3.
Should you decide at this point, not to store this particular measurement, just wait five seconds
and the display returns to measurement mode. You may also exit this routine by pressing the
MEAS
button.
4.
Press
STO
a second time, within five seconds of the first. The instrument then displays a brief
clearing
[- - -]
message, followed by the gas concentration measurement value for about three
seconds.
5.
The
[- - -]
message is displayed as this measurement value is stored.
6.
Repeat the above steps to store additional measurements.
If you stored the first value as sample
001
, the instrument automatically increases the next
storage location, and labels it sample
002
. You can increase or decrease this number by pressing
the
Up/Down Arrow
buttons. If you label a sample number the same as a previously stored
measurement value, the new measurement value overwrites the previously stored value.
Viewing stored measurements
1.
Put the instrument into standby (by pressing the
POWER
key).
2.
Hold down the
Up Arrow
button while switching the instrument back
ON
. The LCD displays a
sample location number.
3.
Scroll through the numbered sample locations of all the stored values using the
Up Arrow
and
Down Arrow
buttons.
4.
To view the actual gas concentration measurement value at a particular sample number, press
the
STO
button. The LCD now displays the stored value for that sample number.
5.
Press
STO
a second time to return to the next numbered location display, to continue scrolling or
view another stored value.
6.
To return to the measurement mode, put the instrument into standby and then back
ON
again
without holding down any additional buttons.
Storing and accessing measurements from a computer
If you have made measurements and stored them in the analyzer, you should be ready to bring them
into the Hach 3658 program for viewing, copying, saving and printing. Refer to
on page 14 for additional information on the Hach 3658 program.
Downloading stored values
To download the stored results from the instrument to the PC, choose the
DownLoad
data command
from the
Logger
menu.
The
DownLoad
window presents a display of the stored measurements from the instrument. The
window displays five columns of data:
• Sample (sequence number of the sample)
• Conc (concentration of the measured gas)
• Date (date of the measurement)
• Time (time of the measurement)
• Sample Description
The descriptions can be modified for your applications using the procedures described below.
Altering the sampling point descriptions
For help in identifying the locations of various sampling points that are stored by the instrument, you
may choose the
Sampling Point Description
command from the
Logger
menu to bring up the
dialog box.
The measurement values to be placed in positions 0 through 499 can be described however you
wish. Double-click on a particular position (or click
Modify
), then type a description in the box.
Choose
OK
when finished entering a description.
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