HF scientific Micro200BW Turbidimeter - 0-100 NTU User Manual
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MICRO 200 BW 0-10 & 0-100 NTU (05/05)
Rev. 3.4
LCD
Liquid Crystal Display (screen) used to
Display
view the information available on the
MICRO 200 BW.
Main Menu:
The major options for each of the functions
accessed by the “FUNCTION” keys.
NTU:
Nephelometric Turbidity Units
Self Test:
A function that the MICRO 200 BW per-
forms to check the internal analyzer volt-
ages.
Set Alarm
Setting the value at which an alarm will
Point:
occur.
Set
Selection of the time period used to aver-
Average:
age the display. Used to mitigate rapidly
changing readings.
Set Time:
Function used to Set the internal clock of
the MICRO 200 BW
Set Baud
Set the RS-232 information transfer rate.
Rate:
Standardize:
Calibration of the lowest value of water.
Sub Menu:
Menu selections offered after selecting an
option from the main menu.
Select:
A function that alternates among features
or selections.
Turbidity:
The measurement of light reflected by
particles suspended in a fluid.
GLOSSARY
Alarms:
Relay outputs that change when an alarm
setpoint has been exceeded.
Backwash:
A method of measuring the transmission
of filter backwash water.
Baud:
Rate of transfer of serial information.
Calibrate:
Electronic adjustment of the instrument to
known standards.
Cursor:
The LCD pointer indicating which digit or
figure will change.
Cuvette:
Glass container used to hold the sample to
be measured. It is placed in the optical well
of the turbidimeter.
Comm Port:
Serial RS-232 or RS-485 communications
port used for connecting a serial printer to
generate hard copies of measurements or
to data logging equipment.
D to A:
Digital to analog conversion. Used to pro-
vide 4-20 mA and 0 - 10 V output signals.
Digit Up:
Command indicating an increment or in-
crease of the digit selection.
Digit Down:
Command indicating a decrement or de-
crease of the digit selection.
Display
The set up of information to be displayed
Parameters:
on the LCD display.
Display:
LCD display screen on the Analyzer.
Frequency:
The number of cycles per second (hertz),
of an alternating current signal.
FTU:
Formazin Turbidity Units (see NTU)
Host
A computer that is used to acquire and
Computer:
collect information from the serial port of
one or more MICRO 200 BW analyzers
(up to 16, Ø through F, Hexametadecimal).
JTU:
Jackson Turbidity Units
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