Line of Sight Infrared Hydrocarbon Gas Detector AutroPath HC800 , 116-P-HC800/IGB, Rev. A, 2016-03-03
P/N 95-8744, v4.2 , rev. 3/16
Autronica Fire and Security AS
Page 24
6. Install the Alignment Tool onto the receiver mod-
ule by inserting the captive thumbscrews into the
threaded holes on the faceplate. See Figure 24.
Ensure that the alignment tool is properly attached,
that the eyepiece is accessible, and that the
thumbscrews are completely tightened.
7. Using the Horizontal and Vertical Adjustment Bolts,
adjust the receiver module as required until the
cross hairs are centered as close as possible to
dead center on the window of the transmitter mod-
ule. Do not tighten the adjustment bolts at this time,
just snug down all adjustment bolts finger tight.
8. Slightly loosen the Vertical Adjustment Bolts so
that tightening the 4 Horizontal Locking Bolts does
not cause the Detector Mounting Assembly to bind
as it is being pulled up.
9. Tighten the 4 Horizontal Locking Bolts in an
opposing-alternating pattern. Torque each bolt to
200
in-lbs (22.6 N•m) maximum.
10. Tighten the Horizontal Adjustment Bolts to 200 in-
lbs (22.6 N•m) maximum,
being careful to tighten
each bolt evenly against each other to prevent torqu-
ing of the Detector Mounting Assembly. Tighten the
Locking nuts to 200
in-lbs (22.6 N•m) maximum
.
The mounting and alignment bracket is now secured
horizontally.
11. Verify alignment using the Alignment Tool. The
Vertical alignment may have shifted slightly due
to tightening of the 4 Horizontal locking bolts pull-
ing the Detector Mounting Assembly up. Adjust
the vertical alignment if needed using the Vertical
Adjustment Bolts.
12. When proper alignment has been achieved, tighten
the Vertical Adjustment Bolts and Locking Nuts to 90
ft-lbs (122 N•m) maximum, being careful to tighten
each bolt evenly against each other to prevent
torquing of the Detector Mounting Assembly. The
Receiver is now secured vertically and aligned with
the Transmitter.
13. Rotate the telescope alignment tool by 180° and
verify that the cross hairs are in the same position.
If the cross hairs are not in the same position, the
telescope alignment screws must be adjusted as
follows:
A. Adjust the telescope alignment screws until the
cross hairs are midway between the original
position (center of transmitter window) and the
current position (after the scope was rotated 180°).
See Figure 25.
B. Return the scope to its original position (rotate
180°) and repeat steps 7 through 13 until correct
alignment is achieved.
14. Repeat the alignment procedure for the transmitter
module (steps 3 to 12).
15. Re-check the alignment one final time using the
alignment tool and adjust as needed.
16. Remove the Alignment Tool and re-install the brow.
17. Bypass all external gas alarm devices that are
connected to the receiver outputs, and then apply
24 Vdc power to the modules.
18. Upon completion of warm-up mode (approximately
two minutes or less), the receiver should produce
a 4 mA output signal and a green LED indication.
If not, the required zero calibration step below may
resolve this issue.
19. For installations with module separation distances
between 5 and 40 meters, install the aperture as
described in the “Aperture Kit for Short Range
Applications” section.
20. Perform a zero calibration. (Refer to “Zero
Calibration” in the “Calibration” section of this
manual.) Any faults that may be present as a result
of the alignment process should be cleared.
Figure 24— autropath Hc800 with alignment tool installed
