Velocity VL-D2 C1X05 Series User manual

www.velocitydetection.com Doc: GLT-313-7-1 Issue: 001 Date: 28/10/2020
1) Introduction
The D2xC1 is an ATEX, IECEx and UL certified Alarm Horn and Strobe
which produces a loud warning signal and bright visual signal in a
hazardous area. Sixty-Four first stage alarm sounds can be selected
by internal switches and each one can be externally changed to a
second, third or fourth stage alarm sound. The unit may be used for
Gas applications in Zone 2 / Class I Zone 2 / Class I, Division 2 as well
as for Dust applications in Zone 22 / Class II Zone 22 / Class II Divison
2 / Class III Division 1 & 2. The beacon flashes at a set rate of 1Hz.
The D2xC1X05DC024 is also listed as Audible & Visual Appliances for
use in Fire Alarm Systems Private Mode in accordance with UL464
Tenth Edition & UL1638 Fourth Edition.
2) Warnings
SUITABLE FOR USE IN CLASS II, DIVISION 2, GROUPS A, B, C AND D
HAZARDOUS LOCATIONS
SUITABLE FOR USE IN CLASS II, DIVISION 2, GROUPS E, F AND G HAZARDOUS
LOCATIONS
WARNING: DO NOT OPEN WHEN EXPLOSIVE ATMOSPHERE IS PRESENT
WARNING –EXPLOSION HAZARD –SUBSTITUTION OF ANY COMPONENT
MAY IMPAIR SUITABILITY FOR CLASS I, DIVISION 2.
WARNING –EXPLOSION HAZARD –SUBSTITUTION OF ANY COMPONENTS
MAY IMPAIR SUITABILITY FOR CLASS II, DIVISION 2.
POTENTIAL ELECTROSTATIC CHARGING HAZARD –CLEAN ONLY WITH A
DAMP CLOTH
USE HEAT RESISTANT CABLES AND CABLE GLANDS (RATED 90ºC OR HIGHER)
EXPLOSION HAZARD. DO NOT REMOVE OR REPLACE LAMPS, FUSES OR PLUG-
IN MODULES UNLESS POWER HAS BEEN DISCONNECTED OR THE AREA IS
KNOWN TO BE FREE OF IGNITIBLE CONCENTRATIONS OF FLAMMABLE GASES
OR VAPORS.
EXPLOSION HAZARD. DO NOT DISCONNECT WHILE THE CIRCUIT IS LIVE OR
UNLESS THE AREA IS KNOWN TO BE FREE OF IGNITIBLE CONCENTRATIONS.
DO NOT PAINT
NE PAS PEINTURER
3) Ratings and Markings
3.1 ATEX / IECEx certification
The D2xC1 Alarm Horn and Strobe complies with the
following standards:
EN60079-0:2012+A11:2013 / IEC60079-0: ed. 6.0 (2011-06)
EN60079-15:2010 / IEC60079-15: ed. 4.0 (2010-01)
EN60079-31:2009 / IEC60079-31: ed. 1.0 (corr. 1 2009)
The EC-Type Examination Certificate DEMKO
14ATEX4786493904X / IECEx ULD14.0004X has been issued by
UL. This confirms compliance with the European ATEX
Directive 94/9/EC for Group II, Category 3G/D equipment.
The unit carries the Community Mark and subject to local
codes of practice, may be installed in any of the EEA member
countries. This instruction sheet describes installations which
conform to the current issue of EN60079-14/IEC60079-14
Electrical Installation in Hazardous Areas; EN60079-10-1 / IEC
60079-10- 1 Explosive Atmospheres - Classification of Areas.
Explosive Gas Atmospheres; EN60079-10-2 / IEC 60079-10-2
Explosive Atmospheres - Classification of Areas. Explosive
Dust Atmospheres. When designing systems for installation
outside the UK, the local Code of Practice should be
consulted.
The D2XC1X05 is rated as follows:
II 3G Ex nA IIC T2 Gc (Ta -40ºC to +50°C)
II 3D Ex tc IIIC T90ºC Dc (Ta -40ºC to +50°C)
CE marking:
Zones, Gas/Dust Groups and Temperature Classification
When connected to an approved system the D2X unit may be
installed in:
Zone 2 explosive gas air mixture not likely to occur
in normal operation, and if it does, it will
only exist for a short time.
Zone 22 explosive dust air mixture not likely to
occur in normal operation, and if it does, it
will only exist for a short time.
