EDS6-6G Datasheet, PDF (1/6 Pages) Fuji Electric – WEIR FLOW TRANSMITTER

WEIR FLOW TRANSMITTER
DATA SHEET
This is a weir flow transmitter utilizing an induction po-
tentiometer.
A weir or parshall flume is installed along an open chan-
nel and the head of the water flowing through it is detected
by a float and conveyed as a rotating angle to the induction
potentiometer which transmits a signal current of 4 to 20mA
DC proportionate to the flow rate.
FJC
FEATURES
1. High reIiabiIity
Use of a contactless induction potentiometer assures a
long life and high reliability of the instrument.
2. A variety of specifications available
The transmitter can be provided with intrinsically safe
explosionproofing, various materials for the components,
an arrester plus other items.
3. The operating principle and structure of the transmitter
are simplified for easy operation, maintenance and inspec-
tion.
SPECIFICATIONS
Measuring range:Any water head of 0 to 90…1800 mm
(see the attached characteristic curves for
the relation between water head and flow
rate)
Indicator:
Analog type (0 to 100% scale)
Allowance:
± 1.0% (less than 10% of full scale is not
guaranteed; this accuracy does not in-
clude the instrumental error of weir and
flume)
Output signal: 4 to 20mA DC
Ripple content: 1.5% p-p (at approx. 25 kHz)
Allowable load resistance:
0 to 550Ω (at 24V DC)
Power supply: 13 to 33V DC
(less than 26V DC with intrinsically safe
explosion-proofing)
(less than 27V DC with arrester)
100/24V AC ± 10%, 50/60 Hz
(see example of configuration on final
page)
Wiring method: 2-wire system
Ambient temperature:
–30 to +80°C
(but not usable in freezing condition)
50°C max. with intrinsically safe ex-
plosionproofing
60°C max. with arrester
Ambient humidity:
Less than 95% RH
Principal materials:
Wire rope; SUS304 (stainless steel)
Float;
Hard PVC or SUS304
Counterweight; Coated with zinc
metallikon or SUS304
Instrument body; Aluminum alloy
Conduit connection:
G3/4 internal thread
Enclosure:
Splash-proof (JIS C 0920)
Arrester:
Built in when requested
Explosionproof structure:
Intrinsically safe explosionproofing
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Mass:
Approx. 10.5 kg (excluding float and coun-
terweight)
External dimensions (HxWxD):
320 x 304 x 218 mm
Finish color: Silver (melamine paint);
may be provided with acid and alkaliproof
treatment
Range of delivery:
Transmitter, Float, Counterweight,
Wire rope (Weir excluded)
EDS6-6g
Date NoV. 30, 1995