Manual Oxyguard Probe Model 7422A
Contents
1. Manual Oxyguard Probe Model 7422A This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules in the U S A These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense This equipment has been tested for compliance with European regulations as follows Application of Council Directive 2004 108 EC Standards to which Conformity is declared EN 61000 6 1 2001 EN 61000 4 2 1995 EN 61000 4 3 1995 EN 61000 4 4 1995 EN 61000 4 6 1996 ENV 50204 1995 Any changes or modifications to this equipment not expressly approved by the manufacturer Unidata Pty Ltd could void the user s authority to operate this equipment C C FE Revision History File name Revision Date Author amp Change Detail Checked Approved Previous version BX 2004 Unidata Manual 7422 Oxyguard Probe Issue 2 0 2007 AB CB JH MS KC Manual reformat 2013 a Unidata Manual 7422A Oxyguard Probe Issue 4 0 docx 3001152. IM CB Content Update Copyright Unidata Pty Ltd 2000 2013 All rights reserved No part of this publication may be reproduced transmitted transcribed stored in a retrieval system or translated into any spoken or computer language in any form or by any means Electronic mechanical magnetic optical chemical manual or otherwise without prior written permission of Unidata Pty Ltd 40 Ladner St O Connor Western Australia 6163 Manual Oxyguard Probe Model 7422A TABLE OF CONTENTS 1 0 INTRODUCTION as cscs cece ewes sete toes ceed det E seose sane edenacwnteesetseneteessce 1 2 0 PROGRAMMING STARLOG uu ccccecscececececcececececnencncecececececeeeneneneneneueasaseceaeesaeceneneneneneuseseaes 2 3 0 BOON 2 4 3 1 Calibration Procedure for Saturation Measurement arnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnnennenn 4 3 2 Calibration method for oxygen content mg l ccccccecseeeeeeeeeeeseeeeeceeeeeeeesseeaeeeeeesaaeeeeeeeeas 5 Unidata Manual 7422A Oxyguard Probe Issue 4 0 docx Contents 1 Manual Oxyguard Probe Model 7422A INTRODUCTION This manual is a supplement to the Owner s Manual supplied with the OxyGuard Dissolved Oxygen Probe It describes How to use the Model 7422A Oxygen Probe with Unidata dataloggers How to connect the oxygen probe to Unidata dataloggers How to make adjustments to the Starlog V4 Program The oxygen probe is manufactured by the company OxyGuard For info on
3. Probe Model 7422A 4 Double click on the Analogue Sensor 1 instrument and Edit as follows Generic current or volta i output sensor Taihoro Nukurangi Label Dissolved Oxygen Input Channel mJ AO 0 2 5 v Sensor Type User Defined v Scaling Options Scale to B Scale y mx c Sensor Output Voltage mv Current m NIWA Minimum g Taihoro Nukurangi Bean 37 2 Load Resistor 124 Units mg l Minimum g Maximum 100 Calibration Scalers Multiplier Offset 5 Select Log buffer and select log rate and the data to record s r File Window Scheme Instrument Channel Raw MIN M x TOT AVG avg EE oOo OOOO User Defined Dissolved Oxygen hw sj Main Butter h Log Interval Sub Interval Log Size 2 bytes Memon Time 179 days 15 10 hh mm Program Size 0 6 Kb Buffer Size Kb 5060 Linear Bi Circular Set Order Auto Order Unidata Manual 7422A Oxyguard Probe Issue 4 0 docx Page 3 Manual Oxyguard Probe Model 7422A CALIBRATION You should calibrate the oxygen probe before using it the first time and then at regular intervals say 3 to 6 months The calibration values are entered in the Starlog program Calibration involves immersing the probe in a fluid with known gas or oxygen content and then reading the output signal You can use saturated water or air while the probe is connected to a data logger To determine the calibration value for
