Sper scientific 850050 Manual
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Sper scientific 850050 Manual

Large display ph pens
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Large Display
pH Pens
850050, 850051, 850052

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Summary of Contents for Sper scientific 850050

  • Page 1 Large Display pH Pens 850050, 850051, 850052...
  • Page 2 Large Display pH Pens - 850050, 850051, 850052 Copyright ©2015 by Sper Scientific ALL RIGHTS RESERVED. Printed in the USA The contents of this manual may not be reproduced or transmitted in any form or by any means electronic, mechanical, or other means that do not yet exist or may...

  • Page 3: Table Of Contents

    9. WARRANTY ....12 INTRODUCTION These are simple and easy to use waterproof pH Pens. 850050 measures 2~14 pH. 850051 & 850052 features Hold and Automatic Temperature Control (ATC), and measures from 0~14 pH.

  • Page 4: Front Panel Description

    FRONT PANEL DESCRIPTION 850050 850051 & 850052 pH Value Symbol when Battery is Temperature Hold Calibration On/Off First Use: If the unit fails to turn on, check that the batteries are working and properly installed.

  • Page 5: Calibration Instructions

    OPERATING INSTRUCTIONS 1. Calibrate routinely before use, anytime the readings seem erratic, and whenever the batteries are replaced. 2. Remove the protective cap. 3. Clean the electrode with de-ionized/distilled water. Note: Crystals may form in the cap and these can be soaked or rinsed away. Do not touch or rub the glass bulb.

  • Page 6: Measurement Procedure

    9. “SA” (save) is displayed as the calibration point is saved. 10. “En” (end) (850050, 850051), or “End” (850052) displays when the calibration ends. 11. For 2 or 3 point calibration, start with pH 7, then repeat the above steps for pH 4 and/or pH 10.
  • Page 7 4. Dip/stir the electrode into the sample. 5. The pH value is displayed. 6. “- - -” is displayed when the pH sample is out of range. 7. During measurement, press ▲ to freeze the reading on the LCD. “Hold” is displayed. Press ▲ again to return to normal measurement.
  • Page 8 MEASUREMENT PROCEDURE 850051 & 52 1. Calibrate routinely before use. 2. Remove the protective cap and clean the electrode with de-ionized/distilled water. Do not touch the glass bulb. 3. Press >1 sec to turn on the unit. 4. Dip/stir the electrode into the sample. 5.

  • Page 9: Battery Replacement

    13. The pH Pen automatically shuts off after 20 minutes of inactivity. To disable this feature, start with the unit off, then simultaneously press the and ▲ buttons. Release both buttons when “n” is displayed. The unit returns to measurement mode. 14.

  • Page 10: Troubleshooting

    TROUBLESHOOTING 1. If there is no display, or you have erratic readings after having soaked the electrode in KCL (potassium chloride) solution for at least 1 hour prior to calibration, check the continuity of the batteries by removing them for 1 minute, then reinsert.

  • Page 11: Specifications

    SPECIFICATIONS Model 850050 850051 850052 Range 2 ~ 12 pH 0 ~ 14 pH 0 ~ 14 pH 0.1 pH 0.1 pH 0.01 pH 0.5°F/°C 0.1°F/°C Accuracy ±0.3 pH ±0.2 pH ±0.05 pH Adjustable pH 4 3.5 ~ 4.5 Calibration pH 7 6.5 ~ 7.5...

  • Page 12: Warranty

    1 year from the date of purchase, and agrees to repair or replace any defective unit without charge. If your model has since been discontinued, an equivalent Sper Scientific product will be substituted if available. This warranty does not cover probes, batteries, or damage resulting from accident, misuse, or abuse.

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850051850052

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