AC Infinity AC-PHM3 User Manual
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AC Infinity AC-PHM3 User Manual

AC Infinity AC-PHM3 User Manual

Hydroponic tester
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pH METER PRO
HYDROPONIC TESTER
USER MANUAL

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Summary of Contents for AC Infinity AC-PHM3

  • Page 1 pH METER PRO HYDROPONIC TESTER USER MANUAL...
  • Page 3 WELCOME Thank you for choosing AC Infinity. We are committed to product quality and friendly customer service. If you have any questions or suggestions, please don’t hesitate to contact us. Visit www.acinfinity.com and click contact for our contact information. EMAIL LOCATION support@acinfinity.com...
  • Page 4 This testing device is equipped with a sensor shield that protects the glass bulb from accidental collisions (see image below). You may remove this shield to clean the sensor and put it back when you are finished. AC-PHM3 and AC-PHM5 AC-PHM7...

  • Page 5: Manual Index

    Page 13 Calibration Notes ................Page 17 pH Readings .................. Page 18 Conductivity* .................. Page 25 Maintenance .................. Page 33 Troubleshooting Guide ..............Page 37 ....................Page 38 Other AC Infinity Products ............. Page 39 Warranty ..................Page 40 *AC-PHM7 Only...

  • Page 6: Product Warning

    PRODUCT WARNING TO REDUCE THE RISK OF FIRE, ELECTRIC SHOCK, OR INJURY TO PERSONS, OBSERVE THE FOLLOWING: Read all instructions before using this product. Do not fully submerge this product underwater. Do not remove the screw cap holding the sensor to this product when in use. Do not operate this product while it is damaged, or if it malfunctions, has been dropped, or is damaged in any manner.

  • Page 7: Key Features

    KEY FEATURES PREMIUM DISPLAY EFFECTIVE CALIBRATION Backlit LCD screen with battery Provided calibration display and locking capabilities solutions assist in precise pH provides a sharp layout for measurements by regulating convenient observation. the meter in between uses. REPLACEABLE PROBES EXTENDED LIFESPAN Interchangeable probe allows Included 3M KCL solution for the quick and efficient...

  • Page 8: Product Contents

    PRODUCT CONTENTS AC-PHM5 pH 10.01 CALIBRATION pH 10.01 BUFFER SOLUTION CALIBRATION VIAL (x1) (x1) AC-PHM7 12.88 mS CONDUCTIVITY 1413 µS CONDUCTIVITY 12.88 mS 1413 µS CALIBRATION SOLUTION CALIBRATION SOLUTION CALIBRATION VIAL CALIBRATION VIAL (x1) (x1) (x1) (x1) AC-PHM5 & AC-PHM7 pH 4.00 CALIBRATION pH 7.00 CALIBRATION 3M KCL SOAKING...
  • Page 9 POWERING AND SETUP FIRST TIME USE STEP 1 Pull off the battery insulation paper and remove the probe cap. Your pH meter will come shipped with 3M KCL droplets in the probe cap. You may see this substance as white sediment, which can be rinsed off and will not affect its usability.
  • Page 10 POWERING AND SETUP BATTERY REPLACEMENT STEP 1 Remove the cap. STEP 2 Pull the battery tab open.
  • Page 11 POWERING AND SETUP BATTERY REPLACEMENT STEP 3 Insert the batteries as shown. The positive end (+) of each battery must face upwards. CAUTION: Incorrectly inserted batteries may damage your pH meter and cause potential hazards. STEP 4 Push the battery tab down and forward to lock it.
  • Page 12 PROGRAMMING 1. SMILE ICON 5. CALIBRATION BUTTON Indicates a stabilized Enters CALIBRATION reading when staying Mode, initiates the on the screen for 2 calibration, and seconds or longer. confirms changes. 2. CALIBRATION ICONS 6. MEASUREMENT MODE Displays the = pH 4.00 parameter indication.

