Single Range D-1 Manual
Contents
1. If this light fails to glow when the black button is pressed replace both batteries BATTERY REPLACEMENT Detach the battery connectors Pull on the plastic straps to remove the batteries Replace with fresh zinc carbon or alkaline 9 volt batteries Reinsert the plastic straps to secure batteries Replace the bottom cover CELL CUP Self conditioning of the built in electrodes occurs each time the button is pressed with a sample in the cell cup This ensures consistent results each time With some samples a small downward swing of the pointer is a result of this conditioning action This action is powerful and removes normal films of oil and dirt However if samples are allowed to dry in the cell cup a film will build up This film reduces accuracy When there are visible films of oil dirt or scale in the cell cup or on the electrode scrub them lightly with a small brush and household cleanser Thoroughly rinse out the cleanser and the meter is ready for accurate measurements SOLUTIONS INSIDE THE METER Your Dialysate Meter is a rugged instrument and will withstand dialysate exposure around its cell meter movement and switches However care should be taken to keep solutions from leaking in around the bottom cover It is not sealed to prevent condensation from forming Large amounts of calibration solution or dialysate will almost certainly damage the meter movement or electronics Such meters should be returned to the Myron L C2. Myron L Company Faulty instruments may be returned to us without prior permission METERS WITHIN TWO YEAR WARRANTY PERIOD Failures due to materials or workmanship will be repaired or replaced our option without charge if returned freight prepaid If failure is deemed by the factory to have been caused by abuse or tampering the following procedure will apply INSTRUMENTS CONTROLS OUT OF WARRANTY Diagnosis will be made and repairs completed providing the repair charges are 70 00 or less NOTE Actual repair charges may be less than this amount We will diagnose but not repair a returned meter and mail an estimate of charges if ANY of the following apply 1 Repair charges will be more than 70 00 2 You specifically request an estimate of required repairs and charges 3 The cost of required repairs exceeds one half the list price of a new instrument 4 The instrument is over ten years old Because of component changes and improvements such instruments can no longer be repaired NOTE Unrepaired meters are discarded unless you want them returned to you If so there is currently a 25 00 charge per unrepaired instrument to cover diagnosis and handling This warranty is limited to the repair or replacement of the Myron L Dialysate Meter only The Myron L Company assumes no other responsibility or liability 2450 Impala Drive Carlsbad CA 92010 7226 USA MYRON L COMPANY Printed in U S A pH Conductivity In
3. SINGLE RANGE DIALYSATE METERS Operation Instructions User Manual for Models D 1 2450 Impala Drive Carlsbad CA 92010 7226 USA Tel 760 438 2021 MYRON L Fax 800 869 7668 760 931 9189 COMPANY pH Conductivity Instrumentation WWW myro nl com Accuracy Reliability Simplicity DESCRIPTION This manual describes your Myron L D 1 meter tells you how to use it and how to keep it working accurately for many years Your Model D 1 single range Dialysate Meter is a compact instrument which operates on the principle of electrical conductivity It will quickly determine if dialysate concentrations are correct Its dial provides an expanded 11 15 millimhos millisiemens scale for accurate readings A unique feature of Model D 1 is the green color band above the dial This provides an immediate visual confirmation of whether or not the dialysate concentration is within the patient s safe zone The color band is adjustable and can be pre set by the doctor or technician for each patient Adjustment is made by turning the screw on the face of the meter This screw may be covered with tape or a label to avoid tampering The D 1 is 3 4 x 4 5 x 4 0 85 x 129 x 126mm and weighs less than one pound 0 45kg D 1 Meters are completely self contained The built in cell is automatically temperature compensated from 60 to 105 F 16 to 40 C They are powered by two 9 volt transistor batteries good for at least 2000 tests or one ye
4. ar shelf life A light bulb which glows when the black button is pushed serves as a battery reserve indicator The pictures in this manual show the major operating parts of your Myron L D 1 Dialysate Meter Handle your D 1 and identify these parts to become familiar with it Plunger Electrode Cell Cup Indicator Pointer Button USING YOUR METER NOTE Before measuring dialysate samples check the calibration of your meter using Myron L Company 14 0 millimhos Standard Solution see CALIBRATION 1 Fill the cell cup to just above the top electrode with a sample of the dialysate you want to test The dipper end of the cell plunger will deliver just the right amount Be sure hands are clean and dry to avoid contamination of the sample NEVER FILL THE CELL BY DIPPING THE METER INTO SOLUTIONS 2 Drop the plunger into the cell cup Lift it about half way out of the cell and drop it back in three or four times Discard the sample NOTE This procedure must be conscientiously performed for samples at working body temperature to avoid artificially low readings 3 Repeat steps 1 and 2 at least three times 4 Take another sample drop in the plunger and press the black button When the pointer stops IMMEDIATELY read and release the button 5 Repeat step 4 twice and record the last reading NOTE If using the safe zone color band and the reading is not within the band immediately confirm the calibra
