Ultrasonic Level Meter LIU-330
Product Description
・It can measure a wide range of measured matters such as fines (cement, collected dust, etc.), chemicals, ores, water supply and drainage, and snow.
・Less polluted sensor because of non-contact with measured matters, and not affected by chemical changes due to vapor, gas, or chemicals because of its corrosion resisting structure.
・Using high water-proof IP-66 for the converter.
・It equips noise eliminator, and is designed to be high resistance to noise, surge, and thyristor noise. This permits continuously output.
・A self-diagnostic function using upper and lower contacts and many sensors is mounted.
・The output is an analog output of DC4 to 20 mA . The output circuit is isolated. Regarding the display, any desired unit such as %, m, and mm can be set as a value unit. Analog display can also be promoted by bar at the same time. This facilities checks in the work site.
・Loop check simplified by using the test mode
・Easy ZERO SPAN adjustment.
・With the CPU and memory mounted, any adjustment can be made by simple button operation according to the work site.
・The converter can be installed on the wall or installed on a stanchion by using 50a pipe. They can be adapted to any work site by simple installation work and require only simple maintenance.
・Higher-safety explosion-proof model has been improved to measure chemicals, combustible materials, etc.
・Less polluted sensor because of non-contact with measured matters, and not affected by chemical changes due to vapor, gas, or chemicals because of its corrosion resisting structure.
・Using high water-proof IP-66 for the converter.
・It equips noise eliminator, and is designed to be high resistance to noise, surge, and thyristor noise. This permits continuously output.
・A self-diagnostic function using upper and lower contacts and many sensors is mounted.
・The output is an analog output of DC4 to 20 mA . The output circuit is isolated. Regarding the display, any desired unit such as %, m, and mm can be set as a value unit. Analog display can also be promoted by bar at the same time. This facilities checks in the work site.
・Loop check simplified by using the test mode
・Easy ZERO SPAN adjustment.
・With the CPU and memory mounted, any adjustment can be made by simple button operation according to the work site.
・The converter can be installed on the wall or installed on a stanchion by using 50a pipe. They can be adapted to any work site by simple installation work and require only simple maintenance.
・Higher-safety explosion-proof model has been improved to measure chemicals, combustible materials, etc.
Standard Specifications
● Standard Specifications Transmitter LIU-330
*1 Accuracy at the maximum measurement span under our standard conditions
● Standard Specifications Sensor (main examples)
*2 "Maximum measurement length"corresponds to full height stroke
Models | 330-V, 330-2, 330-3 and 330-4 |
Applicable power supply | 100-240VAC±10%, 50/60Hz, 24VDC(Optional) |
Power consumption | Max. 26VA |
Output signal | 4-20mADC (output range 2.0mA-22mA), with built-in isolator |
Total precision | ±0.25% (full scale)*1 or ±5mm, whichever larger |
Output resolution | 0.1% (full scale) |
Display resolution | 0.1mm/330-V, 1mm/330-2, 10mm/330-3 and 10mm/330-4 |
Maximum count of measurements | 10 measurements per second |
Alarm contact | Upper limit alarm: 1c(NO, COM, NC); capacity: max. 250VAC, 2A Lower limit alarm: 1c(NO, COM, NC); capacity: max. 250VAC, 2A |
Defect alarm | Contact: 1a(NO, COM); Capacity: max. 250VAC, 2A |
Ambient temperature | -20 to 60℃ (no condensation) |
Ambient humidity | 10 to 95% |
Ground terminal | Class D (grounding resistance of 100Ω or less) |
Sensor cable | Dedicated coaxial cable without thermal sensor: RG-63U Dedicated coaxial cable with thermal sensor: RG-62BU-2 |
Case structure | IP(International Protection) Rating: IP66(when equipped with a cable ground) Material: ADC-12; paint color: 5Y7/1 |
Dimensions and weight | 182W x 283H x 120D(mm); approx. 2.7kg |
Display unit | 24-character, 2-line character type; %, m, bar display when equipped with an operations function or linearizer: ton/h or m3, etc. |
● Standard Specifications Sensor (main examples)
Sensor type | US-22T, US-22F | US-30T, US-30F | US-40T, US-40F |
Maximum measuring length*2 | 10m (varies depending on specific conditions) | 40m (varies depending on specific conditions) | 50m (varies depending on specific conditions) |
Non-sensing distance | 30cm (varies depending on specific conditions) | 60cm (varies depending on specific conditions) | 100cm (varies depending on specific conditions) |
Standard installation | US-22T: 50A pipe suspension | US-30T: 50A pipe suspension | US-40T: 50A pipe suspension |
US-22F: JIS 5K 65A flange or equivalent | US-30F: JIS 5K 150A flange or equivalent | US-40F: JIS 5K 200A flange or equivalent | |
Ambient temperature | -20 to +80℃ for the one made of SUS; -20 to +65℃ for the one made of PVC | ||
Ambient humidity | 10-95% | ||
Case structure | IP(International Protection) Rating: IP67 |