Myron L CTCIITD - Manual (Page 26)

3. TRANSFER STANDARD METHOD
For maximum accuracy of any Monitor/controller, the transfer
standard method should be utilized. Instead of removing the
entire Monitor/controller and sensor, and either returning it to
the manufacture or sending it to a third party laboratory for
recertification, the transfer standard allows quick recertification
and return to service — less down time. While being the most
accurate method it is also very easy to perform, and may be used
to calibrate ANY manufacture Monitor/controller — resistivity or
conductivity/TDS. This method still has the benefit of third party
verification, if so desired.
1. A high quality hand-held instrument, one capable of
accurate conductivity/TDS readings such as the Myron L
Ultrameter™, is calibrated using a standard solution, or if
so desired, sent to a third party laboratory for calibration
& certification. Preferably the standard solution should
be as close as practicable to the area of the Monitor/
controller operation, i.e. for a conductivity Monitor/
controller that is operating between 1500 and 2000µS,
the recommended Myron L standard solution is KCl-
1800.
2. Once the Ultrameter is calibrated, the process water is
measured.
3. Finally, the Monitor/controller is calibrated/adjusted to
match the value measured by the Ultrameter by adjusting
the Main CALibration control shown in figure V.A.1.
4. Turn power OFF.
5. Re-install front panel as described below in
“REASSEMBLY”.
REASSEMBLY
1. Carefully reinstall the front panel.
2. Reinstall the clear cover.
3. Reinstall the four (4) screws and tighten.
4. If so desired, install corner covers.
5. To operate, turn power ON.
C. PREVENTIVE CARE
The Myron L Company recommends that the following Preventive
Care procedures be observed.
1. Try to prevent exposure to excessive heat and moisture.
2. The main AC power source should be protected against
excessive voltage “spikes.”
3. Take care not to damage the Monitor or sensor during
handling.
NOTE: Daily, weekly or monthly maintenance schedules are
based upon the frequency of use and the severity of the CTCII
Chemical Treatment Controllers environment and operating
conditions.
4. Repeat the Check-Out procedures to verify satisfactory
operation and/or isolate possible troubleshooting
symptoms.
5. Check all cable connections to ensure that they are free
of moisture and contamination.
6. Inspect and replace damaged component boards and
cable assemblies.
7. Periodically remove, clean and inspect the Sensor.
CLEANING - clean clear cover with soap and water, and soft non-
abrasive cloth.
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