IM 01C21F01-01E
2-5
2. HANDLING CAUTIONS
Note 1. For the installation of this transmitter,
once a particular type of protection is
selected, any other type of protection
cannot be used. The installation must be
in accordance with the description about
the type of protection in this instruction
manual.
Note 2. In order to avoid confusion, unnecessary
marking is crossed out on the label other
than the selected type of protection when
the transmitter is installed.
2.9.2 CSA Certification
a. CSA Intrinsically Safe Type
Caution for CSA Intrinsically safe type. (Following
contents refer to “DOC No. ICS003-A12 P.1-1 and
P.1-2.”)
Note 1. Model EJA Series differential, gauge, and
absolute pressure transmitters with
optional code /CS1 are applicable for use
in hazardous locations
Certificate: 1053843
• Applicable Standard: C22.2 No.0, No.0.4, No.25,
No.30, No.94, No.142, No.157, No.213
• 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 Hazardous Locations.
• Nonincendive for Class I, Division 2, Groups A, B,
C & D, Class II, Division 2, Groups F & G, and
Class III, Hazardous Locations. (not use Safety
Barrier)
• Encl. “Type 4X”
• Temperature Class: T4
• Ambient temperature: –40 to 60
°
C
• Process Temperature: 120
°
C max.
Note 2. Entity Parameters
• Intrinsically safe ratings are as follows:
Maximum Input Voltage (Vmax) = 30 V
Maximum Input Current (Imax) = 165 mA
Maximum Input Power (Pmax) = 0.9 W
Maximum Internal Capacitance (Ci) = 22.5 nF
Maximum Internal Inductance (Li) = 730
μ
H
* Associated apparatus (CSA certified barriers)
Maximum output voltage (Voc)
)
30 V
Maximum output current (Isc)
)
165 mA
Maximum output power (Pmax)
)
0.9 W
Note 3. Installation
• All wiring shall comply with Canadian Electrical
Code Part I and Local Electrical Codes.
• The instrument modification or parts replacement
by other than authorized representative of
Yokogawa Electric Corporation and Yokogawa
Corporation of America is prohibited and will void
Canadian Standards Intrinsically safe and
nonincendive Certification.
Class I, II, III, Division 1,
Groups A, B, C, D, E, F, G
EJA Series Pressure
Transmitters
Safety Barrier
Supply
Hazardous Location
Nonhazardous Location
General
Purpose
Equipment
+
–
+
–
+
–
+
–
[Intrinsically Safe]
F0204-1.EPS
F0204-2.EPS
EJA Series Pressure
Transmitters
Supply
Hazardous Location
Nonhazardous Location
+
–
+
–
Class I, II, Division 2,
Groups A, B, C, D, E, F, G
Class III, Division 1.
Not Use
Safety Barrier
[Nonincendive]
General
Purpose
Equipment
b. CSA Explosionproof Type
Caution for CSA explosionproof type.
Note 1. Model EJA Series differential, gauge, and
absolute pressure transmitters with
optional code /CF1 are applicable for use
in hazardous locations:
Certificate: 1089598
• Applicable Standard: C22.2 No.0, No.0.4, No.25,
No.30, No.94, No.142
• Explosionproof for Class I, Division 1, Groups B,
C and D.
• Dust-ignitionproof for Class II/III, Division 1,
Groups E, F and G.
• Encl “Type 4X”
• Temperature Class: T6, T5, and T4
• Process Temperature: 85
°
C (T6), 100
°
C (T5), and
120
°
C (T4)
• Ambient Temperature: –40 to 80
°
C
• Supply Voltage: 42 V dc max.
• Output Signal: 4 to 20 mA
Note 2. Wiring
• All wiring shall comply with Canadian Electrical
Code Part I and Local Electrical Codes.
• In hazardous location, wiring shall be in conduit as
shown in the figure.
CAUTION: SEAL ALL CONDUITS
WITHIN 50 cm OF THE ENCLOSURE.
UN SCELLEMENT DOIT ÊTRE
INSTALLÉ À MOINS DE 50 cm DU
BÎTIER.
