Vacuum Generator, Unitasking
Vacuum Generator VLS
Suction Flow Rate(Nozzle Diameter):100L/min[ANR] (φ2.0 mm), 150L/min[ANR](φ2.5 mm), 200L/min[ANR](φ2.8 mm).
Advantages
Suction Flow Rate(Nozzle Diameter):100L/min[ANR] (φ2.0 mm), 150L/min[ANR](φ2.5 mm), 200L/min[ANR](φ2.8 mm).
Square aluminum body.
Adopted a cylindrical silencer with excellent silencing effect.
Suction Flow Rate(Nozzle Diameter):100L/min[ANR] (φ2.0 mm), 150L/min[ANR](φ2.5 mm), 200L/min[ANR](φ2.8 mm).
The lineup also includes those with pressure gauges and sensors..
Specifications
Fluid medium | Air, inert gas |
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Operating pressure range | 0.15~0.7MPa |
Rated supply pressure | 0.5MPa |
Operating temp. range | 0~60℃(No freezing) |
Spec. of Digital pressure gauge
type | GPD-V-01 | ||
---|---|---|---|
Rated pressure range | -101~0kPa | ||
Pressure display range | -101~10kPa(*1) | ||
Proof pressure | 300kPa | ||
Fluid medium | Air, non-corrosive/non-flammable gas | ||
Battery | CR2032 Lithium Battery | ||
Battery life | approx. 3 years (5 times per day) | ||
Low-power indicator | Yes | ||
Battery replacement | Yes | ||
Turn-on interval | Display turn off after 60 sec. | ||
Sampling rate | 2Hz (2 times/sec.) | ||
Repeatability | ≦±1%F.S. ±1 digit | ||
LCD display | 7 segments, 3.5 digit | ||
Indicator accuracy | ≦±2%F.S. ±1 digit (ambient temperature at 25±3°C) | ||
Protective structure | IP65 (*2) | ||
Ambient temp. range | operation | 0~50℃C | storage:-10~60℃(No dew condensation, no freezing). |
Ambient humidity range | Operation / Storage:35~85%RH (No dew condensation). | ||
Vibration proof | Total amplitude 1.5mm or 100m/s2, 10Hz~55Hz~10Hz for 1 minute, 2 hours in each direction of X, Y and Z | ||
Shock resistance | 100m/s2 | ||
Temperature characteristic | ±2%F.S. of detected pressure (at 25°C). |
Pressure sensor spec.
Type | VUS-32R |
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Rated pressure range | -100.0~100kPa |
Proof pressure | 300kPa |
Fluid medium | Air, non-corrosive/non-flammable gas |
Power Supply | 12VDC~24VDC (Ripple±10% or less) |
Current consumption | 40 mA or less (without load) |
Switch output type | NPN Open Collector Output/PNP Open Collector Output |
Switch Max. load current | 125 mA |
Switch output Max. supply voltage | 30VDC (NPN Open Collector Output)/24VDC (PNP Open Collector Output) |
Switch output residual voltage | 1.5V or less. |
Repeatability | ±0.2%F.S. ±1 digit or less |
Hysteresis One point set mode | adjustable (*) |
Hysteresis mode | adjustable (*) |
Hysteresis Wind comparator mode | adjustable (*) |
Response time | 2.5ms or less (Malfunction protection function:Selection from 25ms, 100ms, 250ms, 500ms, 1000ms, 1500ms) |
Overload protection | Equipped |
Digital display | 3 colors (red, green, orange) (display frequency:5 times/second) |
Display accuracy | ±2%F.S. ±1 digit or less (at Ta=25±3℃) |
Operation indicator | Orange 1 & 2 indicator lamps |
Analog output (voltage output) | Output voltage:1~5V±2.5%F.S. Output voltage: 1~5V±2%F.S. or less (within rated pressure range), Linearity: ±1%F.S. or less, Output impedance 1kΩ |
Environment proof Protective structure | IP40 |
Environment proof Ambient temp. range | Operation:0~50°C, Storage:-10~60°C (No dew condensation or freezing) |
Environment proof Ambient humidity range Operation/Storage:35~85%RH (No dew condensation) | |
Environment proof Voltage proof | AC1000V 1 min. (Between the lead wire and the case) |
Environment proof Insulation proof | Over 50MΩ (DC500V) (Between the lead wire and the case) |
Environment proof Vibration resistance | Total amplitude 1.5mm or 100m/s2 10Hz~150Hz~10Hz scan for 1 min., 2 hours in each direction of X, Y and Z. |
Environment proof Shock resistance | 100m/s2, 3 times each in direction of X, Y and Z |
Temperature characteristics | Max. ±2%F.S.(at Ta=25℃, at temp. range 0~ +50℃) |
Cable spec. | Oil proof cable (0.15mm2) |
Port size
Vacuum port
Thread size
Taper thread (female) | Rc1/2 |
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Air supply port
Thread size
Taper thread (female) | Rc1/2 |
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Vacuum Characteristic Graph
Construction
Type & Price list
Detailed Safety Instructions
Frequently Asked Questions for Vacuum Generator, Unitasking Series
Minimum operational differential pressure of Check Valve (CV, CVP series) is less than 0.001Mpa(10kPa) and it is possible to use for negative pressure.