4. TARLOG Launch StarlogV4 Select Scheme Editor from the menu Select New scheme and select logger type Double Click E z 6004 1 128K Starlogger models B and C i 6004 2 128K Starlogger with keyboard and LCD models 4 B and C i 6004 3 128K Starlogger with keyboard LCD and PCMCIA card slot models B and C i 6004D 1 512K Starlogger with LCD model D 6004D 2 512K Starlogger with keyboard and LCD model D S 6526 Starflow ultrasonic doppler flow recorder models B and C ae 6526G 512K Starflow ultrasonic doppler flow recorder model G 6529 3 Evaporation monitoring system 6529 3 51 2K Evaporation monitoring system w 51 2K logger 6536 4 Electrode Conductivity Recorder models B and C S 6536D 4 Electrode Conductivity Recorder model D je 7001 512K Prologger models and B 7001C 1Mb Prologger model C DWLR Digital Water Level Recorder od NAT 2001 to 2003 Models 4 B and C nf NATANMM NRM 2011 to 2017 Models C and D E Starlevel 6541 Encoder and integrated micrologger H SustemiNIWA SSY mm P StarlogV4 Sc ert ie Window we Y X Y ie Add Delete New Select Instruments and click on NIWA Instrument library choose analogue sensor Settings XY Instruments lt a Log Buffer lt 5 BD Se Instrument Library JG NIWA NIWA Instrument Library E Scheme 512K Starlogger
5. corrected accordingly Use the calibration tables in the Oxygen Probe manual to make these corrections Unidata Manual 7422A Oxyguard Probe Issue 4 0 docx Page 5
6. n the screen In air the reading should be 100 5 If the difference is too large choose Logger gt Test Display The voltage measured by the data logger will be displayed in a new window 6 Observe the channel number for the oxygen probe example A7 Hint when you move the new window the window with the actual measured oxygen value will also be visible Note the value of the particular channel number example A7 372 and divide this value by 10 The new calibration point will be 100 saturation 37 2mV Unidata Manual 7422A Oxyguard Probe Issue 4 0 docx Page 4 Manual Oxyguard Probe Model 7422A To enter the calibration point into the scheme 1 Select Screen Exit System Scheme Editor Window Instruments Edit 2 Choose the oxygen probe and note the old calibration value before substituting a new one 3 Correct the calibration value to account for water temperature barometric pressure and water salinity using tables from OxyGurad user manual 4 Change the entry under Output Max to the new calibration value without changing the entry under Scale a b Save the scheme Program the data logger and then choose Scheme Test mode to check the new entries 3 2 Calibration method for oxygen content mg l The measurement of the oxygen content mg l is influenced by the water temperature barometric pressure and the salinity of the water These parameters should be measured and the calibration value
7. storage and probe maintenance please refer to manufacturer web site http www oxyguard dk downloads a service The oxygen probe is a galvanic measuring element with built in temperature compensation Its output is proportional to the oxygen concentration The output signal is connected via a galvanic isolation module to a Unidata datalogger The connection cable supplied is 5m long It can be extended to 100m The wires are Pol Blue wire Pol Brown wire The sensor requires no external power supply little maintenance and Is very robust It can be used in water depths up to 100m the 5m cable can be lengthened The oxygen diffuses through a robust membrane that must be cleaned at regular intervals with a soft cloth General refurbishment is recommended every 1 to 2 years The sensor uses very little oxygen and also functions in flows of only 2cm sec In its standard form it measures the dissolved oxygen in terms of saturation standard By changing the membrane it can measure oxygen content in mg l optional The OxyGuard probe is easy to install It should be placed where there is some movement in the water 1cm s is enough at 7mg I and a water temperature of 13 C Unidata Manual 7422A Oxyguard Probe Issue 4 0 docx Page 1 nidata 2 0 1 2 File Connection Neon Camera Diagnostics Launch i Logger Starlog 4 Manual Oxyguard Probe Model 7422A Window File Window PROGRAMMING S
