TOA-DKK TB-31 Instruction Manual
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TOA-DKK TB-31 Instruction Manual

Hand held turbidity meter
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TB3-LB16000E
No.
HAND HELD TURBIDITY METER
Please keep this instruction manual close at hand of the persons who are in charge of
the operation of this product.
Before operating this product, please read this instruction manual carefully for its
correct handling.
MODEL TB-31

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  • Page 1 HAND HELD TURBIDITY METER MODEL TB-31 Please keep this instruction manual close at hand of the persons who are in charge of the operation of this product. Before operating this product, please read this instruction manual carefully for its correct handling.
  • Page 2 Introduction Introduction (a) Thank you for your purchase of the Model TB-31 Hand Held turbidity meter (hereinafter called the instrument or the product). The instrument has a waterproof construction suitable for on-site measurements and a clock function and data memory function indispensable in data management.

  • Page 3: Safety Information

    Model: TB-31 Safety Information Safety Information (1) Meaning of markings The signal terminology and symbols related to warnings in the instruction manual are defined below. The alert symbol mark ( : General caution mark) indicates the possibility of hazard or damage and also means “Refer to the instruction manual.”...

  • Page 4: Notes On Use Of The Instruction Manual

    Model: TB-31 Safety Information Tumbling When working at the measurement point, prevent the tumbling using such as a safety belt, etc. In addition, to prevent injury, wear a helmet, life jacket, safety boots, etc. Waterproofing The construction of the product becomes waterproof (IP67) only when the sensor, battery cover, AC adapter cover, and input/output cover are installed properly.
  • Page 5 Model: TB-31 Warranty Warranty (1) Warranty Coverage DKK-TOA Corporation (DKK-TOA) warrants its products against defective material or workmanship for the warranty period. (a) The warranty period is two years from the date of delivery to the original user. (b) Specific written agreements with DKK-TOA, if any, shall take precedence over this warranty.

  • Page 6: Reading Guide

    Model: TB-31 Reading Guide Reading Guide Refer to the necessary sections of this instruction manual depending on your purposes such as understanding the outline of this product or starting the product as shown below. The numbers in circles indicate sections to be referred to in sequential order.

  • Page 7: Table Of Contents

    Model: TB-31 Table of Contents Table of Contents ●Introduction ··········································································································· 1 ●Safety Information ··························································································· 2 (1) Meaning of markings ⋅⋅⋅⋅ 2 (2) Safety compliance items ⋅⋅⋅⋅ 2 (3) Notes on use of the instruction manual ⋅⋅⋅⋅ 3 ●Warranty ·················································································································· 4 ●Reading Guide...
  • Page 8 Model: TB-31 Table of Contents 5.5 Performing the Calibration ··············································································· 29 (1) One-touch zero calibration ⋅⋅⋅⋅ 29 (2) Span calibration ⋅⋅⋅⋅ 30 5.6 Measurement ·································································································· 34 (1) Measurement by real-time mode ⋅⋅⋅⋅ 35 (2) Measurement by batch mode ⋅⋅⋅⋅ 37 5.7 Ending Measurement ······················································································...
  • Page 9 Model: TB-31 Table of Contents 7.4 Connection of Recorder ··················································································· 71 (1) Connection of analog output cable ⋅⋅⋅⋅ 71 (2) Analog output specifications ⋅⋅⋅⋅ 72 (3) Analog output cable terminals wiring ⋅⋅⋅⋅ 72 8. Maintenance and Inspection ····································· 8.1 Instrument Body Maintenance ········································································· 73 8.2 Turbidity Sensor Maintenance ·········································································...

  • Page 10: Content Of Package

    Model: TB-31 1. Content of Package 1. Content of Package Content of Package List Classification Description Model Quantity Appearance Main body Hand held turbidity meter TB-31 Accessories Turbidity sensor (Standard: Cable ELL-011 length 2m) (with built-in memory) Protective cover (with shoulder...

