Signaline SKM-95 Instruction Manual

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Version 2.1

Signaline SKM-95

Instruction Manual

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Version 2.1

Contents

1.0 General/Product Features

2.0 Technical Data

3.0 Installation Notes

3.1 Complete Monitoring in Accordance with EN54 pt5

3.2 Maximum Cable Length

4.0 Assembly Tools

5.0 Control Unit Indicators

5.1 End of Line Unit

6.0 Address Codes and Wiring

7.0 Testing the Unit

8.0 Calculating the Installed Length of Sensor Cable

9.0 Mounting the Sensor Cable in a Car Park

10.0 Troubleshooting

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Version 2.1

1.0 General/Product Features

• The Signaline SKM-95 is a linear heat detector controller

• The maximum length of cable per controller is 300m

• Temperature increases are detected along the entire cable

length

• The controller will accept the following cables:

• Signaline HD, for use in general applications

• Signaline HD-R, resistant to oils, chemicals and UV light

• Signaline HD-S, exceptional mechanical protection

• The system is easy and economical to install

• The alarm indicator is in accordance with DIN 14 623

• Approved to DIN/EN 54 pt5 Class C

• The VdS approved certificate No. is G203077

The sensor cable system is an early warning fire detection system
when used with the Signaline SKM-95 controller. It can be used to
detect fires and over heats on conveyor belts, cable trays or
tunnels. For detection in open areas it can be mounted on the
ceiling or also be mounted directly above a cable tray.

The sensor cable will self adjust to ambient conditions. It is also
unaffected by steam, dust, chemicals (HD-R), or smoke thereby
reducing the likelihood of false alarms which can happen with
traditional fire detection.

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Version 2.1

1.0 General/Product Features

Signaline Analogue Heat Sensing Cable System

1) Controller type SKM-95

2) End of line box for SKM-95 (included)

3) Sensor cable

• standard (Signaline HD)

• with Rilsan coated (Signaline HD-R)

• with Stainless Steel protective braiding (Signaline HD-S)

Sensor Cable Construction

The cable is made of an inner and an outer conductor, the outer
conductor is tinned copper braid. The insulation between both
conductors is made from a plastic material with a negative
temperature coefficient, which means with increasing temperature,
the insulation resistance decreases.

In the end of line unit, at the end of the sensor cable, the sensor
cable is connected with a defined resistor of 3K6 Ohm. Therefore,
the whole system is always monitored for wire breakage (open
circuit) and short circuit. A break or a short circuit on one of these
conductors causes a fault alarm.

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Version 2.1

2.0 Technical Data

Detector

Operating Voltage Loop powered
Current consumption standby <2 mA
Current consumption alarm 3.2 mA
Operating protocol Apollo XP95
Isolator voltage ca. 14V

Parallel indicator (external) -Ub max. 10mA

Fire relay contact N/A
Fault relay contact N/A

Temperature range -25°C to +45°C

Indicators

• Fire Alarm red LED

• Operation no indication

• Malfunction yellow LED

Dimensions Controller 110 x 110 x 65 mm

Weight 270g

Color grey, RAL 9002
Ingress Protection IP65
Dimensions end of line box W/H/D 80 x 80 x 52 mm

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Version 2.1

2.0 Technical Data

Heat Sensing Cable

Signaline HD

• Red outer sheath

• Plastic coaxial conductor

• 3.25 mm sensor cable diameter

• 1.6 Kg per 100 metres

Signaline HD-R

• Black nylon outer sheath (Rilsan)

• plastic coaxial conductor

• 4.00 mm sensor cable diameter

• 3.0 Kg per 100 metres

Signaline HD-S

• Stainless steel outer braid

• Red sheath

• Plastic coaxial conductor

• 4.20 mm sensor cable diameter

• 3.75 Kg per 100 metres

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Version 2.1

3.0 Installation Notes

The Signaline SKM-95 Controller connected to the Signaline sensor
cable should be mounted in the area requiring protection. The
controller and cable are designed and certified in conformity with
VdS and EN 54 pt5. Local fire regulations may vary, particularly
outside Europe. Always conform to your local fire regulations.

