Ultrapen PT1 Conductivity, TDS and Salinity Pen Measurement: MyronLMeters.com

Posted by 3 Apr, 2014

I. solution selection

The PT1 allows you to select from several preprogrammed measurement modes. The following table lists measurement modes with their corresponding parameters; temperature compensation and TDS conversion solution models; and units of measure.

Mode Parameter solution Model units
Cond KCl Conductivity potassium chloride microsiemens (µS)
tds 442 Total Dissolved Solids (TDS) 442™ Myron L NaturalWater Standard parts per million (ppm)
tds NaCl TDS sodium chloride ppm
salt 442 Salinity 442™ Myron L NaturalWater Standard parts per thousand (ppt)
salt NaCl Salinity sodium chloride ppt

 

esc This is the escape function. Selecting escape exits solution selection without saving changes and turns the PT1 off.

 

To select a measurement mode:
1. Press and release the push button. The LCD will briefly display the firmware version then the current measurement mode. If the measurement parameter and solution type displayed are correct, proceed to Temperature Unit Selection.

If not, proceed to step 2.

2. Immediately push and hold the push button. The display will scroll through “CAL”, “SOL SEL”, “FAC CAL”, “ºCºF TEMP”, and “ESC”. Release the button when “SOL SEL” displays.

3. While the display scrolls through “PUSHnHLD” and “SOL SEL”, push and hold the push button. The display will scroll through “Cond KCl”, “tdS 442”, “tdS NaCl”, “SALt 442”, “SALt NaCl” and “ESC”. Release when the desired measurement mode displays.

4. “SAVED” displays indicating the measurement mode is saved in memory. Allow the pen to time out to turn power off.

II. Temperature Unit Selection

The PT1 allows you to select the type of units used for temperature measurements. The following table lists preference options with their corresponding units.

Mode Unit Preference

C Degrees Celsius

F Degrees Fahrenheit

esc This is the escape function. Selecting escape exits temperature unit selection without saving changes and turns the PT1 off.

To set the preference:
1. Press and release the push button. The LCD will briefly display the firmware version then the current measurement mode.
2. Immediately push and hold the push button. The display will scroll through “CAL”, “SOL SEL”, “FAC CAL”, “ºCºF TEMP”, and “ESC”. Release the button when “ºCºF TEMP” displays.
3. While the display scrolls through “PUSHnHLD” and “ºCºF TEMP”, push and hold the push button. The display will scroll through “C”, “F” and “ESC”. Release when the desired unit option displays.
4. “SAVED” displays indicating the unit preference is saved in memory.
Allow the pen to time out to turn power off.

III. Normal Operation

Before you take a reading, make sure the pen is clean, calibrated and in the appropriate measurement mode. The sample solution must also be within the specified measurement range. Keep all foreign material away from the sample to avoid contamination.

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

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

LED Indicator Light Signal Meaning duration

Rapid Flashing Dip pen in solution 6 sec

Slow Flashing Measurement in process 10-20 sec

Solid Light Note measurement value 6 sec

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

1. Rinse the pen 3 times by submerging the cell in fresh sample solution and swirling it around.

2. Remove pen from solution, then press and release the push button. Firmware version will be displayed, then current measurement mode.

3. Grasp the pen by its case with your fingers positioned between the display and the pen cap to avoid sample contamination.

4. While the LED flashes rapidly, dip the pen in fresh sample solution so that the cell is completely submerged. If you do not submerge the cell in solution before the flashing 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 cell submerged. Keep the pen at least 1 inch (2½ cm) away from sides/bottom of container, if applicable.

6. When the LED turns on solid, remove the pen from solution. The display will alternate between the measurement and temperature readings. Note the readings for your records.

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