Yokogawa EJX115A - Manual (Page 9)

<2. Handling Cautions>
7
IM 01C25A01-01E
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.
2.4.1 FM Approval
a. FM Intrinsically Safe Type
Caution for FM intrinsically safe type. (Following
contents refer “DOC. No. IFM022-A12”)
Note 1. Model EJX/EJA-E Series Differential, gauge
and absolute pressure transmitters with optional
code /FS1 are applicable for use in hazardous
locations.
• Applicable Standard: FM3600, FM3610, FM3611,
FM3810
• Intrinsically Safe for Class I, Division 1, Groups A,
B, C & D. Class II, Division 1, Groups E, F & G and
Class III, Division 1, Class I, Zone 0 in Hazardous
Locations, AEx ia IIC
• Nonincendive for Class I, Division 2, Groups
A, B, C & D. Class II, Division 2, Groups F & G
and Class I, Zone 2, Groups IIC, in Hazardous
Locations.
• Outdoor hazardous locations: NEMA TYPE 4X
• Temperature Class: T4
• Ambient temperature: –60 to 60°C
Note 2. Entity Parameters
• Intrinsically Safe Apparatus Parameters
[Groups A, B, C, D, E, F and G]
Vmax = 30 V Ci = 6 nF
Imax = 200 mA Li = 0 µH
Pmax = 1 W
* Associated Apparatus Parameters
(FM approved barriers)
Voc ≤ 30 V Ca > 6 nF
Isc ≤ 200 mA La > 0 µH
Pmax ≤ 1W
• Intrinsically Safe Apparatus Parameters
[Groups C, D, E, F and G]
Vmax = 30 V Ci = 6 nF
Imax = 225 mA Li = 0 µH
Pmax = 1 W
* Associated Apparatus Parameters
(FM approved barriers)
Voc ≤ 30 V Ca > 6 nF
Isc ≤ 225 mA La > 0 µH
Pmax ≤ 1 W
• Entity Installation Requirements
Vmax ≥ Voc or Uo or Vt, Imax ≥ Isc or Io or It,
Pmax (or Po) ≤ Pi, Ca or Co ≥ Ci + Ccable,
La or Lo ≥ Li + Lcable
Note 3. Installation
• Barrier must be installed in an enclosure that
meets the requirements of ANSI/ISA S82.01.
• Control equipment connected to barrier must not
use or generate more than 250 V rms or V dc.
• Installation should be in accordance with ANSI/ISA
RP12.6 “Installation of Intrinsically Safe Systems
for Hazardous (Classified) Locations” and the
National Electric Code (ANSI/NFPA 70).
• The configuration of associated apparatus must be
FMRC Approved.
• Dust-tight conduit seal must be used when
installed in a Class II, III, Group E, F and G
environments.
• Associated apparatus manufacturer’s installation
drawing must be followed when installing this
apparatus.
• The maximum power delivered from the barrier
must not exceed 1 W.
• Note a warning label worded “SUBSTITUTION
OF COMPONENTS MAY IMPAIR INTRINSIC
SAFETY,” and “INSTALL IN ACCORDANCE WITH
DOC. No. IFM022-A12”
Note 4. 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.
F0204.ai
Class I, II, III, Division 1,
Groups A, B, C, D, E, F, G
Class 1, Zone 0 in
Hazardous (Classified)
Locations AEx ia IIC
Pressure Transmitters
Safety Barrier
Supply
Hazardous Location Nonhazardous Location
General
Purpose
Equipment
+
– +
– +
– +
–
[Intrinsically Safe]
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