<2. Notes on Handling>
2-19
IM 01C50G01-01EN
Control Drawing IECEx Ex ic
Yokogawa Electric Corporation
Model
Title
Control Drawing
No.
Page
Revision
Date
Intrinsically Safe Installation for YTAxxx – F or – G (Ex ic)
Model YTAxxx – F or – G
Supply/Output:
Ui = 32 V
Ci = 2.2 nF
Li = 0 mH
FISCO field device
+
Model YTAxxx – F or – G
Temperature Transmitter
Associated Apparatus
−
+
−
+
−
1
2
3
4
5
Sensor Input:
Uo = 6.0 V
Io = 90 mA
Po = 135 mW
Co = 10 μF
Lo = 3.9 mH
Supply/OutputSensor Input
Hazardous Area Non-Hazardous Area
TerminatorTerminator
Field DeviceField Device
Intrinsically Safe Apparatus
or
Simple Apparatus
Hazardous Area
Specific Condition of Use:
–
Electrostatic charges on the non-metallic parts (excluding glass parts) or coated parts of
the Temperature Transmitter shall be avoided.
– The dielectric strength of 500 V r.m.s. between the intrinsically safe circuit and the enclosure of the
Temperature Transmitter is limited, only by the removable surge absorber F9220AR.
WARNING –WHEN THE AMBIENT TEMP. ≥68°C, USE HEAT-RESISTING CABLES AND
CABLE GLANDS ≥75°C
WARNING –ELECTROSTATIC CHARGE MAY CAUSE AN EXPLOSION HAZARD.
AVOID ANY ACTIONS THAT CAUSE THE GENERATION OF ELECTROSTATIC CHARGE, SUCH AS
RUBBING WITH A DRY CLOTH ON COATING FACE OF THE PRODUCT.
Notes:
– The surge absorber F9220AR can be removed from, or added to the equipment.
– The equipment must be installed so that pollution degree 2 in accordance with IEC 60664-1 is
maintained inside the enclosure.
– Cable glands, adapters and/or blanking elements shall be of Ex “n”, Ex “e” or Ex “d” and shall be
installed so as to maintain the specified degree of protection (IP Code) according to the environmental
conditions. IP must be at least IP54.
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