The ONICON F-2600 series vortex flow meter is a flexible design that provides accurate, reliable flowmeasurement in steam and high temperature water applications. The F-2600 is designed with a two stage all welded bluff body/sensor design that enhances signal sensitivity and extends the operating range of the meter. This innovative feature also protects thesensors from pressure shocks and solids suspendedin the flow stream.
The basic loop powered model provides volumetric flow measurement for water at temperatures up to500° F. Adding the integral temperature sensor optionallows for mass flow measurement of saturated steam.Meters provided with integral pressure and temperature sensors are capable of measuring mass flow of superheated steam. Optional versions of the meter that include serial communications and multiple analog outputs are also available.
Features
- Mass flow measurement from a single instrument
- Optional steam energy flow measurement
- Integral 1,000 W platinum RTD for precise temperature measurement
- Optional pressure transducer for accurate pressure readings at the meter location
- Maintenance free non-moving parts design
- Wear resistant bluff body/sensor design
- Advanced signal processing algorithms ensure stable flow readings and reject noise
- Easy-to-install meter arrives fully programmed and ready to use
Applications
- Saturated steam
- Hot water to 500° F (260° C) standard,750° F (400° C) optional
Applications with optional pressure sensor
- Superheated steam to 500° F (260° C) standard,750° F (400° C) optional
- Compressed air
- Industrial gase
Specifications
| Accuracy | Percent of reading accuracy to within | ± 0.7% for liquids (volumetric) ± 1% for steam and gases (volumetric) ± 1.5% for steam and gases (mass) For Reynolds Number ≥ 10,000 |
| Repeatability | ± 0.2% | |
| Long term stability | ±0.2% over a period of 1 year | |
| Sensing Method | Vortex shedding with integral piezoelectric sensors | |
| Integral 1,000Ω platinum RTD (optional) provides instantaneous temperature | ||
| Integral pressure transducer (optional) provides instantaneous pressure | ||
| Temeperature | Ambient | -40° F (-40° C) to 185° F (85° C) |
| Process | -330° F (-200° C) to 500° F (260° C) | |
| optional high temperature limit 750° F (400° C) | ||
| Maximum Operating Pressure | ≤ Flange rating or 1500 psi (103 bar) | |
| Pressure Loss | Pressure loss varies with meter size and flow rate. | |
| Connection Type | ANSI Class 150, 300 or 600 flanges | |
| Wafer style | ||
| Material | Sensor Body | 316L Stainless Steel |
| Bluff/ Sensor Body | 316L Stainless Steel | |
| Electronic Enclosure | Epoxy painted aluminum | |
| Enclosure | NEMA 4X (IP66) | |
| Input Power Options | Loop Power | 14 – 36 VDC, 22 mA maximum current |
| External DC Power | 18 – 36 VDC, 300 mA maximum current | |
| EExternal AC Power | 100 – 240 VAC 50/60 Hz, 5 W maximum power | |
| Display | 2-line, 16 character alphanumeric LCD with backlighting option. Standard saturated steam display menu provides: mass flow rate, temperature, pressure (calculated), mass total and alarms (if active). | |
| Optional remote mount transmitter version available (Standard cable length 50 ft., maximum 100 ft.) | ||
| Output Signal Provided | DC Loop Powered Version (Standart) | Analog Rate: 2-wire, 4-20 mA Totalization: 2-wire scaled pulse, 50 ms duration, 5 – 36 VDC @ 40 mA maximum Frequency: 2-wire, open collector, 10 kHz maximum, 5 – 36 VDC @ 40 mA maximum Digital: HART® serial communications |
| Optional external DC or AC powered version | Analog Rate: Up to three 2-wire, 4-20 mA outputs Totalization: one 2-wire scaled pulse output, 50 ms duration, 5 – 36 VDC @ 40 mA maximum Frequency: one 2-wire, 10 kHz maximum, 5-36 VDC @ 40 mA maximum Digital: HART® serial communications Alarm: Up to three opto-coupled relay alarm outputs |
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| Optional on DC or AC powered version | MODBUS RTU RS485 or BACnet MS/TP serial communications in place of HART® | |
| Approval | FM/FMC Approvals Class I, Division 1, Groups B, C, & D Class II/III, Division 1, Groups E, F, & G Type 4X and IP66, T6, Ta = -40 to 60°C |
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