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Watts HF scientific 28052 Owner'S And User'S Manual Download Page 25

 

 

Catalog No. 29290 

 

18 

Rev 3  06/2020    

 

3.4.3  Closing the Junction Box.   

  

Maintain watertight seal.  Always make sure that the Junction 

Box cover is firmly in place and securely  closed.  Water 

infiltration can create electric shock/electrocution hazard and 

will damage equipment.   

•

  Securely close the Junction Box by replacing the cover and all four 

cover screws.

 

 
 
 

 

 
 

 

 

 
 
 
 
 
 
 

 

Figure 5: Electrical Connections for the MTOL+ 

--------------------------------------------------- 

 

Figure 6: Electrical Connections on Terminal Block (P1)

 

 

 

Power Connection 

Terminal Block (P1) 

Alarm & I/O Connections 

Summary of Contents for HF scientific 28052

Page 1: ...13 Phone 239 337 2116 Fax 239 454 0694 Toll free 888 203 7248 E Mail HF Info WattsWater com Website HFscientific com Read Manual and all product labels BEFORE using the equipment Do not use unless you know the safe and proper operation of this equipment Keep this Manual available for easy access by all users Replacement Manuals are available at HFscientific com ...

Page 2: ...Catalog No 29290 Rev 3 06 2020 ...

Page 3: ...anufacturer s Name HF scientific inc Manufacturer s Address 16260 Airport Park Drive Suite 140 Fort Myers Florida 33913 Importer s Name Importer s Address Type of Equipment Process Turbidimeter Model Name MTOL TM Model No Model 28052 Infrared Model 28053 White Light I the undersigned hereby declare that the equipment specified above conforms to the above Directives and Standards Place Fort Myers F...

Page 4: ... user Owners should not permit anyone to touch this equipment unless they are over 18 years of age are adequately trained and supervised and have read and understood this manual Owners should also ensure that no unauthorized personnel comes in contact with this equipment If this equipment or any of its parts becomes damaged or needs repair stop using the equipment and contact an experienced servic...

Page 5: ...Catalog No 29290 Rev 3 06 2020 ...

Page 6: ...3 4 1 Electrical Power Connection 15 3 4 2 Terminal Block P1 Connections 16 3 4 3 Closing the Junction Box 18 4 0 Setup Configuration and Calibration 19 4 1 Modes of Operation 19 4 2 Configuring the MTOL 22 4 2 1 Configuring the 4 20 mA Output 22 4 2 2 Baud Rate 24 4 2 3 Modbus Address 24 4 2 4 Configuring the Alarms 25 4 2 4 1 Configuring Alarm 1 26 4 2 4 2 Configuring Alarm 2 27 4 2 5 Offset 28 ...

Page 7: ...stalling the Desiccant Pouch 46 5 2 Starting the System 47 5 3 Routine Measurement AUTO mode 48 5 4 Data Retrieval 48 5 4 1 USB Connection 48 5 4 2 File Downloads 49 5 4 3 Modbus Communication 49 5 5 Patented Ultrasonic Cleaning 50 5 6 Condensate on the Cuvette 50 5 7 Cleaning the Flow through Cuvette 52 5 8 Replacing the Source Lamp 53 5 9 Factory Installed 24V Option 53 6 0 Troubleshooting 54 6 ...

Page 8: ... you to hazards When you see this symbol alone or with a signal word on this instrument or in this Manual be alert to the potential for death or serious personal injury Safety signal words have the following meaning Identifies hazards which if not avoided will result in death or serious injury Identifies hazards which if not avoided could result in death or serious injury Identifies hazards which ...

Page 9: ...adeable via USB flash drive Maximum Water Pressure Integral pressure regulator rated 7 bar 101 5 PSI Flow Rate 100 ml min 1 5 liter min 026 40 Gal min Operating Temperature 1 C 50 C 34 F 122 F Wetted Materials Nylon Borosilicate Glass Silicone Polypropylene Stainless Steel Viton Acetyl Sample Temperature 1 C 50 C 34 F 122 F Power Supply 100 240 VAC 47 63 Hz 80VA Insulation Rating Double Insulated ...

