-3-
-4-
Key number
Key name and brief function
1
2
3
4
5
6
7
Power key[ ] : press to power on/off.
Operating measurement key [RUN]
(1)At the main interface, press to start data sampling.
(2)During the sampling period of 50s, other keys are
disabled and cannot operate. Only power key can function.
Enter key [ENTER]
(1)At the mode of historical record, press—confirm the page
number of the selected pages.
(2)At the mode of functional parameters, press—confirm to
enter function change.
(3)At the mode of functional parameters, press—confirm the
saved items after change.
SHIFT key [SHIFT]
(1)At the mode of historical record, press—select the unit’s
place, ten's place and hundred’s place of page number.
(2)At the mode of functional parameters, press—select the
functional parameter items to be changed.
Page up key [▲]
(1)At the mode of historical record, used to increase by 1 (+1)
and page up by one page.
(2)At the mode of functional parameters and at the change
state: used to increase by 1 (+1); switching unit and select
“yes” or “No”.
Page down key[▼]
(1)At the main interface, press in order to enter the historical
record→ the functional parameter.
(2)At the mode of historical record, used to decrease by 1 (-1)
and page down by one page.
At the mode of functional parameters and at the change state:
used to decrease by1 ( -1); switching unit and select “yes” or “No”.
Back key [BACK]
(1)At the mode of historical record and functional parameters,
press—back to the main interface.
(2)At the mode of historical record, when to change a parameter,
press—exit from the change.
Function setting operation
Function type Function items
Function setting operation
Historical
record
Page number:
Unit’s place/ten’s
place/hundred’s
place
Check historical record: at the main
interface, press [▼] key to enter historical
record mode; press [ENTER] key and the
current page is selected. At the moment,
press [▲] key or [▼] key to go through the
data. If you want to skip to certain page
directly, input the page number directly.
Press [SHIFT] key to select the unit’s
place, ten’s place and hundred’s place of
the page number. Press [▲] key to increase
the value by 1 (+1) and press [▼] key to
decrease the value by 1 (-1).
Particle unit:
piece/L, ug/m3
Change the particle unit: at the main
interface, press [▼] key twice to enter the
functional parameter mode, press [ENTER]
key to enter the change state. Press [SHIFT]
key to select piece/L or ug/m3. At the
moment, press [▲] key or [▼] key to select
your desirable unit and press [ENTER] key
to confirm. Press [BACK] key to return to
the main interface.
Time change
At the main interface, press [▼] key twice
to enter the functional parameter mode,
press [ENTER] key to enter the change
state. Press [SHIFT] three times to select
“No” in the item of “Time Rev”. Press
[▲] key or [▼] key to select “Yes”. Press
[ENTER] key to enter time change interface.
Press [SHIFT] key to select the items to be
changed. Press [▲] key to increase the
value by 1 (+1) and press [▼] key to
decrease the value by 1 (-1). Press [ENTER]
to confirm. Press [BACK] key to return to
the main interface.
Functional
parameters