WATER LEVEL TRANSMITTER
DATA SHEET
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.
FQK
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.
DETECTOR
CONNECTOR TERMINSL
Damping:
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
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
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 µ s)
OPERATING PRINCIPLE OF DETECTOR
To connector terminal DC 4∼20mA Hollow cable
Hollow pipe Outer tube Power circuit
Microprocessor
Indicator (repeater): Analog indicator % scale or actual-value scale Detector stand: For installing detector at water bottom SUS 304 (φ 267, φ180, φ95 ··· by order) Chain: SUS 316 (for hoisting the detector)
Detection circuit
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
Receiving instrument
Hollow cable Power supply
Detector
2
CODE SYMBOLS
12345678 9 10 11
FQK 1 2 1 2 3 4 5 6 7 8 9 A A B Y A B
3Measuring range 0~1.5..........13m 0~10...........50m Hollow cable length (m) 10 20 30 40 50 60 70 80 90 100 Hollow cable material PVC (for general application) PE (for preventing corrosion) Indicator (repeater) None Analog indicator (% scale) Analog indicator (actual-value scale) 0 1 2 3 0 1 0 1 2 3 4 5 Detector stand Without With (ø267) With (ø180) With (ø95) Application General Sewage water (Sludge protection) Chain (Detector) Without With 10m With 20m With 30m With 40m With 50m
Description
Select B for the 6th digit as hollow cable material
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) 163 WITH INDICATOR U. BOLT (M8) 47 27 (27) 119 153 100 CONNECTOR TERMINAL 225
ø80 52.5
78
43
A CABLE CONN.
25
INDICATOR (OPTION)
Chain (of specified length)
CABLE
ø15 8 ø46 DETECTOR 303 303 19 G1/2 ø52 6
DETAIL A
381
22
ZERO LEVEL
ø43
With chain øD
100
9th code 1 2 3
øD 267 180 95
DETECTOR STAND
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