The TTFM 6.1 Transit-Time Flow Meter is ideal for water and wastewater, chemicals, hydraulic oil, low-conductivity water, water/glycol solutions, and diesel and fuel oils. The unit works by measuring the time-of-flight difference for ultrasonic sound pulses transmitted from one transducer to another. The time between transmitted and received signals is measured by the flow meter. Mount the TTFM 6.1 Transit-Time Flow Meter ultrasonic transducers on the outside of a pipe and use the built-in 5-button keypad to enter the pipe material, outer diameter, wall thickness, and fluid type. The TTFM 6.1 will display the correct transducer separation distance and mounting method.
With the TTFM 6.1 Transit-Time Flow Meter, you never need to be an expert in non-contacting flow measurement to get the best results in your application. Let us help you accurately measure the flow rate of relatively clean, non-aerated fluids in full pipes.
Independently MCERTS Approved
The TTFM 6.1is MCERTS certified (CSA MC250372/00) for Class 2 accuracy with the combined performance characteristics as follows:
TTFM 6.1 (AC) is 4.88% (Class 2)
TTFM 6.1 (DC) is 4.87% (Class 2)
Certification Range:
Velocity: 0.1m/s to 5m/s
Size: DN15 to DN200
Easy to Choose
With only three easy-to-select transducer sizes that work on all common pipe materials and options tailored to fit your application, the TTFM 6.1 is the easiest choice to specify for your next clean-liquid flow application.
Easy to Use and Maintain
With interchangeable clamp-on transducers, standard mounting hardware, and a quick setup menu, installation is quick and shutdown-free. Perfect for both retrofits and new installations. With no moving parts, there is little to no maintenance required, and with solid-state components, there is no drift in performance over time, ensuring accuracy and peace of mind.
Easy Assistance Anywhere
With real-time sales and application support directly from Pulsar Measurement, world-class assistance is just a phone call away. For applications that require periodic recalibration, we're ready to support you with our cost-conscious calibration services and fast turnaround service.
Great things come in threes; the meter made to make your life easy.
- Three easy-to-select transducer options covering 15 mm to 1,200 mm nominal pipe diameters.
- Transducers work on all common pipe materials.
- Standard mounting hardware makes novice installers look like experts.
- Transducers simply strap to the outside of the pipe, meaning no wear and tear, and no shutdown to install.
- Easy-to-contact and knowledgeable staff is here to help you before, during, and after installation.
- Analog, pulse, and serial communication options to meet your specific application needs.
- Standard 26 million point data logger and free Logging Software make data management and reporting fast and easy.
- All transducers are approved for use in hazardous locations.
| General Specifications | |
|---|---|
| Spec: | Description: |
| 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% |
| 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 |
| 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 |
| 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 | |
|---|---|
| Spec name: | Description: |
| Pipe Diameter (Recommended) | SE16A:Â 15 mm to 40 mm (0.5 in to 1.5 in) SE16B:Â 50 mm to 250 mm (2 in to 10 in) SE16C:Â 300 mm to 1,200 mm (12 in to 48 in) |
| Pipe Diameter (Suitable For) | SE16A:Â 15 mm to 150 mm (0.5 in to 6 in) SE16B:Â 50 mm to 1,200 mm (2 in to 48 in) SE16C:Â 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:Â 2.56 MHz SE16B:Â 1.28 MHz SE16C:Â 640 kHz |
| Operating Temperature | -40 °C to 150 °C (-40 °F to 300 °F) |
| Transducer Mounting Kit | SE16A:Â Includes stainless steel track with pipe clamps, built-in ruler, and coupling tape SE16B:Â Includes a set of stainless steel transducer brackets, clamps, alignment bar, and coupling tape SE16C:Â 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 | Certified Non-incendive for Class I, Div 2, Groups A, B, C, D |
| Options | |
|---|---|
| Options: | Description: |
| Sensor Variations (Recommended pipe diameters) | SE16A:Â 15 mm to 40 mm (0.5 in to 1.5 in) SE16B:Â 50 mm to 250 mm (2 in to 10 in) SE16C:Â 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 |
| Enclosure Heater | Thermostatically controlled to -40 °C (-40 °F); recommended for temperatures below 0 °C (32 °F) |
| Sunscreen | Enclosure sunscreen for outdoor installations |
| Summerheights Golf Links Ontario, get efficient control over water pumped to sprinkler system | Download |
| The town of Browns Valley, California improves flow measurement accuracy to local farmers with the TTFM 6.1. | Download |
| TTFM 6.1 units measure water flow at a chiller plant for a shopping center in Putrajaya, Malaysia. | Download |
| Flow Measurement in the Food and Beverage Industry | Download |
| Transit-time flow measurement on a Ductile Iron pipe at a Virginia wastewater treatment plant. | Download |
| TFM 6.1 provides pipe flow measurement for laboratory water usage monitoring | Download |
| TTFM 6.1 MCERTS Certification CSA MC250372/00 | Download |
| Product Brochure | Download |
| Datasheet | Download |
| Order Form | Download |
| Installation & Instruction Manual | Download |
| Serial Communications Manual | Download |
| Engineering Specifications | Download |
| Pulsar Logger v3.0.0 Software (Formerly Greyline Logger) | Download |
| Software Brochure | Download |
| CE Declaration of Conformity | Download |
| North America Electrical Safety Certificate | Download |
| ATEX Certification | Download |
| IECEx Certificate | Download |
| North America Haz Loc Certificate | Download |
| Doppler and Transit Time for non-invasive measurement of flow in full pipes. | Download |
| Datasheet | Download |
| Datasheet | Download |
| Datasheet | Download |
| Datasheet | Download |
| Case Study | TTFM & DFM provide accurate flow solutions at a wastewater treatment plant. | Download |
| Case Study | Providing Graniterock with non-contacting flow measurement for clean water and flow from their thickener plant. | Download |
| Pulsar Measurement Product Warranty | Download |
MCERTS
MCERTS certified Class 2 accuracy CSA MC250372/00
Electronics
- CE
- CSA/EN/UL 61010-1
Transducers
-
Certified Non-incendive for Class I, Div 2, Groups A, B, C, D
Optional: Certified Intrinsically safe for Class I, Div 1, Groups C, D; Class II, Groups E, F, G; Class III; Encl. Type 4
Optional: Certified Intrinsically safe for sensor mounting in ATEX.IECEx Zone 0, Ex ia IIB T4 Ga, hazardous location
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