Spectron-804 Series Explosion-proof Flame Detector

Parameters of Ex-proof Detectors

Spectron-804-Exi - type of explosion protection is intrinsically safe electrical circuit. Explosion protection marking РО Ex ia I Ma X / 0Ex ia IIC T6 Ga X / Ex ia IIIC T85ºC Da X allows the detector to be used in hazardous areas of enclosed buildings and outdoor installations. Hazardous areas classes are Zones 0, 1 and 2.

An intrinsically safe circuit is required to connect an intrinsically safe detector.

The detector is connected to an explosion-proof control panel with an intrinsically safe output or to a general industrial control panel through an Intrinsic safety barrier. Manufacturer recommended IS barriers:

• Spectron-IB-01 – 12 V/500 mA, for conventional detectors with 4-wire connection;

Spectron-804-Exm’s type of explosion protection is encapsulation in a compound. Explosion protection marking PB Ex mb I Mb X / 1Ex mb IIC T6 Gb X / Ex mb IIIC T85ºC Db X allows the detector to be used in hazardous areas of enclosed buildings and outdoor installations. Hazardous areas classes are Zones 1 and 2.

An intrinsically safe circuit is not required to connect a detector with the encapsulated within a compound type of protection. Cables have to be laid considering the requirements of the PUE (section 7.3) for electrical wiring in hazardous areas.

General Parameters of General Purpose Industrial and Explosion-proof Detectors

Spectron-804 series detectors are extremely immune to strong optical noise. Manual arc and argon welding are detected as false alarms.

Recommended for use in fire alarm and fire extinguishing systems in enclosed buildings and outdoor installations.

• Housing of Spectron-804 and Spectron-804-Exm/Exi detectors is made of high-strength ABS plastic;
• Housing of Spectron-804-M and Spectron-804-Exm/Exi-M detectors is made of galvanized steel;
• Housing of Spectron-804-N and Spectron-804-Exm/Exi-N detectors is made of AISI 321 stainless steel.

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” in the name are configured using HART-USB "Spectron" interface converter. To download the software from our website click this link.

Detectors without “HART” in the name (with Modbus/RTU digital protocol) are configured using SB-RS-48 interface converter. To download the software from our website click this link.

The maximum flame detection range in accordance with GOST R 53325-2012 is 25 meters to TP5 and TP6.

For facilities with harsh operating conditions the detector is provided with sensitivity selection option - 4 operating modes with different range and time of flame detection.

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

Minimum 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 2 seconds

The automatic transition of the detector from the Alarm mode to the Normal mode is activated by switching on the "Flame source control" function in the detector's service menu.

• The operating temperature range of the detector in plastic housing is -55 to +75 ºС;
• The temperature range of the detector in metal housing is -55 to +85 ºС;

Spectron Flame Detector

804-Exi-M/N

804-Exm-M/N

804

Wiring

Self-testing function

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

Type of explosion protection

Exi

Exm

Surface-mounting boxes recommended by the manufacturer for connecting the detector

Spectron-MK-04-Exi

Explosion Proof Boxes

Ехе or Ехd

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.

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

Parameters

Value

Explosion protection marking

Spectron-804-Exi

Spectron-804-Exi-M/N

Spectron-804-Exm

Spectron-804-Exm-M/N

Spectron-804

Spectron-804-M/N

Housing material

Spectron-804

Spectron-804-Exi

Spectron-804-Exm

Spectron-804-M

Spectron-804-Exi-M

Spectron-804-Exm-M

Galvanized Steel

Spectron-804-N

Spectron-804-Exi-N

Spektron-804-Exm-N

Stainless steel

Immunity to one working 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

Detection range, m

TP5

TP6

25

25

4

30

Temperature range, ºС

–55 ÷ +75

Spectron-804-M/N

Spectron-804-Exi-M/N

Spectron-804-Exm-M/N

Environmental Standards in accordance with GOST 15150

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

Operating voltage, V

without "HART" suffix

with "HART" suffix

9 ÷ 26

18 ÷ 26

Detector recovery time, sec

2

Wiring

4-wire circuit

Self-testing function

Yes

Automatic transition from the Alarm mode to the Standby mode

Yes

“Near*/Far” sensitivity mode change function

Yes

4-20 mA analog output

Detector with HART protocol

Current loop with HART protocol

Detector with HART protocol

RS-485 output interface with Modbus/RTU protocol

Detector with Modbus protocol

Built-in Alarm and Fault relays

Yes

Relay Rated Power, V/mA

30/100

Dimensions, mm

Weight, no more than, kg

Spectron-801

Spectron-801-Exi

Spectron-801-Exm

Spectron-801-M/N

Spectron-801-Exi-M/N

Spectron-801-Exm-M/N