YSI 5200A
77
YSI 5200A
76
is saved and the 30 second hold off period has passed, then the pH low range
relay will begin a new five minute dose cycle. The dose cycle does not dose
for the remainder of the timed dose cycle that was active when the calibration
menu was first entered. Instead, it begins a new dose cycle.
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Active Aux and Timer relays do not de-energize at calibration menu.
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The temperature reading is displayed at Conductivity, ORP, and pH calibra-
tion menus.
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A “Check probe” error message during a calibration indicates that the sensor
is unable to calibrate within the 5200A’s specifications. This may indicate that
the sensor needs to be serviced, the sensor is faulty, or a probe assembly or
sensor is improperly connected. See Connect Probe Assembly - page 60.
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The temperature sensor does not require calibration nor is it available.
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User-configured sensor names appear at the top of the calibration menu.
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Energized alarm relays for all systems de-energize when the front panel key
is pressed to enter the calibration menu. Alarm systems are not reset until
is pressed to return the instrument to the run screen.
Getting Ready to Calibrate
Use the calibration/storage cup, figure 4.5, for all 5562 sensor calibrations. To avoid
cross-contamination of solutions, rinse the calibration/storage cup between calibra-
tions. Additionally, rinse each sensor with a small amount of calibration solution
that can be discarded before placing the sensor in the calibration cup. Sensors
must be immersed in solution when calibrating Conductivity, pH, and ORP. The
recommended amount of calibration solution is provided in the sensor specific
calibration instructions.
Configuring the 5200A
Figure 4.5
Notes:
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Insert port plugs into unused sensor port(s) - figure 4.5.
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The sensor must be enabled to calibrate.
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If you use another container for calibration be sure to handle the sensors
will care to protect them from possible physical damage. (See YSI 5562
probe sensor guard - figure 3.12 on page 36 or YSI 5561 probe sensor
guard - figure 3.11 on page 35.) Use a ring stand and clamp to secure
the probe assembly.
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Older sensors may take longer to calibrate than new ones because the sensor
readings may take longer to stabilize.
Configuring the 5200A