  • Page 11: Specifications And Functions

    Model: TB-31 2. Specifications and Functions 2. Specifications and Functions (1) Specifications Product name Hand held turbidity meter Model TB-31 Measuring method Near infrared 90 degree scattering light measurement Measuring object Turbidity, temperature Display Digital Simultaneous display of turbidity, temperature, and time (month and day,...

  • Page 12: Functions

    Model: TB-31 2. Specifications and Functions 〔NOTE〕 • This sensor is not for continuous measurements. When you want to perform simple monitoring, make the maximum continuous usage time approximately 24 hours. • To maintain measurement accuracy, careful cleaning is necessary.

  • Page 13: Name And Function Of Each Part

    Model: TB-31 3. Name and Function of Each Part 3. Name and Function of Each Part (1) Main body and operation panel Sensor jack Input/output cover Display AC adapter cover Battery cover Operation panel Names of Main Body Types and Functions of Operation Panel Keys...

  • Page 14: Display

    Model: TB-31 3. Name and Function of Each Part (Continued from previous page) Type of key ( Notation in text) Function • Saves the measured value. Data in/left arrow key • Selects the MODE, No., INT., CLOCK, C., or etc. mark at the Menu screen.
  • Page 15 Model: TB-31 3. Name and Function of Each Part Names and Functions of Display Names Functions (Notation in text) ① • Displays the data number. Data number display ② • Displays the remaining battery capacity (4-step display). Battery mark ③...

  • Page 16: Turbidity Sensor (Model Ell-011)

    Model: TB-31 3. Name and Function of Each Part (3) Turbidity sensor (Model ELL-011) ② ③ ④ ⑤ ⑥ ⑦ ① ⑧ Turbidity Sensor (Model ELL-011) Names and Contents of Turbidity Sensor (Model ELL-011) Names Contents ① • Plug for connecting the sensor to the instrument body.

  • Page 17: Preparations

    Model: TB-31 4.1 Loading the Batteries 4. Preparations 4.1 Loading the Batteries ① Remove the battery cover. After sliding the battery cover holder in the arrow direction with your finger, remove the battery cover while pulling both ends of the battery cover with your fingers.
  • Page 18 Model: TB-31 4.1 Loading the Batteries Packing Battery cover (inside) <State with packing installed properly> <When replacing> Checking the Packing 【IMPORTANT】 When installing the battery cover, confirm that the packing and the rib (part which seals the packing) are not scratched, deteriorated or dusty.
  • Page 19 Model: TB-31 4.1 Loading the Batteries End of battery cover End of battery cover holder is not firmly holder is firmly inserted inserted into the notch into the notch of the of the battery cover. battery cover. Checking the end of the Battery Cover Holder...

  • Page 20: Installing And Removing The Protective Cover

    Model: TB-31 4.2 Installing and Removing the Protective Cover 4.2 Installing and Removing the Protective Cover Injury Handle the instrument body carefully so as not to damage it. If the body is damaged by mistake the broken pieces may cause injury.
  • Page 21 Model: TB-31 4.2 Installing and Removing the Protective Cover ② Push out the instrument body. Insert your middle finger and index finger into the oval hole in the back of the instrument body and push out the instrument body. Instrument body...

  • Page 22: Turbidity Sensor Connection

    Model: TB-31 4.3 Turbidity Sensor Connection 4.3 Turbidity Sensor Connection Fire and electric shock Always verify that the power is off before connecting or disconnecting the sensor plug, AC adapter cover, or input/output cover. Water or reagent entering the product may short the circuits and cause electric shock or fire.
  • Page 23 Model: TB-31 4.3 Turbidity Sensor Connection 【IMPORTANT】 If the plug body is turned or moved back and forth when removing and installing the sensor plug, the pins and connector may be damaged. Pull it straight out or push it straight in.

  • Page 24: Turbidity Sensor Preparation

    Model: TB-31 4.4 Turbidity Sensor Preparation 4.4 Turbidity Sensor Preparation Before performing the calibration or measurements, inspect the sensor. For details, refer to 8.2 “Turbidity Sensor Maintenance”, or the instruction manual supplied with the sensor. ① Remove the protective tube.