May be used with gases in groups:
Group IIA propane
Group IIB ethylene
Group IIC hydrogen / acetylene
Having a temperature classification
(for Gas applications) of:
T1 450ºC
T2 300ºC
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May be used with Dust types:
Group IIIA combustible flyings
Group IIIB non-conductive dust
Group IIIC conductive dust
Maximum Surface Temperature for Dust Applications:
For D2xC1X05: 90ºC
3.2 Class / Zone ratings for US
The D2xC1 Alarm Horn and Strobe complies with the following
standards:
ANSI/UL 60079-0-2013
ANSI/UL60079-15-2013
ISA60079-31-2013
The D2XC1X05 Alarm Horn and Strobe is rated as follows:
Class I, Zone 2 AEx nA IIC T2 Gc (Ta -40ºC to +50°C)
Zone 22 AEx tc IIIC T120°C Dc (Ta -40ºC to +50°C)
Installation must be carried out in compliance with the National
Electric Code
3.3 Class / Zone ratings for Canada
The D2xC1 Alarm Horn and Strobe complies with the following
standards:
CAN/CSA C22.2 No. 60079-0:11
CAN/CSA C22.2 No. 60079-15:12
CAN/CSA C22.2 No. 60079-31:12
The D2XC1X05 Alarm Horn and Strobe is rated as follows:
Ex nA IIC T2B Gc X (Ta -40ºC to +50°C)
Ex nA IIC T2C Gc X (Ta -40ºC to +45°C)
Ex tc IIIC T120°C Dc (Ta -40ºC to +50°C)
Class II, Div 2 EFG T4A (Ta -40ºC to +50°C)
Installation must be carried out in compliance with the Canadian
Electric Code
3.4 Class / Division Ratings for US and Canada
D2xC1 Alarm Horn and Strobe complies with the following
standards:
ANSI/ISA 12.12.01-2013
CSA C22.2 No. 213-M1987
CSA C22.2 No. 157-92:2006
For D2xC1X05:
Class I Div 2 ABCD T2B Ta -40ºC to +70ºC
Class I Div 2 ABCD T2C Ta -40ºC to +55ºC
Class I Div 2 ABCD T2D Ta -40ºC to +40ºC
Class II Div 2 FG T5 Ta -40ºC to +50ºC
Class III Div 1&2 Ta -40ºC to +50ºC
Installation must be carried out in compliance with the National
Electric Code / Canadian Electric Code
3.5 Ambient Temperature Range:
-40ºC to +70ºC (Class I Div 2 only)
-40ºC to +50ºC
3.5 Ingress Protection Ratings
The product is rated for ingress Protection as follows:
IP rating per EN60529: IP66
Type rating per UL50E / NEMA250: 4 / 4X / 3R / 13
To maintain the ingress protection rating, the two off M20 cable
entries must be fitted with suitably rated, certified cable entry
and/or blanking devices during installation.
3.6 Electrical Ratings
Part No.
Nominal
Voltage
Nominal
Current
Voltage
Range
Max
Current
D2xC1X05
DC024
24Vdc
513mA
20-28Vdc
521mA @
20Vdc
D2xC1x05
DC048
48Vdc
311mA
42-58Vdc
328mA @
42Vdc
D2xC1x05A
C115
115Vac
174mA
115-
125Vac
60Hz
183mA @
125Vac
D2xC1x05A
C230
230Vac
63mA
215-
250Vac
50Hz
77mA @
250Vac
A supply voltage variation of +/-10% is permissible
3.7 Fire Alarm Ratings
The following models are approved for use as Audible and Visual
Appliance for use in Fire Alarm Systems –Private Mode
(UL1638/UL464) and produce a sound pressure level above 75dB(A)
at 10 feet:
D2xC1X05DC024
For Fire Alarm applications, the Sounder Volume must be at the
highest setting, (see volume control section).
For fire alarm use, the temporal pattern tone No.12 as per the tone
table provided in these instructions must be selected. This tone
produces a minimum sound pressure level of:
UL464: 92.2dB(A)† at 10 feet.
(†reverberation room)
On-Axis Flash Rate and min. light output:
Model
Flash Rate
Light output
in cd eff.
Lens colour
D2xC1X05DC024
60 fpm
15.6
Clear
4.8
Red
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4) Special Conditions for Safe Use
Special Condition for safe Use as stated on the Type Examination
Certificate DEMKO 14 ATEX 4786493904X / CoC IECEx ULD
14.0004X:
End user shall adhere to the manufacturer’s installation and
instruction when performing housekeeping to avoid the potential
for hazardous electrostatic charger during cleaning, by using a damp
cloth.
