3 sachets of pH7.0 Calibration Buffer solution powder, each makes 250mL.

 

pH7.0 BUFFER CALIBRATION INSTRUCTIONS

1. 1. Prepare the pH BOSS for Calibration

• Ensure that the pool pump is switched off and unplugged during the entire calibration procedure.
• Connect the pH BOSS to a power outlet socket, but do not switch on yet.

 

2. Prepare pH7.0 Calibration Buffer

• Empty the entire contents of salt crystals inside the pH 7.0 sachet into the calibration jar

• Fill the Buffer Jar to the 250ml mark with distilled water. Filtered tap water can also be used. Replace both the seal and the lid, then shake well for 1 minute to ensure that the salts are well for 1 minute to ensure that the salts are fully dissolved.

 

3. Remove the pH Probe from the Tee

• Unplug the pH Probe from the pH BOSS first. (This will avoid the cable getting twisted when the pH Probe is unscrewed.)
• Unscrew the probe completely from the Tee.
• Reconnect the pH Probe to the pH BOSS.
• Rinse the probe well in clean water. De-ionized or distilled water is ideal, but tap water will suffice

 

4. Place pH Probe into pH7.0 Buffer

• Place the pH Probe into pH7.0 Buffer, immersing to a depth of at least 25mm, to the threaded section of the main body.

 

5. Calibration Procedure

• Switch the pH BOSS power on.
• Press the PROGRAM / SET button twice to bypass the start-up screen delay.
• Press the PROGRAM / SET button until the pH Calibration screen is displayed, as per the example below. The “Current” reading may be 7.0 or another value, depending on the condition of the pH Probe and current calibration setting.

• Adjust the “Cal pH” value to exactly 7.0. The flashing “X”, indicates that the reading is not yet stable. DO NOT calibrate until the “X” changes to a “✓”.

• When the reading is stable and the “✓” is displayed, press PROGRAM / SET to calibrate.

 

6. Re-fit pH Probe and Power Connections

• Disconnect the pH Probe from pH BOSS (to prevent twisting the cable) and re-fit into the Tee. Re-connect the pH Probe to pH BOSS when done.
• Re-connect the pH BOSS and pool pump to the sanitiser controller’s pool pump outlet.
• Switch your pool equipment back on.