YOKOGAWA SC92 User Manual
  1. Manuals
  2. Brands
  3. YOKOGAWA Manuals
  4. Measuring Instruments
  5. SC92
  6. User manual
YOKOGAWA SC92 User Manual

YOKOGAWA SC92 User Manual

Portable conductivity meter
Hide thumbs Also See for SC92:
Table of Contents

Advertisement

Quick Links

Download this manual
User's
Manual
SC92 Portable Conductivity Meter
IM 12D03E02-02EN
IM 12D03E02-02EN
1st Edition

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the SC92 and is the answer not in the manual?

Questions and answers

Subscribe to Our Youtube Channel

Related Manuals for YOKOGAWA SC92

Summary of Contents for YOKOGAWA SC92

  • Page 1 User’s Manual SC92 Portable Conductivity Meter IM 12D03E02-02EN IM 12D03E02-02EN 1st Edition...

  • Page 2: Introduction

    Thank you for purchasing the SC92 Portable Conductivity Meter. This Instructor’s Manual contains all essential information for the user to make full use of the SC92. Please read the following respective documents before using the SC92. The related documents are listed as follows. User’s Manual...
  • Page 3 Otherwise battery leakage may occur, causing damage to or malfunction of the meter. • Use both meters and sensors made by YOKOGAWA. Otherwise, it will result not only voiding of our warranty, but also may impair the safety and performance of the instrument.

  • Page 4: Product Disposal

    Batteries must be disposed of in accordance with local and national laws/regulations. Warranty and service YOKOGAWA products and parts are guaranteed free from defects in workmanship and material under normal use and service for a period of (typically) 12 months from the date of shipment from the manufacturer.

  • Page 5: Safety Precautions

    The product is provided on an “as is” basis. YOKOGAWA shall have neither liability nor responsibility to any person or entity with respect to any direct or indirect loss or damage arising from using the product or any defect of the product that YOKOGAWA can not predict in advance. IM 12D03E02-02EN...

  • Page 6: Compliant Standards

    Compliant Standards EMC: EN 61326-1 Class B Table 1 (For use in a basic electromagnetic environment) EN IEC 61326-1 Class B Table 1 (For use in a basic electromagnetic environment) Influence of immunity environment (Criteria A): change of reading value is specified within ±...

  • Page 7: Ce Marking Products

    CE marking products n Authorized Representative in EEA The Authorized Representative for this product in EEA is Yokogawa Europe B.V. (Euroweg 2, 3825 HD Amersfoort, The Netherlands). n Identification Tag This manual and the identification tag attached on packing box are essential parts of the product.

  • Page 8: Control Of Pollution Caused By The Product

    Control of Pollution Caused by the Product This is an explanation for the product based on “Control of Pollution caused by Electronic Information Products” in the People’s Republic of China. 产品中有害物质的名称及含量 有害物质 部件名称 铅 汞 镉 六价铬 多溴联苯 多溴二苯醚 (Pb) (Hg) (Cd) (Cr (VI)) (PBB) (PBDE) 本体...
  • Page 9 Blank Page...

  • Page 10: Table Of Contents

    Toc-1 SC92 Portable Conductivity Meter IM 12D03E02-02EN 1st Edition CONTENTS Introduction ....................i Safety Precautions ..................iv Compliant Standards ...................v CE marking products ..................vi Control of Pollution Caused by the Product ...............vii General Description ................. 1-1 1.1 Specifications ....................1-2 1.2 Instrument Check ....................1-3 1.3 Model and Suffix Codes ................... 1-4 1.4 Part Name and Functions ................1-4 1.5...
  • Page 11 Toc-2 5.1 Standard Solution Calibration ................. 5-1 5.2 Temperature Calibration .................. 5-4 Data Mode (DATA) ..................6-1 Storage and Maintenance ................ 7-1 7.1 Storage ....................... 7-1 7.2 Meter Maintenance .................... 7-2 7.3 Sensor Maintenance ..................7-3 Trouble Shooting ..................8-1 Revision Record .......................i IM 12D03E02-02EN 1st Edition : Aug. 30, 2024-00...

  • Page 12: General Description

    <1. General Description> General Description The SC92 Portable Conductivity Meter is easy to carry, high-precision conductivity meter. Equipped with electrode degradation diagnostic functions, the meters enable easily accurate measurement, and a data storage function allows for confirmation of past measurement data at any time.

