Thermo Scientific ALPHA PH 550 Manual
Thermo Scientific ALPHA PH 550 Manual

Thermo Scientific ALPHA PH 550 Manual

Monitor ph / orp

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Alpha pH 550
Monitor
pH / ORP

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Summary of Contents for Thermo Scientific ALPHA PH 550

  • Page 1 Alpha pH 550 Monitor pH / ORP...
  • Page 2 ROSS and the COIL trade dress are trademarks of Thermo Fisher Scientific Inc. U.S. patent 6,793,787. AQUAfast, Cahn, ionplus, KNIpHE, No Cal, ORION, perpHect, PerpHecT, PerpHecTion, pHISA, pHuture, Pure Water, Sage, Sensing the Future, SensorLink, ROSS, ROSS Ultra, Sure-Flow, Titrator PLUS and TURBO2 are registered trademarks of Thermo Fisher.
  • Page 3 Preface This manual serves to explain the use of the Alpha pH 550 Monitor. The manual functions in two ways, firstly as a step by step guide to help the user operate the instrument. Secondly, it serves as a handy reference guide. This instruction manual is written to cover as many anticipated applications of the Alpha pH 550 Monitor.
  • Page 4: Table Of Contents

    Configuration Settings..................28 Viewing Electrode Properties................. 30 TECHNICAL SPECIFICATIONS LIST OF ACCESSORIES Thermo Scientific Order Codes..............33 Eutech Instruments Order Code ..............34 TROUBLESHOOTING GENERAL INFORMATION Warranty......................36 Return of Goods..................... 36 Guidelines for Returning Unit for Repair ............36 Maintenance and Cleaning ................
  • Page 5: Introduction

    They will be glad to assist you. Intended Use Alpha pH 550 Monitors are intended solely for pH or ORP and temperature measurement, as described in this instruction manual. Any other use, or use not mentioned here, that is incompatible with the technical specifications is deemed inappropriate.
  • Page 6: Safety Instructions

    Remove the unit from the wall. Correct Disposal of the Instrument When the Alpha pH 550 is permanently taken out of service, obey the local environmental regulations for correct disposal or send the instrument to your local distributor, they will take care of proper disposal.
  • Page 7: Getting Started

    GETTING STARTED Description of Instrument The Alpha pH 550 Monitor is used for measuring pH and temperature values. The pH values can be measured using industrial combination pH sensors. The temperature values can be measured using 3-wire Pt100 / Pt1000 sensors. The...
  • Page 8: Measurement System

    • A pH sensor with integrated or separate Pt100/Pt1000 temperature sensor • An appropriate measurement cable • An immersion, flow or process assembly Alpha pH 550 Monitor lpha pH550 pH Monitor Power Adaptor (+9 V DC) Housing and Measurement Cable...
  • Page 9: Connecting Peripherals

    Connecting Peripherals 2.3.1 Connection Terminals Remove Back Cover: Remove the screws from the four corners at the back of the pH Monitor. Remove the back cover. The connectors are exposed on the back PCBA as shown in the Figure 1 below. Connectors: •...
  • Page 10 2.3.2 Switching Between PT100 & PT1000 Temperature Sensors The Monitor supports both Pt100 & Pt1000 (2-wire or 3-wire) temperature sensors. The default factory setting is Pt100. If you need to use Pt1000 temperature sensor, you have to change the jumper setting (J7) as described below. Remove Back Cover: Remove screws from the four corners at the back of the pH Controller.
  • Page 11 2.3.3 Connecting pH/ORP Electrode If the pH/ORP electrode has a BNC connector, remove the BNC connector from the cable. NOTE: Oakton Instruments offers an optional ‘BNC to Spade Lug adapter’ (Order code: 05994-90) that can be used with pH/ORP electrode without removing the BNC connector. Strip the insulation of the cable so that the bare wires are exposed enough for connection as shown in Figure 3.
  • Page 12 2.3.4 Connecting Temperature Probe For Automatic Temperature Compensated (ATC) pH readings, a 100Ω Pt RTD temperature probe (2-wire or 3-wire) can be connected to the Controller. 3-Wire Probe: Connect PT100 compensate wire to Pin 5 of J10 connector Connect PT100 sense wire to Pin 6 of J10 connector Connect PT100 GND wire to Pin 7 of J10 connector 2-Wire Probe: Short Pin 5 &...
  • Page 13: Installation

    Installation 2.4.1 Mechanical Dimensions Alpha pH 550 Alpha pH 600 pH Monitor PH/ORP RF Transmitter 2.4.2 Wall Mount Pierce through holes at both sides Cover the catch slots at both sides with overlays - 9 -...
  • Page 14 2.4.3 Panel Mount Prepare panel cut-out of 92.0 mm X 92.0 mm Remove back cover of pH Monitor and slide it through panel cut-out Gasket Panel Panel Insert threaded rods through catch until pH Meter is held against panel Attach catch to both sides of pH Meter - 10 -...
  • Page 15: Display & Keypad

