horiba HP-300 Instruction Manual
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horiba HP-300 Instruction Manual

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pH meter
HP-300
Instruction Manual
CODE:GZ0000214574

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  • Page 1 HP-300 Instruction Manual CODE:GZ0000214574...
  • Page 2 HORIBA Advanced Techno, CO., Ltd. warrants that the Product shall be free from defects in material and workmanship and agrees to repair or replace free of charge, at option of HORIBA Advanced Techno, CO., Ltd., any malfunctioned or damaged Product attributable to responsibility of HORIBA Advanced Techno, CO., Ltd.
  • Page 3 Regulations Conformable Directive This equipment conforms to the following directives and standards: Directives: the EMC Directive 2004/108/EC Standards: [the EMC Directive] EN61326-1: 2006 Class A, industry Note When the sensor cable, the transmission cable, or the relay cable is extended to 30 m or more, the surge test specified in the EMC Directive for CE marking is not applied.
  • Page 4 For Your Safety Hazard Classification and Warning Symbols Warning messages are described in the following manner.Read the messages and follow the instructions carefully. Hazard classification This indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. This signal word is to be limited to the most extreme situations.
  • Page 5 WARNING If lightning might strike, install an arrester on the output side of the HP-300 and on the side of receiving instruments. Be sure to ground the grounding terminal (class D grounding).
  • Page 6 Product Handling Information Operational Precautions Use of the equipment in a manner not specified by the manufacturer may impair the protection provided by the equipment. And it may also reduce equipment performance. Therefore, exercise the following precautions: Do not press any operation key with the tip of your nail or any pointed thing. Do not use any organic solvent.

  • Page 7: Table Of Contents

    Installing the HP-300 ........
  • Page 8 Checks of HP-300........

  • Page 9: Overview

    Thank you very much for purchasing our pH meter HP-300. The HP-300 is designed to transmit the measured pH value as signals of 4 mA to 20 mA DC on the power line by connecting the pH electrode and a power source for 21 V to 32 V DC.

  • Page 10: Description Of Each Part

    Overview Description of each part Front view Cover This cover is used for Screw cap outdoor installation. When the two screw caps are removed, the Display part front case screws appear. The measured value and other information are displayed here. Front cover When the cover is opened, 6 operation...
  • Page 11 Overview Display part Status display Measured value display Status display Auxiliary display Indicator Operation key section Terminal block Electrode connection terminal Power connection terminal Hold input terminal...

  • Page 12: Description Of Operation Keys

    Overview Description of operation keys The operation keys are used to change the displayed information, enter parameters, or perform calibration. The displayed value or item can be changed when it blinks. Select a blinking value or item with the [ ] and [ ] keys and then press the ENT key. The setting will flash, indicating that it has been established.

  • Page 13: Description Of Indicator

    Overview Description of indicator Status display Turns ON whenthe Hold mode becomes active. HOLD indicator Starts blinking when contact input is received or when the Hold mode becomes active due to an error CAL indicator Turns ONwhen the Cal mode becomes active. EXT1 indicator Turns ON when contact input such as the cleaning signal is received SYSTEM ERROR...

  • Page 14: Description Of Operation Modes And Menu Items

    Overview Description of operation modes and menu items The HP-300 offers 3 kinds of operation modes and 4 kinds of menus. Operation mode Meas mode In this mode, measurements and control are performed. Cal mode In this mode, calibration is performed.
  • Page 15 Overview Modes and menus avaialble from Meas mode Meas mode The measurement Hold mode output is held. Hold down the HOLD key See 25. Setup menu [ ] key See 29. Cal menu [ ] key (ph/temperature calibration) See 35. User check menu [ ] key See 37.

  • Page 16: Installation

    Installation Installation Installation environment To ensure the use of the HP-300 in stable condition, install the HP-300 in a location where the following requirements are met: HP-300 The location shall be well ventilated. The ambient temperature shall be between 20°C and 60°C both inclusive.

  • Page 17: Installing The Hp-300

    Installation Installing the HP-300 The HP-300 can be installed on a pole (50A) or a wall. Installation on a pole View of the HP-300 installed on a pole Maintenance area Unit: mm Installation on a wall View of the HP-300...

  • Page 18: Installing The Electrode

    Installation Installing the electrode The electrode can be installed by either of the following two methods: Set up the electrode with a holder and then directly immerse the holder in the solution under measurement (immersion type holder). Set up the electrode with a holder and then directly insert the holder into the piping line (distribution type holder).

