Users Manual
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1. WT 50 Dissolved Oxygen Water Quality Meter Users Manual e Mode d emploi e Bedienungshandbuch e Manual d Uso e Manual de uso AAMPROBE WT 50 Dissolved Oxygen Water Quality Meter Users Manual September 2009 Rev 1 2009 Amprobe Test Tools All rights reserved Printed in China 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 To obtain service during the warranty period return the product with proof of purchase to an authorized Amprobe Test Tools Service Center or to an Amprobe dealer or distributor See Repair Section for details THIS WARRANTY IS YOUR ONLY REMEDY ALL OTHER WARRANTIES WHETHER EXPRESS IMPLIED OR STAUTORY INCLUDING IMPLIED WARRANTIES OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY ARE HEREBY DISCLAIMED MANUFACTURER SHALL NOT BE LIABLE FOR ANY SPECIAL INDIRECT INCIDENTAL OR CONSEQUENTIAL DAMAGES OR LOSSES ARISING FROM ANY CAUSE OR THEORY Since some states or countries do not allow the exclusion or limitation of an implied warranty or of incidental or consequential damages this limitation of liability may not apply to you Repair All test to2. protective clothing chemical safety goggles rubber boots and gloves when handling Ventilate the operation room Do not get in eyes on skin on clothing Wash thoroughly after handling Storage Store in a cool dry place Away from fire or moisture SECTION VIII REACTIVITY DATA Stability Stable Hazardous Polymerization Will not occur 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 l If you have any questions related to the material provided herein contact the manufacturer directly at the phone number given in Section Amprobe does not in any way represent itself as an expert in the chemical described in this MSDS and assume in liability for any incomplete or inaccurate information contained herein 13 Visit www Amprobe com for e Catalog Application notes e Product specifications e User manuals Please Recycle
3. 9600 bps 8 data bits no parity SPECIFICATION D O Yo Range 0 0 199 9 Resolution 0 1 Accuracy 1 5 of 5 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 C EMC Conforms to EN61326 1 This product complies with requirements of the following EuropeanCommunity Directives 89 336 EEC Electromagnetic Compatibility and 73 23 EEC Low Voltage as amended by 93 68 EEC CE Marking However electricalnoise or intense electromagnetic fields in the vicinity of the equipment maydisturb the measurement circuit Measuring instruments will also respond tounwanted signals that may be present within the measurement circuit Usersshould exercise care and take appropriate precautions to avoid misleading results when making measurements in the presence of electronic interference 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 appears on the LCD 2 Review the operating instructions for possible mistakes in operating procedure Except for th
4. AND INSPECTION Your Shipping carton should include WT 50 Dissolved Oxygen Meter Dissolved Oxygen probe AAA batteries Teflon on membrane O rings Electrolyte solution Syringe needle Manual Hard carrying case 1 If any of the items are damaged or missing return the complete packag to the place of purchase for an exchange 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 Features Accurate dissolved oxygen measurement Salinity and barometric pressure compensation 100 air saturation calibration 99 point memory e Real time clock for data record e USB interface for data transmission OPERATION 1 Press POWER SET to turn and off the meter 2 Press MODEA to select DO scale between and ppm mg l w Perform 100 air saturation calibration before measurement See page 7 If the stable readings 15 minutes after power on are within 100 Yo 0 5 Yo then no need to do the calibration 4 Salinity and barometric pressure have effects on DO accuracy The meter default is 760mmHg in pressure and 0 Oppt in salinity Correct salinity valu
