Yokogawa EJX530B - Manual (Page 12)

<2. Handling Cautions>
2-4
IM 01C27F01-01EN
NOTE
When storing the instrument with a battery
pack, it is recommended to put the instrument in
Deep Sleep mode to conserve the batteries. For
details on how to switch to Deep Sleep mode,
refer to subsection 8.3.12 “Switching to Deep
Sleep Mode”.
• Dielectric Strength Test
1) Remove the battery pack. See subsection 9.4.5
for details on how to remove it.
2) Short-circuit the battery connection terminals in
the terminal box.
3) Turn OFF the dielectric strength tester. Then
connect the tester between the shorted battery
connection terminals and the grounding
terminal. Be sure to connect the grounding lead
of the dielectric strength tester to the ground
terminal.
4) Set the current limit on the dielectric strength
tester to 0.1 mA, then turn ON the power and
gradually increase the test voltage from ‘0’ to
the specified voltage.
5) When the specified voltage is reached, hold it
for one minute.
6) After completing this test, slowly decrease the
voltage to avoid any voltage surges.
NOTE
When storing the instrument with a battery
pack, it is recommended to put the instrument in
Deep Sleep mode to conserve the batteries. For
details on how to switch to Deep Sleep mode,
refer to subsection 8.3.12 “Switching to Deep
Sleep Mode”.
2.8 Installation of an Explosion-
Protected Instrument
If a customer makes a repair or modification to an
intrinsically safe instrument and the instrument is
not restored to its original condition, its intrinsically
safe construction may be compromised and the
instrument may be hazardous to operate. Please
contact Yokogawa before making any repair or
modification to an instrument.
CAUTION
This instrument has been tested and certified
as being intrinsically safe. Please note that
severe restrictions apply to this instrument’s
construction, installation, external wiring,
maintenance and repair. A failure to abide by
these restrictions could make the instrument a
hazard to operate.
WARNING
The battery pack may be replaced in a
hazardous area. 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.
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, Class
3610, Class 3611, Class 3810, NEMA 250,
ANSI/ISA-60079-0, ANSI/ISA-60079-11
• 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: NEMA 4X (Indoors and outdoors).
• Temperature Class: T4
• Ambient temperature: -50 to 70°C