  • Page 13: Specifications

    <1. General Description> 1.1 Specifications Measurement: Conductivity or resistivity in aqueous solution Measuring range: Conductivity (minimum to maximum range) with sensor for; high purity water: 0-2.00 μS/cm to 0-200.0 μS/cm general purpose: 0-20.00 μS/cm to 0-200.0 mS/cm chemical resistance: 0-20.00 μS/cm to 0-200.0 mS/cm high conductivity: 0-200.0 μS/cm to 0-2.000 S/cm Resistivity;...

  • Page 14: Instrument Check

    Upon delivery, unpack the instrument carefully and inspect it to ensure that it was not damaged during shipment. If damage is found, retain the original packing materials (including the outer box) and then immediately notify YOKOGAWA sales office. n Checking the model and suffix code Check the model and suffix code on the name plate affixed to the back side of the meter and sensor cable as shown in Figure 1.1 Name plate example.

  • Page 15: Model And Suffix Codes

    <1. General Description> 1.3 Model and Suffix Codes SC92 Portable conductivity meter Model Suffix code Option code Description SC92 ················ ··············· Portable conductivity meter ··············· Connecting Without sensor sensors ··············· With sensor for high purity water measurement (cable length: 0.75 m) ··············· With general-purpose type sensor (cable length: 0.75 m) ···············...
  • Page 16 <1. General Description> Name Description Remove only when cleaning.(only for the sensor for high purity water measurement, Protective cover general-purpose sensor) Thermal resistance 80°C plastic Sensor body The material is glass for chemical-resistant type and high conductivity measurement. Latch To hold the sensor to the side of the meter. Insert the sensor into the latch from the top . Sensor grip Easy-to-hold grip Sensor cable...

  • Page 17: Operation Keys

    <1. General Description> Operation keys Name Function Switch from measurement mode to calibration mode CAL key Calibration start in calibration mode. Switch to measurement mode from others. MEAS key In automatic hold mode, the measurement value can be unfixed and a new measurement can start.

  • Page 18: Display Items

    <1. General Description> Display items Function Displays the current operation mode (Setup, Calibration, Measurement, Data mode) Battery level Icon Battery level 100% Low battery. Need replacement. BATT LOW See n Error messages . Measurement items such as COND (conductivity) and Res (resistivity). Show stability.

  • Page 19: Optional Accessories

    0.1 mol/l NaCl K9221ZA * 1 pcs solution for calibration 250 mL *: You can download the Safety Data Sheet (SDS) from the following website: https://www.yokogawa.com/library/. 1.6 Dimensions SC92 meter (when the back stand is up) Unit: mm IM 12D03E02-02EN...
  • Page 20 <1. General Description> SC92SN conductivity sensor Sensor for high purity water measurement General-purpose type sensor Unit: mm SC92SN-11-AA SC92SN-21-AA SC92SN-23-AA Approx. 0.75 m Approx. 0.75 m or Approx. 2.75 m ø19 ø19 ø17 ø17 Chemical-resistant type sensor Sensor for high-conductivity measurement Unit: mm SC92SN-31-AA SC92SN-41-AA...
  • Page 21 Blank Page...

  • Page 22: Basic Operations

    <2. Basic Operations> Basic Operations Before use, put batteries in the meter and connect the sensor. Before starting a measurement (Chapter 3), set (Chapter 4) and calibrate (Chapter 5) to your preference as needed. NOTE Operate the keys with your fingers. 2.1 Inserting the Batteries Put AA alkaline batteries into the meter.

  • Page 23: Connecting Sensor

    <2. Basic Operations> 2.2 Connecting Sensor Connect a conductivity sensor to CH2. Connectable one is SC92SN. It is no problem to connect the sensor while the power is ON. Connect the sensor to the meter properly as follows. (1) Align the slot of the electrode connector with the pin of the electrode connector on the meter and insert it.

  • Page 24: Changing Operation Mode

    <2. Basic Operations> 2.3 Changing Operation Mode You can change the operation mode to four available modes depending on the purpose of use. The status icon indicates the current mode. Icon Name Function Chapter Perform various setup key in the measurement mode to go to the setup mode. Setup mode Press the SET Press the SET...

  • Page 25: Saving Data

    <2. Basic Operations> 2.4 Saving Data In a measurement mode, press the ENT key. appears and the displayed data are saved. The measurement item, temperature, and measured value data are saved. The data number (LOC: location number) is displayed, then automatically the screen returns to the previous display.

  • Page 26: Measurement Mode (Meas)

    Cell constant (CELL) . In Auto Hold mode, press the MEAS key during measurement mode to cancel HOLD l How to change the measurement parameter SC92 can measure both conductivity and resistivity. When in measurement mode, press the MODE key to switch measurement parameters. Precautions •...