The D2xC1 is not to be mounted with the horn facing upwards
The equipment shall only be used in end use with appropriately
certified cable entry devices and blanking plugs
4.1 Installation
The product must only be installed by suitably qualified personnel in
accordance with the latest issues of the relevant standards.
The installation of the units must also be in accordance with any
local codes that may apply and should only be carried out by a
competent electrical engineer who has the necessary training.
The equipment is not to be mounted with the horn facing upwards.
The equipment has not been assessed as a safety-related device (as
referred to by Directive 94/9/EC Annex II, clause 1.5).
The cable entry temperature may exceed +70ºC / the cable
branching point may exceed 80ºC. Therefore suitable heat resisting
cables and cable glands must be used, with a rated service
temperature of at least 90ºC
To maintain the ingress protection rating and mode of protection,
the M20 x 1.5 cable entries must be fitted with suitably rated,
certified cable glands and/or suitably rated, certified blanking
devices during installation. If a high IP (Ingress Protection) rating is
required, then a suitable sealing washer must be fitted under the
cable gland. For use in explosive gas atmospheres a minimum
ingress protection rating of IP54 must be maintained. For use in
explosive dust atmospheres a minimum ingress protection rating of
IP64 must be maintained.
Only the front cover is to be used for access to the enclosure for
installation, service and maintenance. Once the product is opened,
the Type Rating cannot be maintained anymore unless a full
verification of the gasket material is done and there is no damage.
Connections are to be made into the terminal blocks using solid or
stranded wire, sizes 0.5-2.5mm2 / AWG 20-14. Wire insulation
needs to be stripped 6-7mm. Wires may be fitted securely with
crimped ferrules. Terminal screws need to be tightened down with a
tightening torque of 0.56 Nm / 5 Lb-in.
Internal earthing connections should be made to the internal earth
terminal on the PCBA. The earth conductor should be at least equal
in size and rating to the incoming power conductors. The internal
earth bonding wire connects the PCBA earth terminal to the internal
earth terminal in the enclosure back box.
External earthing connections should be made to the M5 earth stud,
using a ring crimp terminal to secure the earth conductor to the
earth stud. The external earth conductor should be at least 4mm2 /
AWG 11 in size.
Check that the earth bonding wire between the two castings is
secure and the ‘O’ ring seal is in place and in good condition.
4.2 Maintenance, Overhaul and Repair
Maintenance, repair and overhaul of the equipment should only be
carried out by suitably qualified personnel in accordance with the
current relevant standards:
EN60079-19 / IEC60079-19 Explosive atmospheres - Equipment
repair, overhaul and reclamation
EN 60079-17/ IEC60079-17 Explosive atmospheres - Electrical
installations inspection and maintenance
Units must not be opened while an explosive atmosphere is present.
If opening the unit during maintenance operations a clean
environment must be maintained and any dust layer removed prior
to opening the unit.
Electrostatic charging hazard - Clean only with a damp cloth
D2xC1 Alarm Horn and Strobe should only be installed by trained
competent personnel.
5.1 Mounting
The D2xC1 Alarm Horn and Strobe may be secured to any flat
surface using the two 9.7 x 6.7mm, 147mm pitch fixing holes. The
enclosure provides IP66 protection and is suitable for installation in
exterior locations providing it is positioned so that water cannot
collect in the horn, and the cable entry is sealed.
5.2 Installation procedure
a) Secure the D2xC1 Alarm Horn and Strobe to a flat surface
via the two 9.7 x 6.7mm, 147mm pitch fixing holes in the
mounting feet.
b) Remove the front of the unit by unscrewing the four
captive cover screws and pulling the front away from the
enclosure.
c) Fit an M20x1.5 suitably rated, certified cable gland or
conduit entry into the hole in the enclosure and connect
VL-D2xC1X05 Explosion Proof Horn Alarm & Strobe

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the field wiring to the appropriate alarm horn terminals as
shown in section 9 and fig 8 (DC) or section 8 fig 5 (AC) of
this manual. The power supply terminals are duplicated so
that horns may be connected in parallel and for DC units
only an end of line monitoring resistor may be fitted. If the
second M20x1.5 entry is not used a suitably rated,
certified stopping plug must always be fitted.
d) Select the required output tone by positioning the six
switches as shown in Table 1 and Fig 2.
e) Adjust the internal volume control to provide the required
sound level.
f) Check that the O-ring seal in the front cover is in good
condition and not damaged.
g) Replace the front of the unit and tighten the four captive
cover screws.
