<2. Notes on Handling>
2-6
IM 01C50E01-01EN
Note 4. Battery Pack
Use only YOKOGAWA battery pack
F9915MA or F9915NS.
Note 5. Special Conditions for safe use
Potential electrostatic charging hazard-
secure distance of 100mm from antenna.
Do not open when CL II, III, DIV 1,2
atmosphere is present.
2.7.3 ATEX Certification
(1) Technical Data
Caution for ATEX Intrinsically safe type.
Note 1. Model YTA Series temperature transmitters
with optional code /KS27 for potentially
explosive atmospheres:
• No. KEMA 10ATEX0163 X
• Applicable Standard:
EN60079-0:2012+A11:2013
EN 60079-11:2012
• Type of Protection and Marking code:
Ex ia IIC T4 Ga
• Group: II
• Category: 1 G
• 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
• 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)
1
2
3
4
5
Temperature
Transmitter
Battery
pack
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
F0206.ai
[Control Drawing]
Note 4. Battery Pack
• Use only YOKOGAWA battery pack
F9915MA or F9915NS.
Note 5. Special conditions for Safe Use
• In case of the aluminum enclosure, if the
Transmitter is mounted in an area where the
use of category 1 G 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 category 1 G apparatus is required,
electrostatic charge on the non-metallic
parts of the Temerature Transmitter shall be
avoided
WARNING
Potential electrostatic charging hazard - secure
distance of 100mm from antenna.
(2) Operation
WARNING
Take care not to generate mechanical sparking
when access to the instrument and peripheral
devices in a hazardous location.
