ESCO Technologies Labculture LB2 Series, Руководство пользователя

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2.2.3 Field Calibration
The purpose of calibration is to ensure the accuracy of the airflow display and alarm (if present). This involves
measuring airflow with reference instrumentation and establishing reference between airflow sensor(s) on the
BSC to the standard reference. Calibration should only be carried out by trained personnel. This section is
presents a brief overview of the calibration menu function. For more information, refer to test report.
MENU FIELD CALIBRATION
AIRFLOW CALIB
RESET CALIBRATION
2.2.3.1 Airflow Calib
This option allows proper calibration and operation of the airflow sensor alarm. There will be three points to
be calibrated, namely inflow fail point, inflow nominal point, and downflow nominal point.
2.2.3.2 Reset Calibration
This option allows the user to reset all value calibrated in the field and return it to the values gathered in
factory calibration.
2.2.4 Admin Settings
The admin menu allows you to change both FAN and ADMIN PIN. The reset blower, filter and UV hour meter
functions are usually used after you change the blower, filter or UV lamp as they can easily give you the
indication on when to do BSC maintenance. While the reset default function will return the options in the
settings menu to their factory settings.
2.2.4.1 New ADMIN PIN (default 0009)
ADMIN PIN restricts access to some of the more delicate menu functions, namely admin and field calibration,
which should only be accessed by a qualified personnel. User must enter four digits ADMIN PIN before accessing
these menus.
ADMIN PIN can also be used to switch to maintenance mode from ERR.MSWITCH and AIR FAIL! error
condition.
MENU ADMIN NEW ADMIN PIN XXXX
2.2.4.2 New FAN PIN (default 0000 - DISABLED)
FAN PIN restricts access to fan control and some parts of the menu, settings and set mode. User must enter
four-digit PIN before switching fan on or off. As such, it can restrict access to operating the BSC by
unauthorized personnel. It will also prevent unauthorized shutdown of the BSC when continuous operation is
required. Note that continuous operation is recommended for better safety. Fan PIN is also needed to disable
the alarm when the sash is fully raised and cleaning needs to be performed.
It is recommended that the Fan PIN be issued only to personnel authorized to use the BSC. With FAN PIN, the
user can access admin and set mode parts of the menu.
Setting the PIN to 0000 will disable this feature. The FAN PIN is disabled by default. When the FAN PIN is
disabled, the BSC can be turned on and off without requiring PIN, however to access the menu, the user is still
required to enter the FAN PIN (0000).
MENU ADMIN NEW FAN PIN XXXX