6) Volume Control
The alarm horn output level of the D2xC1 unit can be set by
adjusting the volume control potentiometer (see Fig 2). For
maximum output, set the potentiometer fully clockwise.
7) Cable Routing and Tone Selection
7.1 Cable Routing
Due to the compact design of the D2x units, it is important that the
user strips the outer sheath of and biases any cables over the size of
1mm2 as shown below.
Fig 3. Cables are to be stripped and biased toward side of unit with
allocated spacing as shown.
8) AC Wiring
8.1 Wiring Diagram
8.2 Unit’s First Stage Tones
Stage one (S1) operation: Simply connect the supply voltage to the L
and N supply terminals, (see fig. 5). The Strobe is powered via
factory installed wires connected to the sounder. The wires
connecting the alarm horn and strobe can be removed if the user
wishes to power the strobe separately.
8.3 Second, Third and Fourth Stage Tone Selection
To select the second, third and fourth stage tones on the D2xS1 AC
alarm horns.
Stage two (S2) operation: Power L and N, link the common (C) and
S2 terminal.
Stage three (S3) operation: Power L and N, link the common (C) and
S3 terminals.
Stage four (S4) operation: Power L and N, link the common (C) and
both the S2 and S3 terminals.
Strobe will continue to flash during alarm horn S2, S3 & S4 stages.
Refer to Fig AC Terminals (over leaf)
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9) DC Wiring
9.1 DC Stage Polarity Control
The stage switches of the DC powered D2x units can be activated via
Positive (+ve) or Negative (-ve) switching. All units are factory set to
-ve switching as standard. If +ve switching is required, the two wire
links should be removed from the ‘-’ positions of the stage polarity
control terminals and fitted to the ‘+‘ positions as shown in fig 6.
Fig. 7c DC Simplified Block Diagram (negative switching, powering
sounder and beacon independently)
9.3 Units First Stage Tones
Stage one (S1) operation: Simply connect the supply voltage to the +
and - supply terminals, (see fig. 8). The Strobe is powered via factory
installed wires connected to the alarm horn. The wires connecting
the alarm horn and strobe can be removed if the user wishes to
power the strobe separately.
9.4 Second, Third and Fourth Stage Tone Selection
For units set up for –ve switching (default setting):
Stage two (S2) operation: Power +ve and –ve, link a -ve supply line
to the S2 terminal.
Stage three (S3) operation: Power +ve and –ve, link a -ve supply line
to the S3 terminal.
Stage four (S4) operation: Power +ve and –ve, link a -ve supply line
to both the S2 & S3 terminals.
Strobe will continue to flash during alarm horn S2, S3 & S4 stages.
For units set up for +ve switching (refer to 9.1):
Stage two (S2) operation: Power +ve and –ve, link a +ve supply line
to the S2 terminal.
Stage three (S3) operation: Power +ve and –ve, link a +ve supply line
to the S3 terminal.
Stage four (S4) operation: Power +ve and –ve, link a +ve supply line
to both the S2 & S3 terminals.
Strobe will continue to flash during alarm horn S2, S3 & S4 stages.
Fig 8 DC Terminals (overleaf)
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10) Earthing
The unit has both internal & external earth terminals, (see fig 3).
Internal earthing connections should be made to the internal earth
terminal on the PCBA, (please see fig 5 for AC, fig 8 for DC). The
earth conductor should be at least equal in size and rating to the
incoming power conductors. The internal earth bonding wire
connects the PCBA earth terminal to the internal earth terminal in
the enclosure back box.
External earth connections should be made to the M5 earth stud,
using a ring crimp terminal to secure the earth conductor to the
earth stud. The external earth conductor should be at least 4mm2 in
size. The external earth crimp ring should be located between the
two M5 plain washers provided and securely locked down with the
M5 spring washer and M5 nut.
11) End Of Line Monitoring (DC Units Only)
On D2xC1 DC units, dc reverse line monitoring can be used if
required. All DC units have a blocking diode fitted in their supply
input lines. An end of line monitoring resistor can be connected
across the +ve and –ve terminals. If an end of line resistor is used it
must have the following values:-
24V DC Alarm Horn and Strobe
Minimum Resistance 3k9 ohms Minimum wattage 0.5W
Minimum Resistance 1k ohms Minimum wattage 2.0W
Tone Selection (overleaf)
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Tone Selection cont……
VL-D2xC1X05 Explosion Proof Horn Alarm & Strobe