TTFM 6.1 Transit-Time Flow Meter
The TTFM 6.1 Transit-Time Flow Meter from Pulsar Measurement accurately measures the flow rate of fluids in full pipes. This clamp-on, ultrasonic flow meter measures flow from outside a pipe with no contact with process fluid. It is easy to install and shutdown-free. Configuration is simple and a calibration certificate included.
Contact Van WaltAdvantages
- Non-invasive flow measurement of “clean” fluids like water and chemicals
- Different sizes available to measure 15 mm to 1,200 mm pipe diameters
- Intuitive, quick setup menu for easy installation
- Works on all common pipe materials
- Interchangeable clamp-on transducers
- Standard mounting hardware
- Ideal for retrofits and new installations
- No moving parts, so little-to-no maintenance required
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TTFM 6.1 Transit-Time Flow Meter Equipment Options:
Applications
- Treated water
- Raw water
- Cooling water
- Chemicals
- DI/RO water
Specifications
General Specifications
Operating Parameters
For clean liquids in full pipes with less than 2% solids or gas bubbles
Programming
Built-in, 5-button keypad with English, French, and Spanish menu language selection
Electronics Enclosure
NEMA4X (IP 66) polycarbonate with clear, shatterproof cover
Flow Velocity Range
±0.02 m/s to 12.2 m/s (±0.07 ft/s to 40 ft/s)
Accuracy
±1% of reading from 0.46 m/s to 12.2 m/s (1.5 ft/s to 40 ft/s); ±0.0046 m/s (±0.015 ft/s) for velocities below 0.46 m/s (1.5 ft/s)
Repeatability & Linearity: ±0.25%
Repeatability & Linearity: ±0.25%
Display
White, backlit matrix – displays 5-digit flow rate with floating decimal, 14-digit totalizer, relay status, operating mode, and calibration menu
Power Input
100-240 V AC 50/60 Hz, 10 VA maximum
Optional: 9-32 V DC, 10 W maximum
Optional: 9-32 V DC, 10 W maximum
Analog Output
Isolated 4-20mA, 0-5 V, 1 kΩ load maximum
Control Relays
2 Relays, form ‘C’ dry contacts rated 5 A SPDT; programmable flow alarm and/or flow proportional pulse
Optional: 4 additional (6 total), rated 5 A SPDT
Optional: 4 additional (6 total), rated 5 A SPDT
Data Logger
Built-in 128 MB data logger with a USB output and Windows software. Capacity for approximately 26 million data points
Operating Temperature (Electronics)
-20 °C to 60 °C (-5 °F to 140 °F)
Approximate Shipping Weight
5.5 kg (12 lbs)
Sensor Specifications
Pipe Diameter (Recommended)
SE16A: 15 mm to 40 mm (0.5 in to 1.5 in)
SE16B: 50 mm to 250 mm (2 in to 10 in)
SE16C: 300 mm to 1,200 mm (12 in to 48 in)
SE16B: 50 mm to 250 mm (2 in to 10 in)
SE16C: 300 mm to 1,200 mm (12 in to 48 in)
Pipe Diameter (Suitable For)
SE16A: 15 mm to 150 mm (0.5 in to 6 in)
SE16B: 50 mm to 1,200 mm (2 in to 48 in)
SE16C: 100 mm to 1,200 mm (4 in to 48 in)
SE16B: 50 mm to 1,200 mm (2 in to 48 in)
SE16C: 100 mm to 1,200 mm (4 in to 48 in)
Pipe Materials
Any metal or plastic sonic conducting material including carbon steel, stainless steel, ductile iron, concrete-lined ductile iron, cast iron, PVC, HDPE, PVDF, fiberglass, copper, brass, aluminum, and pipes with bonded liners including epoxy, rubber, and Teflon
Operating Frequency
SE16A: 2.56 MHz
SE16B: 1.28 MHz
SE16C: 640 kHz
SE16B: 1.28 MHz
SE16C: 640 kHz
Operating Temperature
-40 °C to 150 °C (-40 °F to 300 °F)
Transducer Mounting Kit
SE16A: Includes stainless steel track with pipe clamps, built-in ruler, and coupling tape
SE16B: Includes a set of stainless steel transducer brackets, clamps, alignment bar, and coupling tape
SE16C: Includes set of stainless steel transducer brackets, clamps, alignment bar with a built-in ruler, and coupling tape
SE16B: Includes a set of stainless steel transducer brackets, clamps, alignment bar, and coupling tape
SE16C: Includes set of stainless steel transducer brackets, clamps, alignment bar with a built-in ruler, and coupling tape
Transducer Cables
Triaxial, 7.6 m (25 ft) with BNC connectors and seal jackets; extendable up to 152.4 m (500 ft)
Hazardous Locations
Non-incendive for Class I, Div 2, Groups A, B, C, D
Optional: Intrinsically safe for Class I, Div 1, Groups C, D; Class II, Groups E, F, G; Class III; Encl. Type 4
Optional: Intrinsically safe for Class I, Div 1, Groups C, D; Class II, Groups E, F, G; Class III; Encl. Type 4
Options
Options
Sensor Variations (Recommended pipe diameters)
SE16A: 15 mm to 40 mm (0.5 in to 1.5 in)
SE16B: 50 mm to 250 mm (2 in to 10 in)
SE16C: 300 mm to 1,200 mm (12 in to 48 in)
SE16B: 50 mm to 250 mm (2 in to 10 in)
SE16C: 300 mm to 1,200 mm (12 in to 48 in)
Industrial Automation Protocols
Modbus RTU via RS-485 or HART (field selectable)
Transducer Cables
15.2 m (50 ft) triaxial with BNC connectors and seal jackets
30.5 m (100 ft) triaxial with BNC connectors and seal jackets
30.5 m (100 ft) triaxial with BNC connectors and seal jackets
Enclosure Heater
Thermostatically controlled to -40 °C (-40 °F); recommended for temperatures below 0 °C (32 °F)
Sunscreen
Enclosure sunscreen for outdoor installations
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