Yokogawa 2-Wire Dual Channel Transmitter/Analyzer FLXA21 - Manual (Page 210)

<19. TROUBLESHOOTING>
19-2
IM 12A01A02-01E 5th Edition : Oct. 31, 2013-00
n Replacement of Modules
Only authorized person of Yokogawa is allowed to replace modules.
Be sure to keep the replacement procedure below.
CAUTION
Turn off the power supply to the analyzer before replacement of modules.
Lock Unlock
Figure 19.3 Locking the module
Do not hold the upper fine part when pulling out the module.
First, unlock the module by releasing the lock mechanism on the left and right of the module.
Use a slotted (flat head) screwdriver to pull-out the module. Before pull-out the module, loose a
terminal screw to hook a screwdriver.
Figure 19.4 Pull-out the module
After replacement of modules, wire the sensor.
NOTE
When the wiring of sensors is finished, be sure to attach the wiring covers. Furthermore, make
sure the module is locked with the mechanisms on the left and right of the module.
NOTE
Confirm that all locking-tabs (including for BLANK slots) are “Locked” position when close the
front panel.
If locking-tabs are “Unlock” position, the front panel may be interfered with locking-tabs.