Kentec Electronics Sigma ZXT User manual

Man-1452EN Rev.02
Sigma ZXT Operation Manual
Extinguishant Release Panel
Sigma ZXT
Operation Manual
*MAN-1452EN*

Man-1452EN Rev.02
Sigma ZXT Operation Manual
Safety
Suppliers of articles for use at work are required under section 6 of the Health and Safety at Work Act 1974 to ensure
as reasonably as is practical that the article will be safe and without risk to health when properly used.
An article is not regarded as properly used if it is used ‘without regard to any relevant information or advice’ relating
to its use made available by the supplier.
This product should be installed, commissioned and maintained by trained service personnel in accordance with the
following:
(i) Regulations for electrical equipment in buildings specific to the country of use.
(ii) Codes of practice
(iii) Statutory requirements
(iv) Any instructions advised by the manufacturer.
According to the provisions of the Act you are therefore requested to take such steps as are necessary to ensure
that you make any appropriate information about this product available to anyone concerned with its use.
Suppliers of articles for use at work are required under section 6 of the Health and Safety at Work Act 1974 to ensure
as reasonably as is practical that the article will be safe and without risk to health when properly used.
An article is not regarded as properly used if it is used ‘without regard to any relevant information or advice’ relating
to its use made available by the supplier.
This product should be installed, commissioned and maintained by trained service personnel in accordance with the
following:
(i) IEE regulations for electrical equipment in buildings
(ii) Codes of practice
(iii) Statutory requirements
(iv) Any instructions specifically advised by the manufacturer
According to the provisions of the Act you are therefore requested to take such steps as are necessary to ensure
that you make any appropriate information about this product available to anyone concerned with its use.
This equipment is designed to operate at 230V AC 50/60Hz mains supplies, class 1 construction. As such it must
be connected to a protective earthing conductor in the fixed wiring of the installation and a readily accessible double
pole disconnect device meeting the requirements of EN60950/IEC950 which disconnects live and neutral simulta-
neously shall be incorporated in the fixed wiring.
Switch disconnect devices such as MK Sentry 63A or similar are suitable for this. Failure to ensure that all conduc-
tive accessible parts of this equipment are adequately bonded to the protective earth will render the equipment un-
safe.
This Control Panel is environmental class A and is designed for indoor use only at temperatures between -10°C and
+45°C with a maximum relative humidity of 95%. The IP rating for the enclosure is IP30.
Operation outside of these limits may render the equipment unsafe.

Man-1452EN Rev.02
Sigma ZXT Operation Manual
Compliance
Sigma ZXT is compliant with the following standards:
EN54-2 and EN54-4 Fire Detection and Fire Alarm Systems - Control and Indicating Equipment
In addition to the standard EN54-2 requirements the following options with requirements have been includ-
ed in the Control Panel:
Output to alarm devices to enable an audible warning to be sounded throughout the premises upon the detection of
a fire condition or the operation of a manual call point. EN54-2 Section 7.8.
Test condition to allow the automatic resetting of zones in alarm for testing purposes. EN54-2 Section 10.
Delay of the actioning of fire alarm devices (sounders) so that an alarm may be verified before a premise is evacu-
ated. EN54-2 Section 7.11
In addition to the requirements of EN54-2, Sigma ZXT Control Panels have a voltage free relay contact for fire which
operates upon a fire condition. This is to be used for local control and signalling.
EN12094-1 Fixed fire-fighting systems - Components for gas extinguishing systems - Part 1: Requirements and test
methods for electrical automatic control and delay devices.
In addition to the standard EN12094-1 requirements the following options with requirements have been in-
cluded in the Control Panel:
Delay of extinguishing signal of up to 60 seconds. EN12094-1 Section 4.17.
Signal representing the flow of extinguishing agent to indicate the released condition. EN12094-1 Section 4.18.
Monitoring of the status of components by way of a low pressure switch input. EN12094-1 Section 4.19.
Emergency hold device to enable the extinguishant delay time to be extended. EN12094-1 Section 4.20.
Control of flooding time to deactivate the releasing output after a set period of time. EN12094-1 Section 4.21.
Manual only mode to disable the release of extinguishant via automatic detection devices.EN12094-1
Section 4.23.
Extinguishing signals to spare cylinders enables the switching to a spare set of cylinders following a discharge to
return the system to a functional state. EN12094-1 Section 4.25.
Emergency Abort device to inhibit the extinguishing signal until the emergency abort device has been de-activated
and the Panel has been reset. EN12094-1 Section 4.27.
Activation of alarm devices with different signals to indicate pre-discharge and released warnings using different
sounds. EN12094-1 Section 4.30.
Default panel settings provide EN54-2 compliance:
BUZZER O/P: Enabled/Disabled This must be set to ENABLED.
MAINS FLT RLY DLY: OFF/30m This must be set to OFF.
FAULT RELAY: ENABLED/DISABLED This must be set to ENABLED.
FIRE RELAY: ENABLED/DISABLED. This must be set to ENABLED.
EARTH FAULT: ENABLED/DISABLED This must be set to ENABLED.
Important! Any deviation from these settings and compliance EN54-2 is void.

Man-1452EN Rev.02
Sigma ZXT Operation Manual
Disclaimer
In no event shall The Manufacturer be liable for any damages or injury of any nature or kind, no matter how caused,
that arise from the use of the equipment referred to in this manual. Strict compliance with the safety procedures set
out and referred to in this manual, and extreme care in the handling or use of the equipment, are essential to avoid
or minimise the chance of personal injury or damage to the equipment.
The information, figures, illustrations, tables, specifications, and schematics contained in this manual are believed
to be correct and accurate as at the date of publication or revision. However, no representation or warranty with re-
spect to such correctness or accuracy is given or implied and The Manufacturer will not, under any circumstances,
be liable to any person or corporation for any loss or damages incurred in connection with the use of this manual.
The information, figures, illustrations, tables, specifications, and schematics contained in this manual are subject to
change without notice.
Unauthorised modifications to the fire detection system or its installation are not permitted, as these may give rise
to unacceptable health and safety hazards.
Any software forming part of this equipment should be used only for the purposes for which The Company supplied
it. The user shall undertake no changes, modifications, conversions, translations into another computer language,
or copies (except for a necessary backup copy).In no event shall The Manufacturer be liable for any equipment mal-
function or damages whatsoever, including (without limitation) incidental, direct, indirect, special, and consequential
damages, damages for loss of business profits, business interruption, loss of business information, or other pecu-
niary loss, resulting from any violation of the above prohibitions.

