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Summary of Contents for LTH Electronics BPD17
- Page 1 BPD17 pH / Redox Monitor Operation Guide...
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Page 3: Preface
Preface Product warranty The BPD17 pH / Redox Monitor has a warranty against defects in materials and workmanship for three years from the date of shipment. During this period LTH will, at its own discretion, either repair or replace products that prove to be defective. The associated software is provided ‘as is’... -
Page 4: Electromagnetic Compatibility
Disposal As per directive 2012/19/EU, please observe the applicable local or national regulations concerning the disposal of waste electrical and electronic equipment. BPD17 pH / Redox Monitor - 2 - Operating Guide... - Page 5 Preface Declaration of Conformity BPD17 pH / Redox Monitor - 3 - Operating Guide...
- Page 6 Preface Blank BPD17 pH / Redox Monitor - 4 - Operating Guide...
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Page 7: Table Of Contents
MicroSD Card Interface ................... 19 Installation and Choice of pH / Redox Electrodes ..........20 Care and Maintenance of pH / Redox Electrodes .......... 20 BPD17 pH / Redox Input Connection Details ..........22 Temperature Sensor Connections ..............25 Extension Cable Connections ................26 ... - Page 8 Appendix A - Temperature Data ................65 Appendix B - Error Messages ..................66 Fault Finding ........................68 Problems with Cables and Connectors ............. 69 Guarantee and Service ....................70 BPD17 pH / Redox Monitor - 6 - Operating Guide...
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Page 9: Introduction
Introduction Introduction The BPD17 is a microprocessor controlled pH and Redox (ORP) measurement instrument that can be used with a wide range of Single ended or differential electrodes to measure and control a broad spectrum of solution pH or Redox. To achieve this, the instrument utilises a multifunction LCD to display the primary reading and temperature, show operational status and to provide an intuitive user interface. -
Page 10: Ph / Redox (Orp) Input Specification
Temperature sensor can be mounted in the sensor or separately. -50 °C to +150 °C (-58 °F to +302 °F) for full specification. Range of Temperature Measurement Temperature Accuracy ± 0.5 °C (when using PT1000) BPD17 pH / Redox Monitor - 8 - Operating Guide... - Page 11 2014/30/EU using BS EN 61326-1: 2013. 2014/35/EU using BS EN 61010-1: 2010. Low Voltage Directive Universal 90-265V AC, 9W max. Power Supply LV Option 12 – 30 V DC, 4W max. BPD17 pH / Redox Monitor - 9 - Operating Guide...
- Page 12 Specification UL 94-V0 PC/ABS. Instrument Housing IP66. Ingress Protection Rating (IEC 60529 Protection Rating) Maximum 800 grams (instrument only). Weight 175 x 150 x 119 mm (H, W, D). Dimensions BPD17 pH / Redox Monitor - 10 - Operating Guide...
