IR-11.1.ex Zone21 / IR-13.1.ex Zone21
IR spark detector
The infrared spark detectors IR-11.1.ex Zone21 (1-arm fiber optic cable) and IR-13.1.ex Zone21 (3-arm fiber optic cable), which are also available with CSA approval, detect sparks and flames in closed, potentially explosive systems. The maximum of their spectral sensitivity is around 830 nm. The devices are well suited for sparks and flames with temperatures > 800°C. They are designed for installation in parts of the system where it is completely dark and where no extraneous light is to be expected. Daylight contains infrared components that trigger the devices and can therefore cause false triggering.
IR-31.1ex and IR-33.1ex are used, for example, in electronic spark extinguishing systems with monitoring devices for the early detection of fires and explosions. They are also used wherever mechanically flammable or smoldering materials are transported or pneumatically transported and there is a risk of fire or explosion.
The detectors have relay outputs for faults and alarms and internal monitoring of the operating voltage.
IR-11.1.ex Zone21 / IR-13.1.ex Zone21 – data and facts
| Operating voltage |
18…30 VDC
|
| Operating current without fault relay |
< 250 µA
|
| Spectral sensitivity |
ca. 780…1100 nm
|
| maximum detection distance @spark temperature 800°C Line end resistance (activated via BR4= ON) |
200 mm
4,7 KΩ |
| Temperature range control unit |
-20… 70°C
|
| Temperature range fiber optic |
-20…+200°C
|
| Operating voltage |
18…30 VDC
|
| Operating current without fault relay |
< 250 µA
|
| Spectral sensitivity |
ca. 780…1100 nm
|
| maximum detection distance @spark temperature 800°C Line end resistance (activated via BR4= ON) |
200 mm
4,7 KΩ |
| Temperature range control unit |
-20… 70°C
|
| Temperature range fiber optic |
-20…+200°C
|
Options and special features
IR-11.1.ex Zone 21: 1-arm light guide, IR-13.1.ex Zone21: 3-arm light guide
ATEX certification for category 3G and 2D (control unit), Zone 2 / 21
- Related type examination certificate: TPS 16 ATEX 79487 001 X
TÜV AUSTRIA SERVICES GMBH, Deutschstrasse 10, A-1230 VIENNA, identification number: 0408 - Related DIN EN ISO 9001:2015 certificate: 12 100 34688 TMS
TÜV SÜD Management Service GmbH, Ridlerstrasse 57, D-80339 Munich
LWL standard and weld-on flange standard suitable for Zone 2/20
Optional: LWL-Ex and weld-on flange standard or LWL standard and Weld-on flanges-Ex suitable for zone 0/20
Relay outputs (potential-free changeover contacts – photo-MOS relays) for fault and alarm
Internal monitoring of the operating voltage, fault at Ub < 16.5VDC
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