5. and press ENTER to confirm the setting P8 0 View Calibration data Press ENTER to go into P8 1 The LCD displays the latest calibration data Slope sensor sensitivity and time Enter P8 2 to view calibration temperature P9 0 Reset Press ENTER to go into P9 1 Select n No or y Yes with MODEA or MEM W for data reset to factory default Press ENTER to confirm selection Fig 4 Fig 5 Fig 6 166 mmHg Pit 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 Place the probe in the air and turn on the meter N When DO reading is stable press CAL Esc to enter calibration mode CAL icon will be flashing on the left side of LCD during calibration Fig 7 w Wait for about 5 seconds or until the reading is stable press ENTER to complete the calibration Or terminate the calibration by pressing CAL Esc 4 If it is calibrated correctly the meter will read approximately 100 If the calibration is failed ERR is displayed on the screen Repeat the calibration USB Interface Capabilities The USB cable and software optional kit are required to transfer data to a PC Install the USB driver in the software first before connection And the connecting protocol is
6. 600 Fax 425 446 6390 Fax 905 890 6866 Non Warranty Repairs and Replacement Europe European non warranty units can be replaced by your Amprobe Test Tools distributor for a nominal charge Please check the Where to Buy section on www amprobe com for a list of distributors near you Amprobe Test Tools Europe In den Engematten 14 79286 Glottertal Germany tel 49 0 7684 8009 0 Correspondence only no repair or replacement available from this address European customers please contact your distributor WT 50 Dissolved Oxygen Water Quality Meter AAMPROBE ws AMPROBE Dissolved AAMPROBE ws Meter Operation keys Battery cover rear side 7 Tripod mount hole rear side DO probe Probe connection amp IrDA ports LCD display DC adaptor port USB port Primary screen displays DO concentration Temperature display Date amp 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 While in calibration setting or recall mode press to return to previous mod
7. e HOLD REC KEY Press key to freeze current reading Press again to unlock Press gt 1 second to switch normal and recall mode When the meter is off press SET HOLD simultaneously gt 1second to disable auto sleep mode MODE UP KEY Press this key to switch and ppm or mg l In setting mode press to increase value MEMORY DOWN KEY Press to record current reading In setting mode press to decrease the value MAX MIN AV ENTER KEY Press to view the max min and average of the memory in recall mode In setting or calibration mode press to confirm and enter next step Press with HOLD REC key to activate backlight Vee 9 WT 50 Dissolved Oxygen Water Quality Meter CONTENTS EH EENG 2 UNPACKING AND INSPECTION 2 INTRODUCTION 3 Features USB Interface Capabilities 7 SPECIFICATION kw pak n doe 8 MAINTENANCE AND REPAIR AAA 9 To Replace 0 sen An Re piba da 9 To Replace electrolyte solution issus 10 10 1 MSDS of ELECTROLYTE SYMBOLS Caution Refer to the explanation in this Manual Conforms to relevant Australian standards Complies with European Directives Do not dispose of this product as unsorted municipal waste A AWarning and precaution Always rinse the probe with deionized water rinse solution for best accuracy Do not touch the membrance UNPACKING
8. e of water and barometric pressure in Setup P3 0 if the conditions of measuring site are different Immerse the probe head in the liquid and it display DO concentration on the LCD Automatic Temperature Compensation takes several minutes to equalize temperatures of the probe and liquid and get stable readings Press HLD REC measuring mode to hold the current readings HLD icon will be displayed on LCD Press the button again to resume measuring Press HLD REC and MNX AV simultaneously to activate backlight It turns off automatically after 10 seconds 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 Y to store the current reading with real time information The display will flash several times and the memory counter will increase by one Fig 1 10 Recall stored readings by pressing HLD REC for 2 seconds REC icon is flashing while reviewing data Fig 2 Press MODEA or MEMYW to scroll through the memory counter Or press MNX AV to view Minimum Maximum and Average reading of stored data Press HLD REC again for 2 seconds to exit data recall mode 11 Rinse the probe head with normal tap water after each measurement Fig 1 Fig 2 H M S IER Auto power off The meter turns off automatically after 40 minu
