0. The lower display will

read either ”USA” or “nSt” (depending on the previous setting you

have made; factory default is USA.)

4. Press ¿ or À key to select the buffer set you require:

• USA buffers: 4.01, 7.00 and 10.01

• nSt buffers: 4.01, 6.86 and 9.18

5. To confirm the buffer standard, press ENTER. All the characters on

the display will flash momentarily and then returns to P3.0.

6. To exit P3.0 program press ¿ or À key to select a new program OR

press the CAL/MEAS to return to the measurement mode.

This program resets and clears all memory data and calibration data

except temperature calibrated value which will be retained. NO is the

default setting.

1. Enter the SETUP mode as described in this section earlier on. The

meter automatically goes to program P1.0.

2. Press ¿ or À key to scroll through the programs until you view rSt in

the upper display and P4.0 in the lower display. The mV and pH

annunciators also appears.

3. Press the ENTER key to access the program P4.0. The lower

display will read NO.

4. Press ¿ or À key to select “NO” or “YES”. Select YES erases all

calibration values for all modes (pH, mV and ion) and all memory

values.

5. To confirm the reset, make sure YES is selected and press ENTER.

All the characters on the display will flash for a second then the

meter returns to the measurement mode.

NOTE

Once YES is selected and ENTER key is pressed; the reset program

clears all old calibration data and memory data. The data is no longer

retrievable. You must calibrate the meter before taking any new

measurements. Meter will however retain buffer set selection (NIST or

USA).