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Thiết Bị Đo Mức Nước Model FQK, EDS7-65d
Model | : | FQK, EDS7-65d |
Manufacturer | : | FUJI ELECTRIC |
Origin | : | JAPAN |
Measurement item :
Water level of clean water, sewage
water, well, river, etc.
(Note: Avoid a vicinity of chemical
injection site.)
Measuring range:
0 to 1.5 ... 13 m
0 to 10 ... 50 m
Output: 4 to 20 mA DC
Power supply: 24 V DC (10.5 to 32 V)
Wiring system: 2-wire system
Allowable load resistance:
0 to 600 Ω (at power supply of 24 V DC)
Note: A load resistance of at least 250
Ω is required for communications with a
hand-held communicator.
Remote setting: Zero/span adjustments, range setting and
damping setting
(Settable with a hand-held communicator.)
Communication line conditions (when using hand-held
communicator): Line length; Max. 2 km
Load resistance; 250 to 600 Ω
Load capacity; 0.22 µF or less
Load inductance; 3.3 mH or less
Saturation output:
Upper limit: 20.8 mA, lower limit: 3.8 mA
Damping: Time constant variable within 0 to 32 sec
(Settable with a hand-held communicator.)
Zero and span adjustments:
Adjustable from connector terminal or
remotely adjustable with hand-held
communicator.
Zero point shift: ±35% of maximum measuring range
Span adjustable range:
10 to 100% of maximum measuring range
(Measuring range must not be exceeded.)
Liquid contacting temperature (detector):
0 to 50˚C
Ambient temperature (connector terminal):
-20 to +60˚C
Storage temperature:
-30 to +70˚C
Accuracy rating: ±0.2% of measuring span
Allowable overpressure:
Up to 2 times of maximum measuring range
Temperature effect:
±(0.3 + 0.2 × URL / X) % /30˚C
URL; Upper range limit (13 or 50 m)
X; Actual measuring span
Material (detector):
Pressure receiving diaphragm; SUS 316L
Outer tube; SUS 316
Hollow cable; PVC or PE covering
Enclosure: Detector: IP68
The pressure detector of the type for
sewage water is provided with a sludge
protector.
Connector terminal: JIS C0920 immersion-proof type
Mass (weight) approx:
Detector; 2 kg
Connector terminal; 3.5 kg (excluding cable)
Cable; 3 kg /10 m
Mounting method:
Detector; Suspended in water or placed
at water bottom.
Repeater; Mounted on 2B pipe or wall.
Arrester: Built in both detector and connector
terminal.
Lightning resistance
Detector: 10 kA, Repeater: 2500 A (8/20 µs)
Indicator (repeater):
Analog indicator
% scale or actual-value scale
Detector stand: For installing detector at water bottom
SUS 304 (φ267, φ180, φ95 ··· by order)
Chain: SUS 316 (for hoisting the detector)
OPERATING PRINCIPLE OF DETECTOR
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