9. e replacement of the battery repair of the meter should be performed only by a Factory Authorized Service Center or by other qualified instrument service personnel The front panel and case can be cleaned with a mild solution of detergent and water Apply sparingly with a soft cloth and allow to dry completely before using Do not use aromatic hydrocarbons Gasoline or chlorinated solvents for cleaning To Replace Membrane Follow the steps below to replace a new membrane when the meter cannot be calibrated or the membrane is damaged M3 screw nut ixwasher a S li Solution filling Cathode port Anode amp Temp Oring Probe sensor guard Membrane lock cap Membrane lock ring Membrane Prepare a new membrane Unscrew the probe guard Remove the membrane from the membrane lock cap Remove the O ring and membrane lock ring Rinse the membrane cap and lock ring in the tap water Install a new O ring Install a new membrane Cover with the membrane lock ring and lock cap Reattach the probe guard and complete membrane replacement ON 9 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 Remove the screw nut washer and o ring from the filler port with a screw driver Flush out the current elect
10. mediately flush eyes with plenty of water for at least 15 minutes occasionally lift the upper and lower eyelids Get medical aid Skin Remove contaminated clothing and shoes Flush skin with plenty of water for at least 15 minutes Get medical aid Inhalation Remove from exposure to fresh air immediately If not breathing give artificial respiration If breathing is difficult give oxygen Get medical aid Ingestion If swallowed Do NOT induce vomiting Wash out mouth with water and give plenty of water to drink Seek immediate medical attention Special Fire Fighting Procedures Wear self contained breathing apparatus and protective clothing to prevent contact with skin and clothing Unusual Fire amp Explosion Hazards Emits toxic fumes under fire conditions SECTION V FIRE FIGHTING MEASURES Flash Point Not flammable Special Fire Fighting Procedures Wear self contained breathing apparatus and protective clothing to prevent contact with skin and clothing Unusual Fire amp Explosion Hazards Emits toxic fumes under fire conditions SECTION EXPOSURE CONTROLS PERSONAL PROTECTION Evacuate area Wear respirator protective clothing chemical safety goggles rubber boots and gloves when handling Sweep up but avoid raising dust Collect in a bag and hold for waste disposal Ventilate the area and wash spill site after materials pick up is compete SECTION VII HANDLING AND STORAGE Handling Wear respirator
11. ols returned for warranty or non warranty repair or for calibration should be accompanied by the following your name company s name address telephone number and proof of purchase Additionally please include a brief description of the problem or the service requested and include the test leads with the meter Non warranty repair or replacement charges should be remitted in the form of a check a money order credit card with expiration date or a purchase order made payable to Amprobe Test Tools In Warranty Repairs and Replacement All Countries Please read the warranty statement and check your battery before requesting repair During the warranty period any defective test tool can be returned to your Amprobe Test Tools distributor for an exchange for the same or like product Please check the Where to Buy section on www amprobe com for a list of distributors near you Additionally in the United States and Canada In Warranty repair and replacement units can also be sent to a Amprobe Test Tools Service Center see below for address Non Warranty Repairs and Replacement US and Canada Non warranty repairs in the United States and Canada should be sent to a Amprobe Test Tools Service Center Call Amprobe Test Tools or inquire at your point of purchase for current repair and replacement rates In USA In Canada Amprobe Test Tools Amprobe Test Tools Everett WA 98203 Mississauga ON L4Z 1X9 Tel 888 993 5853 Tel 905 890 7
