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Pittway Tecnologica Srl, Via Caboto 19/3, 34147 Trieste, ITALY

I56-3310-003

D200-51-00

22051EISE

0832

0832-CPD-0199

102 mm

47 mm

B501AP

-20°C

60°C

T4

-20°C

40°C

T5

112.5g

INSTALLATION AND MAINTENANCE INSTRUCTIONS 

FOR MODEL 22051EISE INTRINSICALLY SAFE 

INTELLIGENT PHOTO ELECTRONIC SMOKE SENSOR

EN

Figure 1: Cleaning 

the Sensor

Before installing the sensor, please thoroughly read System Sensor Europe’s “Guide 
to Intelligent Fire Systems”.  Copies of this manual are available at no charge from 
System Sensor.

GENERAL DESCRIPTION

Model 22051EISE is an intrinsically safe smoke detector that combines a photo 
electronic sensing chamber with analogue addressable communications and is for use 
in hazardous areas where potentially explosive atmospheres are likely to arise. The 
classification of equipment required must be confirmed with your responsible authority.  
The sensor communicates via a dedicated Galvanic Isolator Barrier with an IST200 
Translator Module which relays the data to the Control Panel.  Rotary decade switches 
are provided for setting the sensor address.  
Two LEDs on each sensor provide a local 360° visible sensor indication.

SPECIFICATIONS

Operating Voltage Range: 

15 to 24 VDC

Max. Avg. Standby Current: 

220 µA @20 VDC (One communication every 5 
sec. With LED blink enabled)

Max.  Alarm Current (LED on): 

3 mA @ 24 VDC

Operating Humidity Range: 

10% to 93% Relative Humidity, Non-Condensing

Intrinsic Safety Rating: 

Ex ia IIC T5, T4

This detector has been independently tested and certified to EN54 part 7: 2000 and 
BASEEFA approved for intrinsic safety.

ACCESSORIES (Available Separately from System Sensor)

IST200 Translator Module 

May drive up to 15 22051EISE sensors

Pepperl and Fuchs Y72221  

Dedicated Galvanic Isolator Barriers for  

 

22051EISE (drive up to 15 sensors).

WIRING GUIDE

Refer to the installation instructions supplied with the IST200 Translator Module, and 
B501AP Base for wiring details. 

Note 1:

   All wiring must conform to applicable local and national codes and regulations.

Note 2:

 Verify that all sensor bases are installed and that polarity of the wiring is 

correct at each base.

WARNING

Disconnect loop power before installing sensors. Notify proper authorities.

SENSOR INSTALLATION

1.  Set the sensor address (see figure 2) by turning the two rotary switches, selecting a 

number between 01and 99.  Record the address on the label attached to the base.

4

4

0

2

3

1

0

ONES

TENS

2

3

1

6 7

5

5

9

8

6

9

8

7

2.  Insert the sensor into the base and rotate it clockwise until it locks into place.
3.  After all the sensors have been installed, apply power to the system.
4.  Test the sensor as described under 

TESTING.

5.  Reset the sensor by communication command from the panel.

Tamper-Resistance.

Model 22051EISE includes a feature that, when activated, prevents removal of the 
sensor without the use of a tool.  Refer to the installation instructions for the sensor 
base for details of how to use this feature.

CAUTION

Dust covers help to protect units during shipping and when first installed. 

They are not intended to provide complete protection against contamination 

therefore sensors should be removed before construction, major re-decoration 

or other dust producing work is started.   Dust covers must be removed before 

system can be made operational.

MAINTENANCE

Before cleaning, disable the system to prevent unwanted alarms:
1.  Remove the sensor to be cleaned from the system.
2.  Gently release each of the four cover removal tabs that hold the cover in place (see 

figure 1) and remove the cover.

3.  Vacuum the outside of the screen carefully without removing it.

4.  Remove the sensor screen.  Pull the screen straight away from the sensing chamber 

until it snaps out of place.  

5.  Remove the chamber cover by pulling it gently away from the sensing chamber until 

it snaps out of place.

6.  Use a vacuum cleaner and/or clean, compressed air to remove dust and debris 

from the sensing chamber and sensing chamber cover.

7.  Re-install the sensing chamber cover by aligning the arrow moulded on the cover 

with the arrow printed on the circuit board and sliding the cover over the chamber, 
gently pressing it home until it snaps into place.