  • Page 25: Basic Operation

    Model: TB-31 5.1 Operation Screens Map 5. Basic Operation 5.1 Operation Screens Map POWER Power on (ON) (Press for 2 seconds or more.) POWER When pressing (less than 2 seconds) at any screen, the display returns directly to the measurement state (measurement standby state).

  • Page 26: Turning On The Power

    Model: TB-31 5.2 Turning on the Power 5.2 Turning on the Power (a) Press for 2 seconds or more (until you hear a beep). (b) When the instrument power is turned on for the first time after purchase, the real-time mode measurement screen is displayed subsequently to the version No.

  • Page 27: Time Setting

    Model: TB-31 5.3 Time Setting 5.3 Time Setting Set the current date and time in accordance with the following procedure. Time Setting Procedure Operation Screen example ① Display the menu screen. Press at the each Year screen in the measurement state or in the measurement standby state CLOCK to blink.

  • Page 28: Calibration Data Display And Deletion

    Model: TB-31 5.4 Calibration Data Display and Deletion 5.4 Calibration Data Display and Deletion 【IMPORTANT】 When using this product for the first time, go to 5.5 “Performing the Calibration”. (1) When deleting the calibration data For the following cases, perform the calibration after the previous calibration data is deleted.

  • Page 29: Calibration Data Deletion

    Model: TB-31 5.4 Calibration Data Display and Deletion (3) Calibration data deletion Before performing the calibration, always delete the previous calibration data. 【IMPORTANT】 When deleting the calibration data, both of zero calibration and span calibration return to the factory setting.

  • Page 30: Performing The Calibration

    Model: TB-31 5.5 Performing the Calibration 5.5 Performing the Calibration (a) Before making the measurements, always perform zero calibration. When the measured value has deviated from the reference value and when combined with other methods, perform span calibration. One-touch calibration using pure water and zero calibration using formazin and refined kaolin will be...

  • Page 31: Span Calibration

    Model: TB-31 5.5 Performing the Calibration ④ Perform the calibration. After the indicated value stabilizes, press for 2 seconds or more. In the real-time mode, immediately after was pressed, is displayed and calibration is performed. Perform the operation of calibration after visually checking the indicated value stability.
  • Page 32 Model: TB-31 5.5 Performing the Calibration 【IMPORTANT】 Because particles easily settle out in formazin and kaolin standard solution, always use them in the stirred state. Even a small amount of sediment will affect the turbidity value. ③ Calibration preparations Procure a beaker large enough to immerse the protective tube of the sensor into the solution with the sensor end 5cm from the beaker bottom and fill the beaker with the turbidity standard solution.
  • Page 33 Model: TB-31 5.5 Performing the Calibration ⑤ Perform the calibration. Perform span calibration in accordance with the following procedure. Span Calibration Procedure Operation Screen example ① Display the menu screen. Press at the each screen in the measurement state or in the measurement standby state ②...
  • Page 34 Model: TB-31 5.5 Performing the Calibration 【IMPORTANT】 Span calibration is performed immediately after is pressed in either the real-time mode or the batch mode. Always perform the operation of span calibration after visually checking the indicated value stability. [Span calibration screen...

  • Page 35: Measurement

    Model: TB-31 5.6 Measurement 5.6 Measurement Real-time mode and batch mode are available in this instrument. Use each mode according to the test water or measurement conditions. Tumbling When working at the measurement point, take tumbling prevention measures such as a safety belt, etc. In addition, to prevent injury, wear a helmet, life jacket, safety boots, etc.

  • Page 36: Measurement By Real-Time Mode

    Model: TB-31 5.6 Measurement Measurement by real-time mode The measured value is always displayed in the real-time mode, so the variation in time of turbidity value can be read. (a) Real-time mode setting First, set to the real-time mode as the measurement mode.
  • Page 37 Model: TB-31 5.6 Measurement Sensor Air vent groove (Upward) Test water Immersing the Sensor into the Test Water 【IMPORTANT】 If the sensor is immersed vigorously into the test water, an accurate measured value will not be obtained because air easily sticks to the light-receiving part and light-emitting part.