But Check Valve tolerate leak so that it should not be used for the application with which complete air tightness is required.
Using Check Valve is not suitable for retaining for long period of time. Short period of time is the premise to install Check Valve. Also be aware of Minimum checking differential pressure.
Fluid medium is limited to air in principle.
But there are some cases which suck oil and other liquid by supply air flow in case of ring blower type vacuum generator (VRL). Exhaust air is mixed with oil and becomes nebulized at exhaust port.
"Tube exhaust type" which does not exhaust air and installing a silencer are recommended.
However, be aware when smooth plumbing without resistance is not carried out such as with too long tube to exhaust, it becomes resistance to exhaust and impair the vacuum degree.
The vacuum characteristic of each type is different.
【H type】
High-vacuum type (Rated supply pressure* : 0.5Mpa)
【L type】
Large-flow type (Rated supply pressure* : 0.5Mpa)
【E type】
High-vacuum at low air pressure supply type (Rated supply pressure* : 0.35Mpa)
For high-vacuum, H type, to provide large-suction flow, L type, and to save supply air, E type is recommended respectively. (Details of final vacuum and suction flow are determined by choice of the nozzle diameter.
*)
What is rated supply pressure?
Rated supply pressure guarantees product performance under the designated conditions and is also the supply pressure, which a vacuum generator supplies, of basis to design and use. The ultimate vacuum reaches to the max. around the rated supply pressure value.
The following graph shows the case of H type. The ultimate vacuum is the highest near 0.5Mpa. (ex. Simple vacuum generator VHH07 (Nozzle dia. 07: ø0.7mm)
When the product performance is reduced, the followings can be the causes.
Please check the product in terms of these points.
1) Check the supply air
Please check if the supply air flow volume and the air pressure are sufficient.
2) Check the nozzle clogging
When foreign substances are clogged in the nozzle, do flushing to clean it.
3)Clogging of the vacuum filter on sucking side or the silencer on the exhaust side.
When a filter is clogged, replace it with new one.
Rated supply pressure of Vacuum Generator is designated according to the vacuum characteristics (H, L and E type) respectively.
This rated supply pressure is required air pressure to start operating Vacuum Generator. When the supply air pressure is under the rated supply pressure, abnormal sound may be caused by some particular supply pressure.
During abnormal sound is being generated, the vacuum characteristics may become unstable and cause troubles such as influencing pressure detection by a sensor. Reset the product to keep the supply pressure satisfying the rated supply pressure in that case. ( Product spec. is the value in operation of Vacuum Generator.)
There are two ways of measuring pressure, absolute pressure and gauge pressure.
Absolute pressure
Absolute pressure is zero-referenced against a perfect vacuum.
It is commonly used to measure flow rate.
When indicated, "abs" is inserted following the unit, for example 10 kPa abs.
Gauge pressure
Gauge pressure is zero-referenced against ambient air pressure.
It indicate how much pressure per 1cm2 is against the ambient air pressure. It is commonly used for indication of manometer. When the pressure is over the ambient air pressure, it is called "positive pressure" and when it is under the ambient air pressure, it is called "negative pressure."
Inquiries about this product
It is also possible to suggest products suitable for various conditions such as applications and functions. Please feel free to contact us or visit the nearest sales office.
The following are frequently asked questions. Please check before making inquiries.