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DOTX-45 Dissolved Oxygen System Part 6 – Configuration

DOTX-45 43 -

which the diagnostic system re-detects them. The

exception to this rule is the calibration failure. When a

calibration fails, no corrupt data is stored. Therefore, the

system continues to function normally on the data that was

present before the calibration was attempted.

After 30 minutes or if power to the transmitter is cycled, the

failure for calibration will be cleared until calibration is

attempted again. If the problem still exists, the calibration

failure will re-occur. Press ENTER to initiate view of the

highest priority failure. The display will automatically return

to normal after a few seconds.

PID Timer This function sets a timer to monitor the amount of time the

PID controller remains at 0% or 100%. This function only

appears if the PID controller is enabled. If the timer is set to

0000, the feature is effectively disabled. If the timer value is

set to any number other zero, a FAIL condition will occur if

the PID controller remains at 0% or 100% for the timer value.

If one of the relays is set to FAIL mode, this failure condition

can be signaled by a changing relay contact.

Press ENTER to initiate user entry mode, and the entire

value will flash. Use the UP arrow key to modify desired

value; range of value is 0-9999 seconds. Press ENTER to

store the new value.

Sim Out The Sim Out function allows the user to simulate the oxygen

level of the instrument in the user selected display range.

The user enters a ppm value directly onto the screen, and

the output responds as if it were actually receiving the signal

from the sensor. This allows the user to check the function

of attached monitoring equipment during set-up or

troubleshooting. Escaping this screen returns the unit to

normal operation. Press ENTER to initiate the user entry

mode, and the right-most digit of the value will flash. Use

arrow keys to modify desired value.

The starting display value will be the last read value of the

input. The output will be under control of the SIM screen

until the ESC key is pressed.

Note: If the HOLD function is engaged before the Sim Output

function is engaged, the simulated output will remain the

same even when the ESC key is pressed. Disengage the

HOLD function to return to normal output.

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Dot-x SERIES Spezifikationen Seite 44