  • Page 19: Procedures For Connections

    1. Be sure to provide a bypass line on the piping line. Note Unless there is a bypass line, the HP-300 must be stopped when the maintenance or replacement of the electrode is carried out. 2. Use the distribution type holder with its output side open to atmospheric air.

  • Page 20: Connecting The 2-Wire Transmission (Distributor)

    To open the case immediate after it has rained, previously wipe off droplets on the case. Connecting the 2-wire transmission (distributor) WARNING If lightning might strike, install an arrester on the output side of the HP-300 and on the side of receiving instruments. Electric shock hazard Be sure to check that no electric power is supplied before starting the procedure.
  • Page 21 21 V and 32 VDC. • Use a balanced type shield cable. • When lightning might occur, install an arrester in two places between the HP-300 and the distributor. As illustrated below, connect the power cable and the grounding cable.

  • Page 22: Connecting The Hold Input Terminals For Cleaning

    Separate this grounding from any other grounding for electric equipment such as a motor. Connecting the hold input terminals for cleaning Connect these terminals when the HP-300 is used with our cleaner. When the hold contact signal from the cleaner turns ON, transmission output is held.

  • Page 23: Connecting The Electrode Cable

    For pH electrodes with S terminal and without SE terminal, such as 6108 and 6109 Terminal block Terminal block Relay cable Relay box (C-5A-YT2-PS) (CT-25pH) Short-circuiting plate pH electrode pH electrode Short-circuiting plate (provided with the HP-300) (6108, 6109) (6108,6109) (provided with the HP-300) Note Maintain the provided short-circuiting plate between R and SE.
  • Page 24 Note Remove the provided short-circuiting plate between R and SE. Temperature compensation electrode For the HP-300. one of the following four kinds of temperature compensation electrodes can be used: Resistance values at 25°C: 500 Ω, 6.8 kΩ, and 10 kΩ...
  • Page 25 Extension cable (C-5A-YT2-PS or C-5A-YT2-PSE) exclusively for electrode cable our relay box (CT-25pH) for exclusive use. The electrode cable is extendable up to 50 meters between the HP-300 and the electrode. It is recommended that the dedicated relay cable be housed in a conduit pipe to prevent static electricity from being generated due to induction, vibration, or any other reason.
  • Page 26 Installation 6. Strip covering of the lead wire (black with a white line). Be sure to strip covering (conductive plastic: black with a white line) up to the root of the transparent lead wire. Extend to make the braided shield thinner Braided shield 1 Braided shield 2 Lead wire: transparent...

  • Page 27: Operation

    Operation Operation Preparation for operation When first using the HP-300 after it has been shipped from factory or reset to the factory settings, perform the following work: Checking the wiring Initial setup Calibration Checking the wiring Check the following points: The power cable (transmission cable) and the electrode cable are connected properly.
  • Page 28 Initial setup The HP-300 was shipped in the initial state from factory. Even if the HP-300 is in the initial state, the basic use is possible. Make any changes, if necessary, in accordance with the instructions given in “ User Check menu ”...

  • Page 29: Measurement

    Measurement Measurement Meas mode 1. Turn ON the power. The measurement object is displayed on the display part. A measurement range is also displayed with the Meas mode selected. Measurement starts with the measured value displayed. In the Meas mode, this is the normal state. 2.
  • Page 30 Measurement Turn ON the power Meas mode Displayed for a few seconds Meas mode Calibration data check screen (Example of 2-point calibration display) Indicates the calibration points? Displays zero (STD) value Displays span (SLOPE) value Displays the elapsed number of days for calibration Moving average setup screen Establishes Changes the...
  • Page 31 Measurement Table 1 Items displayed in Meas mode Screen 1 Screen 2 Conditions Description Action Remarks The temperature The measured With may not be Measured value values for pH and temperature displayed display screen temperature are display depending on the displayed.
  • Page 32 Measurement Screen 1 Screen 2 Conditions Description Action Remarks Displays the calibration points Calibration data for calibration data. check screen (this display Calibration point example assumes check screen three-point calibration) Indicates asymmetry Zero (STD) Check potential (STD) at screen. pH7 as electric potential (mV).

