Ultrapen PT2 pH Tester Measurement: MyronLMeters.com

Posted by 3 Apr, 2014

Capture

Measuring pH and Temperature with the Ultrapen PT2

NOTE: Selecting “ESC” from any menu immediately powers the unit off without saving changes.

I. Temperature Unit Selection

The PT2 allows you to select the type of units used for displaying temperature:
˚C (Degrees Celsius) or ˚F (Degrees Fahrenheit).

To set the preference:
1. Push and release the push button to turn the unit on.
2. Push and hold the button. The display will alternate between “CAL”, “FAC CAL”, “ºCºF TEMP”, “ModE SEL” and “ESC”.
3. Release the button while “ºCºF TEMP” is displayed. The display will alternate between “PUSHnHLD” and “ºCºF TEMP”.
4. Push and hold the button. The display will alternate between “˚C”, “˚F” and
“ESC”. Release the button when desired unit preference displays.
5. “SAVEd ºC” or “SAVEd ºF” will display; then the unit will power off.

II. pH Mode Selection

The PT2 allows you to select the pH measurement mode you prefer:
Hold (once stabilized, the readings are captured then displayed) or
LIVE (real-time readings are displayed continuously during measurement)
To set the pH measurement mode preference:
1. Push and release the push button to turn the unit on.
2. Push and hold the button. The display will alternate between “CAL”, “FAC CAL”, “ºCºF TEMP”, “Mode SEL” and “ESC”.
3. Release the button when “ModE SEL” is displayed. The display will alternate between “PUSHnHLD” and “Mode SEL”.
4. Push and hold the push button. The display will alternate between “Hold”, “LIVE” and “ESC”.
5. Release the button when desired mode displays.
6. “SAVED” will display, then the unit will power off.

III. pH Measurement

The following table explains what the LED Indicator Light signals indicate and gives the duration of each signal:

LED Signal Action Duration
Rapid Flashing Dip pen in solution. 6 sec
Slow Flashing Measurement in process.
In LIVE mode, the readings are displayed. In LIVE mode, note measurement values. 10-30 sec in Hold mode 60 sec in LIVE mode
Solid Light (Hold mode only) Measurement is complete.
In Hold mode, captured readings are displayed. In Hold mode, note measurement values. 6 sec

CAUTION: To measure solution at the extremes of the specified temperature or pH range, allow the pen to equilibrate by submerging the sensor in the sample solution for 1 minute prior to taking a measurement.

NOTE: If you cannot dip the pen in the sample solution, pour the sample into a clean container. If you don’t have a container or need to test a vertical stream of solution, use the scoop to hold sample solution.

1. Rinse the pen. If measuring from a container, submerge the pen and swirl it around in FRESH sample solution 3 times. Alternatively, 30 seconds under a stream or of swirling in a body of water is sufficient to prepare the sensor for measurement.
2. Remove pen from solution. (Fill the container one more time with FRESH
sample solution, if applicable.) Then push and release the push button.
3. Grasp the pen by its case with your fingers positioned between the display and
the battery cap to avoid sample contamination.
4. While the LED flashes rapidly, dip the pen in FRESH sample solution so that the sensor is completely submerged. If you do not submerge the sensor in solution before the fl slows, allow the pen to power off and retake the reading.
5. While the LED flashes slowly, swirl the pen around to remove bubbles, keeping
the sensor submerged.
a. In Hold mode when the LED turns on solid, remove the pen from solution.

The display will alternate between the final pH and temperature readings.
Note the readings for your records.
b. In LIVE mode allow the pen to remain in solution while the LED flashes slowly. The display will alternate between live pH and temperature readings. Note the readings for your records. LIVE measurement will time out after 1 minute OR push and release the push button to power the pen off at any time during LIVE measurement.

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