  • Page 13: Other Settings

    OTHER SETTINGS GENERAL SETTINGS POWER ON PRESS + Press the power/settings button. POWER OFF HOLD + Hold the power/settings button. ACCESS SETTINGS HOLD + While off, hold the power/settings button to enter SETTINGS. BACKLIGHT ON PRESS + In MEASUREMENT, press the power/settings button. SWITCH PARAMETER PRESS + In MEASUREMENT, press the mode button.
  • Page 14 OTHER SETTINGS PARAMETER SETTINGS ENTER SETTINGS HOLD + Holding the power/settings button will enter settings while your pH meter is off. CYCLE THROUGH SETTINGS PRESS + Pressing the mode button switches between P1-P2-P3, etc. UNLOCK SETTINGS Pressing the calibration button will enable you to adjust your current setting PRESS + which will flash.
  • Page 15 OTHER SETTINGS PARAMETER SETTINGS — AC-PHM5 Category Settings Adjustment Settings Factory Settings Selects pH Buffer Series USA / NIST Low Alarm Setting 0 - 14.00 pH High Alarm Setting 0 - 14.00 pH 14.00 Automatic Hold OFF / ON Sets Backlight Level OFF / 1 / ON Selects Temperature Scale °F / °C...
  • Page 16 OTHER SETTINGS PARAMETER SETTINGS — AC-PHM7 Category Settings Adjustment Settings Factory Settings Selects pH Buffer Series USA / NIST Automatic Hold OFF / ON Sets Backlight Level OFF / 1 / ON Temperature Compensation Factor 0.00 - 4.00% 2.00% TDS Factor 0.40 - 1.00 0.71 Salinity Unit...

  • Page 17: Calibration Notes

    CALIBRATION NOTES The 1 point calibration must be 7.00 pH. Perform the 2 and 3 point calibrations (4.00, 10.01, 1.68, or 12.45) after the 1 point calibration is complete. DO NOT turn off your pH meter before your calibrate the 2 and 3 points.
  • Page 18 pH READINGS CALIBRATION STEP 1 Press the power/settings button to turn your pH meter on. PRESS Prepare the pH buffer solutions in their corresponding calibration vials to about half its volume. STEP 2 Rinse the probe in distilled water and shake off excess moisture.
  • Page 19 pH READINGS CALIBRATION STEP 3 Press and hold the calibration button to enter CALIBRATION mode. The screen will turn green to signify HOLD the calibration process has started. You may cancel the calibration and return to MEASUREMENT Mode by pressing the power/setting button. STEP 4 Rapidly stir the probe in the 7.00 pH buffer solution, then hold it still.
  • Page 20 pH READINGS CALIBRATION STEP 5 Wait for the smile icon to appear, then press the calibration button to finish the 1 point calibration. PRESS Once the calibration is confirmed, the next solution will be indicated at the bottom right of the screen. STEP 6 Your pH meter will return to MEASUREMENT mode once the calibration process is complete.
  • Page 21 pH READINGS CALIBRATION STEP 7 Repeat steps 2-5 to calibrate the 2 point, using the 4.00 pH buffer solution instead. "L" will display next to "M," indicating a successful 2 point calibration (low and middle points). STEP 8 Repeat steps 2-5 to calibrate the 3 point, using the 10.01 pH buffer solution instead.
  • Page 22 pH READINGS MEASUREMENT STEP 1 Press the power/settings button to power your pH meter on. PRESS STEP 2 Rinse the probe in distilled water and shake off excess moisture.
  • Page 23 pH READINGS MEASUREMENT STEP 3 — STANDARD Submerge the probe at least 1 in. deep into your sample solution, then hold it still. Record the readings after the reading is stabilized, indicated by the smile icon on the screen. 1 in. STEP 3 —...
  • Page 24 pH READINGS MEASUREMENT PURE WATER MEASUREMENT Readings will take longer to fully stabilize (~1-5 min.) when testing pure water like drinking water, 1 ml RO water, and distilled water. If your readings are not stabilizing, add a 1:1000 ratio of 3M KCL solution to your pure water (e.g. 1 ml KCL to 1000 ml water) to accelerate the stabilization while minimizing pH change.
  • Page 25 CONDUCTIVITY CALIBRATION — AC-PHM7 STEP 1 Prepare the conductivity buffer solutions in their corresponding calibration vials to about half its volume. PRESS Press the power/settings button to turn your PRESS pH meter on. Press the mode button to switch to conductivity (COND) measurement mode.
  • Page 26 CONDUCTIVITY CALIBRATION — AC-PHM7 STEP 3 Hold the calibration button to enter CALIBRATION mode. The screen will turn green to signify HOLD the calibration process has started. You may cancel the calibration and return to MEASUREMENT Mode by pressing the power/setting button. STEP 4 Rapidly stir the probe in the 1413 µS conductivity solution, then hold it still.
  • Page 27 CONDUCTIVITY CALIBRATION — AC-PHM7 STEP 5 Wait for the smile icon to appear, then press the calibration button to finish the 1 point calibration. PRESS STEP 6 Your pH meter will return to MEASUREMENT mode once the calibration process is complete. "M"...
  • Page 28 CONDUCTIVITY CALIBRATION — AC-PHM7 STEP 7 If your estimated sample conductivity level is greater than 2 mS or 2000 µS, you may optionally repeat steps 2-5 to calibrate the 2 point using the 12.88 mS conductivity solution instead. "H" will appear next to "M," indicating a successful point calibration (low and middle points).
  • Page 29 CONDUCTIVITY MEASUREMENT — AC-PHM7 STEP 1 Press the power/settings button to power your PRESS pH meter on. Rinse the probe in distilled water and shake off excess moisture. STEP 2 — STANDARD Submerge the probe into your sample solution, then hold it still. Record the readings after the reading is stabilized, indicated by the smile icon on the screen.
  • Page 30 CONDUCTIVITY MEASUREMENT — AC-PHM7 STEP 2 — AUTO-HOLD Submerge the probe into your sample solution, then hold it still. 10 SECONDS The reading will automatically lock when it's stable for more than 10 seconds while the AUTO-HOLD function is on. Refer to the "Parameter Settings" section for more information.
  • Page 31 CONDUCTIVITY MEASUREMENT — AC-PHM7 UNIT CONVERSION 1000 µS/cm = 1 mS/cm = 1 EC (In CONDUCTIVITY mode, the unit will automatically turn from µS to mS if the reading is greater than 1999 µS, meaning you will only see 2.XX mS instead of 2XXX µS).
  • Page 32 CONDUCTIVITY MEASUREMENT — AC-PHM7 TEMPERATURE COMPENSATION FACTOR The default setting of the temp. compensation factor is 2.0% / °C. You can adjust this factor based on test solution and experimental data in parameter setting P4. Refer to the "Parameter Settings" section for more information. The following table lists some common examples of setting up the temp.

