EDS7-11D Datasheet, PDF (1/4 Pages) Fuji Electric – IMMERSION TYPE LEVEL METER

IMMERSION TYPE LEVEL METER
DATA SHEET
FQK
This level meter is used for measuring the level of under-
ground water, river, clean water, sewage or industrial waste
water. It measures the level in the from of water head pres-
sure, converts it into a current signal and then transmits it to a
receiving instrument.
The detector is either suspended in the water or placed on
the bottom of the water. The water head pressure acting on
the diaphragm is measured via a diffusion type silicon strain
gage.
FEATURES
1. Compact, lightweight and highly reliable
Use of a diffusion type silicon strain gage in the pressure
receiving section makes the instrument compact, light-
weight, and strong against vibration and shock, and it can
be installed anyplace.
2. Easy to install
Since the detector is small and light, it can be readily low-
ered into or lifted out of the water via a cable; use of a chain
is unnecessary. For placing it at the bottom of the water,
the detector can be attached to a stand to keep it stable.
3. Easy to install
The construction of the instrument enables easy adjust-
ment of zero point, span and damping in the field.
4. Usable for any kind of water
This level meter can be used for clean water, sewage wa-
ter, industrial water, agricultural water, industrial waste
water, river water or underground water etc.
5. Arrester is builted-in.
SPECIFICATIONS
Measuring range: 0 to 3, 5, 10, 20, 30m
(water density: level message of “one”)
Material:
Detector; Pressure receiving diaphragm
316L stainless steel
Other wetted parts
304 stanless steel
Cable PVC covering
Stand 304 stainless steel
Transmitter:
Aluminum alloy (epoxy-polyure-
than double coating, silver)
(Field indicator cover; black N3)
Output signal: 4 to 20 mA DC
Allowable load resistance:
0 to 550Ω(at power supply of 24V DC)
Transmitter
Detector
Power supply: 24V± 10%DC, 0.48W
(100V or 24V± 10%AC, 50/60Hz, is also
usable. See “Example of configuration”.)
Wiring system: 2-wire system
Liquid temperature:
0 to 30˚C
Ambient temperature:
-20 to +60˚C
Ambient temperature:
Less than 90% RH
Damping:
No damping, or damping with time constant
of 0.8, 2.2, 6 sec; selectable in 4 steps
Zero adjustment, span adjustment width:+1.5m
( ) Upper limit of span: 30 m
Lower limit of span: 3 m
Transmitter waterproof structure:
JIS C 0920 immersion-proof type
External dimensions:
Detector: φ43 x 185mm
Transmitter(H x W x D);
110 x 160 x 185mm
Mass {weight} approx:
Detector; 0.8 kg
Transmitter; 3.5 kg
Cable; 0.3 kg/m
Mounting method:
Detector; Suspended in water or placed at
water bottom
EDS7-11d
Date July. 20, 1994