Contents i
Man-1452EN Rev.02
Sigma ZXT Operation Manual
Section 1
Introduction ...................................................................................................................... 1
Section 2
Control Panel Operation .................................................................................................. 2
Manual Only Mode ..........................................................................................................................................2
Auto Mode .......................................................................................................................................................2
Zone Fire – Automatic Detection .....................................................................................................................3
Zone Fire – Manual mode ...............................................................................................................................3
1st Stage Extinguishant Release – Automatic Activation ................................................................................4
2nd Stage Extinguishant release – Automatic Activation ................................................................................4
Extinguishant Gas Released - Automatic ........................................................................................................5
2nd Stage Extinguishing Release – Manual Activation ...................................................................................5
Extinguishant Gas Released - Manual ............................................................................................................6
Fault Condition ................................................................................................................................................7
Disablements ..................................................................................................................................................8
Test Mode .......................................................................................................................................................9
Section 3
How to... ............................................................................................................................ 10
View Active Events ..........................................................................................................................................10
View Event Log ...............................................................................................................................................10
Put a Detection Zone Into Test Mode .............................................................................................................10
Disable a Detection Zone ................................................................................................................................11
Disable Extinguishant Release Output ............................................................................................................11
Disable Manual Release Function ..................................................................................................................11
Disable Relay Outputs ....................................................................................................................................12
Disable Sounder Outputs ................................................................................................................................12
Disable Monitored Inputs ................................................................................................................................12
Disable Panel Inputs .......................................................................................................................................12
Enable Sounder Delay ....................................................................................................................................13
Section 4
User Controls Overview ................................................................................................... 14
User Controls - Access Level 1 .......................................................................................................................14
User Controls - Access Level 2 .......................................................................................................................15
Notes ...............................................................................................................................................................16

Introduction 1
Man-1452EN Rev.02
Sigma ZXT Operation Manual
1
Section 1
Introduction
In accordance with BS5839 part 1; training on the operation of the Sigma ZXT Extinguishant Control Panel should
be provided to the end user as part of the commissioning and handover. In addition to training, the following docu-
ment provides a convenient reference point for Control Panel status indications, controls and actions.

Control Panel Operation 2
Man-1452EN Rev.02
Sigma ZXTOperation Manual
2
Section 2
Control Panel Operation
Manual Only Mode
Manual Only mode will prevent the release of extinguishant being activated by automatic detection devices. Panel
will indicate as follows:
• Mode key-switch will be in the Manual position
• Manual LED will be illuminated
• LCD will display panel status as Manual mode.
EXTINGUISHANT RELEASE CAN ONLY BE INSTIGATED BY MANUAL INTERVENTION
Auto Mode
In Auto mode extinguishant release can be instigated by either automatic detection devices or manual intervention:
• Mode key-switch will be in the Auto position
• Auto LED will be illuminated
• LCD will display panel status as Auto & Manual mode.
EXTINGUISHANT RELEASE CAN BE INSTIGATED BY AUTOMATIC DETECTION OR
MANUAL INTERVENTION
Reserve Selected
Released
Abort Operated
Hold Operated
Pre-activated/
Activated
Low Pressure
Flooding Zone
Fault / Disabled
Extinguishant
Disablement
Power On
Zone 1 Fire
Zone 2 Fire
Zone 3 Fire
Test
Buzzer Silenced
General
Disablement
Delay Active
General Fault
Power Fault
System Fault
Zone 1 Fault /
Disabled / Test
Zone 2 Fault /
Disabled/ Test
Zone 3 Fault /
Disabled / Test
Sounder Fault
Sounder Disabled
Auto Manual
Enable
Extract Fan On Manual Release
Alarm General Extinguishant Controls
Extinguishant Release
Manual
Pull Down - Push Button
*****SYSTEM STATUS*****
WED 01 JAN 2020 03:45:42
(MANUAL)
SYSTEM NORMAL
xevents controls
R
eserve Selected
R
e
l
e
as
e
d
Ab
ort O
p
erate
d
H
old O
p
erated
P
re-activate
d/
Activated
Activated
Lo
w Pre
ssu
re
Fl
oo
d
ing Zone
F
ault
/
Disabled
E
xtin
g
uishant
D
isablement
M
anual Releas
e
Po
wer
On
T
es
t
B
u
zzer Silence
d
Gener
al
D
i
sabl
emen
t
Delay Activ
e
General Faul
t
Po
wer F
ault
S
y
stem Fau
l
t
Extract Fan
On
Z
o
ne 1 F
i
r
e
Zone 2 F
i
r
e
Z
o
ne
3
Fir
e
Zone 1 Fau
l
t
/
Disabled
/
Tes
t
Zone 2 Fau
l
t
/
D
isabled
/
Test
Zone 3 Fault
/
Disabled
/
Tes
t
S
ou
n
d
er F
au
lt
Sounder Disable
d
E
n
ab
l
e
A
la
r
m
Gener
al
E
xtinguis
h
ant
Co
ntr
ols
E
xtinguis
h
ant Re
l
ease
Manua
l
P
u
ll
Down - Pus
h
Button
Reserve Selected
Released
Abort Operated
Hold Operated
Pre-activated/
Activated
Low Pressure
Flooding Zone
Fault / Disabled
Extinguishant
Disablement
Power On
Zone 1 Fire
Zone 2 Fire
Zone 3 Fire
Test
Buzzer Silenced
General
Disablement
Delay Active
General Fault
Power Fault
System Fault
Zone 1 Fault /
Disabled / Test
Zone 2 Fault /
Disabled/ Test
Zone 3 Fault /
Disabled / Test
Sounder Fault
Sounder Disabled
Auto Manual
Enable
Extract Fan On Manual Release
Alarm General Extinguishant Controls
Extinguishant Release
Manual
Pull Down - Push Button
*****SYSTEM STATUS*****
WED 01 JAN 2020 03:45:42
(MANUAL & AUTO)
SYSTEM NORMAL
xevents controls
Re
s
erve Se
l
ecte
d
Re
l
e
as
e
d
Abort O
p
erate
d
Ho
ld
O
p
erate
d
Pre-activate
d/
Activated
Activated
Low
P
ressur
e
F
l
oo
d
in
g
Zon
e
Fau
l
t / Disa
bl
e
d
Extin
g
uishan
t
Disa
bl
emen
t
Manual Releas
e
Po
wer
On
T
es
t
B
uzzer Si
l
ence
d
G
ener
al
D
i
sabl
emen
t
De
l
a
y
Active
Gener
al
F
ault
Power Fau
lt
System Fau
lt
Extract Fan
On
Z
o
ne 1 Fire
Z
o
ne 2 F
i
re
Z
o
ne
3
Fire
Zone 1 Fault
/
D
isa
bl
e
d
/
Test
Zone 2 Fau
l
t
/
Disabled/ Test
Zone 3 Fau
l
t
/
D
isabled / Test
Soun
d
er Fau
l
t
Soun
d
er Disa
bl
e
d
En
able
A
la
r
m
Gener
al
Extin
g
uis
h
an
t
Co
ntr
ols
Extinguis
h
ant Re
l
ease
M
a
n
ua
l
Pu
ll D
o
wn - P
us
h B
u
tt
on

