Myron L D-6 - Manual (Page 36)

WArNING: The case gasket MuST be flat and inserted all the way into
the groove on the top case with NO kinks or twists.
• An improperly seated case gasket will allow moisture to leak into
case that will damage the instrument.
Check the four screws.
• Each screw MuST have a small black O-ring around its shaft just
under the head.
• Take care not to lose or damage the O-rings.
Dry Instrument THOrOuGHLY. Remove the four (4) bottom screws.
Open instrument carefully. Carefully detach battery from circuit board.
Replace with 9 volt alkaline battery. Replace bottom, ensuring the
sealing gasket is installed in the groove of the top half of case.
Tighten each screw until snug in the order shown in Figure 30. Then
tighten each screw another ½ turn in the order shown in Figure 30.
NOTE: Though all calibration settings are protected
even during power loss or battery replacement, loss
of time and date may occur if battery is removed
for longer than 3 minutes (180 seconds).
C. Preserving pH/ORP Sensor Function (D-6)
It is important to read and follow the instructions found
in pH and ORP Practices to Maintain Calibration,
pg. 24. In addition to these precautions:
• DO NOT leave high pH (alkaline) solutions
in contact with the sensor for long periods of
time. This will damage it.
• Samples containing chlorine, sulfur,
or ammonia can poison the sensor.
• If it is necessary to measure the pH of any such solutions,
thoroughly rinse the pH/ORP sensor well and conductivity
cell with clean water immediately after taking the
measurement.
• DO NOT use a Digital Dialysate Meter™ to measure samples
containing substances that reduce silver, such as cyanide.
• These substances will damage the pH/ORP sensor.
D. pH/ORP Sensor Replacement (D-6)
WArNING: Only authorized members of your facility’s maintenance staff
should attempt pH/ORP sensor replacement. Complete installation
instructions are provided with each replacement sensor.
WArNING: After replacing the pH/ORP sensor of your D-6 Dialysate
Meter and PrIOr to putting it into use, ALWAYS perform a complete
calibration of the following measurement functions with reference
solutions/buffers:
• pH
Figure 30
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