Yokogawa EJX530B - Manual (Page 65)

<9. Maintenance>
9-6
IM 01C27F01-01EN
■ Reassembling the Capsule Assembly
1) Reattach the transmitter section to the
pressure-detector section.
Reattach the stopper with the hexagon-head
screw.
2) Tighten the five setscrews.(Tighten the screws
to a torque of 1.5 N·m)
3) Install the CPU assembly according to
subsection 9.4.3.
4) After completing reassembly, adjust the zero
point and recheck the parameters.
Stopper
Stopper bolt
Transmitter section
Setscrew
Pressure-detector
section
Pipe
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Figure 9.3 Removing and Mounting the Pressure-
detector Section
9.4.5 Replacing the Battery Pack
Regarding the transmitter with intrinsically safe
approval, the battery pack can be replaced without
removing the device in hazardous area.
■ Preparation
Initialize the remaining battery life by using the
parameter of Reset Energy Left in UAPMO block.
When the battery power is burned and emptied,
initialize the remaining battery after prompt
replacement of the battery pack.
■ Removing
1) Remove the terminal box cover.
2) Loosen the two battery pack mounting screws
(see Figure 9.5).
3) Pull out the Battery pack.
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The battery pack mounting
screws cannot be separated
from the battery pack so as
to prevent drop-off.
Figure 9.4 Removing the Battery Pack
■ Remounting
1) Insert the new battery pack lightly.
2) Push the center of the battery pack and insert it
securely.
3) Tighten the two battery pack mounting screws
to a torque of approximately 0.7 N·m.
4) Replace the terminal box cover.
9.4.6 Replacing the Batteries
The batteries in the battery pack can be replaced.
Batteries are not installed when shipped from the
factory. Assemble the battery pack as follows.
WARNING
Be sure to replace the batteries or disassemble
and assemble the battery pack in a safe location.
Doing so in an explosive area could cause an
explosion.
CAUTION
When replacing the batteries, be sure to replace
the two batteries at the same time and do not
use an old and a new battery together.
■ Disassembling
1) Loosen the two battery case mounting screws
(Figure 9.5).
2) Separate the battery case into two parts.
3) Remove the old batteries.