Control Panel Operation 2
Man-1452EN Rev.02
Sigma ZXTOperation Manual
3
Zone Fire – Automatic Detection
Automatic detection zones which are not configured to activate the extinguishant release will indicate a general fire
condition when activated. A zonal fire will show the following indications:
• Mode Key-switch will be in the Auto position and the accompanying LED will be illuminated
• Fire LED and relevant Zone Fire LED’s will be illuminated
• Panel buzzer will sound urgently
• LCD will display detailed fire information
FOLLOW SITE FIRE PROCEDURE
Zone Fire – Manual mode
In manual mode the ZXT panel will only activate the extinguishant release sequence by manual activation. Zonal fires trig-
gered by automatic detection devices will activate a general alarm condition but will not activate the automatic extinguis-
hant release sequence, regardless of panel configuration. Zonal fires in Manual Mode will indicate as follows:
• Mode Key-switch will be in the Manual position and Manual LED will be illuminated
• Fire LED and relevant Zone Fire LED’s will be illuminated
• Panel buzzer will sound urgently
• LCD will display detailed fire information
FOLLOW SITE FIRE PROCEDURE
Reserve Selected
Released
Abort Operated
Hold Operated
Pre-activated/
Activated
Low Pressure
Flooding Zone
Fault / Disabled
Extinguishant
Disablement
Power On
Zone 1 Fire
Zone 2 Fire
Zone 3 Fire
Test
Buzzer Silenced
General
Disablement
Delay Active
General Fault
Power Fault
System Fault
Zone 1 Fault /
Disabled / Test
Zone 2 Fault /
Disabled/ Test
Zone 3 Fault /
Disabled / Test
Sounder Fault
Sounder Disabled
Auto Manual
Enable
Extract Fan On Manual Release
Alarm General Extinguishant Controls
Extinguishant Release
Manual
Pull Down - Push Button
Z1 ALARM 1 IN1
TUE 01 JAN 2019 02:55:28
ZONE 1
xevents controls
Re
s
erve Selecte
d
Rele
as
e
d
A
b
ort O
p
erate
d
Ho
ld
O
p
erate
d
Pre-activated
/
Activated
Activated
Low
P
ressur
e
Floodin
g
Zon
e
Fau
l
t / Disa
bl
e
d
Extinguis
h
an
t
Disa
bl
emen
t
Manua
l
Re
l
eas
e
P
ower
On
T
e
st
B
uzzer Si
l
ence
d
G
ener
al
D
i
sab
lemen
t
De
l
a
y
Active
Gener
al
F
ault
P
o
wer F
au
l
t
S
y
stem Fau
lt
Extract Fan
On
Zone 2 F
i
re
Z
o
ne
3
F
i
re
Zone 1 Fau
l
t
/
D
isa
bl
e
d
/
Test
Zone 2 Fault
/
Disabled
/
Test
Zone 3 Fau
l
t
/
D
isa
bl
e
d
/ Test
Soun
d
er Fau
l
t
Soun
d
er Disa
bl
e
d
En
ab
l
e
Al
a
r
m
Gener
al
Extinguishan
t
Co
ntr
o
l
s
Extinguishant Release
M
a
n
ua
l
Pu
ll D
o
wn - P
us
h B
u
tt
on
Panel
Buzzer
Sounds
Reserve Selected
Released
Abort Operated
Hold Operated
Pre-activated/
Activated
Low Pressure
Flooding Zone
Fault / Disabled
Extinguishant
Disablement
Power On
Zone 1 Fire
Zone 2 Fire
Zone 3 Fire
Test
Buzzer Silenced
General
Disablement
Delay Active
General Fault
Power Fault
System Fault
Zone 1 Fault /
Disabled / Test
Zone 2 Fault /
Disabled/ Test
Zone 3 Fault /
Disabled / Test
Sounder Fault
Sounder Disabled
Auto Manual
Enable
Extract Fan On Manual Release
Alarm General Extinguishant Controls
Extinguishant Release
Manual
Pull Down - Push Button
Z1 ALARM 1 IN1
TUE 01 JAN 2019 02:55:28
ZONE 1
Panel
Buzzer
Sounds
xevents controls
Re
s
erve Se
l
ecte
d
Rele
as
e
d
A
b
ort O
p
erate
d
Ho
ld
O
p
erate
d
Pre-activate
d/
Activated
Activated
Low
P
ressur
e
Floodin
g
Zon
e
Fau
l
t / Disa
bl
e
d
Extinguis
h
an
t
Disa
bl
emen
t
Manua
l
Re
l
eas
e
P
ower
On
T
e
st
B
uzzer Si
l
ence
d
G
ener
al
D
i
sabl
emen
t
De
l
a
y
Active
Gener
al
F
ault
P
o
wer F
ault
S
y
stem Fau
lt
Extract Fan
On
Zone 2 F
i
re
Z
o
ne
3
F
i
re
Zone 1 Fau
l
t
/
D
isa
bl
e
d
/
Test
Zone 2 Fault
/
Disabled
/
Test
Zone 3 Fau
l
t
/
D
isa
bl
e
d
/ Test
Soun
d
er Fau
l
t
Soun
d
er Disa
bl
e
d
En
able
Al
a
r
m
Gener
al
Extinguishan
t
Co
ntr
o
l
s
Extinguishant Release
M
a
n
ua
l
Pu
ll D
o
wn - P
us
h B
u
tt
on

