YOKOGAWA TB750G Quick Start Manual
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YOKOGAWA TB750G Quick Start Manual

YOKOGAWA TB750G Quick Start Manual

Right angle scattered light turbidimeter
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User's
Manual
Model TB750G
Right Angle Scattered Light
Turbidimeter
Quick Start Manual
IM 12E01A06-02E
IM 12E01A06-02E
3rd Edition

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Summary of Contents for YOKOGAWA TB750G

  • Page 1 User’s Manual Model TB750G Right Angle Scattered Light Turbidimeter Quick Start Manual IM 12E01A06-02E IM 12E01A06-02E 3rd Edition...

  • Page 2: Introduction

    INTRODUCTION n Structure of this Manual This is a supplementary manual to TB750G Right Angle Scattered Light Turbidimeter for User's Manual IM 12E01A06-01E. This manual describes the specifications, installation, operation, maintenance, and troubleshooting. To use this instrument correctly, read this manual and User's Manual IM 12E01A06- 01E thoroughly.

  • Page 3: Notice

    Yokogawa grants no warranties other than the express warranty set forth under the warranty pro- visions. l Yokogawa shall not be liable to you or any third party for any damage, including consequential or incidental damages, arising out of or in connection with the use of this equipment, defects beyond our knowledge, or any other contingency beyond our control.

  • Page 4: Table Of Contents

    System Using Open Head Tank and Zero Turbidity Filter ....2-1 2.1.2 System without Head Tank and Zero Turbidity Filter ......2-2 Wiring ......................... 2-3 2.2.1 Wiring Required for TB750G ............. 2-3 2.2.2 Wiring for Detector ................2-4 2.2.3 Wiring for Converter ................2-5 OPERATION ....................
  • Page 5 Toc-2 <CONTENTS> MAINTENANCE ..................5-1 Lamp Replacement ................... 5-1 Calibration ......................5-2 5.2.1 Outline ....................5-2 5.2.2 2-point Calibration Using Turbidity Standard Solutions ..... 5-2 TROUBLESHOOTING ................6-1 Revision Information ....................i IM 12E01A06-02E...

  • Page 6: Overview

    <1.Overview> OVERVIEW Features The TB750G is a process turbidimeter employing the right angle light scattering method, and has the following features. • Highly reliable measurement with excellent linearity and repeatability - Linearity: ±2% of reading or ±0.01 NTU, whichever is greater - Repeatability: ±1% of reading or ±0.002 NTU, whichever is greater...
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  • Page 8: Piping And Wiring

    Head Tank Flow Control Valve Sample Water Effluent Sample Water Outlet Sample TB750G Water Drain Detector Sample Water Drain Drain Valve Valve...

  • Page 9: System Without Head Tank And Zero Turbidity Filter

    Sample water conditions and ambient temperature must meet the specifications: maximum pressure: 500 kPa; sample temperature: 0 to 50°C; ambient temperature: -5 to 50°C. Flow Control Valve Sample Water Effluent Sample Water Outlet TB750G Process Piping Drain Detector Sample Sample Water Sample Water...

  • Page 10: Wiring

    RS-232C (RS-232C) When option code "/US" is specified, TUS400G should be purchased separately. When TUS400G is used in system, the power supply to TB750G should be the same as the supply voltage specified in the MS Code of TUS400G. F2-3E.ai When "TB750G/US"...

  • Page 11: Wiring For Detector

    <2. PIPING AND WIRING> 2.2.2 Wiring for Detector Wire for connections to the following terminals: Power supply terminals; Power supply terminals for ultrasonic oscillator (when option code “/US” is specified); and, External grounding terminal. Terminals TM3 (Power to Lamp) (1) Power Supply Terminals Terminal G (For Converter - Detector Connecting Cable)

  • Page 12: Wiring For Converter

    <2. PIPING AND WIRING> 2.2.3 Wiring for Converter Wire for connections to the following terminals: Analog output/contact input terminals; Contact output/range contact output terminals; Serial communication terminals (when in use); and, Grounding terminal. Converter - Detector Serial Communication Connector for Connecting Cable Terminals Converter - Detector Cable...
  • Page 13 <2. PIPING AND WIRING> Contact Output (S1, S2 and FAIL) Wiring • Be sure to use the contacts meeting the conditions below. • Functions of contact outputs S1 and S2 should be set in Codes 40 and 41 at service level. Refer to section 4.3.

  • Page 14: Operation

    • Unused cable inlets should be plugged to prevent moisture from entering. 2. Piping Check 3. Wiring Check • Note that the TB750G does not have an internal 4. Supplying Power power switch. • Upon power up, allow the meter to warm up for 5.

  • Page 15: Calibration

    <3. OPERATION> 3.1.3 Calibration When performing a calibration using 0.2 or 1.0 µm filtered water as zero reference, refer to section 3.1.4. When performing a 2-point calibration using standard solutions, refer to section 3.1.5. Use this method to perform a calibration complying with EPA 180.1. Note: The instrument has been pre-calibrated using 0.2 µm filtered water as zero reference at the factory before shipment.

