Yokogawa 202 Field Mounting Rate Totalizer Manuale Utente Scaricare il pdf (Pagina 8)

Introduction

1.2 INTRINSIC SAFETY CONSIDERATIONS

The Model 202D is certified for use in hazardous areas and has both CENELEC

and CSA NRTL/C approvals.

The Model 202D certification details are:

CENELEC Approval: Kema 98.E.1873.

Type of Protection: Ex ia.

Group: IIB.

Temperature Class: T4 at ambient temperature of 60°C.

CSA NRTL/C Approval

File Number: LR 104 840-5.

Type: Class 1, Groups C and D.

When installing in hazardous areas, the instrument must be installed according to

the guidelines in Section 8 and in accordance with standards for wiring and

installation in hazardous areas.

4-20mA/DC Power

The input can be connected to IS circuits with the following maximum values:

Ui = 28V

Ii = 93mA

Pi = 653mW

The internal capacitance and inductance seen on these terminals is 0.1uF and

0mH.

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Yokogawa 202 Field Mounting Rate Totalizer Manuale Utente Pagina 8