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Set global units of measure
Touch the Scroll Up or Down icon until Global Units is displayed and then touch it. Touch the desired units.
Touch the Confirm icon to accept the change.
Set temperature units of measure
Touch the Scroll Up or Down icon until Temp Units is displayed and then touch it. Touch the desired units.
Touch the Confirm icon to accept the change.
Touch the Main Menu icon. Touch the Inputs icon.
Inputs (see section 5.2)
Program the settings for each input
The S11 sensor input will be displayed. Touch it to get to the Details screen. Touch the Settings icon. If the name
of the sensor does not describe the type of sensor connected, touch the Scroll Down icon until Type is displayed.
Touch the Type field. Touch the Scroll Down icon until the correct type of sensor is displayed, then touch it to
highlight it. Touch the Confirm icon to accept the change. This will bring you back to the Settings screen. Finish
the rest of the S1 settings. For disinfections sensors, choose the exact sensor in the Sensor menu. For contacting
conductivity sensors, enter the cell constant. Select the units of measure. Enter the alarm set points and alarm
deadband. Set the default temperature that will be used for automatic temperature compensation if the tempera-
ture signal becomes invalid.
When finished with S11, touch the Return icon until the list of inputs is displayed. Touch the Scroll Down icon
and repeat the process for each input.
The S12 temperature input Element should be set correctly once the S11 sensor type has been set. If not, select
the correct temperature element and set the alarm set points and alarm deadband. Generic, ORP and disinfection
sensors do not have temperature signals and are preset to Unassigned.
To calibrate the temperature, return to the S12 Details screen, touch the Calibrate icon, and touch the Enter icon
to perform a calibration. If either input card is a Dual Analog Input card (4-20mA signal), then select the type of
sensor that will be connected. Select Fluorometer if a Little Dipper 2 will be connected. Select AI Monitor if the
device can be calibrated on its own and the W900 calibration will only be in units of mA. Select Transmitter if
the device connected cannot be calibrated on its own and the W900 will need to be used to calibrate in engineer-
ing units of measure.
If a flow switch or liquid level switch is connected, D1 through D12 (whichever one has the device connected
to it) should be set to DI State type (if no switch is connected, select No Sensor). Set the state that will possibly
interlock control outputs (refer to the Outputs settings to program which outputs, if any, will be interlocked by
the switch). Set the state, if any, that will result in an alarm.
If a contacting head or paddlewheel flow meter is connected, D1 through D12 (whichever one has the device
connected to it) should be set to that type (if no flow meter is connected, select No Sensor). Set the units of mea
-
sure, volume/contact or K factor, etc.
Calibrate the sensor
To calibrate the sensor, return to the list of inputs, touch the sensor to calibrate, touch the Calibrate icon, and
select one of the calibration routines. For disinfection and Generic sensors, start with the Zero Calibration. For
electrodeless conductivity, start with the Air Calibration. Refer to section 5.2.
Touch the Main Menu icon. Touch the Outputs icon.
