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DOTX-45 Dissolved Oxygen System Part 6 – Configuration

DOTX-45 36 -

Note: If the user will not be changing solution conductivity

dramatically during the calibration process, leave a default

setting of 00.50 mS/cm. For ultrapure water applications, set

this value to 0.00. For sea water applications, set this value

to 53.00.

Iout#1 Mode This function sets analog output #1 to either track PPM or

mg/L oxygen (default), % Saturation, or enables the PID

controller to operate on the oxygen input in either PPM,

mg/L, or % Saturation. Press ENTER to initiate user entry

mode, and the entire value will flash. Use the UP arrow key

to modify the desired value; selections include 1- for oxygen

tracking or 2-PID for oxygen PID control. Press ENTER to

store the new value.

AC OPERATED UNITS ONLY

*Iout#2 Mode This function sets analog output #2 for either temperature

(default) or oxygen. Press ENTER to initiate user entry

mode, and the entire value will flash. Use the UP arrow key

to modify the desired value; selections include 1-C/F for

temperature, or 2-ppm for oxygen, or 3-% Saturation. Press

ENTER to store the new value.

AC OPERATED UNITS ONLY

*Rly A Mode Relay A can be used in three different ways: as a setpoint

control, as a fail alarm, or as a HI-LO alarm band. The three

settings for Rly A Mode are CON, FAIL and AL.

The CON setting enables normal control operation for Relay

A, with settings for setpoint, hysteresis, delay and phasing

appearing in the CONFIG menu automatically. See Figure

6-3 for further details.

The FAIL setting enables the fail alarm mode for Relay A.

Relay A will then trip on any condition that causes the FAIL

icon to be displayed on the LCD. Using this mode allows the

User to send alarm indications to other remote devices.

The AL setting allows two setpoints to be selected for the

same relay, producing a HI-LO alarm band. In this mode,

Relay A will trip inside or outside of the band, depending

upon the Phase selected. See Figure 6-4 for further details.

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Dot-x SERIES Spezifikationen Seite 37