FUJI EDS7-65D

WATER LEVEL TRANSMITTER
DATA SHEET
FQK
This water level transmitter is used for measuring the level
of clean water, sewage water, well, river, etc.
The detector is placed on the bottom of the water, and the
water head pressure acting on the pressure receiving
diaphragm is detected, converted into a current signal and
then transmitted to a receiving instrument via the connector
terminal.
FEATURES
1. Accuracy as high as ±0.2 %
Excellent performance has been realized with a
highly evaluated capacitance type silicon sensor and
a microprocessor.
2. Powerful arrester built-in
Both detector and connector terminal are equipped
with a lightning arrester to secure reliable lightning
protection.
3. Remotely adjustable
This transmitter is remotely adjustable with a handheld communicator.
SPECIFICATIONS
<Functional specifications>
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
DETECTOR
CONNECTOR
TERMINSL
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
<Performance specifications>
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
<Physical specifications>
Material (detector):
Pressure receiving diaphragm; SUS 316L
Outer tube; SUS 316
Hollow cable; PVC or PE covering
EDS7-65d
Date
Apr. 1, 2011
FQK
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)
OPERATING PRINCIPLE OF DETECTOR
To connector terminal
DC 4∼20mA
Hollow cable
Hollow pipe
Outer tube
Power circuit
Microprocessor
Detection circuit
<Optional specifications>
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)
Pressure sensor
Pressure receiving
diaphragm
Water pressure
SCOPE OF DELIVERY
Transmitter (detector + connector terminal, with hollow
cable and pipe mounting bracket)
Detector stand and chain when specified at option,
RELATED DEVICE
Hand-held communicator (type FXW. Refer to EDS8-47.)
SYSTEM CONFIGURATION (EXAMPLE)
Water level transmitter
Connector terminal
DC 4∼20mA
Distributor
DC 1∼5V
Hollow cable
Power supply
Detector
2
Receiving instrument
CODE SYMBOLS
1 2 3 4 5 6 7 8
F QK
9 10 11
Description
3 Measuring range
0~1.5..........13m
0~10...........50m
1
2
Hollow cable length (m)
10
20
30
40
50
60
70
80
90
100
1
2
3
4
5
6
7
8
9
A
Hollow cable material
PVC (for general application)
PE (for preventing corrosion)
A
B
Indicator (repeater)
None
Analog indicator (% scale)
Analog indicator (actual-value scale)
Y
A
B
Detector stand
Without
With (ø267)
With (ø180)
With (ø95)
0
1
2
3
Application
General
Sewage water (Sludge protection)
0
1
0
1
2
3
4
5
Select B for the 6th digit as hollow cable material
Chain (Detector)
Without
With 10m
With 20m
With 30m
With 40m
With 50m
EXTERNAL CONNECTION DIAGRAM
Check terminals
+
--/CK--
CK +
ORDERING INFORMATION
1. Product name
2. Type
3. Measuring range
3
FQK
OUTLINE DIAGRAM (Unit: mm)
MTG. PIPE
JIS 50A (2B)
CONNECTOR TERMINAL
225
163
WITH INDICATOR
100
47
U. BOLT (M8)
27
(27)
52.5
ø80
153
119
78
43
A
CABLE CONN.
25
INDICATOR (OPTION)
Chain
(of specified length)
CABLE
8
ø15
ø46
6
19
ø52
DETECTOR
DETAIL A
381
303
303
G1/2
ø43
100
22
ZERO LEVEL
With chain
øD
DETECTOR STAND
9th code
øD
1
267
2
180
3
95