5. e CELL CUP opposite Rinse the cell thoroughly and test the Standard Solution again If the D 1 Meter still does not indicate the correct value recalibrate it as described below TO RECALIBRATE THE METER 1 Remove the bottom cover using fingernails or a small screwdriver to loosen the front or rear edge Identify the Calibration Control see photo below so you can find it by touch while calibrating 2 Test another sample of the Standard Solution be careful to not splash solution inside the meter 3 Adjust the Calibration Control until the meter pointer indicates 14 0 AOR LAIR EERIE SIE SN Battery Strap Lower Electrode inside cell Calibration Control IMPORTANT The plunger enclosed with your Dialysate Meter has been calibrated specifically for this instrument If a different plunger is used the Dialysate Meter MUST BE RECALIBRATED with Standard Solution Make sure the plunger is completely seated in the cell cup ACCESSORIES STANDARD SOLUTION Your D 1 Meter has been factory calibrated with Myron L type 14 0 millimhos Standard Solution Myron L Company Dialysis Standard Solution is made with deionized water and reagent grade Sodium Chloride and is within 1 0 of Sodium Chloride reference solutions Quart and gallon sizes are available MAINTENANCE BATTERY CHECK Model D 1 has a battery indicator glow light visible through the small hole on the lower right hand corner of the meter face plate
6. ompany for repair If there are only a few drops inside the meter dry it as follows 1 Shake excess solution out of the inside of the meter 2 Dab the exposed surfaces dry with an absorbent cloth or tissue Avoid pushing any liquid into the Calibration Control or push button switch 3 Air dry the meter in a warm area with the bottom cover off Allow several hours for thorough drying If the dialysate entered through a leak in the case or cell or if the instrument shows erratic readings or other unusual behavior return it to the Myron L Company for servicing SERVICE lf your D 1 meter fails to operate properly 1 Check the glow light to make sure the batteries are good 2 Check the cell cup and electrodes to ensure they are clean Any contamination could alter the reading See MAINTENANCE Any service required other than battery replacement cleaning or calibration must be referred to the Myron L Company When returning an instrument please pack it securely and enclose a note specifying the problem The plunger should be included but DO NOT ship with plunger in cell damage could result ORDERING To order accessories or instruments contact your nearest stocking distributor or the Myron L Company WARRANT Y SERVICE Myron L Dialysate Meters have a limited two year warranty If your instrument fails to operate properly check the batteries and calibration If it still fails to function properly return it prepaid to the
7. strumentation Accuracy Reliability Simplicity I age Fax 800 869 7668 760 931 9189 www myronl com Specifications subject to change without notice Myron L Company 2001 W
8. tion of your D 1 with 14 0 millimhos Standard Solution see CALIBRATION 6 When you are finished with the meter RINSE THE CELL CUP with clean water preferably R O distilled or deionized CAUTION DO NOT use with samples hotter than 105 F 40 C The readings WILL NOT be accurate DO NOT splash solvents such as lacquer thinner acetone benzene or chlorinated solvents on the plastic case DO NOT fix or modify the meter That will void your warranty See SERVICE for details or consult Myron L Company DO NOT DIP THE INSTRUMENT INTO SOLUTIONS If liquid does get inside the instrument see MAINTENANCE for instructions on drying it olor Band ROOT ans 117 2 23 wr 15 hg MYRON L COMPANY DIALYSATE METER CALIBRATION ACCESSORIES STANDARD SOLUTION Myron L Company Standard Solution has a known conductivity and concentration of Sodium Chloride NaCl Your Dialysate meter was calibrated at the factory using our 14 0 millimhos 7 86 grams per liter NaCl Standard Solution You can keep your meter accurate by using the same Standard Solution CHECKING CALIBRATION 1 Test a sample of Myron L Company 14 0 millimhos Standard Solution CAUTION Throw the Standard Solution away as you use it Don t put the used samples back in the bottle 2 Ifthe D 1 Meter does not indicate the 14 0 millimhos shown on the Standard Solution bottle s label first clean the cell For directions on how to do this se
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