Installing
Figure 5: Connection powered individually
Electrical Installation
When installing, the entire wiring must meet currently valid national regulations
regarding the installation of electrical devices, and - if necessary - the national
regulations regarding the installation in potentially explosive atmospheres. In case
of doubt, the official responsible authorities are to be consulted prior to installation
of the device.
Field cables specification. -The cables are required to supply between 18 and 30V
DC at peak current (all lamps and heaters on). The field cable runs must comply
with local regulations.
Preparing and fitting the cable
•
Strip and prepare the cable to the required lengths, typical dimensions are
given in Figure 6.
•
Place the socket components (outer cap, thrust washers, outer seal etc.)
onto the cable, whilst ensuring that the cable armour/braid is fitted between
the clamp cone and sleeve.
•
Fit the contact pins to the cable ends, (ensuring that small hexagonal collar
sits between the cable core and colour coded bar.
•
Carefully crimp the pins into position, ensuring that the hexagonal collar is
not damaged during the process. A crimping tool is recommended and is
available from Dräger UK Ltd or your local distributor.
•
Push the insulation sleeve over the contact pins, and push fit each pin into its
appropriate location of the socket insert. See rear socket insert as indicated
in Figure 6 for termination descriptions (e.g. pin 1 = digital, pin 2 = 24V, pin
3 = 0-20mA, pin 4 = Common).
NOTICE
It is critical that each pin is fitted to the correct
locations, failure to do so may result in damage to
the Dräger Polytron Pulsar 2.
!