  • Page 38: Measurement By Batch Mode

    Model: TB-31 5.6 Measurement [Real-time mode measurement screen (example)] (2) Measurement by batch mode In the batch mode, the measured value is displayed only at the timing you want to measure. This is an extremely energy saving mode because turbidity measurement is performed only at measurement.
  • Page 39 Model: TB-31 5.6 Measurement ③ Immerse the sensor into the test water. Immerse the sensor into the test water in the state that the air vent groove is immersed completely. When the sensor is shaken up and down and left and right, the bubbles clinging to the light-receiving part and light-emitting part of the sensor will be removed.

  • Page 40: Ending Measurement

    Model: TB-31 5.7 Ending Measurement 5.7 Ending Measurement ① Turn off the power. Press for 2 seconds or more (until you hear a beep). The instrument power is turned off (OFF). ② Clean the sensor. After the end of the measurement, clean the sensor with pure water. Refer to 8.2 “Turbidity Sensor Maintenance”.

  • Page 41: How To Use Various Functions

    Model: TB-31 6.1 Auto Hold Function 6. How to Use Various Functions 6.1 Auto Hold Function (a) In the auto hold function, measurement stability is automatically checked and the measured value is held, then the instrument switches to the hold standby state. At this time, the measured value is automatically saved.
  • Page 42 Model: TB-31 6.1 Auto Hold Function (Continued from previous page) Operation Screen example ⑤ Repeating the measurement ⋅ When you want to measure the other test water continuously by this auto hold function, return to the measurement screen by pressing , and then repeat the operation of steps ①, ③, and...

  • Page 43: Data Memory Function

    Model: TB-31 6.2 Data Memory Function 6.2 Data Memory Function (a) With the data memory function, the data number to store up to 1000 measured values can be set. In addition, the stored data can be individually recalled. (b) Before the start of measurement, set the data number of the measured value storage destination.

  • Page 44: Memory Execution By Manual Key

    Model: TB-31 6.2 Data Memory Function (2) Memory execution by manual key The current measured value can be stored each time the key is pressed. This function is enabled only in real-time mode. Memory Execution Procedure by Manual Key Operation Screen example ①...

  • Page 45: Memory Data Recall And Erasing

    Model: TB-31 6.2 Data Memory Function (3) Memory data recall and erasing (a) With the data memory function the stored measured value of each data number can be recalled and displayed on the screen. (b) The stored data can also be erased.

  • Page 46: Interval Function

    Model: TB-31 6.3 Interval Function 6.3 Interval Function (a) When the interval function is enabled, the instrument enters the interval standby state and memory using interval can be executed. The measured value can be automatically saved by the set period.
  • Page 47 Model: TB-31 6.3 Interval Function (Continued from previous page) Operation Screen example ④ Select the interval function. Press select interval function enable/disable. Setting range: oFF (disable) (Factory setting: OFF) Shrt (enable, short interval) Long (enable, long interval) ⑤ Set the interval time.

  • Page 48: Memory Execution By Interval

    Model: TB-31 6.3 Interval Function (2) Memory execution by interval (a) By enabling the interval function, a measurement is made and the measured data is automatically stored at the set interval time. (b) This function is enabled only in the real-time mode. Set the instrument to the real-time mode in advance.
  • Page 49 Model: TB-31 6.3 Interval Function (b) Interval memory stop Interval Memory Stop Procedure Operation Screen example ① Stop interval execution. Press during interval memory execution. The display returns to the measurement screen in the interval standby state ( INT. blinking) and memory execution stops.

  • Page 50: Display Range Switching Setting

    Model: TB-31 6.4 Display Range Switching Setting 6.4 Display Range Switching Setting (a) The display range switching is performed by three kinds of ranges, auto range, low range and high range. (b) In auto range, when the value is less than 80NTU, the range switches to low range, and when 80NTU or more, the range switches to high range.

  • Page 51: Measurement Unit Setting

    Model: TB-31 6.5 Measurement Unit Setting 6.5 Measurement Unit Setting The measurement units display of this instrument can be switched between NTU with formazin as the standard substance and mg/L with refined kaolin as the standard substance 【IMPORTANT】 • This instrument is calibrated at the factory with NTU as the units using formazin standard solution.

