Yokogawa 2-Wire Dual Channel Transmitter/Analyzer FLXA21 - Manual (Page 22)

<1. INTRODUCTION AND GENERAL DESCRIPTION>
1-10
IM 12A01A02-01E 5th Edition : Oct. 31, 2013-00
Type of protection
Class I, Division 1, Groups A, B, C and D (Intrinsically Safe)
Class I, Division 2, Groups A, B, C and D (Nonincendive)
Class I, Zone 0, in Hazardous (Classified) Locations (Intrinsically Safe)
Class I, Zone 2, Group IIC, in Hazardous (Classified) Locations (Nonincendive)
AEx ia IIC
For all protection type,
T4: for ambient temperature: -20 to 55°C
T6: for ambient temperature: -20 to 40°C
Atmosphere pressure: 80 kPa (0.8 bar) to 110 kPa (1.1 bar)
Degree of Protection of the Enclosure: NEMA Type 4X and IP66
CSA Intrinsically safe and nonincendive approval
Applicable standard
CAN/CSA C22.2 No. 94-M1991 Special Purpose Enclosures
CAN/CSA C22.2 No. 157-92 Intrinsically Safe Equipment for Use in Hazardous Locations
C22.2 No213-M1987 Non-incendive Electrical Equipment for Use in Class I, Division 2
Hazardous Locations
CAN/CSA-E60079-0-07 Electrical apparatus for explosive gas atmospheres
- Part 0: General requirements
CAN/CSA-E60079-11-02 Electrical apparatus for explosive gas atmospheres
- Part 11: Intrinsic safety “i”
IEC 60529:2001 Degrees of protection provided by enclosures (IP Code)
Type of protection (C22.2)
Class I, Division 1, Groups A, B, C and D (Intrinsically Safe)
Class I, Division 2, Groups A, B, C and D (Nonincendive)
For all protection type,
T4: for ambient temperature: -20 to 55°C
T6: for ambient temperature: -20 to 40°C
Atmosphere pressure: 80 kPa (0.8 bar) to 110 kPa (1.1 bar)
Ambient Humidity: 0 to 100% (No condensation)
Degree of Protection of the Enclosure: Type 4X
Type of protection (E60079)
Ex ia IIC
T4: for ambient temperature: -20 to 55°C
T6: for ambient temperature: -20 to 40°C
Atmosphere pressure: 80 kPa (0.8 bar) to 110 kPa (1.1 bar)
Ambient Humidity: 0 to 100% (No condensation)
Degree of Protection of the Enclosure: IP66
Electrical Parameters (Ex ia)
Each housing assembly (base module) and each sensor module are respectively certificated.
Input parameters of sensor module meet output parameters of housing assembly.
Housing assembly
Input parameters Supply and output circuit (terminals + and -):
Ui, Vmax = 30 V
Ii, Imax = 100 mA
Pi, Pmax = 0.75 W
Ci =13 nF
Li = 0 mH
(Linear source)
Output parameters Sensor module input circuit (CN2 or CN3 on Back board)
Uo Vt, Voc = 13.65 V
Io, It, Isc = 50 mA
Po = 0.372 W
Co, Ca = 80 nF
Lo, La = 7.7mH