Greyline SFM | Doppler

The Greyline SFM 6.1 Ultrasonic Slurry Flow Meter was specifically developed for the slurry applications found in today’s industrial facilities. The Greyline SFM 6.1 non-contacting flow monitoring is specifically designed for limestone slurry, fly ash slurry, gypsum slurry, and many others.

There is no need to shut down your flow or cut into the pipe. The Greyline SFM 6.1 clamp-on ultrasonic sensor mounts on the outside of a variety of pipe materials 12.7 mm (0.5 in) in diameter or larger. The Greyline SFM 6.1 sends an ultrasonic signal into the pipe and measures acoustic reflections off solids and gas bubbles suspended in the slurry. It takes just a few minutes to install. There is no need to shut down the flow.

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Rugged NEMA4 Enclosure
Backlit LCD
Simple 5-Key Calibration
Password Protected
4-20mA / 0-5 V Output
128 MB Data Logger
MODBUS RTU or HART Optional

General Specifications
Spec name:	Description:
Flow Rate Range	±0.03 m/s to 12.2 m/s (±0.1 ft/s to 40 ft/s) in most applications
Pipe Size	Any pipe ID from 12.7 mm to 4.5 m (0.5 in to 180 in)
Accuracy	±2% of reading or 0.03 m/s (0.1 ft/s). Requires solids or bubbles minimum size of 100 microns, minimum concentration 75 ppm. Repeatability: ±0.1%, Linearity ±0.5%
Display	White, back-lit matrix - displays flow rate, totalizer, relay states, 16-digit totalizer, operating mode, and calibration menu
Calibration	Built-in 5-key calibrator with English, French, or Spanish language selection
Power Input	100-240 V AC 50/60 Hz, (see Options) 2.4-5.6 W depending on options
Outputs	Isolated 4-20mA, 1000 ohms max load
Control Relays	2 Relays rated 5 amp SPDT; programmable flow alarm and/or proportional pulse
Enclosure	NEMA4 Stainless steel with window
Operating Temperature (Electronics):	-23 °C to 60 °C (-10 °F to 140 °F)
Sensitivity	Adjustable. Damping: adjustable
Electrical Surge Protection	Sensor, 4-20mA output, and AC power input
Approximate Shipping Weight	10 kg (21 lbs)

Sensor Specifications
Spec name:	Description:
Model SE4	Single-head ultrasonic. Designed to withstand accidental submersion to 10 psi. Certified non-incendive for Class 1 Div 2, Groups A, B, C, D hazardous locations
Operating Temperature	-15 °C to 80 °C (5 °F to 175 °F)
Sensor Cable	6 m (20 ft) shielded cable
Sensor Mounting	Stainless steel mounting kit for pipes 12.7 mm (0.5 in) ID or larger

Options
Options:	Description:
Sensors	Intrinsic Safety Barriers for Sensor mounting in Class 1 Div 1 hazardous locations
Sensor Cable	15 m (50 ft) or 30 m (100 ft), continuous shielded coaxial pair, or splice up to a total of 152 m (500 ft) with Junction Box. Self tunes to extended cable.
Enclosure Heater	For outdoor installation, 16 W thermostatically controlled to -40 °C (-40 °F)
Data Logger	Built-in 2 million point logger with a USB output and Windows software
Power Input	9-32 V DC, 2.1 W to 4.95 W depending on options
Control Relays	4 additional (6 total) rated 5 A SPDT

SFM 6.1

Product Brochures

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Greyline Logger

Software Brochure

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SFM 6.1

Datasheet

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SFM 6.1

Order Form

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Greyline Logger Software

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Sand slurry flow monitoring

CanFrac Sands Ltd. of Lloydminster Saskatchewan (Canada) needed a flowmeter that could accurately measure sand slurry flow without being damaged by this highly abrasive product. They selected the Greyline DFM Doppler Flow Meter with a clamp-on ultrasonic sensor mounted on the outside of a pipe

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Sensor

Single-head ultrasonic. Designed to withstand accidental submersion to 10 psi. Certified non-incendive for Class 1 Div 2, Groups A, B, C, D hazardous locations