Fisher Scientific accumet AE150 User Manual
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Fisher Scientific accumet AE150 User Manual

Ph benchtop meter
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User Manual
Fisher Scientific accumet AE150 pH Benchtop Meter
This user manual provides instructions on operating the Fisher Scientific™
accumet™ AE150 pH benchtop meter. Detailed information on meter setup,
operation and features is provided in the appropriate sections of this user manual.
Please visit www.fishersci.com/accumet for addional information on Fisher Scientific
accumet meters and electrodes.
accumet AE150 pH Benchtop Meter
Revision Date: December 9, 2015
68X000635 Revision A

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Summary of Contents for Fisher Scientific accumet AE150

  • Page 1 User Manual Fisher Scientific accumet AE150 pH Benchtop Meter This user manual provides instructions on operating the Fisher Scientific™ accumet™ AE150 pH benchtop meter. Detailed information on meter setup, operation and features is provided in the appropriate sections of this user manual.

  • Page 2: Table Of Contents

    AE150 pH Benchtop Meter Table of Contents Introduction ........................... 3 Display ..........................4 Keypad ..........................5 Rear Instrument Panel ....................... 6 Meter Start Up........................7 Connecting Electrodes and Accessories ................7 Connecting the Electrode Holder (Optional) ............... 8 Meter Preparation Prior to Calibration ................9 Meter Setup Functions.....................

  • Page 3: Introduction

    The Fisher Scientific accumet AE150 pH benchtop meters are capable of measuring pH, mV and temperature and are equipped with a LCD (Liquid Crystal Display) with simultaneous display of pH and temperature measured values or mV and temperature measured values for efficient sample reading and recording.

  • Page 4: Display

    AE150 pH Benchtop Meter Display The Fisher Scientific accumet AE150 pH benchtop meter display has mode indicators for pH, mV, relative mV (R.mV) and temperature readings. The primary (upper) display shows the measured values of pH, mV or R.mV and the secondary (lower) display shows the temperature reading in Celsius or Fahrenheit.

  • Page 5: Keypad

    A splash-resistant membrane keypad with tactile feedback is designed to help make the meter easier to use. Key names and symbols assist with describing the function controls. Fisher Scientific accumet AE150 pH Benchtop Meter Keypad Measure and Setup Modes Calibration Mode Powers the meter on and off.

  • Page 6: Rear Instrument Panel

    AE150 pH Benchtop Meter Rear Instrument Panel The meter provides a set of connectors for the various accessories. Listed in the table are the details of the available meter connections. Connection Function 2.5 mm phono jack connection for ATC temperature probe For connection to sensors with BNC connectors;...

  • Page 7: Meter Start Up

    AE150 pH Benchtop Meter Meter Start Up Connecting Electrodes and Accessories Connect the accessory connectors at the rear of the instrument panel. During operation, it is important that water does not get onto the BNC connector. Also avoid touching the connector with soiled or wet hands.

  • Page 8: Connecting The Electrode Holder (Optional)

    AE150 pH Benchtop Meter Connecting the Electrode Holder (Optional) The electrode holder is a useful tool for mounting electrodes during measurement or when electrodes are being stored. The meter’s base plate (bottom of meter, shown in Figure 1) has a side metal bar to which a swivel electrode holder can be attached. The electrode holder can be mounted on either the right or left side of the meter.

  • Page 9: Meter Preparation Prior To Calibration

    AE150 pH Benchtop Meter Meter Preparation Prior to Calibration Switching the Meter On and Off: Press the ON/OFF key to power the meter on. All the LCD segments will be displayed for a few seconds and then the display switches to the last measurement mode. To power the meter off, press the ON/OFF key again.

  • Page 10: Meter Setup Functions

    AE150 pH Benchtop Meter Meter Setup Functions Use the Setup mode to customize meter preferences and defaults: • P1.0: Memory Clear (CLr) • P2.0: View electrode data (ELE) • P3.0: Select buffer set (bUF) • P4.0: Reset to factory default settings (rSt) To Enter the Setup Mode: 1.

  • Page 11: P2.0 View Electrode Diagnosis Program

    AE150 pH Benchtop Meter P2.0 View Electrode Diagnosis Program This program allows the electrode parameters to be checked for diagnostic purposes. Depending on the last display mode, the displayed electrode information will vary. If pH was the display mode, the electrode offset value in mV and slope in percent will be shown. If mV was the display mode, the electrode offset value in mV will be shown.

  • Page 12: P3.0 Select Ph Buffer Standard Program

    AE150 pH Benchtop Meter P3.0 Select pH Buffer Standard Program This program allows for the selection from one of two standard calibration buffer sets, depending on your requirements. The available buffer sets are USA and NIST. 1. With the meter powered off, press and hold the MODE key and press and release the ON/OFF key.

