The MHG 585 Flame Detector is intended for the automatic fire alarm signalling of rising fires for the powder painting booths as detector responsive to radiation of flames.
The Detector MHG 586 is intended especially for atmosphere with a risk of explosion and fire of dust namely in connection with the Evaluation Unit MHY 441. The detector is connected to the line of Evaluation Unit MHY 441 by means of the MHY 703 Mounting Base.
The detector may work in zone 22 of a space with conductive dust and zone 21 of a space with combustible dust according to ČSN EN 61241-14.
The detector is certified for fire signalling for powder painting booths according to law No. 22/1997 Sb., in wording law No. 71/2000 Sb. in FTZÚ Ostrava – Radvanice NB 1026 (explosive
environment). Certification details are at the manufacturer.
| Technical specifications | |
| Supply voltage | (20 ÷ 24) Vss |
| Rated supply voltage | 22 Vss |
| Quiescent current | max. 250 µA |
| Current at fire alarm max. 20 | max. 20 mA |
| Response time | max. 160 ms |
| Optical signalling in the detector | red LED |
| Parallel signalling | type LITES |
| Period of detector blocking after connection to power supply | 100 s |
| Vision angle | 90° (50° according to EN 54-10) |
| Detector sensitivity wavelength | 4,3 µm |
| Construction according to ČSN EN 61241-14 | Ex II 2D Ex tD A21 T85°C IP 65 |
| Testing procedure | By the Test Bar MHY 533 |
| Protection according to ČSN EN 60529 | IP 65 |
| Radio screening degree according to ČSN EN 55 022 | B-class equipment |
| Dimensions | (Ø147 × 45) mm |
| Weight | cca 650 g |
| Safety requirements | Product is intended for operation with safe equipment in sense of ČSN EN 60950 |
| Working conditions | |
| The MHG 586 Flame Detector is intended for the interior of objects without occurrence of aggressive substances, and for places where its protection and climatic immunity conform, and where sudden temperature changes leading to dew and ice accretion don’t occur. | |
| Working temperature range | +5°C ÷ +40 °C |
| Relative humidity | permanent < 85 % |
| Atmospheric pressure | (86 ÷ 106) kPa |
| Working position | On the vertical wall of the powder painting booth without vibrations |
| Note: | Detector can work in arbitrary position |
| Signalling of dismounting from base | FAULT condition on the Evaluation Unit MHY 441 |
