<14. EXPLOSION PROTECTED TYPE INSTRUMENT>
14-4
IM 01E30D01-01EN
(3) Operation
WARNING
• “OPEN CIRCUIT BEFORE REMOVING
COVERS.”
• “SEALS ALL CONDUITS WITHIN 18
INCHES” in hazardous locations.
• When installed in Division 2, “SEALS NOT
REQUIRED”
• Take care not to generate mechanical
spark when access to the instrument and
peripheral devices in hazardous locations.
(4) Maintenance and Repair
WARNING
The instrument modification or parts replacement
by other than authorized representative of
Yokogawa Electric Corporation is prohibited
and will void the approval of Factory Mutual
Research Corporation.
Non-hazardous
Location
Equipment
HAZARDOUS LOCATIONS DIVISION 1
18" (457mm) Max.
Sealing Fitting
Conduit
F1403.ai
Magnetic Flowmeter
NON-HAZARDOUS
LOCATIONS
35V DC Max.
4-20 mA DC
Signal
Figure 14.2 Conduit Wiring
14.3 CSA
(1) Technical Data
Certificate: 2136807
For Division system of area classification
Applicable Standard:
CAN/CSA-C22.2 No.0-M91,
CAN/CSA-C22.2 No.0.4-04,
C22.2 No.0.5-1982, C22.2 No.25-1966,
C22.2 No.30-M1986,
CAN/CSA-C22.2 No.94-M91,
CAN/CSA-C22.2 No.157-92,
CAN/CSA-C22.2 No.61010-1-04
Type of Protection:
Class I, Groups A, B, C and D;
Class II, Groups E, F and G; Class III
With Intrinsically Safe Electrodes for Class I,
Groups A, B, C and D
Specification of Protection :
Electrode Circuit Um: 250 V
Power Supply/Current Output: 42Vdc max./
4 to 20mA
Digital Output:
On: 2Vdc, 120mA max.
Off: 30Vdc max., 4mA
Excitation Circuit: 29V max.
Enclosure: Type 4X
Process Temperature:
Temperature
Code
Maximum Process
Temperature
Minimum Process
Temperature
T6
+70°C (+158°F)
-40°C (-40°F)
T5
+85°C (+185°F)
-40°C (-40°F)
T4
+130°C (+266°F)
-40°C (-40°F)
Ambient Temperature: -40 to +55
°C
(-40°F to
+131°F)
For Zone system of area classification
Applicable Standard:
CAN/CSA-C22.2 No.60079-0:07,
CAN/CSA-E60079-1:02,
CAN/CSA-E60079-7:03,
CAN/CSA-E60079-11:02,
CAN/CSA-E61241-1-1:02,
CAN/CSA-C22.2 No.61010-1-04
Type of Gas Atmosphere Protection
Type of Protection:
Ex d e [ia] IIC T6…T4
with Intrinsically Safe Electrodes for Zone 0,
Ex ia IIC T6…T4