<4.  WIRING>
4-6
IM 01E30D01-01EN
4.5   Wiring Connections
(1)  Removing Cover
The cover has the locking screws in front and 
behind it as shown in Figure 4.5.1 in case of 
explosion proof type. This is used for the cover-
lock system. Loosen cover locking screws 
clockwise using a hexagonal wrench (nominal size 
3) to unlock the cover. (Upon shipment from the 
manufacturing plant, the cover is unlocked.)
Holdtheowmeterwithyourhandandremovethe
cover by turning it in the direction of the arrow as 
shown below (both explosion proof and general 
purpose types).
F0411.ai
Cover locking 
screws
Explosion proof type Both Explosion proof and 
General purpose types
Figure 4.5.1  Removing the Terminal Box Cover
(2) TerminalConguration(General-purpose
Use/ExplosionProofTypeexceptTIIS)
When the cover is removed, the connection 
terminals will be visible.
SUPPLY
DO
+
−
+
−
➂
➃
➄
➀
➁
Figure4.5.2 TerminalConguration
The description of the terminal symbols is shown in 
Table 4.5.1.
Table 4.5.1  Terminal Symbols
No. Terminal Symbols  Description 
➀
Functional grounding
➁
➂
+
–
SUPPLY
Power supply and current output
➃
➄
+
–
DO
 
Digital output (One output can be selected 
from pulse, alarm or status outputs.) 
(3) TerminalConguration(TIISExplosion
Proof Type)
When the cover is removed, the connection 
terminal will be visible.
SUPPLY
DO
➀
➂
➃
➄
➁
➅
Figure4.5.3 TerminalConguration
The description of the terminal symbols is shown in 
Table 4.5.2.
Table 4.5.2  Terminal Symbols
No. Terminal Symbols  Description 
➀
Functional grounding
➁
Class A grounding
➂
➃
+
–
SUPPLY
Power supply and current output
➄
➅
+
–
DO
 
Digital output (One output can be selected 
from pulse, alarm or status outputs.)