Control Panel Operation 2
Man-1452EN Rev.02
Sigma ZXTOperation Manual
4
1st Stage Extinguishant Release – Automatic Activation
Zonal fires can be configured to activate the 1st Stage of an automatic gas release, this is indicated differently to a
general fire condition. 1st stage extinguishing release triggered by automatic detection devices will display the fol-
lowing indications:
• Mode key-switch will be in Auto position with Auto LED illuminated
• Fire LED and relevant Zone Fire LED’s will flash
• Pre-activated/Activated LED will flash
• Panel buzzer will sound urgently
• LCD will display detailed fire information
1st STAGE OF AUTOMATIC EXTINGUISHANT RELEASE ACTIVATED
Note: Extinguishant gas will not be released until the 2nd stage extinguishant release activations are met or manual
release is operated.
2nd Stage Extinguishant release – Automatic Activation
In automatic mode a combination of zonal fires can be configured to provide co-incidence alarms and activation of
the 2nd stage of the extinguishing release sequence – Automatic extinguishant release imminent. A 2nd stage ex-
tinguishing release triggered by automatic detection devices will display the following indications:
• Mode key-switch will be in Auto position with Auto LED illuminated
• Fire LED and relevant Zone Fire LED’s will be illuminated
• Pre-activated/Activated LED will be illuminated
• Panel buzzer will sound urgently
• LCD will display extinguishant release countdown timer
2nd STAGE OF AUTOMATIC EXTINGUISHANT RELEASE HAS BEEN ACTIVATED
EXTINGUISHANT RELEASE IS IMMINENT
EVACUATE AREA IMMEDIATELY AND FOLLOW SITE PROCEDURE
Reserve Selected
Released
Abort Operated
Hold Operated
Pre-activated/
Activated
Low Pressure
Flooding Zone
Fault / Disabled
Extinguishant
Disablement
Power On
Zone 1 Fire
Zone 2 Fire
Zone 3 Fire
Test
Buzzer Silenced
General
Disablement
Delay Active
General Fault
Power Fault
System Fault
Zone 1 Fault /
Disabled / Test
Zone 2 Fault /
Disabled/ Test
Zone 3 Fault /
Disabled / Test
Sounder Fault
Sounder Disabled
Auto Manual
Enable
Extract Fan On Manual Release
Alarm General Extinguishant Controls
Extinguishant Release
Manual
Pull Down - Push Button
Z1 ALARM 1 IN1
TUE 01 JAN 2019 02:55:28
ZONE 1
xevents controls
Panel
Buzzer
Sounds
Re
s
erve Selecte
d
Rele
as
e
d
A
b
ort O
p
erate
d
Ho
ld
O
p
erate
d
Low
P
ressur
e
Floodin
g
Zon
e
Fau
l
t / Disa
bl
e
d
Extinguis
h
an
t
Disa
bl
emen
t
Manua
l
Re
l
eas
e
P
ower
On
T
e
st
B
uzzer Si
l
ence
d
G
ener
al
D
i
sab
lemen
t
De
l
a
y
Active
Gener
al
F
ault
P
o
wer F
au
l
t
S
y
stem Fau
lt
Extract Fan
On
Zone 2 F
i
re
Z
o
ne
3
F
i
re
Zone 1 Fau
l
t
/
D
isa
bl
e
d
/
Test
Zone 2 Fault
/
Disabled
/
Test
Zone 3 Fau
l
t
/
D
isa
bl
e
d
/ Test
Soun
d
er Fau
l
t
Soun
d
er Disa
bl
e
d
En
ab
l
e
Al
a
r
m
Gener
al
Extinguishan
t
Co
ntr
o
l
s
Extinguishant Release
M
a
n
ua
l
Pu
ll D
o
wn - P
us
h B
u
tt
on
Reserve Selected
Released
Abort Operated
Hold Operated
Pre-activated/
Activated
Low Pressure
Flooding Zone
Fault / Disabled
Extinguishant
Disablement
Power On
Zone 1 Fire
Zone 2 Fire
Zone 3 Fire
Test
Buzzer Silenced
General
Disablement
Delay Active
General Fault
Power Fault
System Fault
Zone 1 Fault /
Disabled / Test
Zone 2 Fault /
Disabled/ Test
Zone 3 Fault /
Disabled / Test
Sounder Fault
Sounder Disabled
Auto Manual
Enable
Extract Fan On Manual Release
Alarm General Extinguishant Controls
Extinguishant Release
Manual
Pull Down - Push Button
***extinguisher status***
x EVENTS
2nd stage
ACTIVATED !!
S TO RELEASE
26
Panel
Buzzer
Sounds
Re
s
erve Se
l
ecte
d
Rele
as
e
d
A
b
ort O
p
erate
d
Ho
ld
O
p
erate
d
Low
P
ressur
e
Floodin
g
Zon
e
Fau
l
t / Disa
bl
e
d
Extinguis
h
an
t
Disa
bl
emen
t
Manua
l
Re
l
eas
e
P
ower
On
T
e
st
B
uzzer Si
l
ence
d
G
ener
al
D
i
sab
lemen
t
De
l
a
y
Active
Gener
al
F
ault
P
o
wer F
ault
S
y
stem Fau
lt
Extract Fan
On
Zone 2 F
i
re
Z
o
ne
3
F
i
re
Zone 1 Fau
l
t
/
D
isa
bl
e
d
/
Test
Zone 2 Fault
/
Disabled
/
Test
Zone 3 Fau
l
t
/
D
isa
bl
e
d
/ Test
Soun
d
er Fau
l
t
Soun
d
er Disa
bl
e
d
En
able
Al
a
r
m
Gener
al
Extinguishan
t
Co
ntr
o
l
s
Extinguishant Release
M
a
n
ua
l
Pu
ll D
o
wn - P
us
h B
u
tt
on

