TRIPLE WAVEBAND IR FLAME DETECTOR, EXPLOSION-PROOF /

DUST-PROOF, WITH REMOTE TEST FUNCTION CR1D-EW

■ Features
• Capable of detecting a 0.33m x 0.33m gasoline
pan fire at up to 60m
• Infrared sensing technology using three
wavebands for optimum false alarm immunity
• Omniview 360° four-color LED indicator for
visible indication of sensor operation from any
angle (Alarm, Trouble, Start-up, and Testing)
• Suitable for indoor and outdoor use
• Dust-poof and Water-proof equivalent to IP66/
IP67
• Responds to flickering flames
• Stylish and functional design
• Current consumption approx. 6mA (standby),
50mA (alarm)
• Adjustable angle bracket with fine scale
• Ex-proof class : Ex db II CT6Gb

■ Description
The CR1D-EW is a triple waveband infrared
flame detector ideal for indoor/outdoor hazardous
environments. Its three built-in infrared sensors can ■ Dimensions
detect fuel fires at long distances with a high immunity
to false alarms.
The CR1D-EW is equipped with a manual and
automatic Self-Test function to assure continued
reliable operation. Its Omniview™ indicator provides
360°visibility for easy status recognition by four types
of color illumination. (76)

The CR1D-EW has the same interface to a previous

178.9

model of 1RB1-EW, which provides compatibility for

wiring.
Optional weather-proof hood offers an enhancement
of tolerance to the rise of temperature due to the
direct sunlight. [Top]
[Mounting Pitch]
100
120

100 98.9 80
[Mounting Pitch] [Side]
120
[Front] (mm)

CRD-EW-14A CRD-EW-14B
Sunshade for CR1D-EW View angle restriction
hood for CR1D-EW

NOT TO BE USED FOR INSTALLATION PURPOSES.

Nittan reserves the right to make changes at any time without notice in prices, colours, materials,
components, equipment, specifications and models and also to discontinue models. CR1D-EW-DAT-00 Rev.0
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■ Directional Sensitivity and Range
Directional Sensitivity and Range Direction
0°

50°

50° 50°
0°

50°
Directional Range

100% 80% 60% 40% 20% 20% 40% 60% 80% 100%

Selectable Detector Sensitivity Detectable Flame Size

1m
Detector Sensitivity Detection Range
High (default) 60 m 30cm
50cm
10cm
Middle 30 m
Low 15 m
(Sensitivity = High)

(N-Heptane fire on a 0.1 m2 pan)

Detector sensitivity is selectable from 3 values by a dedicated setting tool. Detection range is a detectable
distance for a 0.1 m2 n-Heptane pan fire. The CR1D-EW has a detection range of 60 m away and a wide angle
of 100 degrees toward horizontal and vertical directions.

■ Triple Wavelength IR Detecting

Wavelength range for identifying a true fire

Fire (flame) has a characteristic peak at 4.4 µm in a spectral distribution, which is called as CO2 emission. The
CR1D-EW has 3 sensors that monitor the band of CO2 emission and two wavebands on either side respectively.
The detector avoids false alarms by the feature of frequency-fluctuation detection.

NOT TO BE USED FOR INSTALLATION PURPOSES.

Nittan reserves the right to make changes at any time without notice in prices, colours, materials,
components, equipment, specifications and models and also to discontinue models. CR1D-EW-DAT-00 Rev.0
Page 2 of 5
■ OMNIVIEW™ 360° LED
The CR1D-EW has a large ring OMNIVIEW™ 360°LED indicator to see detector status easily.

Red Yellow
Alarm Trouble

Green
Startup

Blue
Remote-Test

■ Self-Test Function
The CR1D-EW has self-test function that checking lens condition or device status either automatically or manually
to detect trouble condition. That is effective in preventing false alarms. The automatic self-test cycle is adjustable
to either every 1 hr, 12 hrs or 1 week to meet with peripheral environment.

Lens(sensor)

Yellow light indicating when lens or device has trouble

Normal Dust Water Condensation

LED indication for each status

Test Function Detector Status Output Signal LED Indicator
Normal Fire Red (steady)
Manual Test Lens Stains Trouble Yellow (Flashes every 4 seconds)
(By remote test switch)
Circuit Trouble Trouble Yellow (Flashes 2 times every 4 seconds)
Normal - Off
Automatic Test Lens Stains Trouble Yellow (Flashes every 4 seconds)
Circuit Trouble Trouble Yellow (Flashes 2 times every 4 seconds)

Selectable Self-Test Cycle

Self-Test Cycle
Every 1 hr
Every 12 hrs
Every 1 week
Off
*Selectable by a dedicated setting tool.
Default setting is 12 hrs.

NOT TO BE USED FOR INSTALLATION PURPOSES.

Nittan reserves the right to make changes at any time without notice in prices, colours, materials,
components, equipment, specifications and models and also to discontinue models. CR1D-EW-DAT-00 Rev.0
Page 3 of 5
■ Typical Wiring
Dedicated Control Panel
Fire Ｌ White
Common Ｃ Black
Zone 1 Trouble Ｋ Green
24 VDC+ I＋ Red
Test Ｔ Yellow
Brown
*1 Blue

Ｙ Ｘ Ｔ I＋ Ｋ Ｃ Ｌ
*2
CR1D-EW
Fire Ｌ
Common Ｃ
Zone 2 Trouble Ｋ
24 VDC+ I＋
Test Ｔ

*1

Dedicated fire alarm panel

Junction Ｙ Ｘ Ｔ I＋ Ｋ Ｃ Ｌ
1PV-FLD Series. Box *2
CR1D-EW

*1 Install a wire jumper between the terminals connected to Brown and Blue wires.
*2 The CR1D-EW has a built-in End-of-Line device (CRE) in its enclosure.
Thus, the number of connectable detector is one per each zone.