  • Page 52: Response Setting

    Model: TB-31 6.6 Response Setting 6.6 Response Setting (a) There are 3 response settings of normal, fast, and slow. (b) The response setting is set to normal at the factory. However, the indicated value may never become stable depending on the test water. When the value varies widely and is unstable, the indicated value variations can be reduced by changing the response setting to slow.

  • Page 53: Temperature Calibration Function

    Model: TB-31 6.7 Temperature Calibration Function 6.7 Temperature Calibration Function (a) When performing precise measurement, temperature calibration (1-point calibration) can be performed by adjusting the temperature measured value to values measured by another standard thermometer to compensate for the temperature error of the sensor.
  • Page 54 Model: TB-31 6.7 Temperature Calibration Function (Continued from previous page) Operation Screen example ⑦ Entry. ⋅ After the end of temperature calibration, press (less than 2 seconds). The display returns to the real-time mode measurement screen or batch mode measurement standby screen by the setting of measurement mode.

  • Page 55: Memory Overwrite On/Off Setting

    Model: TB-31 6.8 Memory Overwrite On/Off Setting 6.8 Memory Overwrite On/Off Setting (a) When the measured value data No. exceeds 1000, whether or not the data No. is returned to 1 and the data is overwritten can be set. (b)When set to overwrite (ON), the old data is erased. Conversely, when set to do not overwrite (OFF), when storage exceeding data No.

  • Page 56: Buzzer On/Off Setting

    Model: TB-31 6.9 Buzzer On/Off Setting 6.9 Buzzer On/Off Setting The operating sound, operation end sound, and other sounds can be turned on and off. Buzzer On/Off Setting Procedure Operation Screen example ① Display the menu screen. Press at the each screen in the measurement state or in the measurement standby state.

  • Page 57: Auto Power Off Setting

    Model: TB-31 6.10 Auto Power Off Setting 6.10 Auto Power Off Setting (a) The auto power off function automatically turns off the power when a key operation was not performed within the set time (10/20/30/60 minutes). (b) This function is disabled during memory execution by interval at the interval execution screen.

  • Page 58: Functions By Optional Devices Connection

    Model: TB-31 7.1 Connection of Optional Devices 7. Functions by Optional Devices Connection 7.1 Connection of Optional Devices (a) AC adapter, external printer, analog output cable, and RS-232C connection cable can be connected as optional devices. (b) RS-232C and analog output of this instrument are uninsulated type.

  • Page 59: Connection Of Analog Output Cable

    Model: TB-31 7.1 Connection of Optional Devices (2) Connection of analog output cable 【IMPORTANT】 Always use our optional analog output cable. Never use an analog output cable other than ours. ① Confirm that the power is off. Confirm that the instrument power is off.

  • Page 60: Connection Of External Printer Connection Cable

    Model: TB-31 7.1 Connection of Optional Devices (3) Connection of external printer connection cable The measurement results and calibration results can be printed on plain paper by connecting an external printer (option) to the instrument. 【IMPORTANT】 Always use our optional external printer connection cable. Never use an external printer connection cable other than ours.
  • Page 61 Model: TB-31 7.1 Connection of Optional Devices 【IMPORTANT】 Always use our optional RS-232C connection cable. Never use an RS-232C connection cable other than ours. ① Confirm that the power is off. Confirm that the instrument power is off. ② Connect the RS-232C connection cable.

  • Page 62: Printing Function By External Printer

    Model: TB-31 7.2 Printing Function by External Printer 7.2 Printing Function by External Printer When an external printer (option) is connected, the measured value data can be printed as described below. (1) Printing of calibrated value When calibration was ended, the calibrated value can be automatically printed.