Page 10: ...2 was designed to meet the design criteria specified in ISO 7027 and DIN 27027 for the measurement of the turbidity of a sample Both models have long life lamps All models have ultrasonic cleaning Refer to section 5 5 for more information A pressure regulator on the incoming line is a standard on all MTOL instruments and will reduce pressures up to 7 bar 101 5 PSI down to 1 03 bar 15 PSI The MTOL ...

Page 11: ...he use of access code and offset mode In addition mode arrows are used to indicate the current instrument operating mode AUTO normal operation CAL calibration and CONFIG configuration Figure 1 Display used in the instrument All items used on the display are shown in this figure 1 3 The Touchpad Figure 2 illustrates the touchpad The touchpad has five buttons arranged in a star pattern with a center...

Page 12: ...siccant Pouch The MTOL creates its own internal environment In this controlled environment condensation cannot form The cuvette is essentially bathed in warm dry air 2 0 Unpacking and Inspection The table below indicates the items in the turbidimeter shipment Item Quantity MTOL Turbidimeter with Flow Through Assembly 1 Field Terminal Box with Interconnect cable 1 Owner s and User s Manual 1 Desicc...

Page 13: ...omplying with all local state federal and other governmental requirements and with all building and construction codes and standards MTOL is electrically powered ALWAYS take proper precautions to recognize evaluate and control electrical hazards during installation programming use and service maintenance Use ONLY with water free of corrosive chemicals or other hazardous substances ALWAYS leak chec...

Page 14: ...nting MTOL with the front display positioned at eye level 1 4 to 2 meters approximately 4 5 to 6 5 feet from the floor MTOL is designed to have the Junction Box cradled under the upper portion of the instrument Select a site with enough space for proper configuration when mounted 3 2 Mounting Described is for installation to a concrete surface If needed contact HF scientific for instruction to ins...

Page 15: ...de insert wall anchors for each mounting position 5 Mount the Junction Box First The MTOL is designed to have the Junction Box cradled under the upper portion of the instrument containing the keypad and display a Position the Junction Box of the MTOL to match the 2 lower wall anchors b Mount the Junction Box first by inserting the M4 8 screws through the 2 inside the Junction Box Use wall anchors ...

Page 16: ...face that can support the product s weight 5 kg 10lbs 20 cm 8 in free area above the instrument allowing room for calibration and cuvette maintenance The front display should be positioned at eye level or a suitable level to read and reach controls approximately 1 4 Meters 4 5 feet to 2 meters 6 5 feet from the floor Confirm that the unit is level Figure 3 Mounting Dimensions of the Instrument Tur...

Page 17: ...ubes must be connected to the MTOL before the system is connected to the sample water source and drain 1 Identify the IN tube This is the tube with the white ratcheting clamp 2 Install the IN tube between the sensor mounting earmarked IN and the flow head connection marked IN Secure both ends tightly 3 Identify the OUT tube This is the tube with the rotary backpressure valve 4 Install the OUT tube...

Page 18: ...r shutting off the intake flow during cuvette maintenance Press down to restrict water flow DRAIN TUBING CONNECTION Use OD tubing with supplied push to connect fitting Do not reintroduce drain sample back into the process stream PRESSURE REGULATOR The integral pressure regulator is rated for a maximum pressure of 7 bar 101 5 PSI The maximum allowable fluid temperature is 50 C 122 F Figure 4 Instru...

Page 19: ...ng side of the MTOL as shown in Figure 4 f Check to confirm that tube is pushed fully against the tube stop Gently but firmly pull on the tube to check that it is secure g Connect the other end of the tube to a suitable sanitary drain or trench following proper plumbing techniques applicable to your facility and configuration 3 3 4 Connecting the water intake a Use MTOL ONLY with water Connect wat...

