<2. Handling Cautions>
2-5
IM 01C27B01-01EN
2.8.1 FM Approval
Caution for FM intrinsically safe type. (Following
contents refer “DOC. No. IFM037-A20”)
Note 1. Model EJX Series Differential, gauge
and absolute pressure transmitters with
optional code /FS17 are applicable for use
in hazardous locations.
• Applicable Standard: Class 3600:2011,
Class 3610:2015, Class 3611:2016,
Class 3810:2005, ANSI/UL-60079-0-2013,
ANSI/UL-60079-11-2014, NEMA-250:2003
• Intrinsically Safe for Class I, Division 1,
Groups A, B, C & D, Class II, Division 1,
Groups E, F & G and Class III, Division 1,
Class I, Zone 0, in Hazardous Locations, AEx
ia IIC
• Nonincendive for Class I, Division 2, Groups
A, B, C & D, Class II, Division 2, Groups F &
G and Class III, Division 1, Class I, Zone 2,
Groups IIC, in Hazardous Locations.
• Enclosure: Type 4X
• Temperature Class: T4
• Ambient temperature: -50 to 70°C
Note 2. Installation
• Installation should be in accordance with
ANSI/ISA-RP12.06.01 and the National
Electric Code (NFPA 70).
• Dust-tight conduit seal must be used when
installed in a Class II, III, Group E, F and G
environments.
• Note a warning label worded
“SUBSTITUTION OF COMPONENTS MAY
IMPAIR INTRINSIC SAFETY,” and “INSTALL
IN ACCORDANCE WITH DOC. NO.
IFM037-A20”.
Model: EJX-L Series
Date: March 8, 2010
Rev.1: May 21, 2010
Doc. No.:
IFM037-A20 P.1
Rev.2: October 16, 2012
Rev.3: April 24, 2014
Rev.4: July 11, 2016
Yokogawa Electric Corporation
9.0 Control Drawing
Specific conditions of use:
- In case of the enclosure of the Pressure Transmitter is made of aluminum, if it is
mounted in Zone 0, it must be installed such, that, even in the event of rare
incidents, ignition sources due to impact and friction sparks are excluded.
- Electrostatic charges on the non-metallic parts (excluding glass parts) or coated
parts of the Pressure Transmitter shall be avoided.
Model: EJX-L Series
Date: March 8, 2010
Rev.1: May 21, 2010
Doc. No.:
IFM037-A20 P.1
Rev.2: October 16, 2012
Rev.3: April 24, 2014
Rev.4: July 11, 2016
Yokogawa Electric Corporation
Notes:
1. No revision to this drawing without prior approval of FM.
2. Installation must be in accordance with the National Electric Code (NFPA 70),
ANSI/ISA-RP12.06.01 and relevant local codes.
3. Antenna and Arrester are simple apparatus.
3.1 The following conditions must be met.
(total Li of simple apparatus) + (total Lcable)
≤ 1 mH
(total Ci of simple apparatus) + (total Ccable) ≤ 1 μF
3.2 The temperature class of Antenna and Arrester must be determined from Po = 20
mW at Antenna Connector, in accordance with Article 504 of NFPA 70.
3.3 Arrester may not be connected.
3.4 The connection diagram is for the transmitter with an external an antenna
connection. The transmitter with an integral antenna has no external connection as
shown in the diagram.
4. WARNING –
POTENTIAL ELECTROSTATIC CHARGING HAZARD
– SECURE
DISTANCE OF 100MM FROM ANTENNA
5. WARNING –
IN THE CASE WHERE THE ENCLOSURE OF THE
PRESSURE
TRANSMITTER IS MADE OF ALUMINUM, IF IT IS MOUNTED IN ZONE 0, IT
MUST BE INSTALLED
SUCH
,
THAT
EVEN
IN THE
EVENT OF RARE NCIDENTS,
IGNITION SOURCES DUE TO IMPACT AND FRICTION SPARKS ARE EXCLUDED
6. WARNING –
DO NOT OPEN WHEN CL II, III, DIV 1, 2 ATMOSPHERE IS
PRESENT
7. WARNING – USE ONLY BATTERY PACK YOKOGAWA F9915MA OR F9915NS
8. WARNING –
THE BATTERY PACK
CAN
BE REPLACED IN A HAZARDOUS
LOCATION. THE BATTERY PACK HAS SURFACE RESISTIVITY GREATER THAN
1G OHM AND MUST BE PROPERLY INSTALLED IN THE ENCLOSURE OF THE
TRANSMITTER. CARE MUST BE TAKEN DURING TRANSPORTATION TO AND
FROM THE POINT OF INSTALLATION TO PREVENT ELECTROSTATIC CHARGE
BUILD-UP
9. WARNING – SUBSTITUTION OF COMPONENTS MAY IMPAIR INTRINSIC
SAFETY
Only Electrical connection code: J is applicable.
