IM 1E10D0-01E
6-1
6. EXPLOSION PROTECTED TYPE INSTRUMENT
6.
EXPLOSION PROTECTED TYPE
INSTRUMENT
In this section, further requirements and differences for
explosion proof type instrument are described. For
explosion proof type instrument, the description in this
chapter is prior to other description in this User's
Manual.
NOTE
The terminal box cover and display cover is
locked by special screw. In case of opening the
cover, please use the Hexagonal Wrench
attached.
CAUTION
Be sure to lock the cover with the special screw
using the Hexagonal Wrench attached after
tightening the cover.
6.1 CENELEC
ATEX(KEMA)
WARNING
Only trained persons use this instrument in
industrial locations.
(1) Technical Data
No. KEMA 98ATEX3230
Type of Protection : EEx dm[ia]IIC T6...T3 Group
II Category 2 G
Electrode Circuit Um : 250V ac/dc
Excitation Circuit : 41Vmax. 6/6.25Hz
Temp. Class
T6
T5
T4
T3
Process Temp
70
85
120
150
°
C
Enclosure : IP67
(2) Electrical Connection
The type of electrical connection is stamped near the
electrical connection port according to the following
codes.
Screw Size Marking
ISO M20x1.5 female M
ANSI 1/2NPT female A
DIN Pg13.5 female D
(3) Installation
WARNING
• All wiring shall comply with local installation
requirements and local electrical code.
• In hazadous locations, the cable entry devices
shall be of a certified flameproof type, suitable
for the conditions of use and correctly installed.
• Unused apertures shall be closed with suitable
flameproof certified blanking elements. (The
plug attached is flameproof certified.)
(4) Operation
WARNING
• Wait 10min. after power is turned off, before
opening the covers.
• Take care not to generate mechanical spark
when access to the instrument and peripheral
devices in hazardous locations.
(5) Maintenance and Repair
WARNING
The instrument modification or parts replacement
by other than authorized representative of
Yokogawa Electric Corporation is prohibited and
will void the certification.
(6) Data Plate
SIZE
METER FACTOR
ELECTRODE
FLUID PRESS
FLUID TEMP.
Tamb
NO.
MAGNETIC FIOW TUBE
MODEL
mm
SUFFIX
STYLE
ENCLOSURE
LINING
IP67
PFA
TAG NO.
IM : User’s Manual
Made in
*3)
*2)
II
2G
KEMA No.: KEMA 98ATEX3230
EEx dm[ia] II C T6...T3
ELECTRODE CIRCUIT Um: 250Vac/dc
DE-ENERGIZE BEFORE OPENING
SEE THE NOTE AT BELOW
AND SEE IM
WARNING
TEMP. CLASS
T6
T5
T4
T3
MAX.PROCESS TEMP. +70 +85 +120 +150
°
C
ENCLOSURE: IP67
0038
– 0.1 MPa MIN. (SEE IM)
– 40
°
C MIN.(
)
– 20 to + 60
°
C SEE IM
*1)
N200
MODEL : Specified model code
SUFFIX : Suffix codes of the model code
STYLE : Specified style code