Page 20: ... fitting on the left facing side of the MTOL as shown in Figure 4 f Check to confirm that tube is pushed fully against the tube stop Gently but firmly pull on the tube to check that it is secure g Connect the other end of the tube to the water sample source following proper plumbing techniques applicable to your facility and configuration After completing water inlet and drain connections check al...

Page 21: ...ts The MTOL is equipped with a 100 240 VAC 47 63 Hz switching power supply BEFORE installing verify that the line voltage falls within these specifications A breaker or method of disconnecting power must be placed within 2 meters 6 feet of the MTOL While making connections refer to Figure 5 The MTOL is not supplied with a power cord All of the electrical connections to the instrument are made thro...

Page 22: ...utions to recognize evaluate and control electrical hazards a First make sure that MTOL is completely de energized and disconnected from all power b Perform required LOCK OUT TAG OUT of electrical power c Confirm that a breaker or method of disconnecting power is located within 2 meters 6 feet of the MTOL d All of the electrical connections to the instrument are made through the MTOL Junction Box ...

Page 23: ...g loaded connections To open the connection insert a 3mm 1 8 in flat blade screwdriver into the slot right above the electrical connection Pulling up slightly on the screwdriver opens the terminal block connection Removing the screwdriver tightens the connection There are two stacked rows of connections which are labeled on the PCB The alarm connections are on the upper row The RS 485 and 4 20mA a...

Page 24: ...king connections to present damage to the instrument Connections are labeled beneath the large terminal block These connections are on the left side on the lower row c 4 20 mA Connection Make sure the MTOL is disconnected and not powered BEFORE connecting the 4 20 mA The 4 20 mA output is driven by a 24 VDC power source and can drive recorder loads up to 1000 ohms This 4 20 mA output is isolated f...

Page 25: ...ace and securely closed Water infiltration can create electric shock electrocution hazard and will damage equipment Securely close the Junction Box by replacing the cover and all four cover screws Figure 5 Electrical Connections for the MTOL Figure 6 Electrical Connections on Terminal Block P1 Power Connection Terminal Block P1 Alarm I O Connections ...

Page 26: ...ly reported in Nephelometric Turbidity Units NTU but may be reported in Formazine Nephelometric Units FNU Readings above 100 NTU are outside the pre configured range of this instrument Readings above 110 NTU will cause the display to flash indicating an over range condition For a unit calibrated in the 0 10 NTU Range Readings above 10 NTU are outside range of this instrument Readings above 11 NTU ...

Page 27: ... points To exit the CAL mode start a calibration point after the countdown starts press or When the screen shows ABRT press the button Relay contacts and the 4 20mA will be frozen held at the current state while the instrument is in the calibration mode While in the calibration mode the instrument has a time out feature that automatically returns the system operation to the AUTO mode after a fifte...

Page 28: ...held at the current state while the instrument is in the configuration mode While in the configuration mode the instrument has a time out feature that automatically returns the system operation to the AUTO mode after a fifteen 15 minute period Shown below is a Flow Chart depicting the options under the configuration operation Figure 6 MTOL Flow Chart ...

Page 29: ...de 4 2 Configuring the MTOL The MTOL has been designed to provide the ability to customize the instrument according to needs at any time during normal operation The CONFIG mode has been split into sub menus to facilitate instrument configuration This section describes how to use each of the sub menus to configure the instrument In the sections below each sub menu under the CONFIG mode is discussed...

Page 30: ...A is enabled If disabled skip down to 4 2 2 This will be the first menu shown unless the options flow switch was ordered Use the or buttons to select whether the 4 20mA will be On or OFF Press the button to accept the setting and move to the next menu or the button to exit and return to AUTO Setting 4mA Setting the 4mA The first prompt will be the turbidity limit assigned to the 4mA output level S...

Page 31: ...e Error Level enter the CONFIG mode by pressing the and buttons until the arrow beside CONFIG is illuminated then press the button Press the button to move to the next menu until ERLV is displayed Select the desired ERLV by using the and buttons then press the button to accept the setting and move to the next menu or the button to exit and return to AUTO 4 2 2 Baud Rate Selecting the RS 485 Baud R...

