Retevis RT56 Manuel D'instructions page 4

Safety and Explosion-proof
RT56 explosion-proof handheld transceiver meets GB3836.1-2010 "Explosive
environment Part 1: General requirements for equipment", GB 3 8 3 6 . 4 - 2 0 1 0
"Explosive environment Part 4: Equipment protected by intrinsically safe "i", GB12476.
1-2013 "Electrical equipment for flammable dust environment - Part 1: General
requirements", GB12476.4-2010 "Electrical equipment for flammable dust environment -
Part 4: Intrinsically safe "iD" standard, the explosion-proof mark is Ex ib IIB T4 Gb, which
has passed the inspection and certification of the national explosion-proof product quality
supervision and inspection center, and obtained the explosion-proof certificate, certificate
No. CNEx19.2543X. The product is suitable for use in zones 1 and 2 containing
II A-II B and T1-T4 explosive gas mixtures.
RT56 Eexplosion-proof handheld transceiver adopts a new optimized explosion-proof
design.The battery adopts dual output current Limiting protection and short circuit
protection.The whole structure Design is compact and reliable,with safe and reliable
explosion-proof performance, And is the ideal professional communication Transceiver in
hazardous gas working environment.
Level
Temp-er
ature
Methane,toluene,methy ester,
Ethane,propane,styrene,
Carbonmonoxide, ethylacetate,
T1(450℃)
Aceticacid,chlorobenzene, methyl
acetate,ammonla
Methanol, ethanol,ethylbenzene,
Propyl alcohol, propylene,
T2(300℃)
butanol,Butane, butyl acetate,Amyl
acetate, cyclopentane
Pentane, pentanol, hexane,Hexanol,
heptane, octane,Ethanol, turpentine,
Naphtha, petroleum (including steam
T3(200℃)
Oil),fuel oil,Pentanol
tetrachloromethane
T4(135℃)
T5(100℃)
T6(85℃)
II A
Acetaldehyde, trimethylamine
Ethyl nitrite
II B
Propylene,
Propylene Clear,
dimethyl ether,
Hydrogen cyanide,
City gas
Butadiene,ring
Ethoxyethane,
B Ene, furan
Dimethyl ether,
propylene Aldehyde,
hydrogen sulfide
Dibutyl ether, two
Ether, ethyl methyl,
Tetrafluoroethylene
3
II C
Hydrogen,
water gas
Acetylene
Carbon
disulfide
Ethyl nitrate