[M-11] -- Relay Testing
This menu is used to test the relay operation of the transmitter, so that it is
convenient to conduct field linkage testing.
(1) Press “+” to select the menu item M-11.
(2) Press “ON” and the screen will display the menu for entering password.
(3) Enter the password (see Section 4.4).
(4) If the password is correct, then the device enters the next level menu of M-
11, and the screen displays “OFF”. If you press “+”, the relay status will inverse, i.e.
the original closed relay disconnects while the original disconnected relay closes. If
you continue to press “+”, the relay status will continue to inverse. Press “ON” or
“OFF” after you have finished the testing, then the relay will return back to the
original status and back to menu M-11.
[M-13] -- Manual zero calibration
This menu is used to manually calibrate the zero point. Note: Please use M-01 to
perform automatic zero calibration as far as possible. Manual zero calibration
through M-13 shall only be performed when automatic zero point calibration cannot
be completed through M-01 when unstable gas flow is caused by strong wind or
other factors at the site.
(1) Press “+” select the menu item M-13.
(2) Press “ON” and the screen will display the menu for entering password.
(3) Enter the password (see Section 4.4).
(4) If the password is correct, you will enter the next level of submenu M-13. At this
time, a flashing “0” will appear in the display, which indicates that manual zero
calibration is ready. Press “OFF” to cancel the manual zero calibration and return to
M-13 menu item. Press the “ON” key to complete the zero calibration and return to
the measurement mode automatically. At this time, you can see that the
concentration display has been reset to 0.
Note: Please make sure the transmitter has been energized for at least one hour
before attempting a zero calibration.
[M-14] -- Manual gain calibration
This menu is used for manual gain calibration. Note: Please use M-02 to perform
automatic gain calibration as far as possible. Manual gain calibration through M-14
shall only be performed when automatic gain calibration cannot be completed through
M-02 when unstable gas flow is caused by strong wind or other factors at the site.
(1) Ventilate the gain gas with the concentration level as shown in M-03 for one minute.
(2) Press “+” select the menu item M-14.
(3) Press “ON” and the screen will display the menu for entering password.
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