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Hach SP-510 Instrument Manual

Hardness monitor
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Cat. No. 54100-18
SP-510™
HARDNESS MONITOR
INSTRUMENT MANUAL

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  • Page 1 Cat. No. 54100-18 SP-510™ HARDNESS MONITOR INSTRUMENT MANUAL...
  • Page 2 CAT. NO. 54100-18 SP-510™ HARDNESS MONITOR INSTRUMENT MANUAL © Hach Company, 1999. All rights reserved. Printed in the U.S.A. dd/dp 7/99 1ed Rev. 1, 10/99...
  • Page 3 TRADEMARKS OF HACH COMPANY...

  • Page 4: Table Of Contents

    TABLE OF CONTENTS CERTIFICATION................................5 SAFETY PRECAUTIONS .............................. 7 SPECIFICATIONS ................................9 SECTION 1 GENERAL INFORMATION ......................13 1.1 Instrument Description............................. 13 1.2 Principle of Operation .............................. 14 INSTALLATION ............................... 15 SECTION 2 INSTALLATION ..........................17 2.1 Instrument Environmental Considerations....................... 17 2.2 Unpacking the Instrument ............................
  • Page 5 TABLE OF CONTENTS, continued SECTION 4 OPERATION ............................39 4.1 Instrument Operation ..............................39 MAINTENANCE ............................... 41 SECTION 5 MAINTENANCE ..........................43 5.1 Scheduled Maintenance ............................43 5.1.1 Replenishing the Reagents ..........................43 5.1.2 Replacing the Pump Tubes..........................43 5.1.3 Tubing Replacement ............................44 5.2 Unscheduled Maintenance............................

  • Page 6: Certification

    Hach Company certifies this instrument was tested thoroughly, inspected, and found to meet its published specifications when it was shipped from the factory. The SP-510™ Hardness Monitor has been tested and is certified as indicated to the following instrumentation standards: Product Safety The SP-510™...
  • Page 7 1. Disconnect the SP-510™ Harness Monitor from its power source to verify that it is or is not the source of the interference. 2. If the SP-510™ Harness Monitor is connected into the same outlet as the device with which it is interfering, try another outlet.

  • Page 8: Safety Precautions

    SAFETY PRECAUTIONS This symbol, if noted on the product, indicates the need for protective eye wear. Section 2.1 Instrument Environmental Considerations on page 17 Section 2.4 Plumbing Connections on page 21 Section 2.6 Optional Air Purge on page 23 Section 2.8 Electrical Connections on page 26 Section 2.8.1 Power Connections on page 26 Section 2.8.2 Wiring the Instrument on page 28 Section 2.8.3 Voltage Selection for Alternate Voltage Operation on...
  • Page 9 SAFETY PRECAUTIONS, continued Section 5.1 Scheduled Maintenance on page 43 Section 5.2 Unscheduled Maintenance on page 46 Section 5.2.2 Fuse Replacement on page 46...

  • Page 10: Specifications

    SPECIFICATIONS GENERAL SPECIFICATIONS Hard/Soft Display: Two LEDS with one indicating hard water and the second one indicating soft water Time Delay: A soft-to-hard water alarm transition requires two successive readings above the trip point. A hard-to-soft water alarm clearing transition requires one reading below the trip point.
  • Page 11 SPECIFICATIONS, continued PERFORMANCE SPECIFICATIONS Nominal Alarm Point Minimum Trip Value Maximum Trip Value 1 mg/L 0.75 mg/L 1.25 mg/L 2 mg/L 1.5 mg/L 2.5 mg/L 5 mg/L 3.75 mg/L 6.25 mg/L 10 mg/L 7.5 mg/L 12.5 mg/L 20 mg/L 15.0 mg/L 25.0 mg/L 50 mg/L 37.5 mg/L...
  • Page 12 SPECIFICATIONS, continued OPTICAL SPECIFICATIONS Light Source: Class 1 LED (Light Emitting Diode) with peak wavelength of 610 nm. Estimated 50,000 hours minimum life. Detector: Silicon photo detector Optical Path Length: 0.35" MECHANICAL SPECIFICATIONS Enclosure: Environmental Rating IP62 Dimensions: Approximately 42 x 31.5 x 18 cm (16.5 x 12.5 x 7") (refer to the transmittal drawing for exact space requirements).