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Page 13: Installation - Safety & Emc
LOCAL WIRING AND SAFETY REGULATIONS SHOULD BE STRICTLY ADHERED TO WHEN INSTALLING THIS UNIT. SHOULD THESE REGULATIONS CONFLICT WITH THE FOLLOWING INSTRUCTIONS, CONTACT LTH ELECTRONICS OR AN AUTHORISED LOCAL DISTRIBUTOR FOR ADVICE. To maintain the specified levels of Electro Magnetic Compatibility (EMC, susceptibility to and emission of electrical noise, transients and radio frequency signals) it is essential that the types of cables recommended within these instructions be used. -
Page 14: Noise Suppression
Use the internal relays to switch external slave relays or contactors when switching heavy or reactive loads. Fit an in-line mains filter close to the power terminals of the instrument. BPD17 pH / Redox Monitor - 12 - Operating Guide... -
Page 15: Enclosure
Installation Enclosure The BPD17 as standard is designed to be mounted on a wall or surface via the two holes located in the rear half of the enclosure. Alternatively, it can be mounted to a panel or a pipe using optional mounting kits. -
Page 16: Surface-Mounting
Care must be taken when fitting the instrument on uneven walls or surfaces. Once installed make sure accompanying IP protection plugs are installed over the mounting holes on the inside rear of the enclosure. BPD17 pH / Redox Monitor - 14 - Operating Guide... -
Page 17: Panel-Mounting
Attach the Mounting Plate to the rear of the case with the supplied screws. To pass instrument rear through panel cut out remove cable glands. Use the 4 supplied screw clamps to affix the instrument to the panel. BPD17 pH / Redox Monitor - 15 - Operating Guide... -
Page 18: Pipe-Mounting
Pass supplied mounting straps through plate loops and tighten round pipe as required. Fit the accompanying IP protection plugs over the internal mounting holes on the inside rear of the enclosure. BPD17 pH / Redox Monitor - 16 - Operating Guide... -
Page 19: Terminal Operation
Supply Voltage Connections Depending upon version purchased BPD17 can be powered from either 90-265V AC or 12- 30V DC supply voltage. Refer to the label adjacent to the power supply terminals for the input voltage limits. Exceeding these limits may damage the instrument. -
Page 20: Relay Connections
Installation Relay Connections The BPD17 is supplied with 2 normally open volt free relays designated 1 & 2, The relay contacts are connected to the terminals only and are electrically isolated from the instrument itself. They must be connected in series with a 5 Amp fuse. A contact arc suppressor may be required to prevent excessive electrical noise, depending upon the load. -
Page 21: Digital Inputs
Installation Digital Inputs The BPD17 features 2 digital inputs, which can be used to initiate a user configurable instrument operation by use of a volt free link, switch or relay. The instrument can be configured to initiate the appropriate action when the contact either closes or opens. -
Page 22: Installation And Choice Of Ph / Redox Electrodes
When a new pH electrode is first fitted or changed it must be calibrated (see page 32). Depending on the application it may also need periodic re-calibration, the BPD17 provides an inbuilt count down timer which will trigger an alarm when calibration interval has expired (see page 38). - Page 23 80°C, 3.8 Molar KCl solution for 30 minutes. Before allowing the electrode to cool in the same solution to promote flow of internal electrolyte through the liquid junction. BPD17 pH / Redox Monitor - 21 -...
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Page 24: Bpd17 Ph / Redox Input Connection Details
Installation BPD17 pH / Redox Input Connection Details pH / Redox LN10 Coax Cable Connection Details S400 ProcessProbe Cable Connection Details BPD17 pH / Redox Monitor - 22 - Operating Guide... - Page 25 / Redox 54E Extension Cable Connection Details The pH / Redox input of the BPD17 also provides a differential input method of wiring the pH electrode. This provides better electrical noise immunity and allows the sensor to operate in solutions where flowing electrical currents may cause measurement problems.
- Page 26 Installation S400 ProcessProbe Cable Connection Details with “Solution Ground” VP6 Detachable Cable Connection Details with “Solution Ground” BPD17 pH / Redox Monitor - 24 - Operating Guide...
