Amprobe WT-50 User Manual
Amprobe WT-50 User Manual

Amprobe WT-50 User Manual

Dissolved oxygen water quality meter

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WT-50
Dissolved Oxygen
Water Quality Meter
Users Manual
• Mode d'emploi
• Bedienungshandbuch
• Manual d'Uso
• Manual de uso

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Summary of Contents for Amprobe WT-50

  • Page 1 WT-50 Dissolved Oxygen Water Quality Meter Users Manual • Mode d’emploi • Bedienungshandbuch • Manual d’Uso • Manual de uso...
  • Page 2: Dissolved Oxygen Water Quality Meter

    WT-50 Dissolved Oxygen Water Quality Meter Users Manual September 2009, Rev.1 ©2009 Amprobe Test Tools. All rights reserved. Printed in China...
  • Page 3 Limitation of Liability Your Amprobe product will be free from defects in material and workmanship for 1 year from the date of purchase. This warranty does not cover fuses, disposable batteries or damage from accident, neglect, misuse, alteration, contamination, or abnormal conditions of operation or handling. Resellers are not authorized to extend any other warranty on Amprobe’s behalf.
  • Page 4 WT-50 Dissolved Oxygen Water Quality Meter Probe connection & IrDA ports Operation keys LCD display Battery cover (rear side) DC adaptor port Tripod mount hole (rear side) USB port DO probe...
  • Page 5 Primary screen displays DO concentration Temperature display Date & Time display Memory counter Low battery indicator Units of barometric pressure Unit of salinity value Freeze data Stable readings indicator Calibration mode Memory Recall mode Memory max/min./average review POWR/SET KEY: Press key to turn on and off the meter. When the meter is off, hold down for few seconds to enter setting mode CAL/ESC KEY: Press to switch normal and calibration mode.
  • Page 6: Table Of Contents

    WT-50 Dissolved Oxygen Water Quality Meter CONTENTS SYMBOLS .......................2 UNPACKING AND INSPECTION ................2 INTRODUCTION .....................3 Features ......................3 OPERATION ......................3 Auto Power Off ....................4 Set Up ........................5 Calibration Mode .....................7 USB Interface Capabilities ................7 SPECIFICATION ......................8 MAINTENANCE AND REPAIR ................9 To Replace membrance ..................9 To Replace electrolyte solution ................10...
  • Page 7: Symbols

    • Always rinse the probe with deionized water or rinse solution for best accuracy. • Do not touch the membrance. UNPACKING AND INSPECTION Your Shipping carton should include: WT-50 Dissolved Oxygen Meter Dissolved Oxygen probe AAA batteries Teflon on membrane O-rings...
  • Page 8: Introduction

    INTRODUCTION Thank you for purchasing WT-50 Dissolved Oxygen meter. The meter measures DO concentration with temperature compensation, salinity and pressure correction, which is an accurate instrument for water quality testing. The handy size and extension probe enables on-site testing and the memory and PC link function are also ideal for data collection and processing.
  • Page 9: Auto Power Off

    8. Switch READY indicator on or off in SETUP P4.0. When ready indicator is switch on, READY icon is fleshing on the left of screen while measuring and stops when reading gets stable. 9. Press “MEM” to store the current reading with real time information. The display will flash several times and the memory counter will increase by one.
  • Page 10: Setup

    Setup The advanced setup mode lets you customize your meter. 9 parameters are available in this model. P1.0: Clear memory P2.0: Select Units P3.0: Coefficient settings P4.0: Ready indication P5.0: Auto power off time P6.0: Real time clock P7.0: Beta (membrane temperature coefficient) P8.0: View Calibration data P9.0: Reset To enter SETUP mode, hold down “POWER/SET”...
  • Page 11 P3.0: Coefficient settings In P3.0, press “ENTER” to go into P3.1 for changing barometric value in mmHg (default 760mmHg, see Fig. 4). Press “MODE” to increase and “MEM” to decrease the value. Press “ENTER” to P3.2 to change barometric value in kPA (default 101.3kPA) and P3.3 to change salinity value (default 0.0ppt).
  • Page 12: Calibration Mode

    Calibration Mode It is required to perform 100% air saturation calibration before every measurement. Check the stable reading in 15 mins after power on. If it exceeds 100%+/-0.5% range, please performthe calibration in the followings: 1. Place the probe in the air and turn on the meter. 2.
  • Page 13: Specification

    SPECIFICATION D.O.% Range 0.0~199.9% Resolution 0.1% Accuracy ±1.5% of F.S. D.O.ppm Range 0.00~19.99ppm Resolution 0.01ppm Accuracy ±1.5% of F.S. Temperature Range 0~50 °C / 32~122°F Resolution 0.1°C Accuracy ±0.5°C Salinity Range 0.0~50.0ppt Resolution 0.1ppt Pressure Range 500~1499mmHg/66.6~199.9kPA Resolution 1mmHg/0.1kPA Memory point 99 point Power supply 4pcs AAA batteries �...
  • Page 14: Maintenance And Repair

    MAINTENANCE AND REPAIR If there appears to be a malfunction during the operation of the meter, the following steps should be performed in order to isolate the cause of the problem. 1. Check the battery. Replace the battery immediately when the symbol “...
  • Page 15: To Replace Electrolyte Solution

    To replace electrolyte solution Replace the electrolyte solution when bubbles are seen around the sensor or membrane, meter appears to be less sensitive, or when an error message indicates that measurements are inaccurate. 1. Remove the screw nut, washer, and o-ring from the filler port with a screw driver. 2.
  • Page 16: Appendix

    Probe is not reading correctly • Check the membrane and replace with new membrane if it is clogged by something. • Clean the cathode and anode if they are tarnished. • Check for significant concentration of H2S , SO2 , H2 , Neon and NO..because some gases can interfere with DO readings.
  • Page 17: Msds Of Electrolyte

    MATERIAL SAFETY DATA SHEET OF ELECTROLYTE SECTION I - IDENTITY INFORMATION INGREDIENT: KBr Chemical Name: potassium bromide; bromide salt of potassium CAS No. : 7758-02-3 Manufacturer: Shanghai Guanghua Techonology Ltd. http://www.e-chem.com.cn Phone: +86 021-52176011 Email:chemol@hi2000.com Date Prepared: 2004-01-01 SECTION II -PHYSICAL/CHEMICAL CHARACTERISTIC Boiling Point: 1380 degree C / 2516˚F Melting Point: 730 degree C / 1346˚F Vapor Pressure: 0.13 kPa@795 degree C / 1463˚F...
  • Page 18 Materials To Avoid: Strong oxidizers, acids, and bromine trifluoride DISCLAIMER The above information is transferred to this format by Amprobe from the Material Safety Data Sheet supplied by the manufacturer identified in Section I. If you have any questions related to the material provided herein, contact the manufacturer directly at the phone number given in Section I.

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