Control Panel Operation 2
Man-1452EN Rev.02
Sigma ZXTOperation Manual
5
Extinguishant Gas Released - Automatic
The control panel will indicate confirmation following a successful extinguishant release. If extinguishant release has
been activated by automatic detection the panel will indicate as follows:
• Fire LED and relevant zone LEDs will be illuminated
• Pre-activated/Activated LED will be illuminated
• Released LED will be illuminated
• Panel buzzer will sound urgently
• LCD will display extinguishant released message after countdown
EXTINGUISHANT HAS BEEN RELEASED DO NOT ENTER RISK AREA
FOLLOW SITE PROCEDURES
2nd Stage Extinguishing Release – Manual Activation
2nd stage extinguishing release sequence can be activated at any time through Manual intervention i.e. operation
of an Extinguishant Release push-button or Manual Release call point. Manual activation will bypass the 1st Stage
Extinguishing Release and activate the 2nd Stage of Extinguishant Release. The panel will indicate as follows:
• Pre-activated/Activated LED will be illuminated
• Manual release LED will be illuminated
• Panel buzzer will sound urgently
• LCD will display extinguishant release countdown timer
2nd STAGE OF AUTOMATIC EXTINGUISHANT RELEASE HAS BEEN ACTIVATED – EXTINGUISHANT RE-
LEASE IS IMMINENT. EVACUATE AREA IMMEDIATELY AND FOLLOW SITE PROCEDURE
Reserve Selected
Released
Abort Operated
Hold Operated
Pre-activated/
Activated
Low Pressure
Flooding Zone
Fault / Disabled
Extinguishant
Disablement
Power On
Zone 1 Fire
Zone 2 Fire
Zone 3 Fire
Test
Buzzer Silenced
General
Disablement
Delay Active
General Fault
Power Fault
System Fault
Zone 1 Fault /
Disabled / Test
Zone 2 Fault /
Disabled/ Test
Zone 3 Fault /
Disabled / Test
Sounder Fault
Sounder Disabled
Auto Manual
Enable
Extract Fan On Manual Release
Alarm General Extinguishant Controls
Extinguishant Release
Manual
Pull Down - Push Button
Panel
Buzzer
Sounds
Re
s
erve Selecte
d
A
b
ort O
p
erate
d
Ho
ld
O
p
erate
d
Low
P
ressur
e
Floodin
g
Zon
e
Fau
l
t / Disa
bl
e
d
Extinguis
h
an
t
Disa
bl
emen
t
Manua
l
Re
l
eas
e
P
ower
On
T
e
st
B
uzzer Si
l
ence
d
G
ener
al
D
i
sab
lemen
t
De
l
a
y
Active
Gener
al
F
ault
P
o
wer F
au
l
t
S
y
stem Fau
lt
Extract Fan
On
Zone 2 F
i
re
Z
o
ne
3
F
i
re
Zone 1 Fau
l
t
/
D
isa
bl
e
d
/
Test
Zone 2 Fault
/
Disabled
/
Test
Zone 3 Fau
l
t
/
D
isa
bl
e
d
/ Test
Soun
d
er Fau
l
t
Soun
d
er Disa
bl
e
d
En
ab
l
e
Al
a
r
m
Gener
al
Extinguishan
t
Co
ntr
o
l
s
Extinguishant Release
M
a
n
ua
l
Pu
ll D
o
wn - P
us
h B
u
tt
on
***EXTINGUISHER STATUS***
DISCHARGING
58 REMAINING
s
x EVENTS
Reserve Selected
Released
Abort Operated
Hold Operated
Pre-activated/
Activated
Low Pressure
Flooding Zone
Fault / Disabled
Extinguishant
Disablement
Power On
Zone 1 Fire
Zone 2 Fire
Zone 3 Fire
Test
Buzzer Silenced
General
Disablement
Delay Active
General Fault
Power Fault
System Fault
Zone 1 Fault /
Disabled / Test
Zone 2 Fault /
Disabled/ Test
Zone 3 Fault /
Disabled / Test
Sounder Fault
Sounder Disabled
Auto Manual
Enable
Extract Fan On Manual Release
Alarm General Extinguishant Controls
Extinguishant Release
Manual
Pull Down - Push Button
Panel
Buzzer
Sounds
Re
s
erve Se
l
ecte
d
Rele
as
e
d
A
b
ort O
p
erate
d
Ho
ld
O
p
erate
d
Low
P
ressur
e
Floodin
g
Zon
e
Fau
l
t / Disa
bl
e
d
Extinguis
h
an
t
Disa
bl
emen
t
Manua
l
Re
l
eas
e
P
ower
On
T
e
st
B
uzzer Si
l
ence
d
G
ener
al
D
i
sabl
emen
t
De
l
a
y
Active
Gener
al
F
ault
P
o
wer F
ault
S
y
stem Fau
lt
Extract Fan
On
Z
o
ne 1 F
i
re
Zone 2 F
i
re
Z
o
ne
3
F
i
re
Zone 1 Fau
l
t
/
D
isa
bl
e
d
/
Test
Zone 2 Fault
/
Disabled
/
Test
Zone 3 Fau
l
t
/
D
isa
bl
e
d
/ Test
Soun
d
er Fau
l
t
Soun
d
er Disa
bl
e
d
En
able
Al
a
r
m
Gener
al
Extinguishan
t
Co
ntr
o
l
s
Extinguishant Release
M
a
n
ua
l
Pu
ll D
o
wn - P
us
h B
u
tt
on
***extinguisher status***
x EVENTS
2nd stage
ACTIVATED !!
S TO RELEASE
26

Control Panel Operation 2
Man-1452EN Rev.02
Sigma ZXTOperation Manual
6
Extinguishant Gas Released - Manual
The control panel will indicate confirmation following a successful extinguishant release. If extinguishant release has
been activated by automatic detection the panel will indicate as follows:
• Pre-activated/Activated LED will be illuminated
• Manual Release LED will be illuminated
• Released LED will be illuminated
• Panel buzzer will sound urgently
• LCD will display extinguishant released message
EXTINGUISHANT HAS BEEN RELEASED DO NOT ENTER RISK AREA
FOLLOW SITE PROCEDURES
Reserve Selected
Released
Abort Operated
Hold Operated
Pre-activated/
Activated
Low Pressure
Flooding Zone
Fault / Disabled
Extinguishant
Disablement
Power On
Zone 1 Fire
Zone 2 Fire
Zone 3 Fire
Test
Buzzer Silenced
General
Disablement
Delay Active
General Fault
Power Fault
System Fault
Zone 1 Fault /
Disabled / Test
Zone 2 Fault /
Disabled/ Test
Zone 3 Fault /
Disabled / Test
Sounder Fault
Sounder Disabled
Auto Manual
Enable
Extract Fan On Manual Release
Alarm General Extinguishant Controls
Extinguishant Release
Manual
Pull Down - Push Button
Panel
Buzzer
Sounds
Re
s
erve Selecte
d
A
b
ort O
p
erate
d
Ho
ld
O
p
erate
d
Low
P
ressur
e
Floodin
g
Zon
e
Fau
l
t / Disa
bl
e
d
Extinguis
h
an
t
Disa
bl
emen
t
Manua
l
Re
l
eas
e
P
ower
On
T
e
st
B
uzzer Si
l
ence
d
G
ener
al
D
i
sab
lemen
t
De
l
a
y
Active
Gener
al
F
ault
P
o
wer F
au
l
t
S
y
stem Fau
lt
Extract Fan
On
Z
o
ne 1 F
i
re
Zone 2 F
i
re
Z
o
ne
3
F
i
re
Zone 1 Fau
l
t
/
D
isa
bl
e
d
/
Test
Zone 2 Fault
/
Disabled
/
Test
Zone 3 Fau
l
t
/
D
isa
bl
e
d
/ Test
Soun
d
er Fau
l
t
Soun
d
er Disa
bl
e
d
En
ab
l
e
Al
a
r
m
Gener
al
Extinguishan
t
Co
ntr
o
l
s
Extinguishant Release
M
a
n
ua
l
Pu
ll D
o
wn - P
us
h B
u
tt
on
***EXTINGUISHER STATUS***
DISCHARGING
58 REMAINING
s
x EVENTS

