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SECTION 5,
continued
5.2.2.7
Using Dynamic Measurement Mode
Note: Check to ensure the proper
wavelength filter module is installed
before beginning measurement.
Note: Measurements in the Flow
mode of operation can be made with
Signal Averaging and Ratio modes
on or off. Signal Averaging and
Ratio should be on for most
measurements.
In the dynamic mode the Flow Valve opens, the cell fills and sample continues
to flow for the programmed fill time interval. The Flow Valve remains open,
and sample continues to flow for the programmed measurement time interval.
Measurements are completed on the flowing sample. At the end of the
programmed measurement time, the Flow Valve closes, and the final reading
is held in the display. The result of the measurement is transmitted to the
built-in printer (and/or through the RS232 output to an external printer or
computer if connected).
1. Select the desired settings for Signal Averaging on or off and Ratio on or off.
2. Select the printer and print interval desired.
Note: Set the printer to print periodically when using the dynamic mode of operation in
order to record the intermittent readings. For example, the print interval could be set to
print every 30 seconds during a measured flow.
3. Press the
key. The Flow annunciator lights and the display prompts
FLOW
either
(for static measurement) or
STAT?
4. Use the up or down arrow key to select
5. Set the fill time. The display shows
has been programmed previously). Press
setting. Or, use the right arrow key to select the digit to edit, then the up or
down arrow keys to edit the fill time. Press
6. Set the measurement time. The display shows
to accepted the displayed setting. Or, use the right arrow key to select the digit
to edit, and then the up or down arrow keys to edit the measurement time.
Press
to accept the new time. After
ENTER
opens and remains open during the programmed fill time and measurement
time intervals.
7. At the end of the measurement time the Flow Valve closes, the result of the
measurement is held in the display and transmitted to the built-in printer
(and/or through the RS232 output to an external printer or computer if
connected). The Flow annunciator flashes.
Note: The result of the measurement remains in the display until the
to exit the Flow mode or the
8. Press
to repeat the measurement without the fill time delay. The Flow
ENTER
Valve opens, and the instrument repeats the sample measurement for the
programmed measurement time. Then, the Flow Valve closes, and the last
measurement is locked in the display and transmitted to an active printer or
computer.
Note: Notice that the Flow Valve opens and flow resumes. Ensure there is sufficient sample
available if the measurement is repeated.
Note: To repeat the measurement cycle (including the programmed fill time), press the
key to exit the Flow mode, and press the
FLOW
Press
twice to accept the previously selected fill time and measurement time.
ENTER
58
(for dynamic measurement).
DYN?
, then press
DYN
(or an actual fill time if one
MM-SS FIL
to accept the displayed
ENTER
ENTER
MM-SS MEA
is pressed, the Flow Valve
ENTER
key is pressed to repeat the measurement.
ENTER
key to reenter the Flow mode.
FLOW
.
ENTER
to accept the new time.
. Press
ENTER
key is pressed
FLOW
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