EDS12-1K Datasheet, PDF (1/4 Pages) Fuji Electric – ELECTRO-PNEUMATIC POSITIONER

ELECTRO-PNEUMATIC POSITIONER
DATA SHEET
The electro-pneumatic positioner converts a 4 to 20mA DC
operation signal from an electronic controller, etc. into a
pneumatic signal to drive a diaphragm control valve. The op-
erating position is determined accurately by feedback via
links to the positioner.
FEATURES
1. Various types
Flame-proof type, intrinsically safe explosion-proof type,
split range type, etc. are available.
2. Compactness and light mass {weight} result in easy
mounting.
Easily mounted because of light mass 3kg to a control
valve by using its link mechanism and clamper.
3. A low input resistance of 200Ω permits two positioners to
simultaneously operate.
ZLA
SPECIFICATIONS
Input signal : 4 to 20mA DC, 4 to 12mA DC or 12 to
20mA DC
Input resistance : Approx. 200Ω (at 20˚C)
Accuracy rating : ± 1.0% of full range
Hysteresis : 0.75% of full range
Response time : Approx. 2 sec
(90% time of full range when using a valve
having the top of 240mm diameter and lift
of 16mm)
Lift adjusting range (Lever rotating range) :
10 to 100mm (6˚ to 40˚)
Air supply pressure and output signal :
Air supply pressure Output signal
[kPa] {kgf/cm²}
[kPa] {kgf/cm²}
140 {1.43}
160 {1.63}
240 {2.45}
19.6 to 98.1 {0.2 to 1.0}
39.2 to 117.7 {0.4 to 1.2}
39.2 to 196.1 {0.4 to 2.0}
Output signal pressure gauge :
JIS class 3 with the graduation angle of
270˚
Input/output operations :
As specified by the customer
Normal action;
The output signal level increases as
the input signal level increases.
Reverse action;
The output signal level decreases as
the input signal level increases.
Nominal air consumption :
12NR/min (at the supply air pressure of
140kPa{1.43kgf/cm²})
20NR/min (at the supply air pressure of
240kPa{2.45kgf/cm²})
Maximum air consumption :
60NR/min (at the supply air pressure of
140kPa{1.43kgf/cm²})
80NR/min (at the supply air pressure of
240kPa{2.45kgf/cm²})
Ambient temperature :
–20 to +80˚C
Intrinsically safe explosion-proof type;
–20 to +60˚C
Flame-proof type;
–20 to +70˚C
Ambient humidity :
Less than 95% RH
External dimensions (H × W × D) :
215 × 212 × 128mm
Mas{weight} : Approx. 3kg
Air pipe connection :
Rc¹/4
Conduit connection :
G¹/2
EDS12-1k
Date Mar. 31, 1999