Yokogawa EJX118A - Manual (Page 22)

<3. Component Names>
3-1
IM 01C25H01-01E
3. Component Names
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Diaphragm seal
with flushing connection ring
Transmitter section*
*See below for details.
Pressure-detector section
Cover flange
Diaphragm seal
(high pressure side)
Diaphragm seal
(low pressure side)
Capillary tube
Drain/vent plug
Flushing
connection ring
Transmitter section*
*See below for details.
Pressure-detector section
Cover flange
Diaphragm seal
EJ118 EJ438
Figure 3.1 Component Names (External View of Flush type)
HIGH LOW
H L H L H L
E D
H L
E D
YES (Write disabled) NO (Write enabled)
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Cover flange
CPU assembly
Integral
indicator (Note 1)
Amplifier cover
Conduit connection
Zero-adjustment
screw
Pressure-detector section
External indicator conduit
connection (Note 1)
Transmitter section
Slide switch
(Note 2)
Mounting screw
Range-setting
switch (Note 1)
(See Subsection 6.6)
Burnout Direction
Switch Position
Burnout direction switch (BO)
Burnout Direction
Write Protection
Switch Position
Write Protection
Hardware write protection switch (WR)
Bolt
(Note 2) (Note 2)
BO H L
WR E D
Burnout direction switch
Write protection switch
Note 1: See subsection 8.2, “Model and Suffix Codes,” for details.
Note 2: Applicable for BRAIN/HART communication type. Set the switches as shown in the figure above to set the burn-out direction
and write protection. The Burnout switch is set to the H side for delivery (unless option code /C1 or /C2 is specified in the order),
and the hardware write protection switch is set to E side. The setting of the switches can be confirmed via communication. An
external zero adjustment screw can only be disabled by communication. To disable the screw, set a parameter before activating
the hardware write protect function. See each communication manual for details.
Figure 3.2 Component Names (Transmitter Section Details)
Table 3.1 Display Symbol
Display Symbol Meaning of Display Symbol
Display mode is ‘square root’. (Display is not lit when ‘linear’ mode.)
The output signal being zero-adjusted is increasing.
The output signal being zero-adjusted is decreasing.
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Write protect function is enabled.