12. ration error E21 The current temperature is out of 10 C of the temperature when doing 100 saturation calibration Perform 100 calibration again E31 A D error E32 IIC memory error APPENDIX Altitude Pressure chart Altitude Meter Ft Pressure mmHg 0 Sea level 760 152 500 746 305 1000 732 457 0 720 610 2000 707 762 2500 694 914 3000 681 1067 3500 668 1219 4000 656 1372 4500 644 1524 7 5000 632 1676 5500 621 1829 6000 609 11 MATERIAL SAFETY DATA SHEET OF ELECTROLYTE SECTION 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 11 PHYSICAL CHEMICAL CHARACTERISTIC Boiling Point 1380 degree C 2516 F Melting Point 730 degree C 1346 F Vapor Pressure 0 13 kPa 795 degree 6 1463 F Water Solubility Soluble Appearance Odor white granules with a bitter saline taste odorless SECTION III HEALTH HAZARD DATA Route Of Entry Inhalation Ingestion and skin absorption Health Hazards Inhalation may cause respiratory tract irritation Irritative to eyes and skin Harmful if swallowed May cause headache dizziness drowsiness and nausea SECTION IV EMERGENCY amp FIRST AID MEASURES Eyes Im
13. rolyte solution Rinse the electrode by injecting distilled or de ionized water into the filler port Gently shake the probe and flush out the water Use a syringe to refill the probe with electrolyte KBr solution from the sprue on the probe Refill slowly to ensure no bubble in the probe Reinstall the o ring washer and screw M3 screw nut 1xwasher 1xo ring 4 Sprue for solution filling TROUBLESHOOTING Can t power on Make sure you have connected the electrode to the meter and the electrode polarization time over 10 minutes Check the membrane to see if air is trapped under the membrane Make sure you press power key more than gt 0 3 Second Check the battery conditions and replace if necessary Move batteries away for one minute and then re install 10 Probe is not reading correctly Check the membrane and replace with new membrane if it is clogged by something e Clean the cathode and anode if they are tarnished e Check for significant concentration of H2S 5002 H2 Neon and NO because some gases can interfere with DO readings Display disappears Check whether the low battery indicator is displayed on before the display is disappeared if yes replace with new batteries Error code E 1 The probe is disconnected or damaged E 2 The value is underflow E 3 The value is overflow E 4 The original data that is related to this value error E17 100 saturation Calib
14. tes inactivity to save battery life Users can set up desired time intervals 20 30 40 60 90 120 minutes for the sleep function in SETUP P5 0 To override the auto power off function hold down POWER SET and HLD REC simultaneously to turn on the meter It shows nSL on the screen and then enters measuring mode in non sleep status 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 for some seconds to turn on the meter Press MODEA or MEMW to select parameters and press MNX AV ENTER indicates ENTER in the following instructions for parameter settings To exit any setting press CAL Esc Note 20 0 Print function is not available in this model P1 0 Clear memory In P1 0 press ENTER go into P1 1 Select n NO or y YES with MODEA or MEMW Fig 3 then press ENTER to confirm to clear all memories or not P2 0 Select Units In P2 0 press ENTER to go into P2 1 Select temperature unit F or C with MODEA or MEMW and then press ENTER to P2 2 for selecting DO unit in mg l or ppm Press ENTER again to confirm
15. the unit selection and return to P2 0 Fig 3 P3 0 Coefficient settings In P3 0 press ENTER to go into P3 1 for changing barometric value in mmHg default 760mmH g see Fig 4 Press MODEA to increase and MEMW 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 Press ENTER again to confirm the settings and go back to P3 0 Check pressure in different altitude See appendix P4 0 Ready indication Press ENTER to go into P4 1 and press MODEA or MEMW to switch Ready indicator ON or OFF Fig 5 P5 0 Auto power off time Press ENTER to go into P5 1 and select auto power off time with MODEA or MEM V The options 20 30 40 60 90 120 minutes Press ENTER to complete the setting P6 0 Real time clock In P6 0 press ENTER to go through P6 1 to P6 6 for date and time settings Y M D and H M S will show in turn and corresponding digits will be flashing for further change Press MODE A to increase and MEMW to decrease the numbers and press ENTER to confirm every setting P7 0 Beta membrane temperature coefficient In P7 0 press ENTER to go into P7 1 and it displays default Beta temperature coefficient of the membrane 4 8 on the screen Fig 6 If different membrane is used change the correct value with MODE A or MEMW
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