The cable is not to be installed 6 metres higher than the protected
area. The sensor cable must be installed as per

Figure 1

. It is
important to make sure that the distance between the wall and the
sensor cable is at least 0.5 metres. This also applies when laying
parallel to beams. Crossing of ceiling beams is possible, but the
length of sensor cable on the beams should not be longer than
10% of the overall cable length.

Before you install the sensor cable system, make a sketch drawing
of the area which will be monitored and mark out the proposed
layout. The sensor cable must be laid out in accordance with BS,
EN, DIN or your local regulations. The following points should be
adhered to:

• The sensor cable should not have any contact with a material

which cools the cable because this causes an alarm delay

• Laying on sharp objects and crushing the cable is to be

avoided so that the outer insulation of the sensor cable is not
damaged

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Version 2.1

3.0 Installation Notes

• When connecting two lengths of sensor cable use a Signaline

Universal Connector Box (Signaline UCB) available from your
local Signaline distributor.

• The minimum bend radius for Signaline Analogue Heat Sensing

Cables are as follows:

• HD - 5mm

• HD-R - 18mm

• HD-S - 20mm

• It is not advisable to mount Signaline Analogue Heat Sensing

Cables in direct contact with a surface. Please see

www.signaline.com

for suitable fixing solutions. See

Figure 3

for an example of a fixing solution.

• The distance between the fixing clips should not exceed 1m.

• Mounting the sensor cable near objects which radiate heat

must be avoided. These could be powerful light sources, steam
pipes, heaters or similar and may cause false alarms.

• The end of line box must be mounted in the same zone as the

controller.

• The end of line box should, where possible, be mounted at a

height of 1,80m (+10cm/-20cm) and marked with a sign.

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Version 2.1

3.1 Complete Monitoring in Accordance with EN54 pt5

Figure 1

demonstrates a detection system which is in accordance
with EN54 pt5 for 5 metres of sensor cable. It is important to make
sure that from every point of the monitored area at least 5 metres
of sensor cable is located within a radius of 3.6m.

Figure 1

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Version 2.1

3.2 Maximum Cable Length

The Figure below shows the maximum allowed cable length
dependent on the maximum ambient temperature

Figure 2

An alarm will be detected when 5 metres of sensor cable is heated
between 84°C and 100°C. If a large length of Signaline Analogue
Heat Sensing Cable is heated then the alarm temperature will be
proportionally lower.

-30

-20

-10

0

10

20

30

40

50

60

70

80

90

0 50 100 150 200 250 300

Maximum Installation Ambient Temperature

for Lengths of Signaline HD Cable

Resistor = 3K6 Ohm
5m Signaline HD Cable, radius 3.6m

Ambient Temperature °C

Length of Signaline Cable in m

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Version 2.1

4.0 Assembly Tools

To attach the sensor cable to the protected area you can use dif­ferent clips depending on your application. The cable should be at
least 5mm away from the ceiling.

The K clip is simple and easy to install, allowing lower installation
time and cost. Simply drill a 6mm Ø hole, click the cable in place,
and plug it in. K clips can be used with Signaline HD and Signaline
HD-R cables.

Figure 3

For alternatives please contact our offices;

[e-mail]

[phone]

www.signaline.com

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Version 2.1

5.0 Control Unit Indicators

The indicators for alarm and fault alarm are visible through the
clear cover on the controller housing.

The alarm indicator is compliant with DIN 14 623

Figure 4

• When there is no LED illuminated the Signaline SKM-95

Controller is operational

• If there is a yellow LED then the Signaline SKM-95 Controller

has a fault

• When the red LED is illuminated then the Signaline SKM-95

controller is indicating a fire

Yellow LED

Red LED

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Version 2.1

5.1 End of Line Unit

Signaline SKM-95 End of Line Unit

In the end of line unit (

Figure 5

) you will find a 3K6 Ohm resistor.
This is used for monitoring incase of a cable break or short circuit.
There is no setup required for this unit

Figure 5

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Version 2.1

6.0 Address Codes and Wiring

1234567 1234567 1234567 1234567
1=1000000 33=1000010 65=1000001 97=1000011
2=0100000 34=0100010 66=0100001 98=0100011
3=1100000 35=1100010 67=1100001 99=1100011
4=0010000 36=0010010 68=0010001 100=0010011
5=1010000 37=1010010 69=1010001 101=1010011
6=0110000 38=0110010 70=0110001 102=0110011
7=1110000 39=1110010 71=1110001 103=1110011
8=0001000 40=0001010 72=0001001 104=0001011
9=1001000 41=1001010 73=1001001 105=1001011

