Yokogawa EJX930A - Manual (Page 16)

<2. Handling Cautions>
2-5
IM 01C25R03-01E
Cable
The cable used to interconnect the devices needs
to comply with the following parameters:
Loop resistance R': 15...150 Ω/km
Inductance per unit length L': 0.4...1 mH/km
Capacitance per unit length C': 45....200 nF/km
C' =C' line/line+0.5 C' line/screen, if both lines
are floating or C' = C' line/line + C' line/screen, if
the screen is connected to one line.
Length of spur cable: max. 60 m
Length of trunk cable: max. 1 km (Group IIC) or
5 km (Group IIB)
Length of splice: max = 1 m
Terminators
At the end of each trunk cable an FM Approved line
terminator with the following parameters is suitable:
R= 90...100 Ω
C = 0 ....2.2 mF
2.1.2 CSA Certification
a. CSA Explosionproof Type
Caution for CSA explosionproof type.
Note 1. EJX multivariable transmitter with
optional code /CF1 is applicable for use in
hazardous locations:
Certificate: 2014354
• Applicable Standard:
C22.2 No.0, C22.2 No.0.4, C22.2 No.0.5,
C22.2 No.25, C22.2 No.30, C22.2 No.94,
C22.2 No.61010.1-01, C22.2 No.60079-0,
C22.2 No.60079-1
[For CSA C22.2]
• Explosion-proof for Class I, Groups B, C and
D.
• Dustignition-proof for Class II/III, Groups E, F
and G.
• Enclosure: TYPE 4X
• Temperature Code: T6...T4
[For CSA E60079]
• Flameproof for Zone 1, Ex d IIC T6...T4
• Enclosure: IP66 and IP67
• Maximum Process Temperature: 120ºC (T4),
100ºC (T5), 85ºC (T6)
• Ambient Temperature: –50* to 75ºC (T4),
–50* to 80ºC (T5), –50* to 72ºC (T6)
* –15ºC when /HE is specified.
• Supply Voltage: 32 V dc max.
• Output Signal: 15 mA dc
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.
• WARNING:
A SEAL SHALL BE INSTALLED WITHIN
50cm OF THE ENCLOSURE.
UN SCELLEMENT DOIT ÊTRE INSTALLÉÀ
MOINS DE 50cm DU BOîTIER.
• WARNING:
WHEN INSTALLED IN CL.I, DIV 2, SEAL
NOT REQUIRED.
UNE FOIS INSTALLÉ DANS CL I, DIV 2,
AUCUN JOINT N'EST REQUIS.
Note 3. Operation
• WARNING:
AFTER DE-ENERGIZING, DELAY 5
MINUTES BEFORE OPENING.
APRÉS POWER-OFF, ATTENDRE 5
MINUTES AVANT D'OUVRIR.
• WARNING:
WHEN AMBIENT TEMPERATURE ≥ 65ºC,
USE THE HEAT-RESISTING CABLES ≥
90ºC.
QUAND LA TEMPÉRATURE AMBIANTE
≥ 65ºC, UTILISEZ DES CÂBLES
RÉSISTANTES Á LA CHALEUR ≥ 90ºC.
• Take care not to generate mechanical
sparking when accessing to the instrument
and peripheral devices in a hazardous
location.
Note 4. Maintenance and Repair
• 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 Explosionproof Certification.