Page 32: ...elays are provided that are designed to operate as two independent programmable alarms Three types of information must be input to fully program each alarm a The alarm function HI LO OFF or Error b The alarm set point the level at which the alarm activates c The delay time for the alarm The time that the setpoint must be exceeded prior to an alarm activation and the time before resetting the alarm...

Page 33: ...alarm Delay Off The turbidity level must not exceed the alarm set point continuously for at least this number of seconds prior to deactivation of the alarm If the delay off time is set to 5 seconds and the process has exited out of the alarm condition the alarm will be reset only if the process is out of the alarm condition for a continuous 5 seconds Otherwise the instrument will still signal an a...

Page 34: ...time has been set press the button to accept it and move to the next menu 2 Delay Off Next the following display will appear to select the number of seconds currently set for the delay off time The currently selected number of seconds will be shown Select the desired delay off time for this alarm using the and buttons Once the desired delay time has been set press the button to accept it and move ...

Page 35: ...on to accept the setting and move to the next menu or the button to exit and return to AUTO 4 2 6 Access Code Setting Security The MTOL is equipped with a security access feature that can be activated If this option is turned ON the user is required to input an access code into the instrument to get to any mode other than AUTO A three digit code is used HF Scientific highly recommends the use of a...

Page 36: ...de was set On from the AUTO press or The next screen will allow entering the three digit code into the instrument The security code is entered one digit at a time using the or to select the digit and to advance to the next digit Accept the code by pressing the button 4 2 7 Signal Averaging Setting Speed of Response The averaging can be used to smooth out the response to spikes or unstable readings...

Page 37: ...djust the resolution to hide these insignificant digits To change the Resolution Enter the CONFIG mode by pressing the or buttons until the arrow beside CONFIG is illuminated then press the button Press the button to move to the next menu until RES is displayed then press the button Change the resolution by pressing the or button When the desired digit resolution has been selected press the button...

Page 38: ...n display in FNU Formazine Nephelometric Units All instruments are shipped from the factory set in NTU mode Setting Changing Units Enter the CONFIG mode by pressing the and buttons until the arrow beside CONFIG is illuminated then press the button Press the button to move to the next menu until UNIT is displayed Use the or buttons to select the setting NTU or FNU Press the button to accept it and ...

Page 39: ... the arrow beside CONFIG is illuminated then press the button Press the button to move to the next menu until PRTY is displayed Make selections using the and buttons Press the button to accept it and move to the setting STOP Modbus Stop Bits Setting the Modbus Stop Bits Enter the CONFIG mode by pressing the and buttons until the arrow beside CONFIG is illuminated then press the button Press the bu...

Page 40: ...s illuminated then press the button Press the button to move to the next menu until 4MA is displayed Adjust setting using the and buttons Press the button when adjustments are complete to save this setting and move on to the 20mA adjustment 20mA Adjustment This menu operates similarly to the previous menu This menu outputs a constant 20 mA while allowing for a small amount of adjustment The adjust...

Page 41: ... next menu until ID is displayed Use the and buttons to select the value of the first number Use the to select the next number and repeat the process for all numbers Scroll through the numbers to the next menu 4 2 15 Logging Interval Setting the interval for logged files This menu determines how often readings are logged The setting is in minutes This can be set from 1 minute to 60 minutes Setting...

Page 42: ... button Press the button to move to the next menu until DOWN is displayed The selection can be adjusted by using the and buttons Once the selection is made press the button to accept it and move to the next menu or the button to exit and return to AUTO 4 2 17 Date and Time Setting of Instrument Time Date The MTOL has a displayed date month day year and time hour minute Daylight Savings that must b...

Page 43: ...nter the CONFIG mode by pressing the and buttons until the arrow beside CONFIG is illuminated then press the button Press the button to move to the next menu until YEAR is displayed then press the button Change the year by pressing the or button When the desired year has been selected press the button to accept it and move to the next menu or the button to exit and return to AUTO Setting Hour Ente...