  • Page 33: Setup Menu

    Measurement Setup menu The setup menu allows you to set sensor type, measurement parameters, display settings, calibration method, and transmission output. Entering the Setup menu 1. Hold down the HOLD key in the Meas mode until the HOLD indicator turns ON. 2.
  • Page 34 Measurement Table 2 List of items displayed on the Setup menu Setting Initial Screen 1 Screen 2 Description Remarks range value Set the moving average count. Set moving average count 1 to 50 Change the value when the measured (damping factor) value is not stable enough.
  • Page 35 Measurement Setting Initial Screen 1 Screen 2 Description Remarks range value Select a calibration method. Normally "Auto" should be selected. Set calibration "Auto", "Auto" For three-point calibration or type "bASic" calibration using a special standard solution, set this parameter to "bASic." Specify a calibration point.
  • Page 36 Measurement Setting Initial Screen 1 Screen 2 Description Remarks range value "opt" 0-14, 0-10, Specify a range for transmission output. 0-8, When transmission range is set to Set current range 2-12, 0-14 "opt," any arbitrary value may be 3-11, specified. 4-14, 4-10, 6-14,...

  • Page 37: Cal Menu

    Measurement Cal menu Entering the Calibration menu allows you to calibrate the pH electrode or the temperature electrode, or to manually enter the calibration value for the pH electrode. Entering the Cal menu To enter the pH Cal mode, there are two methods. This section describes the method of entering this menu from the Hold mode.
  • Page 38 Measurement Table 3 List of items displayed on the Setup menu Calibration Screen 1 Screen 2 Description Action Remarks Type Immerse the pH First screen with electrode in the ENT key: Goes to the the calibration standard solution next screen type set to "Auto"...
  • Page 39 Measurement Calibration Screen 1 Screen 2 Description Action Remarks Type CAL key: Changes the number of First screen calibration points displayed for one- Immerse the pH point calibration [ / ] key: electrode in the when the Changes the standard solution. calibration type is calibration point "bASic"...
  • Page 40 Measurement Calibration Screen 1 Screen 2 Description Action Remarks Type CAL key: Changes the number of First screen calibration points Immerse the pH displayed for two- electrode in the [ / ] key: point calibration standard solution Changes the when calibration for the first point.
  • Page 41 Measurement Calibration Screen 1 Screen 2 Description Action Remarks Type CAL key: Changes the number of First screen calibration points displayed for Immerse the pH three-point electrode in the [ / ] key: calibration when standard solution Changes the calibration type is for pH4 calibration point "bASic"...
  • Page 42 Measurement Calibration Screen 1 Screen 2 Description Action Remarks Type [ / ] key: Specifies a Calibrate the temperature temperature calibration value value. ENT key: Screen for Enter a variable Establishes the value temperature amount and Temperature Setting range calibration change the °...

  • Page 43: User Check Menu

    Measurement User Check menu Entering the User check menu allows you to check the display part or the transmission output or to initialize the settings. Entering the User check menu 1. Hold down the HOLD key in the Meas mode until the HOLD indicator turns ON. 2.
  • Page 44 Measurement Table 4 Items displayed on the User check menu Screen 1 Screen 2 Description Action Remarks The whole LCD is Screen to check the illuminated, allowing you to check the display. [ ]key : Allows you to Screen to check check 12 mA output transmission output 4 mA is output for...

  • Page 45: Calibration

    Measurement Calibration Calibration is classified into pH calibration and temperature calibration. Note After the power has been first turned ON or the electrode has been replaced, be sure to perform calibration with a standard solution. pH calibration pH calibration is classified into three kinds: auto, basic, and manual. Reference For selecting auto or basic calibration, see “...
  • Page 46 Measurement To cancel the calibration during its process, press the ESC key.You will return to the Cal menu or the Hold mode without changing calibration data. If an error occurs because the temperature sensor is immersed in a solution of a pH value different from the one specified on the Setup menu, take remedial action in accordance with the instructions given by the error code.
  • Page 47 Measurement 4. When the reading becomes stable enough, the second-point calibration is finished. Once the stability is determined as acceptable, the measured value stops blinking and the second-point calibration is finished. Subsequently, the calibration value is updated with "good" blinking on the measured value display part.
  • Page 48 Measurement For 1-point calibration For 2-point calibration For 3-point calibration 2. Press the [ / ] key to change the kind of standard solution used. Pressing the CAL key allows you to change the number of calibration points. For only the one- and two-point calibration, an arbitrary standard solution may be used.When calibration is performed using an arbitrary standard solution, display "USr"...
  • Page 49 Measurement The measure value blinks and the indicator changes incrementally. When the reading becomes stable enough, the standard solution is automatically detected and the closest kind of standard solution is displayed on the auxiliary display part. If the kind of standard solution displayed on the auxiliary display part is different, it can be changed using the [ / ] key.

