Ph Sensor Setup - Hach FL1500 User Manual

1. Select Sensor Setup>Change port assignments.
2. Select the number of the sensor connector in the instrument where the sensor wires are installed.
3. Select the sensor name. Select OK.
The sensor name shows next to the selected port number.
4. Select Setup Port [1] (sensor name).
5. Complete the options in the Basic Settings menu.
Option Description
Bubble Changes the rate that bubbles come out of the bubbler line. Options: 1 to 5. Increase or
Rate decrease the bubble rate number until the bubble rate is approximately one bubble per
second.
Auto Purge Enables or disables the automatic purge option that cleans the bubbler line at selected
intervals. When enabled, set the interval when each purge will occur.
Note: To clean the bubbler line between intervals, use the manual purge option. Use manual
purge also to validate that bubbles come from the bubbler line outlet.
Sediment Adjusts the cross-section (area) of the flow channel for sediment in the flow channel when
area is used in the flow calculation. Enter the value of the vertical depth of the sediment in the
flow channel. Options: 0.00 to 25.40 m (0.00 to 999.99 in.).
Level Sets the level value to the current head (the level that contributes to flow) in the channel. Use
Adjust the level adjust option for weir installations when the bubbler line outlet is in the water. The
level adjust value is the vertical distance from the zero reference point to the water level. Level
adjust values are positive when the water level is above the zero reference point, or negative
when the water level is below the zero reference point. In a circular pipe, the level that
contributes to flow is the distance from the surface of the water to the invert (bottom) of the
pipe. In a flume the level that contributes to flow is the distance from the surface of the water
to the floor of the flume. Enter the vertical distance (0 to 999.99 in.) from the zero reference
point to the water level above the zero reference point.
Note: When the user enters a value for level adjust, the control instrument erases the sensor
offset value.
Sensor Adjusts the level measurement for applications where the bubbler line outlet is above or below
Offset the zero reference point. Use the sensor offset option for weir installations where the bubbler
line outlet is not currently in the water or in non-weir applications where the bubbler line outlet
is above or below the zero reference point of the channel. The sensor offset value is the
vertical distance from the bubbler line outlet to the zero reference point. Enter the vertical
distance (0 to 999.99 in.) from the bubbler line outlet to the zero reference point.
Note: When the user enters a value for sensor offset, the control instrument erases the level
adjust value.
6. Complete the options in the Flow Settings menu.
Option Description
Device Selects the type of flow device. Options: Area velocity, flume, manning, nozzle, weir.
Type Selects the shape or name of the device. Different options show for different devices.
Dimensions Sets the dimensions of the device. Different options show for different devices, e.g. diameter,
width, length, height, size, angle, slope, etc. Enter the values for the selected device.

pH sensor setup

Pre-requisites: Install the sensor in the process and the sensor cable in the logger before this task is
started.
Use the Sensor Setup menu to configure the pH sensor. To use the factory-set options for the
sensor, select Restore Defaults in the Sensor Setup menu.
1. Select Sensor Setup>Change port assignments.
2. Select the number of the sensor connector in the instrument where the sensor wires are installed.
3. Select the sensor name. Select OK.
The sensor name shows next to the selected port number.
32 English