Myron L D-6 - Manual (Page 22)

C. Calibration Procedures
1. Conductivity or TDS Calibration
a. Rinse conductivity cell three times with proper standard, KCl,
NaCl, or 442 (ref. Cond/TDS Standard Solutions, pg. 39).
b. Refill conductivity cell with same standard. NaCl-14.00 is the
example used here.
c. Press or .
Then press .
The “CAL” icon will
appear on the display
(see Figure 4).
d. Press or to
step the displayed value toward the standard’s value (the
value 14.32 in Figure 4 would be stepped down to 14.00) or
hold a key down to scroll rapidly through the reading.
e. Press once to confirm new value and end the
calibration sequence for this particular solution type. If another
solution type is also to be measured, change solution type now
and repeat this procedure.
2. Resistivity Calibration
Resistivity is the reciprocal of Conductivity. Resistivity is calibrated only
if conductivity is calibrated for the same solution type.
3. Reloading Factory Calibration (Cond or TDS)
If calibration is suspect or known to be incorrect, and no standard
solution is available, the calibration value can be replaced with the
original factory value for that solution. This “FAC” value is the same
for all Dialysate Meters, and returns you to a known state without
solution in the cell. The “FAC” internal electronics calibration (which
bypasses the electrodes and cell) is not intended to replace calibration
with conductivity standard solutions. If another solution type requires
resetting, change solution type and repeat this procedure.
CAuTION: DO NOT reset the calibration values or any range of your
Digital Dialysate Meter™ to factory settings unless specifically
directed to by a member of the technical staff of your facility.
Factory settings are not a substitute for calibration with reference
solutions.
• ALWAYS perform dialysate checks with an instrument that has
been calibrated with reference buffers/solutions.
Figure 4
°C
NaCl
COND
CAL
µS
19