Identification Of Cables - Siemens LDS 6 Operating Instructions Manual

The bending radius of the cable may never be smaller than 100 mm (4"). If clamps are used
there must be a minimum of 0.5 mm (0.02") clearance between cable and clamp or use
rubber coated clamps. Take extra care of hybrid cables for HCl systems since the cables are
very sensitive to the wavelength used in these systems. The figure below shows the pre-
requisites for installation of the cables.
If clamps are used there must be min 0.5 mm (1/64")
clearence between cable and clamps
However it is recomended to protect the cables
into a metallic tube. Proper size of this tube is 75 mm (3").
Figure 2-3 Cable handling
2.3.2

Identification of Cables

All cables are marked with identification tags, as follows:
HXXXA or HXXXB, where H means Hybrid cable, is used for all types of systems except
oxygen. XXX is the serial number for the cable and A/B depends on the direction in which
the cable is oriented. Before cables are shipped from Siemens they are tested in both
directions A to B and B to A. It does not matter which way the cable is installed. Hybrid
cables are installed between the LDS 6 and the transmitter sensor.
OXXX are hybrid cables for oxygen systems only and are installed between the LDS 6 and
the transmitter sensor.
LXXX are loop cables and are the same for all systems. Loop cables are installed between
the transmitter sensor and the receiver sensor.
Make sure the operating and installation temperatures for the hybrid and loop cables are
not exceeded.
Sensor CD 6C Operating Instructions
Operating Instructions, 12/2007, A5E00912721-02
CAUTION
2.3 The Hybrid and Loop Cables
Protection tube for the cables (one in each end).
approx. 50 cm (20")
NOTE! DO NOT remove the protective tube
until the cable is installed and ready to
be connected to LDS 6 and sensors.
The cable end protection should only be
removed by authorized personnel.
Environment requirements:
Operating temp. -40°C/+80°C (-40°F/+176°F)
-
- Installation temp. -20°C/+80°C (-4°F/+176°F)
- Max tensile strength 500 N (112 lbs)
- Impact resistance 200 N/cm (115 lbs/")
- Min. bend radius 10 cm (4")
Preparations for Installation
11