10=0101000 42=0101010 74=0101001 106=0101011
11=1101000 43=1101010 75=1101001 107=1101011
12=0011000 44=0011010 76=0011001 108=0011011
13=1011000 45=1011010 77=1011001 109=1011011
14=0111000 46=0111010 78=0111001 110=0111011
15=1111000 47=1111010 79=1111001 111=1111011
16=0000100 48=0000110 80=0000101 112=0000111
17=1000100 49=1000110 81=1000101 113=1000111
18=0100100 50=0100110 82=0100101 114=0100111
19=1100100 51=1100110 83=1100101 115=1100111
20=0010100 52=0010110 84=0010101 116=0010111
21=1010100 53=1010110 85=1010101 117=1010111
22=0110100 54=0110110 86=0110101 118=0110111
23=1110100 55=1110110 87=1110101 119=1110111
24=0001100 56=0001110 88=0001101 120=0001111
25=1001100 57=1001110 89=1001101 121=1001111
26=0101100 58=0101110 90=0101101 122=0101111
27=1101100 59=1101110 91=1101101 123=1101111
28=0011100 60=0011110 92=0011101 124=0011111
29=1011100 61=1011110 93=1011101 125=1011111
30=0111100 62=0111110 94=0111101 126=0111111
31=1111100 63=1111110 95=1111101
32=0000010 64=0000001 96=0000011

Address/Switch position:
ON = 0 OFF = 1, use
switch 8 to test alarm

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Version 2.1

6.0 Address Codes and Wiring

Connect the cable as shown in

Figure 6

below.

Figure 6

How to test the alarm

• Use dip switch 8

• Change the EOL resistor to a 2K Ohm resistor in place of the

3K2 Ohm resistor. Reset the 3K2 Ohm resistor after test

Remote Indicator

Earth

Loop +ve Loop +ve

Loop –ve

Loop –ve

Remote Indicator –ve

Sensor Cable -

Sensor Cable +

Sensor Cable

Earth

To EARTH

Loop -ve

Loop +ve

Loop -ve

Loop +ve

1 8

ON

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Version 2.1

7.0 Testing the System

Loop Device Recognition

Most Apollo XP95 or Discovery compatible panels should recognize
the SKM-95 controller as an Apollo XP95 heat detector. Some
panels recognise the SDKM-95 controller as an Apollo XP95 Hi

g

h

Temperature Heat detector.

Simulated Test

The controller will simulate a fire condition if the when address
switch 8 is moved to the ON position

Heat Test

Using a hot air gun, heating 5 metres of sensor cable to 100°C
(max. 115°C) will raise an alarm. When the cable has cooled, the
controller may be reset.

IMPORTANT NOTE: If the sensor cable is heated up to
150°C or more then that part of the cable cannot be used
any more and should be replaced.

WARNING: Obtain permission of the site safety manager
before starting live heat tests. Live heat tests MUST NOT
be conducted in a designated hazardous area or when the
Signaline HD sensor cable forms part of an intrinsically
circuit.

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Version 2.1

8.0 Calculating the Installed Length of Sensor Cable

If the total length of an installed sensor cable is not know, it is
possible to be calculated with the help of a multi-meter. For this
then both wires of the sensor cable should be clamped together in
the end of line unit. The resistance of the cable should then be
measured at the other end. The sensor cable has a resistance of

0.2 Ohms per metre.

The cable length is calculated as follows:

Length in metres = resistance (Ohms)

0.2 (

W

/m)

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Version 2.1

9.0 Installing Sensor Cable in a Car Park

Figure 7

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Version 2.1

9.0 Installing Sensor Cable in a Car Park

Figure 8

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Version 2.1

10.0 Troubleshooting

Error Possible Solution
Yellow LED alight Is there a short circuit on the loop?

Is the end of line box connected?
Is the cable broken?
+/- reversed loop?
Is the cable crushed or too tightly

bent?
Controller is not detected
or address not found

Is the address correctly set on the

dip switches?

Do two devices have the same ad-

dress?

Is the controller in an isolated part

of the loop?

Fault on the panel?