Page 44: ...ired minute has been selected press the button to accept it and move to the next menu or the button to exit and return to AUTO Daylight Savings Time DST is valid for use in the USA Canada and other countries or locations that follow the US Energy Savings Act of 2005 Enter the CONFIG mode by pressing the and buttons until the arrow beside CONFIG is illuminated then press the button Press the button...

Page 45: ...performed anytime during AUTO Mode Software updates can only be made if a USB flash drive is installed with a newer version of software than the one currently installed in the MTOL If either a flash drive is not installed or a newer version of the software is not detected the following screen will appear Range changes can be made with either the current or later versions These other ranges were in...

Page 46: ...L Mode The instrument was calibrated for the 0 100 NTU range and tested prior to leaving the factory Therefore it is possible to use the instrument directly out of the box Under normal conditions re calibration is required once every three months Quarterly calibration ensures performance within accuracy specifications The EPA and ISO recommend that on line turbidimeters be calibrated with a primar...

Page 47: ...ting of 0 100 NTU the instrument must be recalibrated The calibration values will be 10 NTU 1 NTU and 02 NTU for 0 10 NTU range The instrument will prompt for the appropriate standards The calibration values will be 1000 NTU 10 NTU and 02 NTU for 0 1000 NTU range The instrument will prompt for the appropriate standards Calibration kits are available for the optional ranges Make changes as needed t...

Page 48: ...in AUTO mode insert the standard into the optical well 2 Slowly rotate the standard inside the optical well one complete revolution 360º While rotating the standard slowly observe the measured turbidity and locate the position of the cuvette having the lowest reading 3 With the calibration standard positioned at the location having the lowest turbidity reading install the Indexing Ring over the ca...

Page 49: ... upper display shows the real time reading to allow the standard to be indexed Refer to section 4 3 2 for information on indexing cuvettes 2 Remove the flow through unit 3 Insert the requested 100 NTU standard Index the standard to the lowest value on the upper display 4 To calibrate for 10 NTU and below only press the button to bypass the 100 NTU and proceed to step 7 5 Press the button to initia...

Page 50: ...u can abort the calibration by pushing the until the screen displays ABRT then press the button The instrument returns to AUTO operation The instrument will save and use any points that were calibrated successfully It should be noted that the calibration log will report any missed calibration values or failed calibrations 4 3 5 Calibration Failure The MTOL will test the validity of the calibration...

Page 51: ... MTOL to that obtained in the laboratory If the readings are very close then no offset adjustment or calibration is required and the procedure may be stopped at this step However if the readings are substantially different but less than 1 NTU continue on in this procedure to utilize the offset option to improve the turbidity reading of the MTOL so that it will agree with the laboratory reading bet...

Page 52: ...o time It is essential that the enclosure seal on the instrument base be maintained to ensure adequate desiccant life Inspect the seal each time the desiccant pouch is replaced Replace or reseat the seal if it is found to be defective The desiccant should be replaced when the instrument displays DESC A new sealed desiccant pouch and indicator card are available from HF scientific part 21555R 1 To ...

Page 53: ...tte to make sure it is tight before starting the flow The cuvette should be handled at the top to prevent fingerprints from interfering with readings 3 After the initial warm up period and once a continuous process stream is flowing through the instrument the instrument will display the measured turbidity level of the sample by displaying it on the LCD screen In addition the equivalent signal is p...

Page 54: ...ay will flash indicating an over range condition The 10 NTU range can display up to 11 NTU the 100 NTU range can display up to 110 NTU and the 1000 NTU range can display up to 1100 NTU 5 4 Data Retrieval Data is available in several forms It can be viewed on the screen logged in the instrument read via Modbus or output the 4 20 mA 5 4 1 USB Connection The USB connection can be used to upload new s...

