features
ULTRASONIC AREA-VELOCITY FLOW METER AVFM-Ⅱ
Flow velocity and water level can be measured simultaneously by one sensor! It can be used only by fixing the sensor to the bottom of a water channel. Large-scale constructions such as weir and pipe establishment are not needed.
- Flow velocity and water level are consecutively measured by one sensor.
- No weir or flume is needed.
- It is easy to set the sensor using a fixing screw and mounting bracket.
- All necessary settings are to enter the pipe diameter and water channel width. There is no difficult setting.
- Even a high-speed flow of up to 6 m/sec can be measured.
Operating Principles
A flow velocity (Doppler method) and water level (time flight) are consecutively measured through the ultrasonic wave transmitted from the sensor. The flow rate is calculated by setting the pipe diameter and water channel width.
Standard Specification
| Controller | |
|---|---|
| Power Source | 100～130VAC 50/60Hz（Max6.2W）※Option200V～250VAC 50/60Hz（Max6.2W）9～36VDC（Max4.2W） |
| Output | DC4～20mA（Allowable load resistance 1000Ω）x3（Flow，Level & Velocity） |
| Output Contact | SPDT x 2 |
| Contact Capacity | 250VAC 5A |
| Display | 4 digit LCD（upper） 16 digit LCD(lower） |
| Allowable Temperature | -20～+60℃（no freezing,no condensation） |
| Enclosure Rating | IP-66 NEMA4X |
| Sensor | |
| Sensor material | PVC/Epoxy resin |
| Allowable Temperature | -15～+65℃ |
| Accuracy | Level／±0.25% of rangeVelocity／±2% of readings |
| Measuring range | Velocity／Min 0.03m/secMax 6m/secLevel／Min 25.4mmMax 4.57m |
| Cable material | Polyurethane |
| Cable length | About 7.6m |
Product Lineup
AVFM-2
Standard type
STINGRAY
Portable Type
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Features
It measures both clear water and cloudy liquids accurately!
- It can make measurement quickly and accurately from the outside of a pipe.
- It can be attached directly to the existing pipe regardless of materials (metal pipe, resin pipe, lining pipe, etc.).
- The settings can be made easily according to instructions.
- The instantaneous flow rate, flow velocity, and integral flow rate can be confirmed on the display.
Operating Principles
Ultrasonic waves are transmitted into a liquid alternately from the 2 sensors attached to the outside of the pipe, and difference between the propagation time of the ultrasonic wave in the upstream direction and the propagation time in the downstream direction is detected to obtain the flow velocity. Then, the flow rate is calculated by multiplying the cross section area of the pipe diameter.
Standard Specification
| Specification／Model | PF330 | PF220 |
|---|---|---|
| Power Source | AC110～240V ±10%Battery Life-20 hours from fullycharged, depending on load. | AC110～240V ±10% Battery Life-20 hours from fullycharged, depending on load. |
| Allowable Temperature | Operation：-20℃～+50℃Keeping：-25℃～+65℃ | Operation：-20℃～+50℃Keeping：-25℃～+65℃ |
| Pipes | 13 OD to 2000mm OD1500 OD to 5000mm OD（option） | 13 OD to 115mm OD（PF220A）50 OD to 1000mm OD（PF220B) |
| Flow Range | 0.1m/sec to 20m/secbi-directional | 0.1m/sec to 20m/secbi-directional |
| Temperature Range | -20℃～+135℃、200℃（Optional） | -20℃～+135℃ |
| Display Flow Velocity | m/sec、f/sec | m/sec、f/sec |
| Display Volumetric Flow | ㎥、Gullons、US Gullons、ℓ、Barrel | ㎥、Gullons、US Gullons、ℓ、Barrel |
| Output | 0～20mA/4～20mA 0.1%FSOne Pulse/sec MAXUSB/RS232C | 0～20mA/4～20mA 0.1%FSOne Pulse/sec MAX |
| Accuracy | 13mm～75mm±3%（0.2m/sec over）75mm以上 ±0.5%～2%（0.2m/sec over） | 13mm～75mm±3%（0.2m/sec over）75mm以上 ±0.5%～2%（0.2m/sec over） |
PF330
PF220
U2000
DFM5.0
DFS-2
Features
ULTRASONIC SLUDGE BLANKET LEVEL INDICATOR ENV100
It can detect unclear sludge layers in a purifying tank, thickener, etc. with a high degree of accuracy. The sensor is excellent in maintainability and reliability!
