Dräger Pulsar 7000 Serie Notice D'utilisation page 55

7. Align the transmitter and receiver to one another. To do so, perform the following steps:
a. Open-path gas detectors only:
The left-hand alignment screw 1 or 2 must be loosened before the component can be aligned with the right-hand alignment
screw 1 or 2, and vice versa.
Gas warning systems with TX S:
i Align the transmitter and receiver so that the maximum signal strength (
ii Align the transmitter and receiver with the alignment screws (1 and 2) so that the measuring points of the transmitter
and receiver on the HART
The tolerance range of 30 scale divisions around 0 must not be exceeded after alignment (see the dashed line for TX S
in the figure on Page 54).
iii Carefully tighten the other alignment screws (1 and 2).
iv Tighten the 8 screws of the gimbal gradually. When doing so, check and ensure that the measuring points of the
transmitter and receiver on the HART
Gas warning systems with TX L:
i Align the transmitter so that the maximum signal strength (
ii Align the receiver with the alignment screws (1 and 2) so that the measuring point of the receiver on the HART
handheld terminal is as close to 0 as possible. The 4 measuring points of the transmitter should move towards the
centre.
The tolerance range of 30 scale divisions around 0 must not be exceeded after alignment (see the dashed line for TX L
in the figure on Page 54).
iii Carefully tighten the other alignment screws (1 and 2).
iv Tighten the 8 screws of the gimbal gradually. When doing so, check and ensure that the measuring points of the
transmitter and receiver on the HART
®
handheld terminal are as close to 0 as possible.
®
handheld terminal remain within the 30 scale divisions around 0.
®
handheld terminal remain within the 30 scale divisions around 0.
in the figure on Page 54) is achieved.
in the figure on Page 54) is achieved.
1
1
2
Operation
2
en
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