Typical Conventional Control Panel

1PM3, etc. LP06 CR1D-EW
L1 L (White)
K1 K (Green)
C C (Black)
Ln Lin I+ I+ (Red)
Zone n Cin
C (-) T T (Yellow)
Lout X1 X (Brown)
Cout Y1 Y (Blue)

Typical conventional
CR1D-EW
fire alarm control panels, L2 L (White)
such as 1PM3, 1PV0. K2 K (Green)
C (Black)
+ - I+ (Red)
T (Yellow)
To Next LP06
or EOL*1 X2 X (Brown)
Y2 Y (Blue)
+24V 24G

+24V GND
24 VDC External Power Supply
Isolated, Regulated and Power
limited

*1 A CRE End-of-Line Device must be installed at the last LP06 in the Ln and C circuit.

NFU-7000 Addressable Control Panel

EVA-ZMU-SCI LP06 CR1D-EW
L1 L (White)
From Panel K1 K (Green)
or Previous Device
C C (Black)
Loop A+ Lin I+ I+ (Red)
+ - A- Cin T T (Yellow)
Lout X1 X (Brown)
Lin+ Cout Y1 Y (Blue)
Lin-
Lout+ CR1D-EW
Lout- L2 L (White)
K2 K (Green)
C (Black)
+ - + - I+ (Red)
Loop T (Yellow)
To Next LP06
To Next Device or EOL*1 X2 X (Brown)
Y2 Y (Blue)
+24V 24G

+24V GND
UL listed 24 VDC Power Supply
Isolated, Regulated, Power limited,
Listed for Battery Backup

*1 A 10 kΩ End-of-Line Resister must be installed at the last LP06 in the A+ and A- circuit.

NOT TO BE USED FOR INSTALLATION PURPOSES.

Nittan reserves the right to make changes at any time without notice in prices, colours, materials,
components, equipment, specifications and models and also to discontinue models. CR1D-EW-DAT-00 Rev.0
Page 4 of 5
 ■ Example of Applications
Applications Solutions
Fire monitoring for the place where
Ironworks plant may become hot by motors
Fire monitoring for the large printing
Printing factory machine which uses organic solvent
Monitoring for waste which may fire
Waste incineration plant spontaneously in waste storage
(Correspond to high-ceiling place)
Monitoring for waste storage which
Chemical factory may fire spontaneously

■ Specifications
Specifications CR1D-EW-A03 CR1D-EW-A04 CR1D-EW-A05
Detection Response Time Normal Fast Fast
EOL Equipped Equipped Not epuipped
Explosion-proof class Ex db II CT6 Gb
Rated Voltage 24 VDC
Operating Voltage 19.2 VDC to 33.6 VDC

Rated Current L-C : 50 mA (Max.)

K-C : 50 mA (Max.)
I+ - C : 6 mA (standby), 40 mA (alarm)
Operating Current L-C : 10 μA and less
K-C : 10 μA and less

Sensitivity / Detection Range High : 60 m (default)

Middle : 30 m
(for 0.1 m2 n-Heptane pan fire) Low : 15 m
Field of View 100° (±50°)
Alarm : Red (steady)
Trouble : Yellow (steady or flashing)
LED Indicator Remote Test : Blue (flashing)
Startup : Green (flashing)
Normal : Off
Power supply voltage drops : Red (flashing)
0.5mm² Flexible copper 8 core cable
L(white), C(Black), K(Green), I+( Red), T(Yellow), X(Brown), Y(Blue)
0.75mm² Flexible copper 1 core cable
Accessory Cables G(Yellow / Green)
Length : 5m
Sheath Outer Diameter(mm) : 6.6mm
Conditions for detecting lens dirt Infrared transmittance lever: less than 50%
Operating Temperature -20°C to +60°C
Exclosure Rating IP66 (Dust-proof, Water-proof / IP67 (Dust-proof, Submersion-proof)
Body : Stainless steel
Material Window : Sapphire
Bracket : Stainless steel
Dimensions / Weight 120m(H) x 100m(W) x 179mm(D) / 2.7kg (with Mounting Bracket)

Connectable Fire Alarm Panel With LP-06 : 1PF, 1PK, 1PM, 1PN, 1PQ, 1PS, 1PV, etc.
With ZMU and LP-06 : NFU-7000, NFU-7000-L
MTE3-RD : Flame Detector Testing Device
Optional Accessory CRD-EW-14A : Sunshade for CR1D-EW
CRD-EW-14B : View angle restriction hood for CR1D-EW

Distributed By

All specifications are subject to change without any notice.

For more information, contact with NITTAN.
54-5, 1-chome, Sasazuka,
Shibuya-ku, Tokyo 151-8535, Japan
TEL: +81-3-5333-7021 FAX: +81-3-5333-8615

CR1D-EW-DAT-00 Rev.0 http://www.nittan.com

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