  • Page 63: Printing Of Measured Value

    Model: TB-31 7.2 Printing Function by External Printer (2) Printing of measured value (a) Printing by auto hold function When measurement was performed by auto hold function, the measured value can be printed simultaneously with hold. 6.1(1) “Memory execution by auto hold”...
  • Page 64 Model: TB-31 7.2 Printing Function by External Printer (d) Printing of memory data by data memory function The value measured at the site can be printed later as stored data. 6.2(3) “Memory data recall and erasing” (i) Printing of individual memory data...
  • Page 65 Model: TB-31 7.2 Printing Function by External Printer (ii) Memory data continuous printing Memory data can be continuously printed by specifying the data number range. Memory Data Continuous Printing Procedure Operation Screen example ① Display the memory data display screen.

  • Page 66: Rs-232C Communication Function

    Model: TB-31 7.3 RS-232C Communication Function 7.3 RS-232C Communication Function When the RS-232C input/output cable is connected, the auto power off function is disabled. 〔NOTE〕 Our RS-232C input/output cable is uninsulated type. (1) RS-232C communication format [Communication conditions] Fixed Transmission method : Half duplex communication...
  • Page 67 Model: TB-31 7.3 RS-232C Communication Function ■Memory data request Instrument DM, xxxx[, xxxx] CRLF ① ② ③ can be omitted ①: Request code DM fixed 2byte ②: Start data number 4byte 1 to 1000 ③: End data number *When ② > ③, error is sent.
  • Page 68 Q02, xxxx CRLF ① ② ①: Request code 3byte ②: Data number 4byte [Q11 reply] Q11, TB-31 CRLF ① ② ①: Request code 3byte ②: Set No. 10byte (left-justified, vacant places are filled with spaces) [Q12 reply] Q12, 1234567890 CRLF ①...
  • Page 69 Model: TB-31 7.3 RS-232C Communication Function [Q72 reply] Q72, 0 CRLF ① ② ①: Request code 3byte ②: Measurement mode. 1byte 0: Batch mode, 1: Real-time mode [Q73 reply] Q73, 0 CRLF ① ② ①: Request code 3byte ②: Measurement mode.
  • Page 70 Model: TB-31 7.3 RS-232C Communication Function Instrument S, 0001, xx CRLF ① ② ③ ①: Setting code 1byte ②: Set value 4byte 1 to 1000 ③: Reply status 2byte OK: Normal NG: Cannot be set ■Date and time setting Instrument RT, 20110820, 123400 CRLF ①...

  • Page 71: Data Collection Software

    Model: TB-31 7.3 RS-232C Communication Function Instrument START, xx CRLF ① ② ①: Setting code 5byte ②: Reply status 2byte 0: Started 1: Cannot start ■Measurement stop *Enabled only for batch mode. Error occurs at real-time mode Instrument STOP, CRLF ①...

  • Page 72: Connection Of Recorder

    Model: TB-31 7.4 Connection of Recorder 7.4 Connection of Recorder Waterproofing The construction of the product becomes waterproof (IP67) only when the sensor, battery cover, AC adapter cover, and input/output cover are installed properly. Do not touch the instrument with wet hands or wash it with water when the sensor has been removed or the battery cover, AC adapter cover, or input/output cover is opened.

  • Page 73: Analog Output Specifications

    Model: TB-31 7.4 Connection of Recorder (2) Analog output specifications Output items Measured value (Turbidity) Temperature Range Output DC voltage Turbidity: 0 to 800 (NTU, mg/L) 0 to 800mV (High concentration range) 0.0 to 80.0 (NTU, mg/L) 0 to 800mV (Low concentration range)

  • Page 74: Maintenance And Inspection

    Model: TB-31 8.1 Instrument Body Maintenance 8. Maintenance and Inspection 8.1 Instrument Body Maintenance When cleaning the instrument, wipe it with a soft cloth, tissue paper, or other soft material. In addition, when the instrument is very dirty, dip gauze, etc. into a dilute neutral detergent solution and always wring out the gauze and wipe the instrument body in the state in which the sensor, battery cover, AC adapter cover, and input/output cover are properly installed.

  • Page 75: Turbidity Sensor Maintenance

    Model: TB-31 8.2 Turbidity Sensor Maintenance 8.2 Turbidity Sensor Maintenance Tumbling When working at the measurement point, take tumbling prevention measures such as a safety belt, etc. In addition, to prevent injury, wear a helmet, life jacket, safety boots, etc.

