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5.1. LCD Display
1
2
11
10
5.2 Trend Chart
The trend chart (1) displays the past readings for CO
That can be toggled by using DOWN key: CO
4
5.3 Trend Chart Zoom
Below is a table that show the available Zoom Levels for all parameters, as well as the duration of
each division for corresponding Zoom Levels:
Zoom Level
Time Per Division
(Time Span) (11)
1MIN (minute)
5sec /div
1HR (hour)
5m/div
1Day (day)
2h/div
1WEEK(week)
0.5d/div
Using UP will toggle the available Zoom Levels for each parameters. Note that in addition to the Zoom
Levels for each paramete.
8
3
4
1. CO
/TEMP/RH Chart
5
2
2. Max Reading of Chart
3. Min Reading of Chart
4. Micro SD Card
6
5. Audible Alarm On/Off
6. Date and Time
7. Temperature Reading
8. RH Reading
7
9. Main Menu
10. CO
-Reading
2
11. Zoom Level of Time
8
(indicates the chart's span
of time)
9
and temperture and RH parameters.
2
, TEMP, RH. As show below:
2
5.4 Max/Min
At the top right corner of the display, there are two numerical indicators: Max (2) and Min (3). As the
Zoom Level is changed, the Max and Min values will reflect the maximum and minimum values on the
11
chart of the selected CO
parameter. At startup, the unit will automatically display values for CO
2
5.5 Real Time
The real-time (6) display at the top right corner of LCD, user can adjust date and time by enter TIME mode.
5.6 SD Card For Logger
10
The device will record data logger by SD card while it existed. It's can record Date, Time, CO
Tempereture, RH, user can check and download logger by SD card reader.
5.7 Main Menu Functions
The Main Menu (9) functions can be toggled through by using MENU. If the main menu is not brought
up, the green bar will remain blank, leaving the UP / DOWN buttons to toggle between parameters and
Zoom Levels, respectively.
Pressing MENU once will bring up the main menu, with a flashing bar indicating the current choice.
To select the function, press ENTER when the bar flashing over the current choice. Note that after
1 minute if nothing is pressed, the Main Menu will disappear and the device will revert to the normal
state.
HOLD HOME
To revert to start up settings at any point, hold ENTER for 3 sec until an audible beep. The device will
revert to Home Setting, displaying "Back Home done." Note that this is not the same as Restore to
factory settings.
Below is a table showing what main menu selection is made by pressing MENU multiple times as
well as their functions. Note that the device will display "Done," followed by the confirmed selection if
selected correctly.
Function
Directions
ALARM
When ALARM is set ON, an audible alarm will resound if the CO
varying levels (depending on border lever set) . Once ALARM is selected (by
pressing ENTER), use either UP or DOWN to toggle the selection from ON to OFF
or vice versa. Press ENTER one more time to confirm. A regular bell icon will be
displayed if alarm is on; a silenced bell icon will appear on the screen if the alarm
is set to be off.
TIME
This function allows the user to adjust the real-time, once TIME is selected, use
UP and DOWN to adjust the current date and time, Press ENTER to comfirm.
LOG
This feature allows the user to see historical data recorded in the log at any point
that is displayable on the chart. First make sure the desired Zoom Level is
selected before enabling this function. Then once LOG is enabled, use UP and
DOWN toggle between the time divisions to see all parameters' measurements for
each division. Press ENTER once more to exit this mode.
CALI
Use this function to calibrate your device with outside atmospheric CO
400ppm. Select this mode, hold ENTER for 3 seconds until a beep and the chart
will read "Calibrating", then place the device outside for 20min. To escape, press
MENU. Make sure the device is far from a source of CO
and not exposed to water.
,
2
level exceeds
2
level ~
2
, not in direct sunlight,
2
4
6
.
2
7
8
9
9
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