MOTOYAMA EA90A, Инструкция по эксплуатации

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Model EA91A＆EA90A
GENERAL INFORMATION
2
≦±0.3％ F.S
≦6.0ℓ/ min Nor (Sup. 140kPaG (1.4kgf/cm
2
G), Signal 50％)
7.0 ℓ/min Nor (Sup. 140kPaG (1.4kgf/cm
2
G), Signal 50％)
≧100MΩ (with 500V DC Mega between terminal and case)
Polyurethane resin paint, Munsell 2.5PB 5/8 Blue
Approx. 2.9kg
【Note】 (1) ※Available as options on customer's request.
(2) Model EA90A/EA90AC positioner is not available for reverse action type pilot.
4〜20mADC
250Ω
Max. 500kPaG(5.0kgf/cm
2
G)
IEC IP65（※IEC IP66）
Rc 1/4（PT 1/4）
G 1/2
Linear
10〜65mm
(※over65‒135mm)
≦±1.0%F.S
≦ 1.0%F.S
≦ 0.1%F.S
10〜65mm
(※over65‒135mm)
≦±1.0%F.S
≦ 1.0%F.S
≦ 0.1%F.S
≦±2.0%F.S
≦ 1.5%F.S
≦ 0.3%F.S
−40〜100℃（−20〜60℃ for explosion protection） −20〜60℃
60°Eq%
90°Linear
60° （Linear）※
≦±1.0%F.S
≦ 1.5%F.S
≦ 0.3%F.S
60°Eq%
90°Linear
60° （Linear）※
2.1 Purpose
The Model EA91A and EA90A Electro-pneumatic Valve Positioners are mounted to control valves. They convert
electric signals from the controller into pneumatic pressure to control the opening of the control valve properly.
The valve positioners are of explosion-protected construction, and are improved the positioning accuracy
and response performance of process control valves installed in hazardous areas.
2.2 Applicable Regulation
2.3 Standard Specifications
The valve positioners delivered are passed the test in accordance with technical criteria of explosion-
protected construction standard for electrical machine and equipment (issued by the Ministry of Labor in
Japan, No. 556, 1996).
Painting
Mass
Type
Input Current
Input Resistance
Supply Air Pressure
Structure
Connection
Characteristics
Explosion-protection
Protection Class
Air Piping Connection
Conduit Connection
Output Characteristics
Standard Stroke
Linearity
Hysteresis Error
Dead band
(substance alone)
Repeatability
Air Consumption
Maximum
Supply and Exhaust of air
Insulation Resistance
Ambient Temperature
Model EA91A
Lever Type
(Single Action)
Model EA91AC
Cam Type
(Single Action)
Model EA90A
Lever Type
(Single Action)
Model 90AC
Cam Type
(Single Action)
Flame-proof type
(JIS) Ex sd ⅡC T6X
(NEPSl) Ex dm ⅡC CT6
(KOSHA) Ex dmb ⅡC T6
Certifd No.12-AV4BO-0114
Intrinsic safety type
(JIS) Ex ia ⅡC T5
(NEPSl) Ex ia ⅡC T5