Control Panel Operation 2
Man-1452EN Rev.02
Sigma ZXTOperation Manual
7
Fault Condition
The control panel will indicate active fault conditions as:
• General Fault LED will be illuminated
• Specific fault LED will illuminate i.e. Sounder fault, Power fault etc.
• Buzzer will sound continuously
• LCD screen will display detailed fault information
CALL MAINTENANCE ENGINEER URGENTLY
Note: Active fault conditions can prevent successful operation of the system and must be dealt with quickly
Reserve Selected
Released
Abort Operated
Hold Operated
Pre-activated/
Activated
Low Pressure
Flooding Zone
Fault / Disabled
Extinguishant
Disablement
Power On
Zone 1 Fire
Zone 2 Fire
Zone 3 Fire
Test
Buzzer Silenced
General
Disablement
Delay Active
General Fault
Power Fault
System Fault
Zone 1 Fault /
Disabled / Test
Zone 2 Fault /
Disabled/ Test
Zone 3 Fault /
Disabled / Test
Sounder Fault
Sounder Disabled
Auto Manual
Enable
Extract Fan On Manual Release
Alarm General Extinguishant Controls
Extinguishant Release
Manual
Pull Down - Push Button
SOUNDER 1 1 IN1
open ciruit
TUE 01 JAN 2019 11:21:34
Reserve Selected
Rele
as
e
d
A
b
ort O
p
erate
d
Hold O
p
erated
Pre-activated
/
Activated
Activated
Low
P
ressur
e
F
l
oo
d
ing Zon
e
Fau
l
t / Disa
bl
e
d
Extin
g
uishan
t
Disa
bl
emen
t
M
a
n
ua
l Rele
ase
Po
wer
On
T
es
t
Buzzer Si
l
ence
d
G
ener
al
D
i
sab
lemen
t
De
l
a
y
Active
Power Faul
t
System Fau
lt
Extract Fan
On
Z
o
ne 1 F
i
re
Zone 2 F
i
re
Z
o
ne
3
Fire
Zone 1 Fau
l
t
/
D
isa
bl
e
d
/
Tes
t
Zone 2 Fau
l
t
/
Disabled/ Tes
t
Zone 3 Fau
l
t
/
D
isabled
/
Tes
t
Soun
d
er Disa
bl
e
d
Au
t
o
M
a
n
ual
En
able
A
la
r
m
Gener
al
Extin
g
uis
h
an
t
Co
ntr
ols
Extinguis
h
ant Re
l
ease
M
a
n
ual
Pu
ll D
o
wn - P
us
h B
u
tt
on
Panel
Buzzer
Sounds
xevents controls

Control Panel Operation 2
Man-1452EN Rev.02
Sigma ZXTOperation Manual
8
Disablements
During maintenance and testing users can disable functions on the panel to prevent false activations, evacuations
etc. Disablements will be indicated as follows:
• General Disablement LED will be illuminated
• Specific Disablement LED will illuminate indicating the function/circuit that is disabled i.e. Zone 1 disabled,
Sounder disabled etc.
• Buzzer will sound continuously
• LCD will display the current active state of the zone. Inside the brackets this will be:
(NORMAL) - No active faults or fires on zone
(FAULT) - An Active fault exists on the detection zone. Enabling a zone with an active fault will activate the fault
condition for that zone.
(IN FIRE) - An active fire exists on the on the detection zone. Enabling a zone with an active fire condition will
activate a fire event for that zone triggering all associated fire cause and effects.
Important safety information!!
The status of detection zones must be checked before enabling any detection zones, it must be
ensured the zone status in the brackets shows (NORMAL) before enabling. A panel reset should be
completed prior to enabling to clear any active latched alarm or fault conditions. If the zone status
remains in fire or fault state after a reset the condition will need to be addressed on the zone itself i.e.
clear smoke from detector, repair fault.
VIGILANCE MUST BE MAINTAINED DURING DISABLEMENT PERIODS
Note: Disablements should be cleared as soon as the reason for disablement has completed.
Reserve Selected
Released
Abort Operated
Hold Operated
Pre-activated/
Activated
Low Pressure
Flooding Zone
Fault / Disabled
Extinguishant
Disablement
Power On
Zone 1 Fire
Zone 2 Fire
Zone 3 Fire
Test
Buzzer Silenced
General
Disablement
Delay Active
General Fault
Power Fault
System Fault
Zone 1 Fault /
Disabled / Test
Zone 2 Fault /
Disabled/ Test
Zone 3 Fault /
Disabled / Test
Sounder Fault
Sounder Disabled
Auto Manual
Enable
Extract Fan On Manual Release
Alarm General Extinguishant Controls
Extinguishant Release
Manual
Pull Down - Push Button
Reserve Selected
Rele
as
e
d
A
b
ort O
p
erate
d
Ho
ld
O
p
erate
d
Pre-activated
/
Activated
Activated
Low
P
ressur
e
F
l
oo
d
ing Zon
e
Fau
l
t / Disa
bl
e
d
Extin
g
uishan
t
Disa
bl
emen
t
M
a
n
ua
l Rele
as
e
Po
wer
On
T
es
t
Buzzer Si
l
ence
d
De
l
a
y
Active
Gener
a
l F
au
l
t
Power Fau
lt
System Fau
l
t
Extract Fan
On
Z
o
ne 1 F
i
re
Zone 2 F
i
re
Z
o
ne
3
Fire
Zone 2 Fau
l
t
/
Disabled/ Test
Zone 3 Fau
l
t
/
D
isabled
/
Tes
t
Soun
d
er Fau
l
t
Soun
d
er Disa
bl
e
d
Au
t
o
M
a
n
ual
En
ab
l
e
A
la
r
m
Gener
al
Extin
g
uis
h
an
t
Co
ntr
ols
Extinguis
h
ant Re
l
ease
M
a
n
ual
Pu
ll D
o
wn - P
us
h B
u
tt
on
**CIE ZONE DISABLEMENT**
>ZONE 1(NORMAL):DISABLED
ZONE 2(NORMAL):ENABLED
ZONE 2(NORMAL):ENABLED
Panel
Buzzer
Sounds
xevents controls

