Instruction Manual

<2. Handling Cautions>
2-7
IM 01C27H01-01EN
2.8.4 IECEx Certication
Caution for IECEx Intrinsically safe type.
Note 1. Model EJX Series pressure transmitters
with optional code /SS27 for potentially
explosive atmospheres:
• No. IECEx KEM 10.0074X
• 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
• Process Temperature (Tp.): 120°C max.
• Enclosure: IP66/IP67
Note 2. Installation
• Installation should be in accordance with
local installation requirements.
(Refer to the Control Drawing)
Amplifier housing code 7
Hazardous Area
[Control Drawing]
F0209.ai
Amplifier housing code 8 and 9
Hazardous Area
*1: These apparatus are simple apparatus.
*2: Arrester may not be connected.
Transmitter
Battery Pack
Transmitter
Battery Pack
Arrester
(*1, *2)
Antenna
(*1)
Antenna connector
Note 3. Maintenance and Repair
• The instrument modication or parts
replacement by other than authorized
representative of Yokogawa Electric
Corporation is prohibited and will void IECEx
Intrinsically safe Certication.
WARNING
The instrument modication or parts replacement
by other than an authorized Representative of
Yokogawa Electric Corporation is prohibited and
will void the certication.
Note 4. Battery Pack
• Use only YOKOGAWA battery pack
F9915MA or F9915NS.
Note 5. Special conditions for Safe Use
• In case the enclosure of the Pressure
Transmitter is made of aluminum, if it
is mounted in an area where the use of
apparatus of equipment protection level Ga
is required, it must be installed such, that,
even in the event of rare incidents, ignition
sources due to impact and friction sparks are
excluded.
• For applications in explosive atmospheres
caused by gases, vapors or mists and
mounted in an area where the use of
apparatus of equipment protection level Ga
is required, electrostatic charges on the non-
metallic parts of the Pressure Transmitter
shall be avoided.
WARNING
• Potential electrostatic charging hazard -
secure distance of 100mm from antenna.
• Take care not to generate mechanical
sparking when access to the instrument and
peripheral devices in a hazardous location.
2.9 EMC Conformity Standards
EN61326-1 Class A, Table 2 (For use in
industrial locations), EN61326-2-3
CAUTION
This instrument is a Class A product, and it is
designed for use in the industrial environment.
Please use this instrument in the industrial
environment only.
2.10 Pressure Equipment
Directive (PED)
(1) General
EJX Series pressure transmitters are
categorized as piping under the pressure
accessories section of directive 97/23/EC,
which corresponds to Article 3, Paragraph 3 of
PED, denoted as Sound Engineering Practice
(SEP).