- It enables continuous and real-time measurement.
- An economical system is available so that 4 sensors can be connected at the maximum.
- It is provided with a logger that can store 400 days’ data at the maximum.
- Wiring cost can be reduced by the optional wireless system.
- Maintenance loads can be reduced significantly by the automatic cleaning method.
Operating Principles
The propagation time from when an ultrasonic wave transmitted from the sensor reflected on the contamination surface and received again by the sensor is converted into the distance to the contamination surface and then output.
Standard Specification
| CONTROLLER | |
|---|---|
| Application | Single Type |
| Type | ENV100-S |
| Range | 0.35～10m |
| Resolution | 1cm |
| Accuracy | ±0.5% FS or 2.5cm |
| Temperature | -10 ～ +60℃ |
| Nbr of Sensor | 1 |
| Data Storage | 400 days at the maximum |
| Display | Value, Echo, TrendLevel, Distance, Temper,mA, Time |
| Output | 4-20mA 250Ω max.SPDT x 3 （5A 250VAC）RS232C（Standard）RS485 |
| Power | AC100～240V 50/60HzDC20～30V（Option） |
| Power Consumption | Below 6W |
| Enclosure Rating | IP-67 |
| SENSOR | |
| Type | SI-G |
| Material | Main Body：SUS316Transmitting face：PVC＋epoxy |
| Cleaning | built-in nozzle |
| Connection | NPT 3/4 |
| Cable Length | 10m（standard）,300m max. |
| Temperature | -10～+60℃ |
| Enclosure Rating | IP-68 |
ENV100-S/M
ENV100-P
Features
ULTRASONIC SLUDGE DENSITY METER ENV200
It helps with the automation of sludge discharge, the reduction of the amount of polymer used in a dewatering process, and the improvement of efficiency of a thickener purification process!
- It enables continuous and real-time measurement.
- It is equipped with a logger that can store 10,000 data.
- A sensor type suitable for each site can be selected.(Spool piece type, tank installation type, and insertion type)
Operating Principles
Almost all measuring instruments for suspended solid substances are based on a method of processing the attenuation amount of ultrasonic waves through comparison of amplitude variations of the wave receiving signal. When this method is used, the capacity of solid substances in a liquid is kept fixed. Because the pipe shape and flow velocity affect the stability and reliability of measurement, high-precision measurement is impossible.
Our ENV200 type meter increases precision by method of calculating energy with the wave receiving envelope, not by utilizing amplitude variations of the wave receiving signal.
Standard Specification
| CONTROLLER | |||
|---|---|---|---|
| Type | ENV200 | ||
| Measuring Principle | Ultrasonic Attenuation and EEAM(Envelope EnergyAverage Method) | ||
| Measuring Ranges | Standard：2,000～200,000mg/ℓ（0.2～20%）Option：2,000～400,000mg/ℓ（0.2～40%） | ||
| Measuring Mode | Process Mode,Real-time Mode | ||
| Resolution | 100mg/ℓ （0.01%） | ||
| Accuracy | ±5% or ±2,000mg/ℓ whichever is greater | ||
| Repeatability | ±1%（FS） | ||
| Display | Temperature, Humidity, mA, Time, Pipe condition, Flow condition,self-check etc. | ||
| Operational Temperature | -20～+60℃ | ||
| Output | analog | 4-20mA max.750Ω | |
| relay | SPDT x 3, AC250V 5A（ER, R1, R2） | ||
| digital | RS232C, RS485（option） | ||
| Power | AC100～240V 50/60Hz <6W （option：DC24V） | ||
| Enclosure Rating | IP-67 | ||
| SENSOR | |||
| Type | S2-P（Spool Piece type） | S2-T（Tank Mount type） | S2-I（Insertion type） |
| Material | SUS316 | SUS316 | SUS316 |
| Pipe Size | 50～600mm | ||
| Frequency | 1MHz, 500kHz | 1MHz, 500kHz | 1MHz, 500kHz |
| Max. pressure | 10bar | 10bar | 10bar |
| Cable | 10m, 100m max. | 10m, 100m max. | 10m, 100m max. |
| Operational Temperature | -10～60℃ | -10～60℃ | -10～60℃ |
| Enclosure Rating | IP-68 | IP-68 | IP-68 |
| Cleaning | option | ||
Product Lineup
S2-S（spool piece type）
S2-T（tank mount type）
S2-C（Clamp on type
ENV200
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