Yokogawa FVX110 Manual do Utilizador descarregar pdf (Página 17)

<2. Handling Cautions>

2-7

IM 01S01C01-01EN

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 oating 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

2.8.2 CSA Certication

a. CSA Explosionproof Type

Caution for CSA explosionproof type.

Note 1. FVX110 Fieldbus Segment Indicator with

optional code /CF1 is applicable for use in

hazardous locations:

Certicate: 2325751

• 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.213, C22.2 No.61010-01-04,

C22.2 No.60079-0, C22.2 No.60079-1

[For CSA C22.2]

• Explosion-proof for Class I, Groups B, C and

• Dustignition-proof for Class II/III, Groups E, F

and G.

• Enclosure: TYPE 4X

• Temperature Code: T6

[For CSA E60079]

• Flameproof for Zone 1, Ex d IIC T6

• Enclosure: IP66 and IP67

• Ambient Temperature: –50* to 75ºC (T6)

* –15ºC when O-ring material is Fluoro-rubber.

• Supply Voltage: 32 V dc max.

• Output Signal: 15 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 gure.

• 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 modication 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 Certication.

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