Control Panel Operation 2
Man-1452EN Rev.02
Sigma ZXTOperation Manual
9
Test Mode
Test mode allows automatic detection devices connected to the zones to be tested without activating the system.
Test mode will be indicated as follows:
• Test LED will be illuminated
• Zone Test LED for the relevant zone will be illuminated
• Buzzer will sound continuously
• LCD screen will display detailed test information
ENSURE TEST MODE IS CLEARED ONCE TESTING IS COMPLETE
Reserve Selected
Released
Abort Operated
Hold Operated
Pre-activated/
Activated
Low Pressure
Flooding Zone
Fault / Disabled
Extinguishant
Disablement
Power On
Zone 1 Fire
Zone 2 Fire
Zone 3 Fire
Test
Buzzer Silenced
General
Disablement
Delay Active
General Fault
Power Fault
System Fault
Zone 1 Fault /
Disabled / Test
Zone 2 Fault /
Disabled/ Test
Zone 3 Fault /
Disabled / Test
Sounder Fault
Sounder Disabled
Auto Manual
Enable
Extract Fan On Manual Release
Alarm General Extinguishant Controls
Extinguishant Release
Manual
Pull Down - Push Button
Reserve Selected
Re
l
e
as
e
d
A
b
ort O
p
erate
d
Ho
ld
O
p
erate
d
Pre-activated
/
Activated
Activated
Low
P
ressur
e
F
l
oo
d
ing Zon
e
Fau
l
t / Disa
bl
e
d
Extin
g
uishan
t
Disa
bl
emen
t
M
a
n
ua
l Rele
ase
Po
wer
On
Buzzer Si
l
ence
d
G
ener
al
D
i
sab
lemen
t
De
l
a
y
Active
Gener
al
F
ault
Power Fau
lt
System Fau
lt
Extract Fan
On
Z
o
ne 1 F
i
r
e
Zone 2 F
i
r
e
Z
o
ne
3
Fir
e
Zone 2 Fau
l
t
/
Disabled/ Tes
t
Zone 3 Fau
l
t
/
D
isabled
/
Tes
t
Soun
d
er Fau
l
t
Soun
d
er Disa
bl
e
d
Au
t
o
M
a
n
ual
En
ab
l
e
A
la
r
m
Gener
al
Extin
g
uis
h
an
t
Co
ntr
ols
Extinguis
h
ant Re
l
ease
M
a
n
ual
Pu
ll D
o
wn - P
us
h B
u
tt
on
*****SYSTEM STATUS*****
(MANUAL & AUTO)
ZONE IN TEST:1
x EVENTS cONTROLS
TUE 01 JAN 2019 11:00:15
Panel
Buzzer
Sounds

How to... 3
Man-1452EN Rev.02
Sigma ZXT Operation Manual
10
Section 3
How to...
The following Section provides information on how to perform common Panel functions.
View Active Events
When multiple active events exist on the panel the view active events function allows the user the ability to scroll
through details of each active event.
In access level 1 press the ‘X’ key, in USER MENU (Access Level 2) select the VIEW ACTIVE EVENTS menu option
1. The VIEW ACTIVE EVENTS screen provides a synopsis of how many active events of each type exist on the panel.
2. Use the up/down cursor keys to select the event type to view and press enter key.
3. Details of each of the active events of the type selected can be scrolled through using the up/down cursor keys.
View Event Log
The panel stores up to 1000 events within its memory these events can be scrolled through on the screen, providing
diagnostic information:
1. Enter USER MENU (Access Level 2) using passcode or enable key switch.
2. Select EVENT LOG FUNCTIONS menu option.
3. Alarm counter screen will be displayed, with the text at the top DISPLAY ON SCREEN. Press enter to view
events on screen.
4. Use the up/down cursor keys to scroll through event log events on the LCD.
5. To filter event types use the left/right arrows.
Note: The EVENT LOG FUNCTIONS screen also shows an alarm counter, indicating how many alarms have been
activated on the control panel.
Put a Detection Zone Into Test Mode
Test Mode enables automatic detection devices connected to zones to be tested without the risk of activating an
extinguishant. During test any alarms activated will be indicated on the Control Panel but no operations will be ac-
tioned.
To place a zone in Test mode:
1. Enter USER MENU (Access Level 2) using passcode or Enable key switch.
2. Select TEST menu option.
3. Use up and down cursor keys to highlight zone to put into Test.
4. Use left/right cursor keys to change zone setting to read IN TEST.
5. Zonal test and general Test LEDs will be illuminated.
Once testing is complete zone can be returned to NORMAL mode using the same menu setting.

How to... 3
Man-1452EN Rev.02
Sigma ZXT Operation Manual
11
Disable a Detection Zone
Allows disablement of automatic detection zones during periods of maintenance, hot works etc. which could cause
an unwanted activation.
To disable a zone:
1. Enter USER MENU (Access Level 2) using passcode or enable key switch.
2. Select ENABLE/DISABLE menu option.
3. Select CIE ZONES menu option.
4. Use the up/down cursor keys to highlight the zone to be disabled.
5. Use left/right cursor keys to toggle setting to DISABLED.
6. Relevant Zone disablement LED and General Disablement LEDs will illuminate.
The disabled zone can be returned to normal operation using the same menu setting and changing the setting to
ENABLE.
Warning!! Disabled zones will not activate any alarm conditions. Do not enable zones which have active fire
or fault conditions. The "CIE ZONE DISABLEMENT" displays the active state of disable zones in brackets.
It is recommended to perform a panel reset and ensure status of the zone on the "CIE ZONE DISABLEMENT"
screen shows "(NORMAL) before enabling.
Disable Extinguishant Release Output
Allows disabling of the extinguishant release output during periods of maintenance, hot works etc. which could
cause an unwanted activation:
1. Enter USER MENU (Access Level 2) using passcode or Enable key-switch.
2. Select ENABLE/DISABLE menu option.
3. Select ECD SUBSYSTEM menu option.
4. Use up/down cursor keys to select EXTING RELEASE.
5. Use left/right cursor key to change setting to DISABLED.
6. General disablement, Extinguishing Disablement and Flooding Zone Fault/Disabled LEDs will illuminate.
To enable the extinguishing release output return to menu setting and toggle setting back to ENABLED.
Warning!! Alarms and countdowns will operate as normal during disablement of the extinguishing release
output however extinguishing output(s) will not operate and extinguishant will NOT be released.
Disable Manual Release Function
Allows disabling of the manual extinguishant release push-button and manual release inputs on the extinguishant
system to prevent manual activation of an extinguishant release.
1. Enter USER MENU (Access Level 2) using passcode or enable key switch.
2. Select ENABLE/DISABLE menu option.
3. Select ECD SUBSYSTEM menu option.
4. Use up/down cursor keys to select ALL MANUAL RELEASE.
5. Use left/right cursor key to change setting to DISABLED.
6. General disablement and Flooding Zone Fault/Disabled LEDs will illuminate.
To enable the Manual Release function output return to menu setting and toggle setting back to Enable.
Warning!! Manual activation of the extinguishing is not possible during a manual release function disable-
ment. Extinguishant release can still be triggered via automatic detection devices.

