Myron L D-6 - Manual (Page 20)

• DO NOT return used samples to the storage bottle.
• This includes any solution poured into secondary containers for
use with syringes and pipettes.
• DO NOT use any solution that is past its expiration date.
B. Calibration Intervals
There is no simple answer as to how often you should calibrate an
instrument. Myron L Digital Dialysate Meters™ are designed to not
require frequent recalibration. The most common sources of error were
eliminated in the design, and there are no mechanical adjustments.
Still, to ensure specified accuracy, any instrument must be checked
against chemical standards occasionally.
NOTE: If you are using the Dialysate Meter to check dialysate
concentrations, you should check the calibration of the pH and
Conductivity functions at the beginning and end of each work day
or more often if required by your clinic’s internal procedures. Then
recalibrate if indicated by the table on page 18.
On the average, we expect calibration need only be checked monthly
for the Conductivity, RES, or TDS functions. The pH (D-6) function
should be checked daily to ensure the pH/ORP sensor is not broken
or damaged. Measuring some solutions will require more frequent
intervals (ref. Suggested Calibration Intervals, pg. 23).
C. Rules for Calibration of the Dialysate Meter
1. Calibration Steps
a. Starting Calibration
Calibration is begun by pressing while measuring Conductivity,
TDS or pH. Measuring continues, but the “CAL” icon is on, indicating
calibration is now changeable.
The reading is changed with the and keys to match the
known value. The calibration for each of the 3 solution types may be
performed in either conductivity or TDS mode.
Depending on what is being calibrated, there may be 1, 2 or 3 steps to
the calibration procedures.
Unless otherwise instructed by your clinic’s internal procedures, use
the following table to determine when calibration is indicated for specific
functions.
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Proper Handling of Reference Solutions continued from previous page