  • Page 14: Section 1 General Information

    SECTION 1 GENERAL INFORMATION 1.1 Instrument Description The Model SP-510™ Hardness Monitor is designed to monitor water softener effluents continuously to detect hardness breakthrough due to softener exhaustion. It enables commercial and industrial water softener operators to establish automatic control of their systems by initiating regeneration sequences with the instrument's alarm circuit.

  • Page 15: Principle Of Operation

    SECTION 1, continued 1.2 Principle of Operation The Hardness Monitor uses a buffered colorimetric hardness indicator solution that is mixed with the water sample as it flows through the instrument. While in the colorimeter sample cell, light is transmitted through the solution to a detector, which provides the colorimetric measurement.

  • Page 16: Installation

    Certaines tâches dans ce chapitre du mode d'emploi peuvent causer des blessures aux personnes et endommager le matériel si les consignes de sécurité ne sont pas suivies. Hach Company recommande vivement que l'installation soit faite par du personnel qualifié et que toutes les personnes effectuant l'installation lisent attentivement ces instructions.

  • Page 18: Instrument Environmental Considerations

    If damage is evident or the shipment is incomplete, please contact the Customer Service Department, Hach Company, Loveland, Colorado for instructions. The toll-free number is 800-227-4224. Contents of the Installation and Maintenance kits are listed in Replacement Parts.

  • Page 19: Wall Mounting The Instrument

    Mount the instrument as close to the sampling point as practical to ensure complete purging of the sample line each cycle. Leave adequate clearance at the sides and bottom of the instrument case for plumbing and wiring connections. Figure 2 SP-510 Instrument Dimensions (1 of 3)
  • Page 20 SECTION 2, continued Figure 3 SP-510 Instrument Dimensions (2 of 3)
  • Page 21 SECTION 2, continued Figure 4 SP-510 Instrument Dimensions (3 of 3)

  • Page 22: Plumbing Connections

    SECTION 2, continued Plumbing Connections Sample inlet and drain connections are made on the bottom of the instrument. The sample connection is a quick connect fitting for ¼-inch OD tubing. Connect the ¼-inch O.D. poly tubing by pushing it into the fitting. Two distinct “stops” will be felt as the tubing is correctly attached.

  • Page 23: Installing The Sample Line

    SECTION 2, continued Figure 5 Plumbing Connections 2.5 Installing the Sample Line Selecting a good, representative sampling point is important for optimum performance from your hardness monitor. The sample analyzed must be representative of the condition of the entire system. If sample is drawn from a location too close to points of chemical additions to the process stream, inadequate mixing or an incomplete reaction can result in erratic readings from the instrument.

  • Page 24: Optional Air Purge

    SECTION 2, continued Optional Air Purge Air purge may be necessary if the analyzer is located in an environment with high humidity and/or caustic vapors. The goal is to maintain a slight positive pressure in the instrument with dry instrument air. The air purge connection is located on the left side of the instrument enclosure.

  • Page 25: Using The Sample Conditioning Kit

    SECTION 2, continued 2.7.2 Using the Sample Conditioning Kit Assemble the head height regulator (stand-pipe) and filter as shown in Figure 7. Make sure sample pressure to the sample conditioning is in the 1.5 to 75-psig range for proper operation. Refer to Section 2.7 for sample conditioning information.
  • Page 26 SECTION 2, continued Figure 7 Sample Conditioning Kit...

  • Page 27: Electrical Connections

    See Figure 10. For process or industrial applications, the national electrical codes of most countries require that AC service feeds be hard-wired and contained in conduit systems. The SP-510™ Hardness Monitor has been designed to conform to this requirement.
  • Page 28 SECTION 2, continued Figure 9 Locating and Removing the Customer Access Cover Hach recommends conduit for two reasons: 1. It is generally required by most local electrical codes, and Note: If power cords are allowed by local electrical code, a 125V UL/CSA approved power cord with 2.

