Spectron-804-Exd Series Ex-proof Flame Detector

Spectron-804-Exd series detectors detect manual arc and argon welding as false alarms.

Used 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-804-Exd detector with index "A" is made of aluminum alloy (AD31T5);
• Housing of Spectron-804-Exd detector with index "H" is made of stainless steel (AISI 321);
• Housing of Spectron-804-Exd detector with index "M" is made of galvanized steel (steel 10).

Output interfaces for information exchange:

• 4-20 mA current loop with HART protocol support;

or

• RS-485 with Modbus/RTU protocol support.

Spectron-804 detector can be equipped with a video module:

• index "V" - analog camera;
• index "V-IP" - digital camera.

The video module is designed to record alarm events. The video module is manufactured in a separate housing, mounted on one common bracket and located on the same axis as the flame detector. Power is supplied to the video module from the detector via an armored cable. A separate power supply board is installed in the detector for the operation of the video module.

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.

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 +90 ºС. With the heating function disabled the operating temperature range is -55 to +90 ºС. The detector remains operational with a short-term increase in temperature up to +135 ºС.

The field of view of Spectron-804-Exd series is 90º in the vertical, horizontal and all inclined planes.

The flame detection range (in compliance 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-804-Exd Flame Detector

A-HART

M-HART

N-HART

Wiring

Self-test

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

Type of explosion protection

Exd

Exd

Exd

ATTENTION. The model of cable glands must be specified when adding to the specification and ordering the equipment. Cable glands are not included in the price of the equipment. Full information on cable glands is available on the CABLE GLAND page of our website . If you have any questions about the correct selection of the type of cable gland, you can contact the technical support service by phone.

Specialized program Spectron-OPS-AutoCAD for easier designing

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

Test emitters are offered for checking the functionality and setting :

• 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.

Spectron-804-Exd series flame detector is listed in the MTR “Gazprom” OJSC Stock item identification guide.

Parameters

Value

Explosion protection marking

Spectron-804-Exd-A

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

Housing material

Spectron-804-Exd-A

Aluminum alloy

Spectron-804-Exd-M

Galvanized steel

Spectron-804-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

23/285

45 /305

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