  • Page 76: When Not Recovered Even By Daily Maintenance

    Model: TB-31 8.2 Turbidity Sensor Maintenance ② Wash the light-receiving part and light-emitting part. Wash out the light-receiving part and light-emitting part of the sensor with pure water and wipe off them gently with tissue paper, etc. Light-emitting part Sensor...

  • Page 77: Battery Replacement Period

    Model: TB-31 8.3 Battery replacement period 8.3 Battery Replacement Period (a) When the battery mark display becomes as shown in No. 4 of the table below, replace the batteries with new or recharged batteries. 4.1 “Loading the Batteries” (b) Since this remaining capacity display differs somewhat for AA size alkali batteries and AA size rechargeable nickel hydride batteries, it is only a guideline.

  • Page 78: Troubleshooting

    Model: TB-31 9.1 Safety Precautions When an Abnormality Occurred Troubleshooting 9.1 Safety Precautions When an Abnormality Occurred If an abnormality should occur, remove the batteries. In addition, when an AC adapter (option) is used, disconnect it from the AC receptacle.

  • Page 79: Error Display

    Model: TB-31 9.2 Error Display 9.2 Error Display (a) This instrument has an error display function to alert the operator that an operation mistake or trouble has occurred. ERROR When an error is generated, the mark blinks, an error number is displayed at the main display, and an “error display screen”...

  • Page 80: Other Troubles And Countermeasures

    Model: TB-31 9.3 Other Troubles and Countermeasures 9.3 Other Troubles and Countermeasures (a) For the trouble contents, causes, and countermeasures of other than error number display, refer to the following table “Other Troubles and Countermeasures”. (b) When the instrument does not recover even when these countermeasures are taken, when a trouble other than described below has occurred, or when requesting repair, please confirm the set/sensor name, model No., and the serial No.
  • Page 81 Model: TB-31 9.3 Other Troubles and Countermeasures (Continued from previous page) Trouble contents Cause Countermeasures • Zero calibration value is not correct. • Connect the sensor properly. Measured value blinks at “0” or “0.0”. • Replace the sensor. (Turbidity is less than 4.3 “Turbidity Sensor Connection, 4.4...

  • Page 82: How To Reset The System

    Model: TB-31 9.4 How to Reset the System 9.4 How to Reset the System (a) If the instrument fails to operate properly or an error is generated at the display, it may be possible to return to normal operation by resetting the system.

  • Page 83: Transport, Storage, And Disposal

    Model: TB-31 10.1 Transport 10. Transport, Storage, and Disposal 10.1 Transport 【IMPORTANT】 • Always pack the instrument in its container box. Also, do not drop or overturn the box and do not place heavy objects atop the box. Doing so will cause instrument trouble.

  • Page 84: Storage

    Model: TB-31 10.2 Storage 10.3 Disposal 10.2 Storage Explosion, fire, electric shock, and battery leakage Do not use the product in an area where explosive gas or flammable gas exists. Do not place the product in a fire or burn it. Doing so may cause an explosion or fire inside the product.

  • Page 85: Parts/Options List

    Model: TB-31 11 Parts/Options List 11. Parts/Options List When purchasing parts, optional parts, etc., order them from the dealer from whom you bought the instrument. At this time, please specify the part name, type, and quantity. Parts List (Standard accessories)
  • Page 86 Model: TB-31 11 Parts/Options List Options List Name Type Sales units Remarks − AC adapter Contact your dealer or us. External printer EPS-P30 With connection cable External printer paper P000119 1 pack Non-thermal paper (20 rolls) Ink ribbon for external printer...
  • Page 87 Model: TB-31 Revision History Instruction Manual No. 21/11/2011 (JJ) New Version in English TB3-LB16000E (RSL T.Sato, A.Tanaka／DEC H.Nakamura) ・B5 size - 86 -...
  • Page 88 Head Office Address: 29-10, 1-Chome, Takadanobaba, Shinjuku-Ku, Tokyo, 169-8648 Japan Telephone: +81-3-3202-0225 Facsimile: +81-3-3202-5685 URL http://www.toadkk.co.jp/...

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