Insertion Metal Magmeter

FMG-550 Series

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Hot-Tap Version for Installation and Service Without System Shutdown
Diagnostic Features Using Colored LED Lights
Optional Detachable Waterproof Cable
Output Choices of Frequency or 4 to 20 Ma
Bi-Directional Flow and Empty Pipe Detection
No Moving Sensor Parts
Adjustable Insertion for Large Pipe Sizes up to DN 1200 mm (48")
Flow Rate Range 0.05 to 10 m/s (0.15 to 33 ft/s)
Measurement in Dirty and High-Solid Content Liquids

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Description

The FMG-550 Series magmeter flow sensors are heavy-duty, high-performance sensors in an adjustable, insertion configuration that can be used with a ball valve for hot-tap installations. This insertion-style flow sensor has no moving parts and is constructed of corrosion-resistant materials to provide long-term reliability with minimal maintenance costs.

The FMG-550 Series is versatile and simple-to-install, delivering reliable flow measurement over a wide dynamic range. Pipe sizes range from 2 to 48". Omega’s FMG-550 magmeters offer frequency or current outputs. The blind transmitter (4 to 20 mA output) is available for long distance signal transmission. The empty pipe detection features a zero flow output when the electrodes are not completely wetted. The frequency output is bi-directional while the 4 to 20 mA output can be set for uni- or bi-directional flow. The 4 to 20 mA output is factory spanned. Other factory configurations available, see "Notes" below for ordering instructions.

SPECIFICATIONS
Wetted Materials: 316 L stainless steel body and electrodes, PVDF insulator, O-rings (FPM standard), 4-conductor shielded cable, PVC jacket (fixed cable models) or watertight rubber cable with connector on “-SUB” models
Power: 4 to 20 mA (24 Vdc nominal, 21.6 to 26.4 Vdc max, 22.1 mA maximum), frequency (5 to 24 Vdc nominal, 5 to 26.4 Vdc max, 15 mA max), reverse polarity and short circuit protected pipe size of DN50 to DN1200 (2 to 48")
Flow Range: 0.05 m/s (0.15 ft/s) min, 10 m/s (33 ft/s) max
Linearity: ±1% reading + 0.01 m/s (±1% reading + 0.033 ft/s)
Repeatability: ±0.5% of rdg @ 25°C
Minimum Conductivity: 20 µS/cm
Accuracy: <±2% of measured value in reference conditions where the fluid is water at ambient temperature, the appropriate upstream and downstream distances are observed, the sensor is inserted at the correct depth, and there is a fully developed flow profile which is in compliance to ISO 7145-1982 (BS 1042 section 2.2).
Electrical Current Output: 4 to 20 mA, programmable and reversible, loop
Accuracy: 32 µA max error (at 25°C @ 24 Vdc)
Temperature Drift: ±1 µA per °C max
Power Supply Rejection: ±1 µA per V
Isolation: Low voltage <48 Vac/dc from electrodes and auxiliary power
Maximum Cable: 300 m (1000')
Maximum Loop Resistance: 300 Ω
Error Condition: 22.1 mA frequency output
Maximum Pull-up Voltage: 30 Vdc
Short-Circuit Protected: <30 V @ 0 Ω pull-up for 1 hour, reverse polarity protected to -40 V for 1 hour, over-voltage protected to 40 V for 1 hour
Maximum Current Sink: 50 mA, current limited Temperature/Pressure Ratings
Storage Temperature: -15 to 70°C (5 to 158°F) in non-icing conditions Operating Temperature Ambient: -15 to 70°C (5 to 158°F) in non-icing conditions
Media: -15 to 85°C (5 to 185°F)
Maximum Operating Pressure: 20.7 bar @ 25°C (300 psi @ 77°F)
Hot-Tap Installation Requirements:
    Maximum Installation Pressure: 20.7 bar (300 psi)
    Maximum Installation Temperature: 40°C (104°F) Hot-tap installation at temperatures that are greater than 40°C (104°F) or with hazardous liquids are not permitted with this product.
    Connector: NEMA 6P (IP68)
    EN 61326: Immunity and emissions for control equipment

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Part Number/Desc.

Qty

Description

FMG-553

SGD3,960.00

Availability: 1 week

Magmeter 9.3" hot tap, frequency output

FMG-554

SGD4,015.00

Availability: 1 week

**Magmeter 9.3" hot tap, 4 to 20 mA output

FMG-554-SUB

SGD4,245.00

Availability: 7 weeks

**Magmeter 9.3" hot tap, 4 to 20 mA output, with water tight connections

Accessory

FMG-550-S-CABLE

SGD397.00

Availability: 9 weeks

4 conductor, 22 AWG, water tight connector, 6 m (19.5')

† All prices on this site are shown in Singapore Dollars.
Note: Comes complete with operator’s manual, alignment rod, hex wrench, clamp rings and ruler.

Cable sold separately.

** Custom scaling is available, add suffix "-SCALED-******-I.D.*****" to part number; add $165 to price and two weeks to the standard lead time. Please replace the asterisks with the range and the pipe I.D. Consult Flow Engineering if you have any questions on ordering.

Ordering Example: (1) DPF64 METER W/2 10A SPDT RELAYS, SGD711.55