Yokogawa MLX - Manual (Page 15)

Page 15 of 49
IM 60A02S01-01E-A
2.6.2 CENELEC ATEX Certification
1) Technical Data
a. CENELEC ATEX Intrinsically Safe/CENELEC ATEX Flameproof/
CENELEC ATEX Non-Incendive Type
Caution for CENELEC ATEX Intrinsically Safe/CENELEC ATEX Flameproof/ CENELEC
ATEX Non-Incendive Type.
Note 1. Model MLX Loop Process Indicators with optional code /KU21 applicable for use
in potentially hazardous locations:
• Certificate No. ITS13ATEX27856X
• Certificate No. ITS13ATEX17857
• Certificate No. ITS13ATEX47858
• Applicable Standard: EN 60079-0:2009, EN 60079-11:2007, EN 60079-26:2007
• Type of Protection and Marking code:
II 1G Ex ia IIC T4 Ga
II 2G Ex d IIC T4 Gb
II 2D Ex tb IIC T135 Db
II 3G Ex nA IIC T4 Gc
• Tamb. –40°C to 80°C
• Enclosure rating: IP66 and IP67
Note 2. Electrical Data
• In the case where the type of explosion protection is intrinsically safe, Ex ia IIC
T4 Ga, only connect to a certified intrinsically safe circuit with the following maximum
values:
Ui = 24 V
Ii = 150mA
Pi = 0.65 W
Effective internal capacitance; Ci = 0
Effective internal inductance; Li = 0
Note 3. Wiring
• For an ambient temperature ≥70°C, heat resistant cables shall be used with a
rating of at least 20°C above the ambient temperature.
• All wiring shall comply with local installation requirements. (Refer to the
installation diagram)
Note 4. Installation
• Observe WARNING on nameplate. (Refer to the installation diagram)
WARNING: AFTER DE-ENERGIZING, DELAY 5 MIN BEFORE OPENING
COVER.