<2. Handling Cautions>
2-4
IM 01C25F01-01E
WARNING
Maintaining the safety of explosionproof
equipment requires great care during mounting,
wiring, and piping. Safety requirements also
place restrictions on maintenance and repair.
Please read the following sections very carefully.
WARNING
The range setting switch must not be used in a
hazardous area.
IMPORTANT
For combined approval types
Once a device of multiple approval type is
installed, it should not be re-installed using any
other approval types. Apply a permanent mark
in the check box of the selected approval type
on the certification label on the transmitter to
distinguish it from unused approval types.
IMPORTANT
All the blind plugs which accompany the EJX/
EJA-E transmitters upon shipment from the
factory are certified by the applicable agency
in combination with the transmitters. The plugs
which are marked with the symbols “◊ Ex” on
their surfaces are certified only in combination
with the EJX/EJA-E series transmitters.
2.9.1 FM Approval
a. FM Intrinsically Safe/Nonincendive for
HART/BRAIN Protocol Type
Note 1. EJX/EJA-E Series pressure transmitters
with optional code /FS1 are applicable for
use in hazardous locations.
• Applicable Standard:
Class 3600:2011, Class 3610:2010,
Class 3611:2004, Class 3810:2005
ANSI/ISA-60079-0:2009,
ANSI/ISA-60079-11:2009
NEMA 250:1991
• Rating
Intrinsically Safe for
Class I, II, III Division 1,
Groups A, B, C, D, E, F, G T4
Class I Zone 0 AEx ia IIC T4
Nonincendive for
Class I, II, III Division 2
Groups A, B, C, D, F, G T4
Class I, Zone 2 Group IIC T4
• Ambient temperature: –60 to 60°C
• Enclosure: Type 4X
Note 2. Installation
Installation should be in accordance with
Control Drawing IFM022-A12.
Note 3. Maintenance and Repair
• The instrument modification or parts
replacement by other than authorized
representative of Yokogawa Electric
Corporation is prohibited and will void
Factory Mutual Intrinsically safe and
Nonincendive Approval.