How to... 3
Man-1452EN Rev.02
Sigma ZXT Operation Manual
12
Disable Relay Outputs
Allows disabling of panel relay outputs, during periods of maintenance or testing to prevent unwanted signalling.
1. Enter USER MENU (Access Level 2) using passcode or Enable key-switch.
2. Select ENABLE/DISABLE menu option.
3. Select RELAYS menu option.
4. Use up/down cursor keys to select the relay output to disable.
5. Use left/right cursor key to change setting to DISABLED.
6. General Disablement LED will illuminate.
To enable relay outputs return to menu setting and toggle setting back to ENABLED.
Warning!! Disablement of relay outputs will prevent any remote signalling or activation of remote equip-
ment.
Disable Sounder Outputs
Allows disabling of sounder outputs, during periods of maintenance or testing to prevent unwanted activations.
1. Enter USER MENU (Access Level 2) using passcode or Enable key-switch.
2. Select ENABLE/DISABLE menu option.
3. Select SOUNDERS menu option.
4. Use up/down cursor keys to select DISABLE ALL or select a specific sounder from the list.
Note: DISABLE AL will disable only sounder outputs listed on the LCD.
5. Use left/right cursor key to toggle setting of the selected option.
6. General Disablement and Sounder Disable LED will illuminate.
To enable sounder outputs return to menu setting and toggle setting back to enabled state.
Warning!! Disablement of sounder outputs will prevent any notification of alarms to personnel within the
risk area.
Disable Monitored Inputs
Allows disabling of monitored outputs, during periods of maintenance or testing to prevent unwanted activations.
1. Enter USER MENU (Access Level 2) using passcode or Enable key-switch.
2. Select ENABLE/DISABLE menu option.
3. Select MONITORED INPUTS menu option.
4. Use up/down cursor keys to highlight the input to disable.
5. Use left/right cursor key to change setting to DISABLED.
6. General Disablement and Flooding Zone Fault/Disabled LED will illuminate.
To enable monitored inputs return to menu setting and toggle setting back to ENABLED.
Warning!! Disablement of monitored inputs will prevent the inputs from being activated, any functions as-
sociated with the input will not operate.
Disable Panel Inputs
Allows disabling of non-monitored panel inputs, during periods of maintenance or testing to prevent unwanted sig-
nalling.
1. Enter USER MENU (Access Level 2) using passcode or Enable key-switch.
2. Select ENABLE/DISABLE menu option.
3. Select PANEL INPUTS menu option.
4. Use up/down cursor keys to select the input to disable.
5. Use left/right cursor key to change setting to DISABLED.
6. General Disablement and any other associated Disablement LEDs will illuminate.
To enable panel inputs return to menu setting and toggle setting back to ENABLED.
Warning!! Disablement of relay outputs will prevent any remote signalling or activation of remote equip-
ment.

How to... 3
Man-1452EN Rev.02
Sigma ZXT Operation Manual
13
Enable Sounder Delay
Function allows the option to delay or not delay activation of 1st Stage Sounder Outputs S1 and S2 when an alarm
is activated on the Panel. The delay period must be programmed in the ENGINEERING MENU (Access Level 3) by
a qualified engineer.
1. Enter USER MENU (Access level 2) using passcode or Enable key-switch.
2. Select SOUNDER DELAY menu option.
3. Use up/down cursor keys to highlight sounder output.
4. Use left/right keys to select between IMMEDIATE and DELAYED.
Immediate –When an alarm occurs on the panel sounder outputs will operateimmediately.
Delayed - When an alarm occurs on the panel a pre-determined delay period will pass before sounder outputs operate.

User Controls Overview 4
Man-1452EN Rev.02
Sigma ZXT User Manual
14
Section 4
User Controls Overview
The following Section provides an overview of Panel controls according to user Access Level.
User Controls - Access Level 1
Access Level 1 allows any user basic Control Panel functionality, including the ability to initiate manual release of
the extinguishant system.
User Controls - Access Level 1
Lamp Test Press and hold lamp test button for at
least 3 sec, hold button until all LEDs
are checked and LCD scrolls through
one full colour sequence (Red, Green,
Blue). Release lamp test button to stop
the test.
Silence Buzzer Dependent on panel configuration
Silence buzzer button may be available
at level 1.
Press the silence buzzer button to stop
the local panel buzzer sounding.
Silence buzzer LED will illuminate on
panel.
Buzzer will resound for any new events
that occur.
Access User Menu via Passcode Press the enter key to see the pass-
code entry screen.
Enter the 4 digit code using the cursor
keys (Up = 1, Right = 2, Down = 3, Left
= 4)
Note:Default passcode is 2222 it is rec-
ommended tochange this to restrict
access to approved personnel only.
Manual Release Manual Release function manually acti-
vates the gas release sequence, it
requires a dual action to prevent acci-
dental operation.
Pull down yellow “Manual Extinguish-
ant Release” flap to expose red push-
button
Press red push-button, 2nd stage extin-
guishant release sequence will begin.
Countdown to release will be shown on
display.
****passcode entry****
*****
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Extinguishant Release
Pull Down - Push Button
Manual

User Controls Overview 4
Man-1452EN Rev.02
Sigma ZXT User Manual
15
User Controls - Access Level 2
Access Level 2 provides the user additional controls for operation of the Control Panel. Access Level 2 can be
achieved using the Enable key-switch on the Panel fascia or by entering a passcode through the LCD.
Access Level 2 provides the user functionality which can impact the performance of the Control Panel and therefore
MUST be restricted to trained personnel only.
User controls – Access level 2
(Requires operation of enable key switch or passcode)
Enable Key-switch Requires a 901 key.
Insert key and turn to the right position
(solid white dot) to access level 2.
LCD will display the USER MENU.
Note: Access Level 2 can also be
accessed by passcode.
Access Level 2 via Passcode Press enter key to display passcode
entry screen.
Enter 4 digit passcode using cursor
keys - Up = 1, Right = 2, Down = 3, Left
= 4
Note:Default passcode is 2222 it is rec-
ommended to change this to your own
specific passcode. Passcodes can be
changed by a qualified service engi-
neer.
Silence Buzzer Dependent on Panel configuration
Silence buzzer button may be available
at Access Level 2.
Press the Silence Buzzer button to stop
the local panel buzzer sounding.
Silence buzzer LED will illuminate on
Panel.
Buzzer will resound for any new events
that occur.
Silence Alarm Press the Silence Alarm button.
1st stage Alarm notification devices
connected to the panel will stop operat-
ing.
Note: Silence Alarm function is applica-
ble to 1st stage notification devices
only, 2nd stage notification devices can-
not be silenced.
Re-sound Alarm Press the Re-sound Alarm button.
1st Stage Sounders which have been
silenced using the Silence Alarm button
will start operating again.
Enable
****passcode entry****
*****
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