Dräger Flame 1500

10 Instructions for use | Flame 1500
en | Mounting
NOTICE
Risk of damage to the device!
The cable entry of the flame detector is fitted with an internal stop at the bottom
of the thread. An internal IP washer is fitted to the stop to maintain ingress
protection. This will result in threads of the cable gland being visible.
► Do not over-tighten.
The installation and local regulations and standards determine the overall cable
specification. This section specifies suitable cable characteristics to ensure
correct operation of the flame detector.
The table below shows the absolute maximums for cable lengths based on an
18 - 32 Vdc supply. Do not ground any cable shields at the detector housing.
3.4 Installation
CAUTION
Risk of damage to the device!
The flame detector may be damaged by high voltage insulation tests and other
cable testing operations. It should only be installed after these tests are
complete. The detector electronics shall be protected from mechanical damage
and external sources of EMI such as X-rays, RFI and electrostatic discharge.
The detector should not face directly towards the sun.
► Do not drop or knock the enclosure as this may damage the detector
assembly.
► Only appropriately trained service personnel may open the enclosure.
Before installing the flame detector Dräger recommends to check the
mounting locations to ensure that no changes have been made during
construction that will affect detector coverage.
3.4.1 Mechanical installation
The mounting bracket allows the vertical orientation of the flame detector to be
adjusted from 0 to 45° and allows a horizontal rotation of up to 90°.
1. Fix the mounting bracket to a secure and stable mounting location using
8 mm fastenings (not supplied).
2. The flame detector can be mounted on both a horizontal and vertical
surface.
Number of flame
detectors
Maximum power
(W)
Maximum cable
length (m) with
1.5 mm
2
conduc-
tors (12 Q/km)
Maximum cable
length (m) with
2.5 mm
2
conduc-
tors (7 6 Q/km)
One – heater on 12 W @ 24 Vdc 500 780
One – heater off 3 W @ 24 Vdc 2000 3000
Cross-sectional
area (mm
2
)
American wire
gauge (AWG)
Typical conductor resistance per
km (3280 ft) DC Q/km at
(approximately) 20 °C
0.5 22 36
118 19
1.5 16 12
2.5 14 7.6