UV/IR4 Flame Detector Spectron-901-Exd for Hazardous Industrial Facilities and Critical Infrastructure Facilities

Spectron-901-Exd series detectors detect manual arc and argon welding as false alarms

For use in fire alarm and fire extinguishing systems in hazardous area zones 1 and 2 of enclosed buildings and open installations, as well as in underground mines, mining plants and their above-ground facilities.

• Housing of Spectron-901-Exd detector with index A is made of aluminum alloy (AD31T5)
• Housing of Spectron-901-Exd detector with index N is made of stainless steel (AISI 321)
• Housing of Spectron-901-Exd detector with index M is made of galvanized steel (steel 10)

Flame detector in stainless steel housing is recommended for use in facilities exposed to acidic, alkaline and other chemically aggressive environments, sea water and salt fog.

Output interfaces:

• 4-20 mA current loop with HART protocol support

or

• RS-485 with Modbus/RTU protocol support

Photos from the analog video module are sent to the RS-485 interface located on the detector's circuit board and are transmitted to the receiving device via the Modbus RTU protocol at a rate of 1 photo per second. At the same time data is recorded and stored on the internal SD card.

The video stream from the IP video module is transmitted to the operator (to a dedicated server, video recorder, etc.) via the Ethernet protocol and is simultaneously stored on the internal SD card.

Flame detector in stainless steel housing is recommended for use in facilities exposed to acidic, alkaline and other chemically aggressive environments, sea water and salt fog.

Circuit board of the device is equipped with a 3-stage lightning and surge protector, which allows using it without additional equipment for overvoltage protection.

For configuring detector’s parameters, “Spectron” configurator program is used. The program allows:

• request the status of the detector;
• restart the detector;
• change additional settings of the detector parameters.

Detectors with HART protocol are configured using HART-USB "Spectron" interface converter. To download the software from our website click this link.

Detectors with Modbus/RTU digital protocol are configured using SB-RS-48 interface converter. To download the software from our website click this link.

For facilities with harsh operating conditions, the detector sensitivity can be changed. Detection range modes:

• "Far 60" - TP-5 - 60 meters, TP-6 ​​- 50 meters;
• "Far 35" - TP-5, TP-6 ​​- 35 meters;
• "Standard" (factory setting) - TP-5, TP-6 ​​- 25 meters;
• "Near" - TP-5, TP-6 ​​- 17 meters.

The detector heater ensures full operation of the device at an ambient temperature of -70 to +90ºС. With the heating function disabled the operating temperature range is -55 to +90ºС. The detector remains operational with a short-term increase in temperature up to +135ºС.

The field of view of Spectron-901-Exd series is 90º in the vertical, horizontal and all inclined planes.

The flame detection range (in accordance with GOST R 53325-2012) 60 meters to TP5, 50 meters to TP6

Minimal response time, seconds

The transition of the detector from the Alarm mode to the Normal mode is carried out by disconnecting the power supply for at least 8 seconds

Spectron-901-Exd Flame Detector

A-HART

М-HART

N-HART

Wiring

Self-testing

Ingress Protection
in accordance with GOST 14254

Type of explosion protection

Exd

Exd

Exd

The warranty period of is 18 months from the date of commissioning, but not more than 24 months from the date of manufacturing.

Flame detectors work with explosion-proof test emitters:

• IT-12-Exd (black) – a test emitter for remote verification of the detector's performance;
• IT-12-Exd (red) – tuning emitter for remote change of detector parameters.

The range of emitters is 25 meters.

Parameters

Value

Explosion protection marking

Spectron-901-Exd-A

1Ex db IIC T6...T4 Gb X / Ex tb IIIC T85ºC...T135ºC Db X

Housing material

Spectron-901-Exd-A

Aluminum alloy

Spectron-901-Exd-M

Galvanized steel

Spectron-901-Exd-N

Stainless steel

Immunity to one working electric arc welding station at a distance, m

4

Immunity to one working argon welding station at a distance, m

4

Immunity to direct light of an incandescent lamp, lx

150000

Immunity to direct light of a fluorescent lamp, lx

150000

Field of view, degrees

90

Minimal response time, seconds

5, 10*, 15, 25

Detection range, m

TP5

TP6

60

50

20/270

50 /300

Temperature range, ºС

Without heater

With heater

–55 ÷ +90

–70 ÷ +90

(short-term up to +135)

Environmental Standards in accordance with GOST 15150

Ingress Protection by the housing in accordance with GOST 14254, not less

Operating voltage, V

18 ÷ 26

Detector recovery time, sec

8

Wiring

4-wire circuit

Self-testing

Yes

Automatic transition from the Alarm mode to the Standby mode

Yes

Selectable sensitivity ranges

Yes

Window Dust Control (WDC)

Built-in Alarm and Fault relays

Yes

Relay Rated Power, V/mA

30/100

Amount of cable inlets (cable glands not included)

2

Dimensions, mm

255х140х350

Weight, no more than, kg

4

Video module

IP

82° horizontal

45° vertical

87° horizontal

47° vertical