8. systems measuring saturation place the probe in air or in 100 air saturated water Ambient temperature barometric pressure and water Salinity should be taken into account when measuring the oxygen content mg l The output signal of the oxygen probe is proportional to the oxygen concentration It is approximately 40mV for the saturation type standard version and approximately 50mV in air for the mg l ppm type optional To measure this small voltage accurately the data logger must be set to a suitable measurement range With the Starlog V4 Program this happens automatically when you run the procedure Program Logger with Scheme Calibration Procedure for Saturation Measurement The calibration procedure is based on a single point measurement For systems measuring saturation this point is always 100 Just hold the sensor in the air let the sensor adjust to the ambient temperature and then determine the output signal The zero point is always zero 0mV Note the adjustment to ambient temperature can take from ten minutes to one hour 1 Take the oxygen probe out of the water wipe the membrane dry and hang it in the air away from direct sunlight if necessary wrap aluminium foil around it until it adjusts to the ambient temperature Connect the data logger to the computer and start the Starlog V4 Program Program the data logger with a Scheme and then select Scheme Test Mode Observe the output of the oxygen probe o
9. tage to flow conversion instrument RAT2EQN for NAT NMM logger Flow E OTA Raingauge Tipping bucket raingauge Climate QD PH pH Sensor Analogue pH Sensor Water Quality Ne FT Pressure Transducer Analogue pressure transducer Depth a PULSEFLOW Flow Meter Pulse output flow meter Irrigation RAT2EQN Stage to Flow Stage to flow conversion instrument RAT2EQN Flow C RH Relative Humidity Analogue RH sensor Climate ROLTOT Rolling Total Rolling total and average module Processing d SDIDEPTH SDI Pressure Transducer SDI 12 Pressure Transducer Depth D SEAPOINT Seapoint Seapoint with autorange and averaging Water Quality Pe SOLAR Pyranometer Solar Radiation Pyranometer Climate E SRIG Smart RIG Smart rain intensity gauge Climate 4 TEMP Temperature Temperature sensor Temperature Q TROLLPT Level Troll SDI 12 pressure transducer Depth D TURB Turbidity Analogue Turbidity transducer Water Quality UNIENC Unidata Encoder 6541 6531 and 6509 HSIO shaft encoder Depth Fi voLpRoP VOLPROP Volume proportional sampling instrument Hydro MT WINDDIRN Wind Direction Wind direction instrument Climate of WINDSPEED Anemometer Wind speed instrument Climate p 4 WINDSTATS Wind Statistics On logger calculation of wind means standard deviations and maximums Climate Unidata Manual 7422A Oxyguard Probe Issue 4 0 docx Logger Channels Instruments Starlogger Logger Instrument AN Analogue Sensor 1 Generic current or voltage output sensor Manual Oxyguard
10. with Keyboard v CatCode Instrument Description F mm SCHANRELAY Power Switcher NIWA 8 channel relay switcher Control Air Sampler Air sampler system configuration instrument Control dl AP hd E larro g larms motitic ation ammunicatan SD ANALOGUE Analogue Sensor Generic current or voltage output sensor ensor AQUAFLEX Aquaflex Soil moisture sensor Climate earo Barometric Pressure Analogue barometric pressure sensor Climate 8AROMSL MSL Correction Convert BP to Mean Sealevel Pressure Climate v g BATT External Supply Logger supply voltage all loggers Utility CRIOSDITRANS SDI Transfer CR10X SDI 12 transfer instrument for more gt 740 channels USER d DO DO Sensor Analogue dissolved oxygen sensor Water Quality DTS DTS 12 DT5 12 SDI 12 Turbidity probe with wiper XML Instrument QD EC Conductivity Sensor Analogue Conductivity Sensor Water Quality 4 EVENTLOG Event Log Log status channels on user event Diagnostics yu FLOSYS Flosys Flosys data retrieval speed up code Communications FLOWTOT Flow Totalizer Flow totalizer instrument USER E HEADS Flow to heads Convert Flow to heads x0 0353147 System INSTPOWER Instrument Power Instrument power controller Control ey KENC Kainga Encoder Kainga Shaft Encoder Depth P Lear Leaf Wetness Analogue Leaf Wetness Sensor Climate x M8110 Tait M8110 Radio modem automatic configuration instrument Comms ay MEA2062 MEA2062 SDI 12 high resolution analogue interface FE NRAT2EON Stage to Flow S
Download Pdf Manuals
Related Search