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Page 27: Temperature Sensor Connections
Installation pH / Redox 54E Extension Cable Connection Details with “Solution Ground” Temperature Sensor Connections 2 Wire RTD Temperature 3 Wire RTD Temperature 4 Wire RTD Temperature Connection Connection Connection BPD17 pH / Redox Monitor - 25 - Operating Guide... -
Page 28: Extension Cable Connections
Installation Extension Cable Connections S400 ProcessProbe to 54E Extension Cable Connection Details VP6 Detachable Cable to 54E Extension Cable Connection Details BPD17 pH / Redox Monitor - 26 - Operating Guide... -
Page 29: User Interface
INSTALLATION OR IRREPARABLE DAMAGE TO THE INSTRUMENT. The BPD17 uses a 3¾” 240x128 dot LCD Module to display the primary reading and temperature, show operational status and to provide an intuitive user interface. This is accompanied by 5 control buttons whose function varies depending upon which screen the user is viewing. -
Page 30: Security Code Access
If the code is correct the padlock at the top of the screen will turn to a key and the unit will be unlocked / – Increase / Decrease Digit – Select Next Digit EXIT – Cancel – Enter Code BPD17 pH / Redox Monitor - 28 - Operating Guide... -
Page 31: Ph / Redox (Orp) Input Setup
When “Redox (mV)” is selected the instrument displays the unprocessed input voltage to the electrode terminals. / – Select Option – Cancel EXIT – Save Selection BPD17 pH / Redox Monitor - 29 - Operating Guide... -
Page 32: Temperature Compensation Mode
Enables showing the electrode’s raw mV input on the front screen in addition to the primary pH reading. Only Available when units set to pH. / – Select Option EXIT – Cancel – Save Selection BPD17 pH / Redox Monitor - 30 - Operating Guide... -
Page 33: Input Filtering (Averaging)
/ – Increase / Decrease Digit – Select Next Digit – Cancel EXIT – Use Entered Value BPD17 pH / Redox Monitor - 31 - Operating Guide... -
Page 34: Calibration
Buffer solutions should be prepared in accordance with the instructions supplied with them. The BPD17 offers two different but simple methods of calibration for pH electrode systems. Auto In Auto calibration the instrument requires that the electrode is first placed in a 4pH buffer and then secondly in a 9pH buffer. - Page 35 For calibration and test purposes, standard solutions at various potentials can be purchased from LTH Electronics: Part No. 138/175 124mV Redox Solution (500ml) Part No. 138/176 358mV Redox Solution (500ml) BPD17 pH / Redox Monitor - 33 - Operating Guide...
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Page 36: Calibration Menu
Useful for when commissioning or calibrating the instrument. When the instrument is placed in an off-line state “off-line” will appear on the front screen. / – Select Option EXIT – Cancel – Save Selection BPD17 pH / Redox Monitor - 34 - Operating Guide... - Page 37 Enter the pH Auto Calibration routine. Only available when calibration principle is set to auto. See page 41 for more details. / – Select Option – Return to Main Menu EXIT – Enter Option BPD17 pH / Redox Monitor - 35 - Operating Guide...
- Page 38 Only available when units set to pH in the channel setup menu. Cannot be edited. Changed by either using the pH manual slope calibration, or by the pH auto calibration. BPD17 pH / Redox Monitor - 36 - Operating Guide...
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Page 39: Sensor Condition
Calibration Sensor Condition The BPD17 is capable of analysing the result of the pH electrode offset and slope calibration and indicate to the user the condition the electrode is in. Good – The electrode is operating within set parameters. -
Page 40: Front Screen Calibration Access
The Next Cal Date will update to show the date of the next calibration alarm. / – Increase / Decrease Digit – Select Next Digit – Cancel EXIT – Save Value BPD17 pH / Redox Monitor - 38 - Operating Guide... -
Page 41: Custom Buffer Entry
Enters the custom buffer setup menu. Only available when the pH calibration principle is set to auto. / – Select Option – Return to Main Menu EXIT – Enter Option BPD17 pH / Redox Monitor - 39 - Operating Guide... - Page 42 – Return to Main Menu EXIT – Enter Option Reset Temperature Reset any user temperature calibration that may have been performed. / – Select Option – Return to Main Menu EXIT – Enter Option BPD17 pH / Redox Monitor - 40 - Operating Guide...
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Page 43: Auto Ph Sensor Calibration
To start the pH calibration, select the “pH Calibration” item from the calibration menu. / – Select Option EXIT – Return to Select Calibration Channel – Enter pH Auto Calibration BPD17 pH / Redox Monitor - 41 - Operating Guide... - Page 44 Upon completion of the buffer sampling the instrument will calculate the offset and slope for the attached electrode and indicate its condition. – Exit Calibration Without Saving EXIT – Save Calibration BPD17 pH / Redox Monitor - 42 - Operating Guide...