  • Page 50: Temperature Calibration

    Measurement Temperature calibration The temperature calibration is used to correct temperature. Note Immerse the electrode in a solution at a known temperature and then well expose it to the water temperature. When you enter the Hold mode, transmission output becomes the output value specified on the Setup menu.

  • Page 51: Manual Ph Input Calibration

    Measurement Manual pH input calibration For this calibration, manually enter the calibration value for pH. Operation procedure Enter the Cal mode from the Meas mode. 1. Hold down the HOLD key in the Meas mode until the HOLD indicator turns ON. The Hold mode will become active with HOLD displayed on the upper left part.
  • Page 52 Measurement To cancel the calibration during its process, press the ESC key. You will be brought back to the Cal menu without updating the calibration data. To subsequently set any other calibration parameter, press the [ / ] key to select the parameter to be set.

  • Page 53: Information For Accurate Measurements

    Information for accurate measurements Information for accurate measurements This chapter provides information on maintenance in order to ensure the highest accuracy and best use of the HP-300. It describes accuracy maintenance including the daily calibration. Daily calibration (Cal mode) The method of daily performing calibration is described below:...

  • Page 54: Maintenance Procedure For Hp-300

    Note When a cleaner is installed, stop its operation and then perform the maintenance of the electrode. Turn OFF the HP-300 or hold down the HOLD key to enter theHold modeand then start the maintenance. View of pH electrode alone...

  • Page 55: Adding Kcl Internal Solution

    Information for accurate measurements WARNING Strong acid hazard If dilute hydrochloric acid gets into your eye, its mucosa may be irritated, leading to blindness. In handling hydrochloric acid, be sure to wear protective goggles, protective gloves, and a protective mask. If dilute hydrochloric acid gets into your eye, immediately rinse the eye with a large quantity of water for more than 15 minutes.In rinsing the eye, fully open the lid with your fingers so that the eyeball and the lid are well exposed to running water.

  • Page 56: Replacing The Electrode

    Information for accurate measurements Replacing the electrode CAUTION The electrode is made of glass and broken when exposed to impact or strong force.In handling the electrode, exercise sufficient care. Holder cap (that comes with the electrode) Cable packing (that comes with the electrode) Holder Internal solution Electrode...
  • Page 57 Information for accurate measurements 9. Remove the protective cap for the electrode and the tape for the KCl filling inlet on the electrode. Tape for the KCl filling inlet Electrode Note Unless the tape for the filling inlet on the electrode is removed, no measurements can be made successfully.
  • Page 58 Information for accurate measurements 15. Slightly draw the cable packing out of the holder packing. Holder cap Holder cap Cable packing Cable packing Holder Holder 16. Open the internal solution filling inlet by about one third. Now the electrode is ready for use.

  • Page 59: Troubleshooting

    The electrode cable is improperly wired. Check for any loosened screws on the terminal In particularly, there is electrical block in the HP-300 and that in the relay box and discontinuity in the G- or R-line. for any wrong wiring.

  • Page 60: Error Code

    Troubleshooting Error code The HP-300 has a capability of displaying various error codes. An error code is displayed on the auxiliary display part while blinking. Description of error codes Error Occurs during Display Error contents Description of contents Occurs during...

  • Page 61: Remedial Actions For Error Codes

    Troubleshooting When an error code is displayed, the HOLD indicator starts blinking and transmission output becomes the output value specified on the Setup menu. See “ Set currently held value ” (page 28) Remedial actions for error codes When an error code is displayed, take remedial action in accordance with the table below: Error code Trigger condition Reset condition...
  • Page 62 Troubleshooting Error code Trigger condition Reset condition Possible cause Action Temperature is 55°C Press the ESC E-15 minimum when The temperature of key. Decrease the temperature (standard solution calibration is performed standard solution for pH10 of that solution. Perform re- temperature error) using the standard is 55°Cor lower.
  • Page 63 ” (page 26) Turn OFF the power The internal system in the and then turn it ON Turn OFF the power and HP-300 is abnormal. again. then turn it ON again. The stored data such as E-91 If the system error does...