  • Page 16: Performing Zero/Span Calibration Using Filtered Water As Zero Reference

    <3. OPERATION> 3.1.4 Performing Zero/span Calibration Using Filtered Water as Zero Reference START • Supply power • Warm-up (at least 1 hour) • Allow water to run through the zero filter • Supply zero water • Prepare span solution, if necessary [MODE] CALB Automatically goes into...
  • Page 17 <3. OPERATION> Span calibration using check block Note: For span calibration using standard solution, refer to next page. From zero calibration X.XXX STD.CAL [YES] X.XXX ZERO [NO] X.XXX SPAN • Stop supplying zero water • Drain zero water • Install check block * •...
  • Page 18 <3. OPERATION> Span calibration using standard solution (1/2) From zero calibration Before performing span calibration using standard solution, standard solution/check block selection should be set to "0 (standard solution)" in CODE 16 as shown below. HOLD [YES] HOLD [*] at least second To enter operation level *SETP [NO]...
  • Page 19 <3. OPERATION> Span calibration using standard solution (2/2) CALB [YES] X.XXX STD.CAL [YES] X.XXX ZERO [NO] X.XXX SPAN • Remove top cover (6 setscrews) • Rinse the cell with span solution and drain • Fill the cell with span solution to 90% * •...

  • Page 20: Performing 2-Point Calibration Using Standard Solution

    <3. OPERATION> 3.1.5 Performing 2-point Calibration Using Standard Solution START • Supply power • Warm-up (at least 1 hour) • Wash the cell • Prepare zero and span solutions [MODE] CALB [YES] X.XXX STD.CAL [NO] X.XXX SMP.CAL [YES] X.XXX ZRSPAN •...

  • Page 21: Normal Operation

    The turbidity measurement is not affected by temporary suspension of sample water supply, but long- term suspension may interfere with the accuracy of the instrument. Since the TB750G cannot detect whether the sample water supply is stopped or not, periodical check of the sample line is needed.

  • Page 22: Parameter Setting

    <4. PARAMETER SETTING> PARAMETER SETTING Outline of Operation, Setting, and Service Levels Parameters should be set in the relevant mode classified into three levels: operation, setting and service. Measurement Mode [MODE] key [ * ] For at least second Operation Level Setting Level CALIB (Calibration) STEP (Alarm setting)

  • Page 23: Operation Level

    <4. PARAMETER SETTING> Operation Level This is the level where, basically, operations regarding routine inspections and maintenance, such as calibration and manual cleaning, can be done. Also, the desired display item on the message display can be selected at this operation level. Measurement mode [MODE]...

  • Page 24: Setting Level

    <4. PARAMETER SETTING> Setting Level There are modes where parameters regarding output signals and contact outputs can be set. Measurement HOLD mode [ * ] For at least second [YES] *SETP SETPOINTS Mode [NO] [YES] *RANGE RANGE Mode [NO] [YES] *HOLD SET HOLD Mode [NO]...

  • Page 25: Service Level

    <4. PARAMETER SETTING> Service Level The TB750G turbidimeter has various functions. At this level there are modes where functions can be selected according to need for the operation. Table 4.3 Setting Parameters at Service Level (1/2) Code Setting Parameter Display...
  • Page 26 <4. PARAMETER SETTING> Table 4.3 Setting Parameters at Service Level (2/2) Code Setting Parameter Display Setting Range Default CODE37 Time constant setting Time constant in measurement *TC 000 to 120[s] 020(s) Time constant in maintenance *TC-M 000 to 120[s] 006(s) CODE40 Contact output S1 function selection * S1 0:None , 1: Alarm, 1: Alarm...

  • Page 27: Procedures For Setting Parameters

    <4. PARAMETER SETTING> Procedures for Setting Parameters An example for setting parameters, the procedures are described in following modes. For more detail on the other functions, refer to User’s Manual IM 12E01A06-01E Section 6. (1) CAL Mode: {CALIB} (2) HOLD Mode: {HOLD} (3) RANGE Mode: {*RANGE} CAL Mode: {CALIB} CALIB...
  • Page 28 <4. PARAMETER SETTING> HOLD Mode: {HOLD} In this mode whether the analog output is held or not in measurement mode, can be selected. This function is available when the hold function is set to “1: Enabled” in SET HOLD mode at the setting level.
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  • Page 30: Maintenance

    Some lamps may fail within one year. The following describes how to replace the lamp. Remove power from the TB750G turbidimeter. Remove the cover of the light source unit on the left side of the detector by loosening the 4 setscrews.

  • Page 31: Calibration

    5.2.2 2-point Calibration Using Turbidity Standard Solutions A 2-point calibration of the TB750G is performed with turbidity standard solutions equivalent to zero solution and to span solution. After accepting both zero and span values, the meter calculates a calibration factor.

  • Page 32: Troubleshooting

    <6. TROUBLESHOOTING> TROUBLESHOOTING Table 6.1 Error Code List (1/3) Error Occurrence Problem Return E102 EEPROM write All modes Data is written in EEPROM and verified, When power is failure and write failure occurs 3 consecutive turned off and then on times.
  • Page 33 <6. TROUBLESHOOTING> Table 6.1 Error Code List (2/3) Error Occurrence Problem Return E301 Turbidity zero During zero Turbidity zero calibration coefficient A When problem is calibration calibration (zero newly determined after zero calibration eliminated. When coefficient A water). (zero water or lamp OFF) is outside of [YES]/[NO] key is failure the range of 0 to 5, or each coordinate...
  • Page 34 <6. TROUBLESHOOTING> Table 6.1 Error Code List (3/3) Error Occurrence Problem Return E351 Analog output During Either of: When [YES]/[NO] key range setting parameter (1) Zero point ≥ span point, or is pressed, error code failure setting in (2) Span point - zero point < 20% of display disappears RANGE mode or span point or 0.20, whichever is greater...
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  • Page 36: Revision Information

    Revision Information Title: Model TB750G Right Angle Scattered Light Turbidimeter Quick Start Manual Manual No.: IM 12E01A06-02E Edition Date Remark (s) Mar. 2018 Error code E101 was entirely deleted. (p. 6-1) Mar. 2015 P.2-3, Some revision of Section 2.2.1, “Wiring Required for TB750G” : Note 6 is added to figure 2.3.
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