  • Page 13: P4.0 Meter Reset Program

    AE150 pH Benchtop Meter P4.0 Meter Reset Program This program gives the option to either reset the calibration data for all parameters (pH and mV modes) or reset the meter back to the factory default conditions except for the temperature calibrated value and buffer set selection (NIST or USA).

  • Page 14: Calibration

    Calibration pH Calibration The Fisher Scientific accumet AE150 pH benchtop meter is capable of performing a one to five point pH calibration for accuracy across the pH measurement range. The multi-point calibration offers flexibility of calibrating using either USA or NIST buffer sets with their fixed calibration points: •...
  • Page 15 AE150 pH Benchtop Meter One Point Calibration 4. Select the first pH buffer (pH 7.00 or pH 6.86) and pour the buffer into a clean container. 5. Immerse the pH electrode and temperature probe into the first pH buffer.
  • Page 16 AE150 pH Benchtop Meter a. The upper display will flash the calibration value briefly before storing the calibration point in the meter. b. The lower display will switch to the next calibration buffer value, based on the selected buffer set.

  • Page 17: Mv Calibration

    AE150 pH Benchtop Meter mV Calibration If relative mV has never been calibrated or if the meter has been reset, the value shown in the upper display during the calibration will be the same as the absolute mV value.

  • Page 18: Temperature Calibration

    AE150 pH Benchtop Meter Temperature Calibration To perform the temperature calibration procedure, the temperature probe must be attached to the meter and “ATC” icon must be shown on the display. 1. Immerse the temperature probe into a solution of known temperature, such as a temperature bath, for a few minutes until the temperature probe stabilizes.

  • Page 19: Measurements

    AE150 pH Benchtop Meter Measurements Temperature Compensation Automatic Temperature Compensation (ATC): For ATC measurements, simply attach the temperature probe to the meter and the “ATC” icon will be shown on the display. Note: If using a temperature probe, the probe must be submersed in the liquid being measured so that the sample temperature can be recorded and compensated for (pH measurement mode only) along with the primary measurement.

  • Page 20: Ph Or Mv Measurements

    AE150 pH Benchtop Meter pH or mV Measurements Note: Remove the protective cap or storage bottle (if any) from the electrode before proceeding with measurement or calibration. Take care not to exert too much force, as this may cause damage to the electrode. Whenever the electrode is not in use, put it into storage bottle or protect the electrode with the cap provided.

  • Page 21: Storing And Recalling Data From Memory

    AE150 pH Benchtop Meter Storing and Recalling Data from Memory The Fisher Scientific accumet AE150 pH benchtop meter allows up to 100 data sets to be stored and recalled in its non-volatile memory in a Last-In-First-Out (LIFO) sequence. Data sets are stored with a specified location, as indicated on the display.

  • Page 22: Ph Electrode Maintenance

    AE150 pH Benchtop Meter pH Electrode Maintenance pH electrodes are susceptible to dirt and contamination and may need to be cleaned regularly, depending on the extent and condition of use. After Use Storage After measurements are done, use the following procedure for proper electrode storage: 1.

  • Page 23: Electrode Cleaning And Rejuvenation

    AE150 pH Benchtop Meter Electrode Cleaning and Rejuvenation pH electrodes that are functioning properly or have not been in use for a period of time may be restored to normal performance by one or a combination of following procedures: Salt deposits –...

  • Page 24: Troubleshooting Guide

    AE150 pH Benchtop Meter Troubleshooting Guide Error Messages The table provides a quick guideline for diagnosis of possible problems indicated by meter generated messages. The table also provides possible solutions to problems encountered. Error Message Indicates Cause Corrective Action...

  • Page 25: Additional Information

    AE150 pH Benchtop Meter Additional Information pH and Temperature Automatic Temperature Compensation (ATC) compensates for temperature changes. Some solutions show an increase in pH while others show a decrease in pH with the same temperature change. Always record the solution temperature along with the pH value when taking measurements.

  • Page 26: Meter Specifications

    AE150 pH Benchtop Meter Meter Specifications pH Range 0.00 to 14.00 pH pH Resolution 0.01 pH ± 0.01 pH pH Accuracy ± 1999 mV mV Range 0.1 mV (± 199.9 mV), 1 mV beyond ± 200 mV mV Resolution ±...

  • Page 27: Ordering Information

    Fisher Scientific accumet AE150 pH benchtop meter education set with 13-636-AE151 13-620-108B single junction gel pH electrode, 13-620-22 ATC probe and stand Fisher Scientific accumet AE150 pH benchtop meter bio set with 13-620-299B 13-636-AE152 double junction gel pH electrode, 13-620-22 ATC probe and stand...

  • Page 28: Warranty

    AE150 pH Benchtop Meter Warranty The accumet AE150 pH benchtop meter is supplied with a 3 year warranty from manufacturing defects from the date of purchase. If repair or adjustment is necessary and has not been the result of abuse or misuse within the designated period, please request to return the meter and correction will be made without charge.

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