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1.0 OBJECTIVE
To lay down a procedure for operation of particle counter.2.0 SCOPE
The procedure is applicable for operation of particle counter “Met one 3400”.3.0 RESPONSIBILITY
Officer/ Executive - Quality Control4.0 ACCOUNTABILITY
Manager - Quality Control5.0 PROCEDURE
5.1 Logging in: Switch ON the main power, enter ‘Counter Navigation’ then enter ‘Factory’.
5.1.1 There are two methods to login, depending on
whether the 3400 has first been turned on or if another user is already logged
in.
• To log in after the Model 3400 is
initialized, touch the screen. When password protection is enabled, users must
log in to proceed.
• To login to the unit with another user
already logged in, touch the Lock icon to log out the previous user, then touch
the Lock icon again to login.
5.1.2 A login screen appears like the one. Touch the
Name field to enter the user name and a keyboard entry screen appears.
5.1.3 Enter the user name by touching the screen.
5.1.4 When the name is entered, touch the Enter
button on the screen.
5.1.5 Touch the Password field to invoke the
keyboard screen and enter the password via the touch screen.
5.1.6 Press Enter
5.1.7 If login is successful, the Main screen should
appear, similar to the one. If login is unsuccessful, a Login Failed message
appears and the password should be re-entered.
5.2. Taking counts
Always remove the
protective cap from the inlet tube before performing counts or damage to the
counter will occur.
5.2.1 If still in place, remove protective cap from
the inlet tube (on top of counter).
5.2.2 Make sure the Main screen display ‘Counter
Navigation’. Press ‘Sample’ on the screen.
5.2.3 To start counting particles, press the Run
icon, on the touch screen.
Particle counting
begins.
• The Run icon becomes a Stop icon, until the
count is completed.
• The display indicates the counts and any
other parameters measured.
Note: - Count or
environmental alarms will be indicated by red color and flashing text at the
bottom of the touch screen, as well as an audible alarm if one was set as
described in “Sounds Tab”.
5.2.4 The count stops automatically. To manually
stop counts, press the stop icon. When the count is complete, the total number
of particles counted during the count time displays as well as the values for
values for any other parameter measured (relative humidity, temperature, air
velocity).
Refer to adjust the settings, such as alarm limits, units of measurements, and time and date.
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