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Page 45: Manual Ph Sensor Calibration
It is recommended that the buffer should be adjusted at 7pH. / – Adjust the Reading Up or Down EXIT – Cancel – Save Calibration BPD17 pH / Redox Monitor - 43 - Operating Guide... -
Page 46: Buffer Solutions
SB-168-1610 138/200 7pH Buffer standard colour coded Clear, 500ml. SB-054-1610 138/201 9pH Buffer standard colour coded Blue, 500ml. SR-009-1610 138/175 124mV Redox solution. 500ml SR-022-1610 138/176 358mV Redox solution. 500ml BPD17 pH / Redox Monitor - 44 - Operating Guide... -
Page 47: Setpoints
Setpoints Setpoints The BPD17 is be fitted with two “Normally Open” setpoint relays designated Setpoint 1 and Setpoint 2. The Setpoint menu contains all of the necessary setup functions to configure the setpoint. The instrument indicates the status of the relay by means of a symbol on the front screen. - Page 48 Band The setpoint will activate when the sensor reading is either greater than the setpoint high level or less than the setpoint low level. BPD17 pH / Redox Monitor - 46 - Operating Guide...
- Page 49 If the input is still the same after the delay, then the setpoint will be energised. / – Increase / Decrease Digit – Select Next Digit EXIT – Cancel – Save Value BPD17 pH / Redox Monitor - 47 - Operating Guide...
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Page 50: Hysteresis
High, Low or Band. / – Increase / Decrease Digit Setpoint Trigger: Low – Hysteresis – Select Next Digit EXIT – Cancel – Save Value BPD17 pH / Redox Monitor - 48 - Operating Guide... -
Page 51: Setpoint Dose Alarm
– Clear Setpoint 1 Dose Alarm ACK 1 ACK 2 – Clear Setpoint 2 Dose Alarm – Access Main Menu Menu BPD17 pH / Redox Monitor - 49 - Operating Guide... - Page 52 – Save Selection Start Initial Charge The user can also start the initial charge via this option in the setpoint menu. / – Select Option EXIT – Cancel – Save Selection BPD17 pH / Redox Monitor - 50 - Operating Guide...
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Page 53: Setpoint Cleaning Mode
– Cancel EXIT – Save Value Clean Interval Enter the time between cleaning operations. / – Increase / Decrease Digit – Select Next Digit – Cancel EXIT – Save Value BPD17 pH / Redox Monitor - 51 - Operating Guide... - Page 54 / – Select Option EXIT – Cancel – Save Selection Manual Clean This manually starts a clean cycle. / – Select Option – Cancel EXIT – Save Selection BPD17 pH / Redox Monitor - 52 - Operating Guide...
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Page 55: 0/4-20Ma Output
0/4-20mA Output 0/4-20mA Output The BPD17 is fitted with a single current output. The current output menu contains all of the necessary setup functions to configure the current output sources. The instrument will display the status of the current output on the front screen, where --.--mA indicates that the output is disabled. -
Page 56: On Error
/ – Select Option – Cancel EXIT – Save Selection Calibration Enter Menu to calibrate the 0/4-20mA / – Select Option EXIT – Return to Main Menu – Enter Option BPD17 pH / Redox Monitor - 54 - Operating Guide... - Page 57 EXIT – Save Adjustment Reset Calibration Used to reset any user calibration applied to the 0/4- 20mA Output / – Select Option – Return to Calibration EXIT – Enter Option BPD17 pH / Redox Monitor - 55 - Operating Guide...
