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AR7525 Series Alarm Annunciators
AR7525 Series Split Alarm Annunciator
Ultimate Flexibility and Reliability
AR7525 Series alarm Annunciator,

Full Function, Flexible and Reliable
provides an ideal solution to all your
alarm system requirements.
 Separate Display and Electronics
Split Architecture allows remote
installation of electronic modules and
window display.
The modular construction allows system
of almost any size .
Exceptional flexibility, reliability and
programmability.
 No Master Module
 Modular Multipoint Design
 Common and Auxiliary Relays
 Field Programmable
 Alarm sequence to ISA-S18.1
 Long Life LEDs
A large range of options can be supplied
in addition to the standard unit, to fulfill
all annunciator requirements.
 All Sizes Configurable
 Low Cost for all system sizes
AR7525 Series Alarm Annunciators
Features
Modular Split Construction
The modular split construction of AR7525
Series allows almost any size to be constructed.
Split Architecture allows remote installation of
electronic modules and window display.
No Master Module
Reliability is the first priority in safety critical
applications like alarm annunciation. The
AR7525 Series annunciator uses a unique
solution to provide unparallel reliability. Unlike
microprocessor controlled systems, the AR7525
Series has no master module and Each alarm
point has it’s own logic card.
Power Supply
A nominal 24VDC power supply is required
to run the annunciator system. This can be
an unregulated supply (19 to 30VDC) and
there is no need for transient suppression.
Push Buttons
System supports all push buttons necessary for
different operating sequences. The available push
buttons are “Acknowledge”, Reset”, “ Test” and
“Mute”.
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Illumination
Back-lit display by almost Unlimited Life time,
120°, high bright LEDs. Each H21 type
(medium size window) has two LEDs per
alarm point. This number for H11 (large
window) is 4 and for H44 (small window) is
1 LED per alarm point.
Windows are bright enough to be clearly seen in
the highest ambient light.
Available in different colors.
Inputs
Inputs are generally normally open or normally
close voltage free contacts or voltage input
through an Opto-coupler, configurable by jumper
settings for each alarm point. Option of voltage
input from field, PLC or personal computer can
be supplied with contact voltages of 24, 48, 110,
220 (AC or DC voltages).
Outputs
System Supports the following outputs:
- Display Output
- Audio Output
- Auxiliary Output
- Common Alarm Output
- First_Up Output
Shallow Depth
Auxiliary Relay
The display is only 78mm deep.
Services
No special tools are required to replace ,
replace cards or changing the operating
sequence and configuration.
Each alarm point can be supplied with an
individual repeat relay. The repeat relays can
be set to follow the input or output. NO and NC
contacts are available for each repeat relay.
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AR7525 Series Alarm Annunciators
Window/Cell Configuration:
Type H11
75mm



40mm

50mm
65mm




Type H12
Type H21

40mm
20mm


20mm

65mm





Outer Sizes As Above
32.5mm

32.5mm

Outer Sizes As Above
Display Size Calculation
_ 0.5
Length(mm)=Cx75+37+
_ 0.5
Height(mm)= Rx50+37+
Type H44
20mm

Cutout Size Calculation

20mm



32.5mm

32.5mm
Outer Sizes As Above
Type V21

_ 0.5
Length(mm)= Cx75+33+
_ 0.5
Height(mm)= Rx50+33+
C: Number of Columns
R: Number of Rows

Integral Pushbutton & Buzzer Module


40mm

32.5mm

32.5mm
As an option, an integral “Pushbutton and Buzzer
Module” can be fitted in the bottom right window
Outer Sizes As Above
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AR7525 Series Alarm Annunciators
Alarm Sequences
Each alarm channel can be configured to suit the operating sequence required as listed in the ISA
publication Annunciator Sequences and Specification S18.1, 1979. Systems can be configured with
different features on different alarm ways. Available Sequences on standard AR7525 (Field Selectable)
are “Manual Reset”(M), “Auto Reset ”(A), “Manual Reset First Out (F2M-1)” and “Auto Reset First
Out (F1A). Other sequences need special order.
Manual Reset / Sequence code M
Process Abnormal or Normal
Sequence Acknowledged
Visual On
Audible Silent
to
abnormal
Process Abnormal or Normal
Sequence Alarm
Visual Flashing
acknowledge Audible Audible



reset
while
normal
Process Normal
Sequence Normal
Visual Off
Audible Silent
Auto Reset / Sequence code A


acknowledge
while normal

Process Abnormal
Sequence Acknowledged
Visual On
Audible Silent
acknowledge
while
abnormal
to
abnormal

return
while
normal
Process Normal
Sequence Normal
Visual Off
Audible Silent
Process Abnormal or Normal
Sequence Alarm
Visual Flashing
Audible Audible
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AR7525 Series Alarm Annunciators
Automatic Reset First Out / Sequence F1A
With No Subsequent Alarm State

acknowledge while normal
(first out reset)
subsequent
to abnormal
Process Abnormal
Sequence Acknowledged
Visual On
Audible Silent


first to
abnormal

return to
normal
Process Normal
Sequence Normal
Visual Off
Audible Silent
acknowledge
whileabnormal
(first out reset)
Process Abnormal or Normal
Sequence First Alarm
Visual Flashing
Audible Audible
Manual Reset First Out / Sequence F2M-1
With No Subsequent Alarm
Flashing and Silence Pushbutton
reset
while
normal

Process Normal
Sequence Normal
Visual Off
Audible Silent
first to
abnormal

subsequent
to abnormal

acknowledge
(first out reset)
acknowledge
(first out reset)
Process Abnormal or Normal
Sequence First Alarm
Visual Flashing
Audible Audible
Process Abnormal or Normal
Sequence First Silenced
Visual Flashing
Audible Silent

Process Abnormal or Normal
Sequence Acknowledged
Visual On
Audible Silent


Process Abnormal or Normal
Sequence Subsequent Alarm
Visual On
Audible Audible

mute and
acknowledge
mute
AR7525 Series Alarm Annunciators
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System Specification
 Modular Multi-point Split Design
 Remote Logic Controllers
 Any number of windows
 High Reliability and Maintenance Free
 Mounting: Panel Mounting (Flush)
 Low Cost for all system sizes
Construction
Material: Aluminum



 Illumination: Almost Unlimited Life Time,
 Alarm Text: Engraving or Translucent Film
120° high bright LEDs
 Input Voltage: 24VDC or AC
 Installed Display Depth: Only 78mm (3.07”)
 Power Consumption: 50mA Per Point,
4mA (at 24VDC) in Quiescent mode
 For Display, Cutout and Window Size,
see Configuration Page
Options and Order Number
Number of
Columns

(Specify)
1- With Auxiliary Relay
0- No Auxiliary Relay



AR7525 03 04 H11 L V1 1



Number of
Rows
Window
Configuration
0
Alarm Sequence
1- Standard Sequences
(M, A, F2M-1, F1A)
0- Other Sequences
(Specify)
0

Model #
Signal Voltage
V1: 24/110V
V2: 24/48V
V3: 24/220V
V4: Others
Built-in Buzzer &
Pushbutton Module
1- Yes
0-No