EDS9-47C Datasheet, PDF (1/4 Pages) Fuji Electric – OPTICAL-PNEUMATIC CONVERTER

FFI SYSTEM
OPTICAL-PNEUMATIC CONVERTER
DATA SHEET
The optical-pneumatic converter is used to convert opti-
cal signal from master station, etc. to pneumatic signal (0.2
to 1.0kg/cm² etc.). It is installed in site when operating
pneumatic final control element such as pneumatic positioner
or diaphragm valve.
Signals are processed in digital mode with built-in micro-
computer, providing high accuracy and intelligent perfor-
mance, adoption of piezo-electric element (flapper) has
realized low-power operation.
This instrument is φ6 mm optical fiber cable connec-
tion type.
ZLD
SPECIFICATIONS
Functional specifications
Input signal: FFI system optical digital signal
Output signal and air supply pressure:
Output signal
Air supply pressure
19.6 to 98.1kPa {0.2 to 1.0kgf/cm²}
39.2 to 196.1kPa {0.4 to 2.0kgf/cm²)
3 to 15psi
3 to 27psi
6 to 30psi
140kPa {1.43kgf/cm²}
240kPa {2.45kgf/cm²}
20± 1psi
32± 1psi
35± 1psi
Power supply:
Self-diagnosis:
Built-in lithium battery (expected life;
about 2 years/cell)
Indication on display unit (option) and
transmission to host master station
Item
HHC, MS Indication
(*¹)
Battery voltage
Converter temperature
Abnormal output (*²)
Battery voltage drop
Notes: *(¹) HHC: Hand-held communication
MS: Master station
(²) Output overflow or large offset
Emergency operation:
In case of emergency (abnormal input),
output operation can be select from
remote setting unit (HHC, MS), as
specified.
• Output; Less than –10%
• Output; more than +110%
Explosion proofing:
Intrinisically safety (JIS i3nG5, safety
barriers not required)
Ambient temperature:
–20 to +60°C
Storage temperature:
–30 to +70°C
Ambient humidity:
0 to 95% RH
Transmission: Half-duplex bidirectional optical trans-
mission with one-line optical fiber
Transmission distance; 1.2 km max.
(free from effect of noise and surge)
Performance specifications
Accuracy:
± 0.5% of full scale
(output ripple; about ± 0.1%)
Response speed:1.5 to 2.5 sec (90% response time at load
capacity 0.5r)
Input/output characteristic:
Linear
Standard air consumption:
12Nr/min.(at air supply pressure 140kPa
{1.43kgf/cm²})
20Nr/min.(at air supply pressure 240kPa
{2.45kgf/cm²})
Maximum air flow:
60Nr/min.(at air supply pressure 140kPa
{1.43kgf/cm²})
80Nr/min.(at air supply pressure 240kPa
{2.45kgf/cm²})
EDS9-47c
Date Jul. 31, 1994