Yokogawa Wireless Temperature Transmitter YTA510 - Manual (Page 16)

<2. Notes on Handling>
2-8
IM 01C50E01-01EN
2.7.4 IECEx Certification
Caution for IECEx Intrinsically safe type.
Note 1. Model YTA Series temperature transmitters
with optional code /SS27 for potentially
explosive atmospheres:
• No. IECEx KEM 10.0073X
• Applicable Standard:
IEC 60079-0: 2011, IEC 60079-11: 2011,
IEC 60079-26: 2006
• Type of Protection and Marking code:
Ex ia IIC T4 Ga
• Ambient Temperature: –50°C to 70°C
• Enclosure: IP66/IP67
Note 2. Output Parameters
• Sensor input circuit (Terminals 1 to 5 )
Uo: 6.6 V
Io: 66 mA
Po: 109 mW
Co: 22 μF
Lo: 8.1 mH
• For the sensor input circuitry, these entity
parameters must be taken into account when
installed.
• The above parameters apply when one of
the two conditions below is given:
- the total Li of the external circuit (excluding
the cable) is < 1% of the Lo value or
- the total Ci of the external circuit (excluding
the cable) is < 1% of the Co value.
• The above parameters are reduced to 50%
when both of the two conditions below are
given:
- the total Li of the external circuit (excluding
the cable) is ≥ 1% of the Lo value and
- the total Ci of the external circuit (excluding
the cable) is ≥ 1% of the Co value.
• The reduced capacitance of the external
circuit (including cable) shall not be greater
than 1μF for Group IIB and 600nF for Group
IIC.
Note 3. Installation
• Installation should be in accordance with
local installation requirements.
(Refer to the Control Drawing)
Temperature
Transmitter
Battery
pack
1
2
3
4
5
1
2
3
4
5 Temperature
Transmitter
Battery
pack
Temperature Sensor (*1)
Amplifier housing code 8 and 9
Hazardous area
Antenna
(*1)
Arrester
(*1, *2)
Temperature Sensor (*1)
(One or Two sensors)
*1: These apparatus are simple apparatus.
*2: Arrester may not be connected.
Antenna Connector
F0209.ai
[Control Drawing]
Amplifier housing code 7
Hazardous area
Note 4. Maintenance and Repair
WARNING
The instrument modification or parts replacement
by other than an authorized Representative of
Yokogawa Electric Corporation is prohibited and
will void IECEx Intrinsically safe Certification.
Note 5. Battery Pack
• Use only YOKOGAWA battery pack
F9915MA or F9915NS.
Note 6. Special conditions for Safe Use
• In case of the aluminum enclosure, if the
Transmitter is mounted in an area where the
use of EPL Ga apparatus is required, it must
be installed such, that, even in the event rare
incidents, ingition source due to impact and
friction sparks are excluded.
• For application in an area where the use of
EPL Ga apparatus is required, electrostatic
charge on the non-metallic parts of the
Temperature Transmitter shall be avoided.