    Display & Keypad 2.5.1 Display Overview The Liquid Crystal Display (LCD) of Alpha pH 550 has two alpha-numerical displays (Upper and a Lower). • Upper display: Measured pH, mV or relative mV value are displayed when the Monitor is in normal operation (measurement) mode.
  • Page 16 Mode Indicators Measurement mode; blinks in Symmetric mode MEAS (Refer Section 3.1& 5.5 ) SETUP Setup mode (Refer Section 5) Calibration mode (Refer Section 4) Status Annunciators READY Appears when the reading is stable Appears when Automatic Temperature Compensation (ATC) is enabled.
  • Page 17 2.5.2 Key Functions Alpha pH 600 Alpha pH 550 pH Monitor PH/ORP RF Transmitter Description Enter Calibration mode. Enter Setup mode Access sub screens (parameters) within a group of settings in Setup mode Confirm (save) setup parameters and numerical values Start/Confirm calibration in Calibration mode.
  • Page 18: Operation

    OPERATION Measurement mode When the pH Monitor is powered on, the display shows all the LCD segments briefly, and then automatically enters into the Measurement mode. MEAS READY 7 .00 °C 2 5 . 0 The mode indicator ‘MEAS’ at the top of the display indicates that the pH monitor is in Measurement mode;...
  • Page 19: Menu Overview

    Menu Overview 3.2.1 Alpha pH 550 MEAS READY °C SETUP SETUP SETUP SETUP SETUP - 15 -...
  • Page 20: Calibration Mode

    CALIBRATION MODE Preparing the Monitor & Electrode for Calibration Before starting calibration, make sure that the pH Monitor is in appropriate measurement mode (pH or ORP). When the monitor is switched on, it starts up with the measurement mode last used. For example, if the pH Monitor is switched off in ORP measurement mode, it starts up in ORP mode when it is switched on.
  • Page 21: Ph Calibration

    NOTES: • To exit calibration mode at any time during calibration, press ▲ and ▼ keys simultaneously (escape). The pH Monitor returns to the measurement mode and the old calibration values remain active • The calibration is always carried out in the units of measurement (pH or mV), selected in setup mode pH Calibration The pH Monitor is capable of calibration of up to 2 points using USA or NIST pH...
  • Page 22 Upper display shows the current uncalibrated pH reading. Allow the reading to stabilize. LCD shows ‘READY’ annunciator when the reading is stable. Press CAL key to confirm the reading. The calibration is completed. The pH Monitor re-calculates electrode properties based on the calibration. The new slope (in mV) is shown in the upper display and pH reading at 0mV (pH7.00 ±...
  • Page 23 Press ENT key to confirm the reading. The pH Monitor moves to the second calibration point. The lower display shows next standard buffer value (pH 4.01). Use ▲ and ▼ keys to select your second buffer from one of the preset values: pH 4.01 or 1.68 or 10.01 or 12.45.
  • Page 24: Point Calibration

    1-Point Calibration: MEAS READY READY HOLD HOLD HOLD °C From pH measurement mode press CAL key to enter calibration mode as described in section 4.2. The LCD shows ‘CAL PH’. Press ENT key to begin calibration. Place the electrode in pH 6.86 buffer. Immerse the temperature probe in the buffer solution if ATC mode is enabled.
  • Page 25: Orp Calibration

    From pH measurement mode press CAL key to enter calibration mode as described in section 4.2. The LCD shows ‘CAL PH’. Press ENT key to begin first calibration point. Place the electrode in pH 6.86 buffer. Immerse the temperature probe in the buffer solution if ATC mode is enabled.
  • Page 26: Temperature Calibration

    MEAS R.mV READY READY READY HOLD HOLD HOLD °C From ORP measurement mode press CAL key to enter calibration mode as described in section 4.2. The LCD shows ‘CAL OrP’. Press ENT key to begin calibration. Place the electrode in a standard ORP solution of known OPR value. Immerse the temperature probe in the buffer solution if ATC mode is enabled.
  • Page 27: Setup Mode

    SETUP MODE Enter Setup mode The setup mode allows you to customize the settings of the pH Monitor to suite your requirements. While in measurement mode, press the ENT key to access setup mode. LCD shows ‘SETUP’ mode indicator and the first page of setup (OFS – offset settings).
  • Page 28: Electrode Offset Settings

    Electrode Offset Settings NOTE: ‘Electrode Offset Setting’ is not available when the pH Monitor is configured for ORP measurement mode. (Refer Section 5.5 for switching measurement modes) In applications where continuous pH measurement is required, it may not be convenient to remove the electrode for calibration. In such cases, an on-line offset adjustment is recommended.
  • Page 29: Temperature Settings

    allowed. Press ENT key to confirm the value. The pH Monitor reverts to OFS screen. Press ▲ or ▼ key to access other setup screens or press ▲ and ▼ key simultaneously (escape) to return to measurement mode. Temperature Settings Automatic Temperature Compensation (ATC): The pH values other than pH 7.00 are affected by temperature.
  • Page 30 Selecting unit of measurement for temperature: The upper display shows ‘Unit’ and the lower display shows the last configured unit of measurement for temperature. Press ▲ or ▼ key to select the desired units for temperature (ºC or ºF). Press ENT key to confirm your selection. Enable/disable ATC: The lower display shows ‘AtC’...
  • Page 31: Buffer Selection Settings