  • Page 27: How To Measure

    <3. Measurement Mode (MEAS)> How to measure (1) Remove the cap of sensor when the sensor has one. (2) To avoid measurement errors, fully immerse the sensor in the sample until the liquid level reaches the air vent (bubble outlet). Air bubbles on the electrode element may also cause measurement errors.

  • Page 28: Temperature Compensation

    <3. Measurement Mode (MEAS)> Temperature Compensation There are two types of temperature compensation: automatic temperature compensation (ATC) and manual temperature compensation (MTC). Automatic temperature compensation (ATC) measures the temperature of the solution and automatically compensates for it by connecting the temperature sensor (temperature connector) built into the sensor to the meter.
  • Page 29 Blank Page...

  • Page 30: Setup Mode (Set)

    <4. Setup Mode (SET)> Setup Mode (SET) Set up various settings. Press the SET key to go to the setup mode. is displayed. NOTE Press the MEAS key to return to measurement mode after setting. In the setup mode ( is displayed), press the SET keyto return to the previous screen.

  • Page 31: Cell Constant (Cell)

    <4. Setup Mode (SET)> 4.1.1 Cell constant (CELL) Set the cell constant. The setting range is 0.010 to 20.00 cm The cell constant varies from sensor to sensor even if they are of the same type (standard cell constant is the same). So the unique cell constants of the sensor to be used must be set. Set the cell constant indicated in the model name and cell constant shown on the sensor cable.

  • Page 32: Unit (Unit)

    <4. Setup Mode (SET)> 4.1.2 Unit (UNIT) Select the unit of conductivity. Select from S/cm (default) or S/m. (1) Press the SET key. (2) When the P1 COND screen appears, press the ENT key. (3) When the P1.1 CELL screen appears, press the up key once to go to the P1.2 UNIT screen and press the ENT key.

  • Page 33: Temperature Compensation Factor (T.cff)

    <4. Setup Mode (SET)> 4.1.4 Temperature compensation factor (T.CFF) Temperature characteristics of conductivity depend on solution. The temperature compensation factor can be set according to the solution to be measured. Set the temperature compensation factor. The setting range is 0.00 to 10.00 %°C. The default is 2.00 %°C.
  • Page 34 25°C is set to 1. To compare concentrations, conductivity at a certain temperature (reference temperature) is required. SC92 can measure the temperature of the solution with an embedded temperature sensor and automatically convert it to the reference temperature. How to obtain temperature compensation factor If the temperature compensation factor of the solution to be measured is unknown, set the temperature compensation factor to 0.00, measure the conductivity at two liquid temperatures in...

  • Page 35: Reference Temperature (T.ref)

    <4. Setup Mode (SET)> 4.1.5 Reference temperature (T.rEF) Set the reference temperature. The setting range is 15.0 to 30.0°C. The default is 25.0°C. SC92 has a reference temperature conversion function that allows conversion to a set reference temperature. (1) Press the SET key.

  • Page 36: Calibration Data Clear (C.clr)

    <4. Setup Mode (SET)> 4.1.6 Calibration data clear (C.CLr) Delete calibration data. (1) Press the SET key. (2) When the P1 COND screen appears, press the ENT key. (3) When the P1.1 CELL screen appears, press the up key five times to the enter P1.6 C.CLr screen.

  • Page 37: Data Setup (Data)

    <4. Setup Mode (SET)> 4.2 Data Setup (DATA) Using Data setup function of the meter, you can: • Set data log interval • Erase data log 4.2.1 Data log interval setup (LOG) The Data Log function allows you to automatically save data at time intervals set here. You can set the time interval from 2 to 999 seconds.

  • Page 38: All Data Clear (D.clr)

    <4. Setup Mode (SET)> 4.2.2 All data clear (D.CLr) Erase all stored data. (1) Press the SET key. (2) When the P1 COND screen appears, press the up key once to go to P2 DATA screen and press the ENT key. (3) When the P2.1 LOG screen appears, press the up key once to go to P2.2 D.CLR screen, and press the ENT key.

  • Page 39: Stability Check (Stbl)

    4-10 <4. Setup Mode (SET)> 4.3.1 Stability check (STBL) Set auto stable mode, auto hold mode, and real time mode for stability evaluation. Mode State When the measured value meets the stability criteria, the will change from AS (Auto Stable) blinking to lit and the measured value will be fixed. If the value falls outside the stability criteria, the will blink again.

  • Page 40: Auto Power-Off Time Setup (A.off)

    4-11 <4. Setup Mode (SET)> 4.3.2 Auto power-off time setup (A.Off) Set the time to automatically turn off the power (auto power off) when no key operation is performed for a certain period of time. The time can be set from 1 to 30 minutes. The initial value is 30 minutes. Setting “----”...

