Dräger 83 17 990 Instrucciones De Montaje página 20

Technical data
3.3 Installing the Polytron 7000 with LON
Interface
With LON communication, up to 63 Polytron 7000 can be connected
as bus, star, ring or mixed to a 4-wire cable (Fig. G).
CAUTION
!
If installed in 4-wire technology, the transmitter has no
explosion protection. The transmitter must not be installed in
explosion-hazard areas! Explosion hazard!
1. Install the 4-wire connection cable in the cable gland, cut to length
and strip ends (approx. 80 mm).
2. Shorten any shielding present so short-circuits cannot occur.
3. To connect the cable: Fix in the terminals on the 4-pin connection
terminal – observe polarity (Fig. E, item 1).
4. Push the connection terminal back into the holder.
5. Fix cable in mount.
6. Replace the rain cover (dust and rain protector).
20
4 Technical data
Cable type at least 2-wire cable
Conductor cross-
2
0.5 mm
section
Cable entry M20 x1.5 for cable diameters 6 mm to 12 mm
5 Order list
Designation and description
Dräger Docking Station
Mounting support
4-pin connection terminal for the
Polytron 7000
Middle connection terminal
Safety Barrier Zone 2
Dräger Docking Station for Polytron 3000/7000
2
(AWG 20) to 2.5 mm (AWG 13)
Order no.
83 17 990
68 09 772
83 16 268
83 16 422
83 23 873