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MAN0889_Issue 3_03/13
3. Installation and Operation
3.6.5 Initialising the Searchline Excel Cross-Duct Gas Detector
In this part of the procedure details about the gas detector must be entered so that the Interrogator can then
complete the commissioning of the gas detector using the correct data.
(1) Select CALIBRATE from the Main menu.
Press the ▲ and ▼ keys on the keypad to navigate through the menu options..
(2) Press
on the interrogator keypad to display the calibrate menu
(3) Select INSTALL from the calibrate menu.
(4) Press
on the interrogator keypad and the following is displayed:
The gas detector type cannot be changed.
(7) Press
on the keypad and the current path length setting in metres is displayed, e.g.
(8) Set the path distance (in metres, to the nearest 0.1metre) between the transmitter and receiver unit and
the reflector panel.
Use the ▲ and ▼ keys on the keypad.
Note:
Do not double the distance, enter only the duct width.
IMPORTANT – THE PATH LENGTH IS USED TO CALCULATE THE GAS READING. ENSURE THAT IT IS
ENTERED CORRECTLY
(9) Press
on the keypad and the following message is displayed:
When finished the interrogator displays the following message for at least three seconds:
The following message is now displayed:
No alignment adjustments are provided. If the mechanical installation is satisfactory Searchline Excel
Cross-Duct can now be initialised.
System Type
Duct Mount
Path Length
2.5
Self Test
Please Wait
Checks Passed
SIG:
TGT:
26
Searchline Excel Cross-Duct Technical Handbook
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