Page 55: ...he logged data will be in Year Month Day At midnight of each day the current day s file is closed and a new day s file is opened For moisture tightness and humidity control the supplied USB plug cover must be kept installed firmly when not being used Failure to correctly install the plug will affect desiccant life 5 4 3 Modbus Communication Modbus protocol communication is operational on all model...

Page 56: ...4 20 mA and if an alarm is set up to Error If the correct cuvette is installed and the error is still posted try rotating the flow through assembly slightly to improve the connection to the ultrasonic transducer If this fails to work the cuvette may have to be replaced Catalog 24166S The detection for this cuvette only operates in AUTO mode If the system is operating correctly AUTO will flash on t...

Page 57: ...ming inside of the instrument no matter the outside environment or the temperature of the sample water All seals are important for proper operation and to extend desiccant life These seals must be in place and maintained Replace any missing or distorted seals or worn call HF scientific technical support section 6 4 Three important seals that are often overlooked are the O ring under the flow head ...

Page 58: ...ed by internal diagnostic alerts The time to take other routine maintenance tasks such as removal of flow through to manually clean cuvette will vary based on system usage and water quality conditions 5 7 Cleaning the Flow Through Cuvette Measurement cuvettes used for both the grab sample and the flow through should be clean and free of marks or scratches It is recommended to check and if required...

Page 59: ... replacement we recommend calling HF Service Department for assistance 5 9 Optional Factory Installed 24V Option This factory installed option allows for the operation of the MTOL from 24 volts DC For this instrument the changes are in the junction box only The range of correct operation is from 18 36VDC Caution must be used to not exceed this voltage Connections are not polarity sensitive and are...

Page 60: ...LM1 or ALM2 will be displayed if an alarm is set and the threshold is exceeded 6 1 2 Errors An error indicates a failure or a problem that usually can be corrected by the operator These errors consist of LAMP Lamp out MA 4 20 mA loop open FLOW If option equipped enabled and no flow CLN MTOL is equipped with ultrasonic cleaning and message will indicate that the ultrasonic transducer is not making ...

Page 61: ...e Sections 4 2 11 5 5 Upper display shows FILE Update not possible because new file not found Check USB flash drive See section 4 2 18 Readings are higher than expected Bubbles in solution Condensate or leaky cuvette Flow through cuvette dirty Instrument out of calibration Apply backpressure See section 6 3 and figure 4 For severe cases of bubbles a stilling chamber is available Call HF scientific...

Page 62: ...s cuvette it is coming out of solution This can usually be cured by applying pressure to the rotary backpressure clamp on the OUT side of the cuvette This helps keep the air in solution so it will not be seen by the instrument Refer to figure 4 6 4 Technical and Customer Assistance If for any reason assistance is needed regarding this instrument please do not hesitate to contact either the HF scie...

Page 63: ...tronic Service Module For MTOL IR Light factory set to 0 100 NTU 02852 Replacement Lamp Assembly White Light 24082S Replacement Lamp Assembly IR Light 21369S Operating Manual MTOL 29290 N A Modbus Manual MTOL 29291 N A ProCal Calibration Kit 02 10 100 NTU For 0 100 NTU range 39953 Procal Calibration Kit 02 1 10 NTU For 0 10 NTU range 39950 Procal Calibration Kit 02 10 1000 NTU For 0 1000 NTU range...

Page 64: ...lve 2 connecting tubing with fittings for flow through assembly 21062 Mounting Plate Kit Easy Mount Hardware 28157 To order any accessory or replacement part please contact the HF scientific Customer Service Department If for any reason technical assistance is needed regarding this instrument please do not hesitate to contact the HF Technical Services Department HF scientific 16260 Airport Park Dr...

Page 65: ... consequential damages including without limitation lost profits or the cost of repairing or replacing other property which is damaged if this product does not work properly other costs resulting from labor charges delays vandalism negligence fouling caused by foreign material damage from adverse water conditions chemical or any other circumstances over which the Company has no control In addition...

Page 66: ...Catalog No 29290 59 Rev 3 06 2020 ...

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