  • Page 29: Wiring The Instrument

    SECTION 2, continued 2.8.2 Wiring the Instrument Connect the unpowered wires to the instrument power terminal as follows: 1. Strip the outside insulation of each wire back ¼-inch. 2. Connect the three wires to the terminal using the information in the following table.

  • Page 30: Alarm Connections

    SECTION 2, continued Figure 11 Voltage Selector Switch and Fuse Replacement 2.8.4 Alarm Connections The alarm set points are governed by the reagents used in the instrument. Refer to Section 3.2 on page 35 to select the appropriate buffer and indicator reagents. The alarm relay contacts are connected to the terminal strip in the customer wiring Note: Current to the relay contacts must be limited to 5 amps.
  • Page 31 SECTION 2, continued Figure 12 Proper Wire Preparation and Insertion Figure 13 Alarm Connections...

  • Page 32: Installing Pump/Valve Pinch Plate

    SECTION 2, continued 2.9 Installing Pump/Valve Pinch Plate To eliminate the effects of constant pressure on the pump tubes during shipment and storage, the pinch plate and screws for the pump/valve module are shipped in the accessory kit and the pump tubes are held in place with tape. Reagent flow through the pump/valve module must be from bottom to top.
  • Page 33 SECTION 2, continued Figure 15 Installing Pump/Valve Module Pinch Plate...

  • Page 34: Start Up

    START UP DANGER Handling chemical samples, standards, and reagents can be dangerous. Review the necessary Material Safety Data Sheets and become familiar with all safety procedures before handling any chemicals. DANGER La manipulation des échantillons chimiques, étalons et réactifs peut être dangereuse. Lire les Fiches de Données de Sécurité...

  • Page 36: Section 3 Starting The Instrument

    SECTION 3 STARTING THE INSTRUMENT CAUTION: PRUDENCE The chemicals used in this Los productos químicos utilizados en este procedimiento pueden ser peligrosos si se procedure may be hazardous if manejan inadecuadamente o se emplean mal accidentalmente. Tenga a bien leer todas inappropriately handled or las advertencias en las etiquetas de los reactivos.

  • Page 37: Priming The Reagents (Optional)

    SECTION 3, continued 3.2.1 Priming the Reagents (optional) Priming the reagents is an optional procedure that can reduce the start up time to 15 minutes. Proceed as follows: 1. Turn off the sample flow to the instrument. 2. Disconnect the reagent feed line after the “Y” fitting at the colorimeter. 3.

  • Page 38: Supplying Sample

    SECTION 3, continued Figure 16 Installing the Stir Bar 3.4 Supplying Sample Start sample flow through the instrument by opening the supply valve. Allow the pressure in the tubing to stabilize and check for leaks. Until the surface of the sample cell becomes completely wetted, bubbles may Note: Priming reagents can reduce start-up time, see Section 3.2.1.

  • Page 39: Two-Point Standardization

    SECTION 3, continued 3.6 Two-point Standardization Perform standardization after reagent installation or when an optical system component has been replaced. The standardization method first treats the sample to make it hard then treats it to become soft. It is performed as follows: 1.

  • Page 40: Section 4 Operation

    SECTION 4 OPERATION 4.1 Instrument Operation After the instrument is installed on line, the only operator requirements are replenishing buffer and indicator reagents (at approximately two-month intervals) and standardizing the instrument. The instrument is designed to function operator- free for a minimum of two months. Periodically run a visual check to become aware of any problems such as bubbles in the tubing that would indicate an air leak.

  • Page 42: Maintenance

    Certaines tâches dans ce chapitre du mode d'emploi peuvent causer des blessures aux personnes et endommager le matériel si les consignes de sécurité ne sont pas suivies. Hach Company recommande vivement que l'Entretien soit faite par du personnel qualifié et que toutes les personnes effectuant l'Entretien lisent attentivement ces instructions.

  • Page 44: Scheduled Maintenance

    SECTION 5 MAINTENANCE CAUTION: PRUDENCE The chemicals used in this Los productos químicos utilizados en este procedimiento pueden ser peligrosos si se procedure may be hazardous if manejan inadecuadamente o se emplean mal accidentalmente. Tenga a bien leer todas inappropriately handled or las advertencias en las etiquetas de los reactivos.

