e2s warning signals D1xC1 Explosion Proof Alarm Sounder Instruction Manual
- June 9, 2024
- e2s warning signals
Table of Contents
D1xC1 Explosion Proof Alarm Sounder
Instruction Manual
D1xC1 Explosion Proof Alarm Sounder
The D1xC1 & D1xC2 combined alarm horn & strobes are classified by UL as Audible Signaling Appliances for General Signaling use in Hazardous Locations
Introduction
The D1xC1 & D1xC2 range are UL Classified combined alarm horns and strobes which produce a loud warning signal in a hazardous area. Sixty-Four first stage alarm ounds can be selected by internal switches and each one can be externally changed to a second, third or fourth stage alarm sound. The alarm horn may be used for Dust applications in Class II Division 1 & 2 and Class III Division 1 & 2 as well as Class II Zone 20, 21 and 22. D1xS1 & D1xS2 alarm horns and D1xL1 & D1xL2 Loudspeakers are also available as well as variants for Explosive Gas Atmospheres.
Warnings
CAUTION
TO REDUCE THE RISK OF IGNITION OF HAZARDOUS ATMOSPHERES:
DISCONNECT FROM SUPPLY BEFORE OPENING.
KEEP TIGHTLY CLOSED WHEN IN OPERATION.
WARNING
FIT SEALING FITTING IN CONDUIT RUNS WITHIN 18 INCHES FROM ENCLOSURE.
EQUIPMENT MUST NOT BE INSTALLED WITH THE HORN FACING UPWARDS OF HORIZONTAL
INSTRUCTION & SERVICE MANUAL D1xC COMBINED RADIAL HORNS & STROBES For Use In Hazardous Locations – Dust
Ratings and Markings
The D1xC1 and D1xC2 combined alarm horns and strobes comply with the
following standards for hazardous locations:
UL 1203
CAN/CSA C22.2 No. 25-1966
The D1xC1 and D1xC2 combined alarm horns and strobes also comply with the
following standards for signaling equipment:
UL464
UL1638
CSA C22.2 NO. 205-12
3.1 Class / Division Ratings for US & Canada
The D1xC1X05 / D1xC2X05 combined alarm horns and strobes are rated as
follows:
Class II Div 1 FG T4 Ta -40°C to +55°C
Class II Div 1 FG T4A Ta -40°C to +40°C
Class III Div 1 Ta -40°C to +55°C
Installation must be carried out in compliance with the National Electric Code
/ Canadian Electric Code
3.2 Class / Zone ratings for US & Canada
The D1xC1X05 / D1xC2X05 combined alarm horns and
strobes are rated as follows:
Zone 20 IIIB T4 Ta -40°C to +55°C
Zone 20 IIIB T4A Ta -40°C to +40°C
Installation must be carried out in compliance with the National Electric Code
/ Canadian Electric Code
3.3 Ambient Temperature Range:
-40ºC to +55ºC
3.4 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
D1xC1 has been tested and found suitable for use in atmospheres containing the
following chemicals in accordance with UL1203:
Acetone
Ammonium Hydroxide
Diethyl Ether
Ethyl Acetate
Ehylene Dichloride
Furfural
n-Hexane
Methyl Ethyl Ketone
Methanol
2-Nitropropane
Toluene
3.5 Electrical Ratings per UL Listing
Model No.| Nom. Voltage| Nom. rms current sounder 1|
Nom. rms current beacon 1| Nom. rms current combined 1|
Voltage Range| Max. rms current combined 2
---|---|---|---|---|---|---
D1xC1X05-DC024-D| 24Vdc| 217 mA| 323 mA| 540 mA| 20-28Vdc| 604 mA @ 20Vdc
D1xC1X05-AC115-D| 115Vac 60Hz| 77 mA| 130 mA| 207 mA| 110-120Vac 50/60Hz| 266
mA @ 120Vac 60Hz
D1xC1X05-AC230-D| 230Vac 50Hz| 53 mA| 79 mA| 132 mA| 220-240Vac 50/60Hz| 151
mA @ 240Vac 60Hz
D1xC2X05-DC024-D| 24Vdc| 924 mA| 323 mA| 1247 mA| 20-28Vdc| 1477 mA @ 20Vdc
D1xC2X05-AC115-D| 115Vac 60Hz| 268 mA| 130 mA| 398 mA| 110-120Vac 50/60Hz| 446
mA @ 110Vac 60Hz
D1xC2X05-AC230-D| 230Vac 50Hz| 159 mA| 79 mA| 238 mA| 220-240Vac 50/60Hz| 255
mA@ 220Vac 60Hz
- Nom. rms current draw at nom. voltage, worst case tone and 1Hz flash rate
- Max. rms current draw at worst case voltage, tone and flash rate
Installation
4.1 Safe Installation Requirements
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 the NEC / CEC
and any local regulations and should only be carried out by a competent
electrical engineer who has the necessary training.
To maintain the ingress protection rating and mode of protection, the cable
entries must be fitted with suitably rated cable entry and/or blanking devices
during installation. If conduit is used for installation, seal conduit within
18 inches from the enclosure.
If entries are fitted with adaptors they must be suitably rated for the
application. Fitting of blanking elements into adaptors is not permitted.
If a high IP (Ingress Protection) rating is required then a suitable sealing
washer or O-ring must be fitted under any cable gland or blanking device with
metric threads.
Only the explosionproof cover is to be used for access to the enclosure for
installation, service and maintenance.
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 0.4 Nm / 3.5 Lb-in.
Earthing connections should be made to the Internal Earth terminal in the
explosionproof chamber or the external earth stud.
Check that the ‘O’ ring seal is in place before replacing the explosionproof
cover.