8.  Re-install the sensing chamber screen by sliding it over the sensing chamber.  

Rotate the screen until the locating tabs on the bottom rim locate in the cutouts in 
the chamber base, and the top of the screen is flush with the top of the chamber.

9.  Re-install the sensor cover.  Use the cover removal tabs and LEDs to align the cover 

with the sensor.  Snap the cover into place.

10. When all sensors have been cleaned, restore power to the loop and test the sensor(s) 

as described under 

TESTING

CAUTION

The Detector has a plastic enclosure that may present an electrostatic risk and 

must not be installed in a position where it may be subject to a high dust-laden 

air flow.  Clean only with a damp cloth and do not rub.

TESTING

Sensors must be tested after installation and following periodic maintenance.  Disable 
the zone or system undergoing maintenance to prevent unwanted alarms.

IMPORTANT

If testing is carried out using non-intrinsically safe methods, it must be 

conducted outside the hazardous area.

Test the sensors as follows:

Magnet Test Method

1.  Test the sensor by positioning the test magnet (model M02-04-00 optional) against 

the sensor body approximately 2cm from LED 1, indicated by a mark on the detector 
cover as shown in figure 3.

2.  Both LED’s on the detector should latch into alarm within 30 seconds, activating the 

control panel.

Smoke Method

1.  Using generated smoke, or synthetic smoke aerosol from an approved manufacturer 

such as No Climb Products Ltd, subject the detector to controlled amounts of smoke 
in accordance with local codes of practice and manufacturer recommendations.  

2.  Both LED’s on the detector should latch into alarm within 30 seconds, activating the 

control panel.

After completion of the test notify the proper authorities that the system is operational.

WARNING

LIMITATIONS OF SMOKE DETECTORS

Smoke detectors must be used in conjunction with compatible equipment. 
Smoke detectors will not sense fires which start where smoke does not reach the 
detectors. 
A detector may not detect a fire developing on another level of a building. 
Smoke detectors also have sensing limitations.  Consideration must be made of the 
environment when selecting fire detectors.

Smoke detectors cannot last forever.

 Smoke detectors contain electronic parts. Even 

though detectors are made to last over 10 years, any of these parts could fail at any 
time. Therefore, test your smoke detector system at least semiannually. Clean and take 
care of your smoke detectors regularly. Taking care of the fire detection system you 
have installed will significantly reduce your product liability risks.

Figure 3: Test Magnet Position

Mark on Cover

LED 2

LED 1

Test Magnet

Figure 2: Rotary Decade Address Switch

 

TENS

UNITS

Summary of Contents for 22051EISE

Page 1: ...arms 1 Remove the sensor to be cleaned from the system 2 Gently release each of the four cover removal tabs that hold the cover in place see figure 1 and remove the cover 3 Vacuum the outside of the screen carefully without removing it 4 Remove the sensor screen Pull the screen straight away from the sensing chamber until it snaps out of place 5 Remove the chamber cover by pulling it gently away f...

Page 2: ... withstanding an A C test voltage of 500 VRMS to earth or frame of the equipment for a period of one minute without breakdown This note does not apply when using an isolation barrier R12 172 00 REV G CAUTION Please refer to control panel installation instructions for specific barrier control panel compatibility information Control Panel IST200 Translator Module 2 1 4 0832 0832 CPD 0199 EC DECLARAT...

Page 3: ... nicht gewährleistet Deshalb sollten die Melder vor Beginn von Konstruktions umfangreichen Dekorationsarbeiten oder sonstigen Aktivitäten mit Staubentwicklung entfernt werden Zur ordnungsgemäßen Funktion ist der Staubschutz vor der Inbetriebnahme des Melders abzunehmen WARTUNG Zur Vermeidung von Fehlalarmen sollte das System bzw die entsprechende Meldergruppe vor den Wartungsarbeiten abgeschaltet ...

Page 4: ... nach Masse oder dem Gehäuserahmen der Baugruppe für mindestens eine Minute standhalten Entfällt beim Einsatz einer Sicherheitsbarriere 5 Das System muss dauerhaft gekennzeichnet werden Die Kennzeichnung muss sich auf oder in unmittelbarer Nähe der Typenkennzeichnung der elektrischen Einrichtung oder auf der Schnittstelle zwischen den eigensicheren und nicht eigensicheren Stromkreis befinden Auf d...

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