Model EA91A＆EA90A
5
2.4 Model Numbering System
2.5 Nameplate Identification
2.6 System Configuration
【Note】
If method of leading external cable is explosion-proof connector(Spec. code:T), applicable standard is JIS, flame-proof.
In case of NEPSI flame-proof type, flame-proof packing connector(cable glands), certified by NEPSI, shall be supplied by
customer.
Flameproof Type
Intrinsic safety Type
Lever Type
Cam Type
Conduit Type (standard)
Explosion-proof conector with packing Type(option)
(1) The safety certified seal nameplate (Official Certification Plate) is attached on the top of positioner case.
(2) The explosion protection "WARNING" nameplate is attached on the upper part of terminal box.
(EA91A and EA90A have different contents each other.)
(3) The specification nameplate is attached on the right side of positioner case.
(4) The orifice plate classification nameplate is attached on the pilot cover.
2.6.1 Model EA91A Electro-Pneumatic Positioner (Flameproof Type)
Hazardous Area
General Equipment
Electro-pneumatic Positioner
Model EA91A
Power Source
4〜20mA DC
Non-hazardous Area
EA91A
EA90A
（Blank）
Ｃ
（Blank）
Ｔ
Structure
Displacement
transfer Method
Method of Leading
External Cable
Specifications
Basic Model No.
Specification Code
Flameproof（EA91A, EA91AC）
労(平25.5)
検
※
本山製作所
Intrinsic Safety（EA90A, EA90AC）
本山製作所
株式
会社
株式
会社
※De
sc
ribed date may be differed by
time of manufacture.
第TC17951号
労(平25.4)
検
※
第TC17899号
