EDS7-63 Datasheet, PDF (1/8 Pages) Fuji Electric – OPTICAL LEVEL TRANSMITTER

FFI SYSTEM
OPTICAL LEVEL TRANSMITTER
DATA SHEET
FPK···3
The Model FPK 3 Optical Level Transmitter measures
pressures of various fluids accurately, converts them into
optical digital signals and outputs them. This is an intelli-
gent transmitter providing excellent performance and func-
tions due to incorporation of electrostatic capacitance type
silicon sensor and microprocessor.
A fiber optical cable used for the signal transmission line
forms an optical field instrumentation system together with
an optical star coupler and a master station.
FEATURES
1. Resistive to noise and lightning
Optical signal ensures a reliable signal transmission,
because it is not be affected by external noise and in-
ductive lightning. Use of a nonmetallic optical (fiber) cable
prevents propagation of inductive lightning through the
cable, so a signal transmission immune to lightning can
be realized.
2. Reliability due to redundant configuration
Host system can be duplicated by using two optical cable
trunk lines (between an optical star coupler and host
system). This enhances reliability of users’ systems.
3. Intrinsic safety type explosion-proof
Each equipment with a built-in battery can be constructed
so as to be an intrinsic safety type individually (intrinsic
safety type barrier unnecessary).
SPECIFICATIONS
Functional specifications
Fluids measured: Liquid, gas or steam
Measuring range:
Type
Span [kPa]
Range limits [kPa]
Minimum Maximum Lower range Upper range
value
value
limit
limit
FPK 3
0.8
32
-32
32
FPK 5
3.25
130
-130
130
FPK 6
12.5
500
-500
500
Operating pressure:
Up to maximum operating pressure of
flange
EDS7-63
Date May. 20, 2004