  • Page 41: Reset The Meter (R.set)

    4-12 <4. Setup Mode (SET)> 4.3.3 Reset the meter (r.SET) Reset to factory default settings. The power is automatically turned off after the resetting. (1) Press the SET key. (2) When the P1 COND screen appears, press the up key twice to go to the P3 GEN screen and press the ENT key.

  • Page 42: Calibration Mode (Cal)

    <5. Calibration Mode (CAL)> Calibration Mode (CAL) In the calibration mode, Auto Stable mode (AS) is activated. Even when Stability check mode of the measurement mode is set to “Auto Hold” (AH) or “Real Time” (RT), the calibration mode forces the unit into the Auto Stable mode (AS). NOTE Press the MEAS key during calibration (...

  • Page 43: Auto Calibration

    <5. Calibration Mode (CAL)> NOTE When calibrating multiple points, first calibrate with a solution of low conductivity and then with one of high conductivity. Calibration in the reverse order may result in incorrect calibration, because if the sensor is not cleaned enough, the residual high conductivity solution will dissolve into the low conductivity solution and change the conductivity of the low conductivity solution.

  • Page 44: Manual Calibration

    <5. Calibration Mode (CAL)> Manual calibration After immersing the conductivity sensor in the solution, press the CAL key. The calibration method (MAN) being set is displayed. blinks, and the stability check of the measured value begins. Wait until the value stabilizes: goes from blinking to lit.

  • Page 45: Temperature Calibration

    <5. Calibration Mode (CAL)> 5.2 Temperature Calibration Temperature calibration can be performed in automatic temperature compensation (ATC) mode. After immersing the sensor to be calibrated in temperature-controlled water in a thermostatic bath, adjust the sensor’s temperature to match that of a reliable thermometer. Always perform the temperature calibration with the temperature connector connected.

  • Page 46: Data Mode (Data)

    <6. Data Mode (DATA)> Data Mode (DATA) In the data mode, you can check the data (measurement data and calibration data) stored in the internal memory. See 2.4 Saving Data on how to save measurement data. n How to check saved data Press the MEAS key to return to the measurement mode. Measurement data Press the DATA key during a measurement mode to display the saved data.
  • Page 47 Blank Page...

  • Page 48: Storage And Maintenance

    <7. Storage and Maintenance> Storage and Maintenance This section describes storage and maintenance of the meter and conductivity sensors. CAUTION • Do not leave expired batteries in the meter. The batteries may leak and cause the instrument to fail or not operate properly. •...

  • Page 49: Meter Maintenance

    <7. Storage and Maintenance> 7.2 Meter Maintenance n How to clean the meter • When the meter is dirty, wipe it off gently with a soft, dry cloth. If the stain is severe, wipe it off gently with a cloth moistened with alcohol. • Although the body is made of solvent-resistant materials, it is not resistant to all chemicals. Do not immerse the instrument in solutions of strong acids, strong alkalis, etc., or wipe the instrument with such solutions.

  • Page 50: Sensor Maintenance

    <7. Storage and Maintenance> 7.3 Sensor Maintenance This section describes general care and storage instructions for conductivity sensors. n How to clean the electrodes Contamination adhering to the electrode area affects the cell constants, impairing accurate measurement. Immediately after measurement, wash the electrode with clean water (e.g. tap water) to remove any adhering contaminant.
  • Page 51 Blank Page...

  • Page 52: Trouble Shooting

    ● Battery expired Insufficient maintenance ● Incorrect cell constant setting ● Electrode contamination ● Low insulation resistance of connector Failure Contact Yokogawa. Figure 8.1 Causes of abnormalities Error messages If an error listed below appears during use, check the remedies in Table 8.1. Table 8.1...

  • Page 53: Other Trouble Shooting

    Connect the sensor correctly. Sensor is not connected properly. measured value. Replace the sensor. Sensor is broken. No response Contact YOKOGAWA. Instrument defect Sample is out of the measurement Use a sample within the measurement range. range. The measured Replace the sensor.

  • Page 54: Revision Record

    Revision Record SC92 Portable Conductivity Meter Manual Title : Manual No. : IM 12D03E02-02EN Aug. 2024/1st Edition Newly published Yokogawa Electric Corporation 2-9-32 Nakacho, Musashino-shi, Tokyo 180-8750, JAPAN http://www.yokogawa.com/ IM 12D03E02-02EN 1st Edition : Aug. 30, 2024-00...
  • Page 55 Blank Page...

Table of Contents