  • Page 33: Maintenance

    MAINTENANCE PROBE CLEANING RINSING THE PROBE Thoroughly rinse off the probe with 8-16 oz. of distilled or deionized water before and after each test to ensure accurate readings. 8-16 oz. REMOVING TOUGH CONTAMINANTS Detach the sensor shield and soak the probe in a cleaning solution or detergent water for about 30 minutes.
  • Page 34 MAINTENANCE PROBE STORAGE REGULAR USAGE (DAILY OR WEEKLY) Make sure the probe cap stays moist by closing the probe when not in use. LONG-TERM STORAGE Add 3M KCL solution or pH 4.00 buffer solution up to one quarter of the probe cap. Close the probe cap tightly to store the probe in it.
  • Page 35 MAINTENANCE PROBE STORAGE PROPER STORAGE NEVER store the probe in pure water like tap, RO, distilled, or deionized water. Doing so may damage the probe. If stored in this matter, immediately soak the probe in 3M KCL solution overnight, then re- calibrate it before using your pH meter.
  • Page 36 MAINTENANCE REPLACING THE PROBE PRODUCT LIFESPAN The lifespan of your pH meter's probe is 1-3 years. This will depend on how often it is used and how well-maintained it is. If you need to replace your probe, follow the directions below. STEP 1 Remove the cap and probe ring before unplugging the probe.

  • Page 37: Troubleshooting Guide

    Displays similar If you don't see any damage to the probe, readings in any Broken probe contact AC Infinity customer support. If there is solution or always visible damage, replace your pH meter. displays 7.0 pH Probe is not fully...
  • Page 38 Why is moisture in my new pH meter? New pH meters are stored in a special solution to maintain the integrity of the electrode and its glass membrane. This glass membrane must be kept moist in order for the pH meter to function properly.
  • Page 39 AC INFINITY PRODUCTS Air Pump An adjustable air pumping system designed to benefit hydroponic systems by enrichening oxygen levels for enhanced plant growth. Built with a durable shell and multi-layered internal muffler, this air pump securely delivers one way-oxygenation while remaining ultra-quiet with minimal vibration.

  • Page 40: Warranty

    WARRANTY This warranty program is our commitment to you, the product sold by AC Infinity will be free from defects in manufacturing for a period of two years from the date of purchase. If a product is found to have a defect in material or workmanship, we will take the appropriate actions defined in this warranty to resolve any issues.
  • Page 41 No part of the materials including graphics or logos available in this booklet may be copied, photocopied, reproduced, translated or reduced to any electronic medium or machine readable form, in whole or in part, without specific permission from AC Infinity Inc.
  • Page 44 www.acinfinity.com...

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