IOP:011.0D INSTRUMENT OPERATING PROCEDURE
Contents
1. will appear if the sensor is not fully connected to the meter and or an Err 882 message will appear if the RDO cap is missing or not properly installed I Il IV Calibration A Remove the end cap from the calibration sleeve and remove the sponge from the sleeve Saturate the sponge with distilled water and squeeze the excess water out of the sponge B Replace the sponge and the end cap C Turn power ON D Meter should now be in the measurement mode press f1 to select cal E Use the up or down arrows to highlight Air and press f3 to select F Rinse probe with distilled water blot dry with lint free tissue and attach the calibration sleeve G Wait about 5 minutes for the RDO sensor to equilibrate H Press f3 start I Wait for the DO reading on the meter to stabilize and stop flashing Once the reading is stable the meter will display Reading is stable Accept auto calibration value J Press f2 cal done K Press f1 meas to get into measurement mode Measurements A Make sure the meter is reading in mg l This can be changed with the Mode button B Rinse probe with distilled water and blot dry C If measurements are to be taken directly from stream or lake attach the stainless steel protective guard which also serves as a weight D Insert probe into sample or lower probe to desired depth and press Measure to start the measurement E When the AR icon stops flashing record the dissolved2. oxygen and temperature Press Measure again to start next measurement F When finished with final measurement rinse probe with distilled water and return probe to the calibration sleeve And turn off meter Storage A For short and long term storage leave the RDO cap on the sensor keep it in the calibration sleeve making sure to wet the sponge with distilled water and keep the sensor out of direct sunlight MAINTENANCE See instrument manual REFERENCE User Manual Thermo Scientific Orion Star A223 Portable RDO DO Meter Instruction Sheet and User Guide This procedure has been reviewed and approved by the undersigned representatives of the U S Fish and Wildlife Service and Fisheries and Oceans Canada me 1 N k l 4 Dea e REVIEWED APPROVED_ gt ME Field Supervisor U S DATE_1 7 13
3. IOP 011 0D January 3 2013 U S Fish and Wildlife Service Marquette Biological Station 3090 Wright Street Marquette Michigan 49855 U S A and U S Fish and Wildlife Service Ludington Biological Station 229 South Jebavy Drive Ludington Michigan 49431 and Fisheries and Oceans Canada Sea Lamprey Control Centre 1219 Queen Street East Sault Ste Marie Ontario P6A 2E5 Canada INSTRUMENT OPERATING PROCEDURE INSTRUMENT Dissolved oxygen meter MODEL Orion Star A223 MANUFACTURER Thermo Fisher Scientific Inc SERIAL AND PROPERTY NOS Model Number Location Serial number Property number Identifying number Orion Star A223 MBS 3205 1 PRECAUTIONS POTENTIAL INTERFERENCES Alcohols greater than 5 hydrogen peroxide commercial bleach gaseous chlorine and gaseous sulfur dioxide can affect readings Static electricity may affect reading Excessive water in calibration storage sleeve Note The RDO cap is only good for 365 days The countdown begins with first reading taken Err 881 will appear when the RCO cap has expired SAFETY No Special precautions PROCEDURES I Meter preparation A Battery installation or replacement of four alkaline AA size batteries l Use a screwdriver to remove the 2 screws on the back cover of the meter 2 Remove the battery chamber cover 3 Install the batteries according to the inscribed battery symbols on the inside of the battery chambe
4. r Make sure batteries are in correct polarity 4 Close the battery chamber cover and secure cover with the 2 screws 5 Press and release the POWER button on the front of the instrument The LCD will come on if not the replacement batteries may be bad 6 A battery life indicator will appear in the upper left corner of the display showing the remaining battery power 7 To turn off the unit press and hold the POWER button for three seconds B Initial Sensor Probe preparation 1 NOTE 1 Do not touch the bottom of the RDO cap optical window or spring contacts on the RDO sensor 2 The silicone grease that is supplied with the RDO sensor should only be used to lubricate the two O rings on the RDO sensor Do not fill the RDO cap with the grease 3 The RDO cap has an internal clock that counts down the 365 day lifespan of anew cap This countdown begins with the first measurement taken 2 Remove the protective shipping cap from the end of the RDO sensor 3 Lubricate the two O rings on the RDO sensor with a thin film of the silicone grease provided 4 Align the arrow on the RDO cap with the arrow on the RDO sensor 5 Slide and press the RDO cap onto the RDO sensor until the cap is flush with the sensor body Do not twist the RDO cap Once the cap is installed it should not be removed until a new cap is needed or troubleshooting needs to be performed 6 Connect the RDO sensor to the 9 pin input on the meter An Err 880 message
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