  • Page 64: Remedial Action For Ph Electrode's Fault

    Troubleshooting Remedial action for pH electrode's fault If our pH electrode becomes faulty, take remedial action in accordance with the following table. If the pH electrode is not rectified after taking the remedial action, contact us. Symptom Remedial action Possible reason Cracking of glass Replace the electrode as it is membrane/reference...

  • Page 65: Self-Check Capability Of Ph Electrode

    Troubleshooting Self-check capability of pH electrode The HP-300 has a self-check capability for the pH electrode.This capability detects any cracking of the glass response membrane of the electrode or any clogging of the reference electrode (liquid junction).It may not work depending on the electrode type or the operating environment.This section describes the self-check capability.

  • Page 66: Cases Where The Self-Check Capability Does Not Work Properly

    Troubleshooting pH electrode with liquid ground electrode (e.g., 6171, 6172, 6173, or 6174) For this electrode, both cracking of the glass response membrane ("g") and the liquid junction resistance (r) error can be detected. Cases where the self-check capability does not work properly. The self-check capability may not properly work depending on the electrode type or the operating environment.This section describes the cases where this capability does not work properly.
  • Page 67 The self-check capability does not work properly because of its operating principle. In this case, disable this capability when using the HP-300. In this case, use the HP-300 with self-check capability turning OFF Even if the glass response membrane has cracking, the response membrane error (E-71) may not occur.

  • Page 68: Reference Data

    Reference data Reference data Description Product name pH Meter Model HP-300 Combined sensor Glass electrode pH 0 to pH 14 (display range: pH -1 to 15) 0°C to 100°C Measurable Display range when automatic detection capability for each temperature range Temperature sensor type is used: -10°C to 110°C...
  • Page 69 Reference data Calibration method Auto or basic (manual) calibration Number of calibration points Selectable from1, 2, and 3 points pH 2, 4, 7, 9, 10 Kinds of standard solutions Any pH standard solution (with difference of 2 pH or more) for basic calibration Calibration Automatic detection of kind of standard solution...
  • Page 70 Reference data Note Note 1: The maximum load resistance is available within the range shown in the figure below, depending on power supply voltage: Relation between power supply voltage and load resistance Operable range Power supply voltage (V) Note 2: The standard for effect on the reading by the electromagnetic field of the radiated radio frequency and by the conducted interference is within the measured pH value ±...

  • Page 71: Information On Standard Solutions

    Reference data Information on standard solutions The HP-300 allows you to perform calibration using five kinds of standard solutions. The pH values of pH standard solutions at each temperature are shown in the table below: pH2 standard pH4 standard pH7 standard...

  • Page 72: Spare Parts

    Reference data Spare parts Part name Model Specifications Part number Standard solution for pH 4 (accuracy: ±0.02 pH) pH standard solution #100-4 (500 mL) 3200043638 Standard solution for pH 7 pH standard solution #100-7 (500 mL) 3200043637 (accuracy: ±0.02 pH) pH standard solution #100-9 (500 mL)

  • Page 73: Disposal Method

    Reference data Disposal method To dispose of the HP-300, comply with the ordinances and regulations specified in your region. The parts for the HP-300 are made of the following raw materials: Name Raw material Name Raw material Nameplate Terminal information plate...
  • Page 74 Reference data Name Raw material Name Raw material Operation information plate Rating nameplate Parallel pin SUS304 FG mesh Separately disposing of printed circuit boards When the internal printed circuit boards must be separately disposed of, perform the following steps: Tool to be supplied Phillips screwdriver Disassembling procedure WARNING...
  • Page 75 Headquarters 31, Miyanonishi-cho, Kisshoin, Minami-ku, Kyoto, 601-8306 TEL:+81-75-321-7184 FAX:+81-75-321-7291 Tokyo Office 4F Higashikanda Fukoku Seimei Building, 1-7-8, Higashikanda, Chiyoda-ku, Tokyo, 101-0031 TEL:+81-3-3851-3150 FAX:+81-3-3851-3140 Nagoya Office 6F Sumitomo Seimei Chikusa 2nd Building, 3-15-31, Aoi, Higashi-ku, Nagoya, 461-0004 TEL:+81-52-937-0812 FAX:+81-52-937-0675...

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