Yokogawa MLX - Manual (Page 23)

Page 23 of 49
IM 60A02S01-01E-A
• Installation should be in accordance with Canadian Electrical Code Part I and
Local Electrical Code.
• Dust-tight conduit seal must be used when installed in Class II and III
environments.
• WARNING: SUBSTITUTION OF COMPONENTS MAY IMPAIR INTRINSIC
SAFETY.
ADVERTISSEMENT: LA SUBSTITUTION DE COMPOSANTS PEUT
COMPROMETTRE LA SECURITE INTRINSEQUE.
• WARNING: DO NOT OPEN COVERS WHEN AN EXPLOSIVE ATMOSPHERE
MAY BE PRESENT. INSTALL IN ACCORDANCE WITH THE INSTRUCTION
MANUAL.
ATTENTION: NE PAS OUVRIR Si des explosifs ATMOSPHERE
peuvent être présents. INSTALLER EN SELON LE MODE D'EMPLOI.
Note 5. Maintenance and Repair
• The instrument modification or parts replacement by other than authorized
representative of Yokogawa Electric Corporation is prohibited and will void Intrinsically
Safe Certification.
Note 6. Special Conditions for Safe Use
• In the case where the enclosure of the MLX is made of aluminum, it must be
installed such, that, even in the event of rare incidents, ignition sources due to impact and
friction sparks are excluded.
MLX Loop
Indicator
- +
+
2- Wire
Transmitter
-
+ +
Safety Barrier
- -
Non-Hazardous Area Hazardous Area
4-20mA
+
General
Purpose
Equipment
-
Group IIC, Zone 0 T4
Class I, II, III, Division1 & 2
Groups A - G
[Intrinsically safe]