Sper-scientific 850039 Conductivity TDS Meter - Datalogging Manual de usuario descargar pdf (Pagina 5)

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3. MEASUREMENT PROCEDURES: See page 4 for button locations.

Factory Preset Meter Defaults: Conductivity (uS, mS), °C, Temperature Com-

pensation (ATC) Factor of 2% per °C, Auto Range, Auto Power Off, and 2-

Second Data Logger Sampling Time. To change default settings, see

"ADVANCED ADJUSTMENT PROCEDURES" on page 6.

3-A. General Measurement

 Insert the PROBE PLUG (17) into the PROBE INPUT (12) and turn the

meter on pressing the POWER (2) button.

 Hold the PROBE HANDLE (19) and immerse the SENSOR HEAD (18)

into the solution sample to be measured. Gently shake the probe to re-

lease any air bubbles.

 The sample's conductivity mS (uS) and the temperature are displayed.

 See item 4-F, page 8 for instructions on changing between °C and °F.

 See item 4-G, page 8 for instructions on changing the Automatic Tempera-

ture Compensation (ATC) Factor.

 The instructions for measuring TDS are the same as the instructions for

measuring Conductivity. See item 4-H, page 8 for instructions on chang-

ing between Conductivity (uS, mS) and TDS (PPM) measurement.

 To display the time (h-m-s) or date (y-m-d) during use, press the CLOCK

(7) button.

 Press the POWER (2) button to turn the unit off.

3-B. Auto and Manual Range Modes

 "Auto Range" or "Manual Range" is displayed under

the measurement.

 To switch to Manual Range, press and hold the

RANGE (6) button for at least 2 seconds. When the

meter beeps, release the RANGE (6) button.

 Press the RANGE (6) button again to switch between the available ranges:

200uS, 2MS 20 mS and 200 mS.

 If the out-of-range indicator "- - - - -" appears at the bottom of the display,

select a lower range, and if it appears at the top of the display, select a

higher range.

 To switch to Auto Range, press and hold the RANGE (6) button for at least

2 seconds. When the meter beeps, release the RANGE (6) button.

3-C. Data Hold

 While measuring, press the HOLD (3) button to freeze the displayed value.

 "HOLD" and the measurement are displayed.

 Press the HOLD (3) button again to exit

1.46

20.00 mS

Auto Range

66.5°



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Sper-scientific 850039 Conductivity TDS Meter - Datalogging Manual de usuario Pagina 5

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