Yokogawa MLX - Manual (Page 18)

Page 18 of 49
IM 60A02S01-01E-A
Note 4. Maintenance and Repair
• The instrument modification or parts replacement by other than authorized
representative of Yokogawa Corporation of America is prohibited and will void
Intrinsically Safe Certification.
Note 5. Special Conditions for Safe Use
• In the case where the enclosure of the MLX is made of aluminum, if it is mounted
in an area where the use of category 1 Ga or 1 Da apparatus is required, it must
be installed such, that, even in the event of rare incidents, ignition sources due to
impact and friction sparks are excluded.
2) Nameplate
• Nameplate for FM Explosionproof/Dust Ignition-proof type (Option /FF1)
ASSEMBLED IN USA WITH
FOREIGN AND DOMESTIC
PARTS
MLX
4 0 0 0 7 9 8
Explosionproof/Dust-Ignition-Proof for Class I, II, III; Groups A - G;
Divisions 1 & 2
Class I, Zone 1, Group IIC T4
Temp. Class: T4
Tamb.: -40°C to 80°C
Enclosure: NEMA 4X
WARNING
Conforms to: FM 3600,
FM 3615, UL 1203.
WARNING: DO NOT OPEN COVERS WHEN AN EXPLOSIVE
ATMOSPHERE MAY BE PRESENT. INSTALL IN
ACCORDANCE WITH THE INSTRUCTION MANUAL.
4-20mA DC
M1275BS
MLX Loop
Indicator
- +
+
2- Wire
Transmitter
-
+
[Ex ic] Certified
Equipment
(non-incendive)
Non-Hazardous Area Hazardous Area
4-20mA
Group IIC, Zone 2
[Non-incendive]