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Page 58: Digital Inputs
Digital Inputs Digital Inputs The BPD17 is fitted with two digital inputs designated A and B. The digital input menu contains all of the necessary setup functions to configure the digital input sources. These inputs are intended to be switched using a volt free link, switch or relay. The user can select whether closing or opening the contact initiates the configured action. -
Page 59: Polarity
Polarity Configure whether the digital input activates on the closing of circuit (normal) or the opening of the circuit (reverse). / – Select Option – Cancel EXIT – Save Selection BPD17 pH / Redox Monitor - 57 - Operating Guide... -
Page 60: Configuration
– Save Selection Set Time/Date Sets the instruments time and date. / – Increase / Decrease Digit / Item – Select Next Digit / Item EXIT – Cancel – Save Time BPD17 pH / Redox Monitor - 58 - Operating Guide... -
Page 61: Unit Flash On Error
– Return to Configuration Menu EXIT – Enter Option Software Version Displays the instrument’s current software version number. / – Select Option EXIT – Return to Main Menu – Enter Option BPD17 pH / Redox Monitor - 59 - Operating Guide... -
Page 62: Serial Number
– Select Option – Return to Main Menu EXIT – Enter Option Contact Information Display the contact information. / – Select Option EXIT – Return to Main Menu – Enter Option BPD17 pH / Redox Monitor - 60 - Operating Guide... -
Page 63: Update Software
Configuration Update Software The BPD17 operating software can be upgraded by saving the latest version from LTH onto a micro SD card, inserting it into the instrument and following the instructions below. All three files must be present on the SD card for the update to work. The instrument supports SDHC and SDXC cards;... -
Page 64: Save, Restore & Reset
Save, Restore & Reset Save, Restore & Reset The BPD17 features the ability to save and restore the current configuration of the channel, setpoints, current outputs, and digital inputs. The save and restore menu also features the ability to reset the whole instrument back to its factory settings. - Page 65 Save the current instrument setup. Restore Setup Restore the previously saved setup. Delete Setup Delete the previously saved setup. Default Instrument Reset the whole instrument back to its factory settings. BPD17 pH / Redox Monitor - 63 - Operating Guide...
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Page 66: Service
Service Service The BPD17 features a service reminder system that will inform the user when the instrument is due its service. Service Alarm Service alarm configuration: Service Reminder – Turn the service alarm on or off. Requires service security code prior to use. -
Page 67: Appendix A - Temperature Data
Temperature PT1000 PT100 ( C ) 1000.0 100.00 1039.0 103.90 1077.9 107.79 1097.3 109.73 1116.7 111.67 1155.4 115.54 1194.0 119.40 1232.4 123.24 1270.7 127.07 1308.9 130.89 1347.0 134.70 1385.0 138.50 BPD17 pH / Redox Monitor - 65 - Operating Guide... -
Page 68: Appendix B - Error Messages
Temperature Under Range The temperature reading is less than the specified lower limit, check channel settings, Sensor condition and connections. If the message persists please consult with your supplier. BPD17 pH / Redox Monitor - 66 - Operating Guide... - Page 69 NB. LTH overseas users should contact their LTH distributor – See www.lth.co.uk for details. Calibration Due The time since the last calibration was performed has exceeded the time set in the calibration menu. BPD17 pH / Redox Monitor - 67 - Operating Guide...
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Page 70: Fault Finding
NOTE: THERE ARE NO USER SERVICEABLE PARTS INSIDE THE UNIT The BPD17 has been designed to include a wide range of self-diagnostic test, some of which are performed at switch on, and some on a continuous basis. This guide aims to provide a route to diagnosing and correcting any faults that may occur during normal operation. -
Page 71: Problems With Cables And Connectors
Particular attention must be paid to the method of extending the pH electrode cable. A general rule would be the fewer connections there are, the less problems are likely to occur. BPD17 pH / Redox Monitor - 69 -... -
Page 72: Guarantee And Service
All sensors made by LTH Electronics Ltd are thoroughly tested to their published specification before despatch. As LTH have no control over the conditions in which their sensors are used, no further guarantee is given, although any complaints concerning their operation will be carefully investigated. - Page 74 Chaul End Lane Luton Bedfordshire LU4 8EZ United Kingdom Telephone: +44 (0) 1582 593693 Fax: +44 (0) 1582 598036 Email: sales@lth.co.uk Web: www.lth.co.uk...
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