Hach FT660 sc Manuel D'utilisation De Base page 16

Figure 6 shows examples of good and bad methods of installing a
sample line into a process pipe.
Notes:
• Keep the sample inlet and drain tubing as short as possible to
minimize lag time of the sample flow.
• Control the flow rate into the instrument with a flow restriction device
on the sample line. Refer to
specifications.
Note: Flow rates greater than 750 mL/minute will cause the instrument to
overflow into the drain, decrease the performance of the bubble trap and cause
incorrect readings.
Figure 6 Sampling methods
1 Air
Operation
Using the sc controller
Before using the instrument with an sc controller become familiar with
the operating mode of the sc controller. Refer to the sc controller user
manual and learn how to use and navigate the menu functions.
Q-Pulse Id VM277
Vendor Manual Hach A090-070427-003 FT660 SC User Manual
Specifications on page 3 for flow rate
2 Sample flow
Configure the instrument
Use the Configure menu to enter identification information and display
options for the instrument and to change options for instrument settings,
data handling and storage.
1. From the Main menu, select Sensor Setup, [Select Sensor],
Configure.
2. Use the arrow keys to select an option and confirm. To enter
numbers, characters or punctuation, push and hold the UP or DOWN
arrow keys. Push the RIGHT arrow key to advance to the next
space.
Option
BUBBLE
REJECT
SIGNAL AVG
MEAS UNITS
EDIT NAME
SET
RESOLUTION
Active 09/09/2013
Description
Enable or disable bubble reject—Yes (default) or No
Bubble reject is an averaging algorithm that
compensates for higher readings caused by entrained
air coming out of the solution in the sample chamber.
Select no signal averaging or the amount of time for
signal averaging—no averaging, 6, 30, 60 or 90 (default)
seconds.
Select the measurement units to show on the display—
mNTU (default), mFTU, NTU, FTU, mg/L or Degree.
Change the name to show on the display for the
instrument. The instrument name can be a maximum of
12-digits in any combination of symbols and alpha or
numeric characters.
Note: The serial number of the instrument is the default
name.
Set the number of significant digits to show on the
display (default=3).
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