Liquid Leakage Position Sensor
* Information in this page is a reference that you created on the basis of information in the product catalog before the end of production, may be different from the current situation, such as goods for / supported standards options / price / features of the product. Before using, please check the compatibility and safety system.
last update: September 23, 2012
| Model | K7L-UP-FLK | |
|---|---|---|
| Power supply voltage | 100 to 240 VAC 50/60 Hz | |
| Allowable voltage fluctuation range | Rated voltage 85 to 110 % (85 to 264 VAC) | |
| Power consumption | 10 VA max. (at maximum load) | |
| Detection method | Inductive method | |
| Operate resistance | 50 k, 100 kΩ (selectable) Must operate below each sensitivity setting. * | |
| Release resistance | 350 kΩ min. | |
| Current when electrodes
are shorted |
2 mA/AC max. | |
| Wiring length | 600 m max. (total of Sensing Cable, Connecting Cable, Junction Cable, Area
Separator and general-purpose cable) This value is for completely insulated 600-V 3-conductor VCT cable of with a thickness of 0.75 mm2. No more than 10 Junction Cables can be used. Area Separators are calculated as 10 m each. |
|
| Disconnection
detection function |
Detection signal | 10 VDC |
| Detection time | 45 s max. | |
| Recovery | After normal wiring | |
| Output | Relay output | NO contacts × 2 outputs (leakage, disconnection, error output, and alarm
output) Rated load: 3A 250 VAC/30 VDC Resistive load: 3A 250 VAC/30 VDC Inductive load: 1A 250 VAC/30 VDC Service life: Mechanical: 20 million outputs, Electrical: 80,000 outputs Failure rate P value: 24 VDC at 5 mA (reference value) Contact resistance: 100 mΩ max. (default) |
| 4 to 20-mA output | Allowable load resistance: 500 Ω max.
Resolution: Approx. 10,000 Error: ± 1 %FS Steady state: 4 mA At error detection: 5 mA At disconnection detection: 20 mA At leakage detection: 6 + 12 × Leakage locations (m)/L (m) mA, L: Set distance (default: 600 m) |
|
| Other functions | Shift, compensation, Area setting, Output setting, Output reset, Output test,
Event log, Key protection, and Backlight ON-time setting |
|
| Ambient
temperature |
Operating | -10 to 55 °C (no icing or condensation) |
| Storage | -25 to 65 °C (no icing or condensation) | |
| Ambient
humidity |
Operating | 25 to 85 %RH (no condensation) |
| Storage | 25 to 85 %RH (no condensation) | |
| Altitude | 2000 m max. | |
| External color | Controller: Ivory | |
| Mounting method | Surface mounting, DIN track mounting | |
| Terminal block | Single-line terminal block (Use ferrules.) | |
| Terminal block tightening torque | 0.5 to 0.6 Nm | |
| Degree of protection | IP20 (Panel-mounted) | |
| Accessories | Connecting Cable, Terminator, Instruction manual | |
| Type | Name | Another Name | Chemical formula |
|---|---|---|---|
| Alcohol | Methanol | Methyl Alcohol | CH3OH |
| Acid | Hydrochloric Acid | --- | HCI |
| Sulfuric Acid | H2SO4 | ||
| Nitric Acid | HNO3 | ||
| Acetic Acid 98% | CH3COOH | ||
| Phosphoric Acid | H3PO4 | ||
| Hydrofluoric Acid | HF | ||
| Alkali | Ammonia Solution | 28% Ammonia Solution | NH3 |
| Sodium Hydroxide | Caustic Soda | NaOH | |
| Potassium Hydroxide | Caustic Potash | KOH | |
| Other | Sodium Hypochlorite | --- | NaClO |
| Sodium Hydrogen Sulfite | Sodium Bisulfite | NaHSO3 | |
| Hydrogen Peroxide | Hydrogen Peroxide 30% | H2O2 |
| Model | K7L-UP-FLK | |
|---|---|---|
| Leakage location accuracy *
(at an ambient temperature of 25 °C) |
Total length
100 m max. ± 1 m 101 to 600 m ± 1 % |
|
| Response time | 45 s max.
Startup time after power is turned ON: approx. 30 s |
|
| Display | LCD, 12 columns × 4 lines (characters) with backlight
Normal: Lit green Error: Flashing green Leakage detected: Lit red Disconnection detected: Flashing red |
|
| Insulation resistance | 20 MΩ max. (at 500 MVDC)
Measured locations: Between all pairs of (1), (2), and (3), below. (1) Power supply terminals, (2) Relay output terminals, (3) All terminals together excluding (1) and (2) |
|
| Dielectric strength | 2,000 VAC 50/60 Hz 1 min.
Measured locations: Same as for insulation resistance. |
|
| Vibration resistance | Frequency: 10 to 55 Hz, Acceleration: 50 m/s2, Single amplitude: 0.35 mm, 10
sweeps of 5 min each in X, Y, and Z directions |
|
| Shock resistance | 130 m/s2, 3 times each for 3 axes in six directions | |
| Weight (Sensor only) | Approx. 185 g | |
| Memory protection | EEPROM (non-volatile memory) | |
| Installation environment | Installation Category II, Pollution Degree 2 | |
| Safety standards | UL508, CAN/CSA-C22.2 No.14
EN61010-1 (IEC61010-1) |
|
| EMC | EMI
EN61326-1 (Industrial applications) |
Electromagnetic radiation interference: CISPR11 classA
Noise terminal voltage: CISPR11 classA |
| EMS
EN61326-1 (Industrial applications) |
Electrostatic discharge immunity: EN61000-4-2: 4 kV (contact), 8 kV (in air)
Radiated electromagnetic field immunity: EN61000-4-3: 10 V/m (80 MHz to 1 GHz), 3 V/m (1.4 to 2 GHz), 1 V/m (2.0 to 2.7 GHz) Fast transient/burst immunity: EN61000-4-4: 2 kV (power line), 1 kV (I/O signal lines) Surge immunity: EN61000-4-5: 1 kV between lines (power line), 2 kV between grounds (power line), 1 kV between grounds (sensor line) Conducted noise immunity: EN61000-4-6: 3V (0.15 to 80 MHz) Power frequency magnetic immunity: EN61000-4-8: 30A/m Voltage dip and interruption immunity: EN61000-4-11: 1 cycle 0% (rated voltage), 10/12 cycle 40% (rated voltage), 25/30 cycle 70% (rated voltage) |
|
| Communications protocol | CompoWay/F | Modbus (RTU mode) |
|---|---|---|
| Transmission path connections | Multi-point (32 nodes max. including Master) | |
| Communications method | RS-485 (two-wire method, half-duplex) | |
| Synchronization method | Start-stop synchronization | |
| Baud rate * | 4800/9600/19200/38400 bps | |
| Transmission code | ASCII | Binary |
| Data length * | 7/8 bits | 8 bits |
| Stop bit length * | 1/2 bits | Set automatically (no setting) depending on the
vertical parity setting. Without vertical parity: 2 bit With vertical parity: 1 bit |
| Error detection | Vertical parity (none, even odd)
BCC (Block Check Character) |
Vertical parity (none, even odd)
CRC-16 (Cyclical Redundancy Check) |
| Wait time | 00 to 99 ms (Default: 20 ms) | |
* Baud rate, data length, stop bit length and vertical parity can be separately set.
last update: September 23, 2012