    Press ▲ or ▼ key to access other setup screens or press ▲ and ▼ key simultaneously (escape) to return to measurement mode. To exit from any intermediate steps, press ▲ and ▼ keys simultaneously (escape). The pH Monitor returns to the first screen of temperature settings SET ºCF.
  • Page 32: Configuration Settings

    Press ENT key to confirm your selection. The pH Monitor reverts to bUFF screen. Press ▲ or ▼ key to access other setup screens or press ▲ and ▼ key simultaneously (escape) to return to measurement mode. Configuration Settings Configuration settings let you configure the pH Monitor to different measurement & operation modes &...
  • Page 33 SETUP SETUP SETUP SETUP SETUP SETUP SETUP SETUP MEAS READY °C From pH (or ORP) measurement mode press ENT key to enter setup mode as described in section 5.1. The LCD shows the first screen of setup mode (OFS). Press ▲ or ▼ key to select configuration settings screen (Cnfg).
  • Page 34: Viewing Electrode Properties

    CAL dEF: Reset all calibration settings of the pH Monitor to factory defaults, when confirmed by pressing ENT key. Press ENT key to confirm your selection. - If ‘nO dEF’ was selected, the pH Monitor reverts to Cnfg screen. Press ▲ or ▼ key to access other setup screens or press ▲...
  • Page 35 From pH (or ORP) measurement mode press ENT key to enter setup mode as described in section 5.1. The LCD shows the first screen of setup mode (OFS). Press ▲ or ▼ key to select viewing electrode properties screen (CdAt). Press ENT key to view electrode properties (CdAt).
  • Page 36: Technical Specifications

    TECHNICAL SPECIFICATIONS General Specification (a) pH Measuring Range 0.00 to 14.00 pH Resolution 0.01 pH Accuracy ± 0.01 pH (b) mV Measuring Range -1000 to 1000 mV Resolution 1 mV Accuracy ± 1 mV (c) Temperature Measuring range -10.0 to +125.0 C or +14.0 to +257 Resolution F (Resolution is 0.1...
  • Page 37: List Of Accessories

    LIST OF ACCESSORIES Thermo Scientific Order Codes pH Monitor Replacement and Accessories Item Description Order Code Alpha pH 550 Monitor TSPHCP0550 Combination pH electrode with 5m cable EC-ARTSO-05B Combination pH electrode with PMP and 5m cable EC-ARGTSO-05B Combination pH electrode with PT 100, PMP and 5m cable...
  • Page 38: Eutech Instruments Order Code

    Eutech Instruments Order Code pH Monitor Replacement and Accessories Item Description Order Code Alpha pH 550 Monitor 56717-30 pH/Temp electrode with PMP and 10-ft cable 35807-20 Platinum ORP electrode with 10-ft cable 35801-21 BNC to spade lug adapter 05994-90 Calibration Solutions...
  • Page 39: Troubleshooting

    TROUBLESHOOTING Problem Cause Solution Power on, but no display Loose connections Ensure cables make good contact Incorrect output voltage of the power adaptor Use an power adaptor with specified output voltage Unstable pH reading Dirty electrode Clean electrode and recalibrate Electrical noise interference Switch to Symmetric mode...
  • Page 40: General Information

    GENERAL INFORMATION Warranty This monitor is supplied with a one-year warranty against significant deviations in material and workmanship from date of purchase and a six-month warranty for probe. Each instrument will have a warranty card with a specific serial number. The warranty card must be endorsed by the Authorized Distributor at the point of sale.
  • Page 41: Maintenance And Cleaning

    Customer Service Dept., if possible. Maintenance and Cleaning Maintenance The Alpha pH 550 Monitor contains no user repairable components. Please contact your authorized distributor if there is any problem with the unit. Cleaning To remove dust, dirt and spots, the external surfaces of the pH Monitor may be wiped with a damp, lint-free cloth.
  • Page 42: 10 Appendices

    10 APPENDICES 10.1 Appendix 1 – pH Buffer Values at Various Temperatures The following table shows the various pH values at different temperature of the solution during calibration. Temperature pH 4.01 pH 6.86 pH 7.00 pH 9.18 pH 10.01 4.01 6.98 7.12 9.47...
  • Page 43 CnFg Configuration Default values Factory (defaults) Offset Reading is over range Oxidation Reduction Potential P.ºC Process temperature Setting Symmetrical mode Type Reading is under range - 39 -...
  • Page 44 Water Analysis Instruments North America 166 Cummings Center Beverly, MA 01915 USA Toll Free: 1-800-225-1480 Tel: 1-978-232-6000 Dom. Fax: 1-978-232-6015 Int’l Fax: 978-232-6031 Europe P.O. Box 254, 3860 AG Nijkerk Wallerstraat 125K, 3862 CN Nijkerk, Netherlands Tel: (31) 033-2463887 Fax: (31) 033-2460832 Asia Pacific Blk 55, Ayer Rajah Crescent #04-16/24, Singapore 139949...

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Alpha ph 550 phorp monitor

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