  • Page 45: Tubing Replacement

    SECTION 5, continued 4. Cut two 2-inch lengths of 1/16” ID tubing (white) and two 2-inch lengths of 0.043" ID tubing (brown). Install one 1/16 to 1/8 barb elbow fittings in one of the 1/16" ID tubes (white) and 1/16” barb union fittings in the three remaining tubes.
  • Page 46 SECTION 5, continued Figure 17 Plumbing Diagram Table 20 Replacement Tubing Lengths for Figure 17 Item Description Length (Qty) From... To... Catalog Number 1/8" ID, 1/4" OD 4.5 inches (1) Pump Body Out Colorimeter 43293-00 1/32" ID, 3/32" OD 7.5 inches (2) Pump Body Out Y-Fitting 44253-00...

  • Page 47: Unscheduled Maintenance

    SECTION 5, continued Unscheduled Maintenance 5.2.1 Changing Instrument Alarm Point Changing the instrument to alarm at a different hardness level is accomplished by installing the appropriate buffer and indicator solutions, see Section 3.2 on page 35. Following installation of the appropriate reagents, allow the instrument to run for two hours to purge the old reagents.

  • Page 48: Cleaning The Instrument Enclosure

    SECTION 5, continued 5.2.3 Cleaning the Instrument Enclosure With the enclosure securely latched, use a soft cloth and a mild detergent to wipe the outside of the enclosure. Do not allow moisture to enter the enclosure. 5.2.4 Replacing the Sample Conditioning Filter To insert the filter into the housing: 1.

  • Page 50: Section 6 Troubleshooting

    In the event the instrument should malfunction, the following troubleshooting guide may be used to help isolate the problem. Please contact the nearest Hach Service Center for assistance or shipping instructions if the instrument should be returned. Table 21 supplies troubleshooting information for the instrument. After determining the symptom and probable cause, perform the corrective action steps in the order given.

  • Page 52: General Information

    GENERAL INFORMATION At Hach Company, customer service is an important part of every product we make. With that in mind, we have compiled the following information for your convenience.

  • Page 54: Replacement Items

    REPLACEMENT ITEMS REPLACEMENT PARTS AND REAGENTS Description Unit Cat. No. Maintenance Kit .......................... each....55165-00 Installation Kit..........................each....55164-00 Buffer 1, 2, 5 .......................... 500 mL....27685-49 Buffer 10 ..........................500 mL....27686-49 Buffer 20 ..........................500 mL....27687-49 Buffer 50 ..........................500 mL....27688-49 Buffer 100 ..........................

  • Page 55: How To Order

    HOW TO ORDER...

  • Page 56: Repair Service

    REPAIR SERVICE...

  • Page 57: Warranty

    WARRANTY Hach warrants most products against defective materials or workmanship for at least one year from the date of shipment; longer warranties may apply to some items.

  • Page 58: Index

    INDEX Accessories ..............53 Operation ............14 Air purge ..............23 Ordering Information ..........54 Alarm connections ............29 Points ..............13 particles setpoints ..............29 eliminating ............23 Plumbing connections ............21 Certification ..............5 drain connections ..........21 Cleaning sample inlet connections ........21 instrument enclosure ...........47 Plumbing diagram ............
  • Page 59 INDEX, continued Sample Line Installation ............22 Troubleshooting ............49 Specifications ............11 Tubing Electrical ............10 replacement ............44 Environmental ............ 10 replacement lengths ..........45 General ..............9 Hydraulic (Sampling) ......... 11 Optical ..............11 Unpacking ..............17 Performance ............10 Standardization ............38 Stir Bar illustration ............
  • Page 61 Telephone: (970) 669-3050 FAX: (970) 669-2932 FOR TECHNICAL ASSISTANCE, PRICE INFORMATION AND ORDERING: In the U.S.A. - Call toll-free 800-227-4224 Outside the U.S.A. - Contact the HACH office or distributor serving you. On the Worldwide Web - www.hach.com ; E-mail - techhelp@hach.com...

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