Installation
5.1 Mounting
The D1x Alarm Horn may be secured to any flat surface using the three 7mm
fixing holes. The enclosure provides IP66 protection and is suitable for
installation in exterior locations providing the cable entry is sealed.
5.2 Installation procedure
a. Secure the D1x alarm horn to a flat surface via the three 7mm fixing
holes in the mounting bracket.
b. Remove the explosionproof cover of the alarm horn by unscrewing it, taking
care not to damage the explosionproof threads in the process (Refer to
section6).
c. Fit an M20x1.5 suitably rated cable gland or conduit entry into the hole in
the enclosure and connect the field wiring to the appropriate alarm horn
terminals as shown in fig. 6 (AC) or fig 8. (DC). The power supply terminals
are duplicated so that units may be connected in parallel. An end of line
monitoring resistor may be fitted to DC units only (see section 14). If the
second and third M20x1.5 and or NPT entries are not used, suitably rated
stopping plugs must always be fitted.
d. Replace the explosionproof cover of the loudspeaker, taking care not to
damage the explosionproof threads. Tighten fully.
5.3 Hornless Variants
The D1x Sounder is also available as a variant with no horn fitted in the
factory. The Horn threaded nose portion has a fitment thread of 1-3/8” – 18
UNF (to BS1580 or ANSI B1.1). The customer is responsible for sourcing and
correctly fitting a suitable horn that meets all of the relevant safety
requirements.
Access to Explosionproof Enclosure
In order to connect the electrical supply cables to the alarm horn it is
necessary to remove the explosionproof cover to gain access to the
explosionproof chamber. This can be achieved by unscrewing the explosionproof
cover, taking extreme care not to damage the explosionproof threads in the
process.
On completion of the
cable wiring installation the explosionproof threads should be inspected to
ensure that they are clean and that they have not been damaged during
installation. Also check that the ‘O’ ring seal is in place, on the thread
diameter in contact with the flat face of the explosionproof cover. When
replacing the explosionproof cover ensure that it is tightened fully.
Volume Control
The output level of the D1x alarm horn can be set by adjusting the volume
control potentiometer (see Fig 3). For maximum output, set the potentiometer
fully clockwise.
Tone Selection
The D1xC1 & D1xC2 units have 64 different tones that can be selected
independently for the first and second stage alarms. The tones are selected by
operation of the tone setting DIP switches 1 & 2 (see Fig. 3) on the PCB. The
alarm horns can also be switched to sound the third and fourth stage alarm
tones. The tone table (Table 1) shows the switch positions for the 64 tones
on first and second stages and which tones are available for the third and
fourth stages dependent on the Stage 1 DIP switch setting.
Stage Switching Polarity (DC Units Only)
The D1xC2 and D1xC1 DC alarm horns have the facility to use either +ve or
–ve switching to change the tone to the second, third and fourth stages. For
–ve switching connect the two headers on the pcb to the left-hand (marked
–ve) and centre pins. For +ve switching connect the headers to the right hand
(marked +ve) and the centre pins. (Refer to Fig. 4)
AC Wiring
10.1 Wiring Diagrams
10.2 Units First Stage Tones
Stage one (S1) operation: Simply connect the supply voltage to the L and N
supply terminals, (see fig. 6).
10.3 AC Units Second, Third and Fourth Stage Tone Selection
To select the second, third and fourth stage tones on the D1x 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. 
DC Wiring
11.1 Wiring Diagrams
Fig. 7b DC Simplified Block Diagram (positive switching)
11.2 Units First Stage Tones
Stage one (S1) operation: Simply connect the supply voltage to the + and –
supply terminals, (see fig. 8).
11.3 DC Units 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. Dip switch 2 alters stage 2 tone. Stage three (S3) operation: Power
+ve and –ve, link a – ve supply line to the S3 terminal. Dip switch 1 alters
stage 3 tone. Stage four (S4) operation: Power +ve and –ve, link a -ve supply
line to both the S2 & S3 terminals. Dip switch 1 alters stage 4 tone.
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. Dip switch 2 alters stage 2 tone. Stage three (S3) operation: Power
+ve and –ve, link a +ve supply line to the S3 terminal. Dip switch 1 alters
stage 3 tone. Stage four (S4) operation: Power +ve and –ve, link a +ve supply
line to both the S2 & S3 terminals. Dip switch 1 alters stage 4 tone.
Earthing
The unit has both a primary internal and secondary external earth fixing
point.
Internal earth connections should be made to the internal Earth terminal (see
Fig. 3 and 4. It should be fitted to the internal earth point using a ring
crimp terminal to secure the earth conductor.
In addition, external earth connections can be made to the M5 earth stud (see
Fig. 2), using a ring crimp terminal to secure the earth conductor to the
earth stud. 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.
The earth conductor should be at least equal in size and rating to the
incoming power conductors but at least a minimum of 0.82mm / 18AWG in size. 2
Flash Rate Settings
End Of Line Monitoring (DC Units Only)
On D1xC1DC & D1xC2DC units, dc reverse line monitoring can be used if
required. All DC alarm horns have a blocking diode fitted in their supply
input lines. An end of line monitoring diode or 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 a minimum resistance value of 3k3 ohms and a
minimum power rating of 0.5 watts or a minimum resistance value of 500 ohms
and a min. power rating of 2 watts.
The resistor must be connected directly across the +ve and – ve terminals as
shown in the following drawing. The resistor leads should be kept as short as
possible. 
European Safety Systems Ltd.
Impress House, Mansell Road, Acton, London W3 7QH
sales@e2s.com Tel: +44 (0)208 743 8880
www.e2s.com Fax: +44 (0)208 740 4200
Document No. D190-00-361-IS-SC
Issue: 3 18-01-2021 Sheet
References
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