Bulletin No. MCE‐B6110G

General Specifications

Model EA10S
Flameproof Type Explosion‐protected Construction

Intelligent Valve Positioner
Model EA10S intelligent valve positioners are electro
pneumatic valve positioners that are equipped withmicroprocessors and operate control valves precisely
with PID algorithm, with flameproof type explosion
protected construction.
Unlike conventional electro‐pneumatic positioners,
EA10S positioners have various functions such as auto
calibration, cutoff and flow characteristic change, andcan show extremely improved performances ofoperability and functionality.
HART®‐Protocol communication is equipped as a normal
function and analog travel transmitter is optional. These
functions are very useful for plant maintenance byremotely monitoring the operating condition of controlvalves.

1. FEATURES
 Easy adjustment by function of auto calibration.
Adjustment time can be greatly reduced since calibration of zero point and stroke, and selection of PID
parameters are automatically processed with simple action.
 Display of operation status.
Operation status at the moment can be confirmed on site since valve travel, input signal and error can bedisplayed on LCD monitor installed on positioner itself.
 Manual buttons enable all kinds of adjustment and setup.
Any adjustment and setup are possible by operating manual buttons installed on positioner itself.
No handheld communicator is required.
 Adjustment is possible even in explosive environment.
Any adjustment and setup are possible by operating manual buttons even in explosive environment.
 Easy setup of various flows characteristic.
In addition to linear, equal percentage and quick opening, arbitrary characteristic can be set with simple
action. Modification work, which has been formerly done by exchanging cam, of inherent characteristic forrotary valves, etc. becomes much easier.
 Assured shutoff is possible by cutoff function.
It is possible to set up so that output air pressure to actuator can be forcefully changed to zero or supply
pressure itself immediately when input signal reaches setting value(s). This function enables assured
shutoff of valves.
 HART®‐Protocol communication function is equipped.
Positioners can be adjusted, set and monitored remotely by HART® ‐Protocol communication function.
 Four Diagnostic Functions are equipped
Total valve operation, turn over times, shut‐off times and travel deviation alert, these four diagnostic
Functions will help reduce valve maintenance man‐power.
1Model EA10S

2. SPECIFICATIONS
Model

EA10S

Input Signal

4 to 20mA DC (Minimum current required: 3.8mA) Note1

Input ResistanceMax. 455Ω equivalent (when input signal is 20mA)

Supply Air Pressure

Max. 500kPaG

Applicable Actuator Type

Protection Class

Linear motion, Rotary motion / Single action type
TIIS Ex d ⅡC T6 Gb
IEC Ex d ⅡC T6 Gb
ATEX Ⅱ2G Ex d ⅡC T6 Gb
KTL Ex d ⅡC T6
NEPSI Ex d ⅡC T6 Gb
FM ClassⅠ, Div.1 Gr. A, B, C, D T6
IEC IP66

Lightning Protection

IEC61000‐4‐5, Performance Criteria：A@Level 2(1kV), B@Level 4(4kV) Note5

Air Piping Connection
Electrical Connection
Standard Stroke
Linearity
Hysteresis Error

Rc 1/4
G1/2 Note3
10 to 130mm (Linear motion) / 60 to 90° (Rotary motion)≦ ±1.0% F.S.
≦ 1.0% F.S.
≦ 4 ℓ/min Nor (Sup.140kPaG, Signal 50%),≦ 5 ℓ/min Nor (Sup.280kPaG, Signal 50%)
≧ 55 ℓ/min Nor (Sup.140kPaG, Signal 50%)
≧ 90 ℓ/min Nor (Sup.280kPaG, Signal 50%)

Explosion‐protection
StructureConnection

Characteristics

Air Consumption
Max Sup / Exhaust Air

Function

Ambient Temperature‐20℃ to +80℃ (Explosion‐protected: ‐20℃ to +60℃)

Auto Calibration
Flow Characteristic
ChangeZero and stroke adjustment, PID parameter selection

CutoffSetting value(s) for cutoff can be set arbitrarily.

Diagnosis

Total valve operation, Turn over times, Shut‐off times, Travel Deviation alert

Communication

Linear, Equal %, Quick opening, User’s definition

HART®‐Protocol communication

Manual Operation

Applicable by A/M switching bolt

Body Material

Die‐cast aluminum

Painting Color

BlueOption

HART® communication, Position transmitter (4 to 20mA DC)Note4Weight【Notes】

Approx. 3.6 kg
1. Current of 3.8mA or larger is constantly required for operating microprocessor inside positioner.
2. Cable gland (Model No.: KXBF‐16) is attached when TIIS explosion protection is specified.
3. Electrical Connection: When NPT1/2” or M20 is required, the adapter is available on request.
4. Position transmitter option requires an independent electric source of 10 to 28 VDC.
5.Performance Criteria：A=No degradation during testing. B=Temporary degradation during testing, but isself‐recovering.

3. MODEL NUMBERING SYSTEM
Specifications
TypeIntelligent PositionerMotion

Linear motion, Rotary motion

Actuator Type

Single action

Function

Basic Model No.

HART®‐Protocol communication

Position transmitter + HART®
Air Piping Connection Rc1/4※ HART® is a registered trademark of the FieldComm Group.
※ All other marks are the property of their respective owners.

2

EA10S‐Suffix Code**

**LS
1
3R*

Model EA10S
4. CONSTRUCTION
Left side

Front side

5. EXTERNAL DIMENSIONS
Adapter is attached when FM explosion
protection is specified.

性(for Stroke of)65.5 ( to 25mm）
101.5 ( to 40mm)
196.5 ( to 70mm)
378.5 ( to 130mm)

3Bulletin No.MCE-B6110G

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202402 MSP