YSI 5200A - Manual (Page 82)

YSI 5200A
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YSI 5200A
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Sensors
Menus →Timers→Feed Smart Timer→Feeder→Sensors
→Disabled/Enabled
→DO Low/High/DO % Change
→pH Low/High/pH % Change
→Temp Low/High/Temp % Change
Changes in water conditions affect the amount of food fish eat which in turn affects
fish growth. With the sensor feature enabled, the feed timer system will verify that
DO, temperature, and pH values are within user configured ranges. This verification
is done immediately prior to starting each feed duration in a feed cycle. If values
are reported that fall outside the acceptable configured ranges, the feed timer relay
energizes for a shorter period (user configured percentage) thereby reducing the
amount of food that is dispensed. Feed timer sensor ranges are independent of
sensor setup configuration ranges. For timed feed cycles, the feed interval for the
entire feed cycle is determined by duration of the first feed.
Example - The feed timer is configured as follows: sensor temperature low value
is 25.1oC, feed timer temperature change is 9%, timed feed mode, six feeds, daily
weight 2 units start time 8A, end time 9A, six 9.999 second feeds of .3333 units
each to occur at 9 minute 50 second intervals without sensor reduction. Prior
to 8A feed cycle, the start temperature value is reading 24.9oC. Feed duration of
9.999 seconds will be reduced by approximately 1 second (9%) because of the “out
of range” temperature value.
Configuring the 5200A
DO Low/pH Low/Temp Low
Enter the lower limit of the sensor range where no feed reduction will take place.
DO High/pH High/Temp High
Enter the high limit of the sensor range where no feed reduction will take place.
DO Change/pH Change/Temp Change
Enter the percent reduction in feed weight that will occur for “out of range” enabled
feed timer sensors. Results from all out of range sensors are added. To disable a
sensor value from affecting feed duration configure 0.0% as the % change for that
sensor.
Calibrate
Menus →Timers→Feed Smart Timer→Feeder→Calibrate
Calibrating the feeder is essential for proper operation of the feed timer system.
Feed timer calibration is required to establish the amount of food dispensed over
a certain period of time. The 5200A will base feed cycle duration times on the last
saved calibration value.
Calibrate Feed Smart Timer
1. Install and wire feed timer device - page 46.
2. Enable Feed Timer.
Menus → Timers→Feed Smart Timer →Feed Timer →Enabled
3. Assign feed timer relay.
Menus → Timers→Feed Smart Timer →Relay
4. Calibrate feeder.
Menus → Timers→Feed Smart Timer →Calibrate
5. At numeric keypad, enter test run time the feeder relay will energize.
Configuring the 5200A