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Variable Flow Meter(Rotameter)
- Flowmeters with Photosensor(for Alarm Switches)
MODEL RK1812/RK1814 SERIES - The rotameter products with photosensor
The KOFLOC Flow Meter with Photosensor MODEL RK1812 & RK1814 SERIES are high-grade variable area flow meters with photosensors for alarm output, based on the MODEL RK1200 & RK1400 SERIES, and focusing on precision, reliability and ease-of-use.
KOFLOC Flow Meter with Photosensor MODEL RK1812 & RK1814 SERIES
Quick Review
• KOFLOC RK1400 SERIES High Precision Variable Area Flowmeter
The KOFLOC High Precision Variable Area Flow Meter MODEL RK1400 SERIES employs a flow-tube manufactured with a proprietary glass molding technique and super-precision spherical float. This is a premium variable area flow meter that counters the perception of rotameter as being only good for a rough estimate. The new redesigned MODEL RK1450 SERIES retains all the advantages of RK1400 but in an-all new design package.
• KOFLOC RK1200 SERIES High Precision Variable Area Flowmeter
KOFLOC RK1200 SERIES High Precision Variable Area Flow Meter is a high-grade rotameter especially suited for measurement and control of minute flow, with an industry reputation of being one of the best analog devices. The new redesigned MODEL RK1250 SERIES retains all the advantages of RK1200 but in an-all new design package.
• Photosensor
The KOFLOC Flow Meter with Photosensor MODEL RK1812 & RK1814 SERIES are equipped with a photosensor for detecting float positions at preset levels and thus triggering the alarm output. A light source is a red LED for easy aiming and the indicator lamp can verify its stable operation.
• KOFLOC Dependability
KOFLOC has 60 years of experience in manufacturing precision flow instruments. KOFLOC products, both standard and off-catalog custom items are well received throughout Japan as the name that manifests confidence. KOFLOC, the fluid expert, is the name professionals trust in precision control of minute flow.
• Wide flow range coverage
The KOFLOC Flow Meter with Photosensor MODEL RK1812 & RK1814 SERIES come in 4 sizes of 120, 150, 200 and 250 mm that cover flow ranges from 50 ml/min to 30 l/min.
• Steel/Brass fittings
The fittings are available in either SUS316 stainless steel or brass with respective O-rings of Viton® for SUS316 and NBR for brass fittings. The flow tube is made of Pyrex®.
• Tri-flat & rib-guide flow-tubes
KOFLOC leads the industry in tri-flat flow-tube (for flows between 5 ml/min to 500 ml/min) production with superior precision. The rib-guide flow-tubes are used for medium range flows between 1 l/min and 50 l/min.
The KOFLOC Flow Meter with Photosensor MODEL RK1812 & RK1814 SERIES can only be used for the following gases.
Medium (gases): Actual gas calibration is available for the gas listed
Air, Argon: Ar, Carbon dioxide: CO2, Helium: He, Hydrogen: H2, Nitrogen: N2, Oxygen: O2
N2 equivalent conversion factor (CF) is used for other gases. Contact KOFLOC for the availability of actual gas calibration.
Customization and Optional services• Optional flow-tubes with ±1% accuracy
• Optional dual scale tube for measuring 2 different gases
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• KOFLOC RK1400 SERIES High Precision Variable Area Flowmeter
The KOFLOC High Precision Variable Area Flow Meter MODEL RK1400 SERIES employs a flow-tube manufactured with a proprietary glass molding technique and super-precision spherical float. This is a premium variable area flow meter that counters the perception of rotameter as being only good for a rough estimate. The new redesigned MODEL RK1450 SERIES retains all the advantages of RK1400 but in an-all new design package.
• KOFLOC RK1200 SERIES High Precision Variable Area Flowmeter
KOFLOC RK1200 SERIES High Precision Variable Area Flow Meter is a high-grade rotameter especially suited for measurement and control of minute flow, with an industry reputation of being one of the best analog devices. The new redesigned MODEL RK1250 SERIES retains all the advantages of RK1200 but in an-all new design package.
• Photosensor
The KOFLOC Flow Meter with Photosensor MODEL RK1812 & RK1814 SERIES are equipped with a photosensor for detecting float positions at preset levels and thus triggering the alarm output. A light source is a red LED for easy aiming and the indicator lamp can verify its stable operation.
• KOFLOC Dependability
KOFLOC has 60 years of experience in manufacturing precision flow instruments. KOFLOC products, both standard and off-catalog custom items are well received throughout Japan as the name that manifests confidence. KOFLOC, the fluid expert, is the name professionals trust in precision control of minute flow.
• Wide flow range coverage
The KOFLOC Flow Meter with Photosensor MODEL RK1812 & RK1814 SERIES come in 4 sizes of 120, 150, 200 and 250 mm that cover flow ranges from 50 ml/min to 30 l/min.
• Steel/Brass fittings
The fittings are available in either SUS316 stainless steel or brass with respective O-rings of Viton® for SUS316 and NBR for brass fittings. The flow tube is made of Pyrex®.
• Tri-flat & rib-guide flow-tubes
KOFLOC leads the industry in tri-flat flow-tube (for flows between 5 ml/min to 500 ml/min) production with superior precision. The rib-guide flow-tubes are used for medium range flows between 1 l/min and 50 l/min.
The KOFLOC Flow Meter with Photosensor MODEL RK1812 & RK1814 SERIES can only be used for the following gases.
Medium (gases): Actual gas calibration is available for the gas listed
Air, Argon: Ar, Carbon dioxide: CO2, Helium: He, Hydrogen: H2, Nitrogen: N2, Oxygen: O2
N2 equivalent conversion factor (CF) is used for other gases. Contact KOFLOC for the availability of actual gas calibration.
Customization and Optional services• Optional flow-tubes with ±1% accuracy
• Optional dual scale tube for measuring 2 different gases
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♦ High-performance
♦ Precision needle valve
♦ Numerous variants and custom models
♦ Alarm output
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♦ Precision needle valve
♦ Numerous variants and custom models
♦ Alarm output
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Standard Specifications
| Rated flow range | See the specifications for the RK1200/RK1400. Measurement of flows below 50ml/min is not available(air at atmospheric pressure condition). |
|---|---|
| Setting range | 10-90% |
| Ambient temperature | 5-55°C |
Photosenser Specifications
| Operating power supply | 24VDC±10% |
|---|---|
| Power consumption | Light projector:15mA or less ;Light receiver:22mA or less |
| Output mode | NPN open collector,sink current:8-mA(30VDC)max. |
| Running mode | Light on |
| Response time | 0.5 msec or less |
| Cord | Light projector:0.15-m㎡ two-core cable(2m); Light receiver:0.15-m㎡ two-core cable(2m) |
| Manufacturer | Takenaka Electronics,Ltd. |
| Type | UM-T15TV(24VDC)photoelectric switch containing amplifier with repeater dial on the receiver side |
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