HF scientific Micro200BW Turbidimeter - 0 -1000 NTU - Manual (Page 57)

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MICRO 200 BW 0 - 1000 NTU (5/05)
Rev. 3.1
JTU: Jackson Turbidity Units
LCD Liquid Crystal Display (screen) used
Display: to view the information available on
the MICRO 200 BW.
Main Menu: The major options for each of the
functions accessed by the “FUNC-
TION” keys.
NTU: Nephelometric Turbidity Units
Self Test: A function that the MICRO 200 BW
performs to check the internal ana-
lyzer voltages.
Set Alarm Setting the value at which an alarm
Point: will occur.
Set Selection of the time period used to
Average: average 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 select-
ing an option from the main menu.
Select: A function that alternates among fea-
tures 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 transmis-
sion of filter backwash water.
Baud: Rate of transfer of serial information.
Calibrate: Electronic adjustment of the instru-
ment 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 communi-
cations port used for connecting a
serial printer to generate hard copies
of measurements or to datalogging
equipment.
D to A: Digital to analog conversion. Used to
provide 4-20 mA and 0 - 10 V output
signals.
Digit Up: Command indicating an increment or
increase of the digit selection.
Digit Down: Command indicating a decrement or
decrease of the digit selection.
Display The set up of information to be
Parameters displayed on the LCD display.
Display: LCD display screen on the Analyzer.
Frequency: The number of cycles per second
(hertz), of an alternating current sig-
nal.
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).