EDS12-2M Datasheet, PDF (1/4 Pages) Fuji Electric – ELECTRO-PNEUMATIC CONVERTER

ELECTRO-PNEUMATIC CONVERTER
DATA SHEET
The electro-pneumatic converter installed in site converts a 4
to 20mA DC operation signals from an electronic controller
into proportional 19.6 to 98.1 kPa {0.2 to 1.0kgf /cm²} pneu-
matic signals for transmitting to pneumatic positioner, or op-
erating pneumatic final control elements such as diaphragm
valves, etc.
ZLC
FEATURES
1. High conversion accuracy
The guaranteed conversion accuracy is within 0.75%.
2. Various types
Flame-proof type, intrinsically safe explosion-proof type,
split range type, etc. are available.
3. A low input resistance of 200Ω permits two converters to
simultaneously operate.
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 : ± 0.75% of full range
Hysteresis : 0.5% of full range
Response time : Approx. 0.7 sec
(90% time of full range when the load ca-
pacity ia 0.5R)
Air supply pressure and output signal :
Air supply pressure Output signal
[kPa] {kgf/cm²}
[kPa] {kgf/cm²}
140 {1.43}
240 {2.45}
19.6 to 98.1 {0.2 to 1.0}
39.2 to 196.1 {0.4 to 2.0}
Output signal pressure gauge :
As specified by the customer 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) :
176 × 176 × 124mm
Mas{weight} : Approx. 3kg
Air pipe connection :
Rc¹/4 or NPT¹/4 adapter
EDS12-2m
Date Mar. 31, 1999