The DF868 is a Transit-Time flowmeter with MCERTS-certification and provides a non-invasive flow monitoring solution for permanent applications, with drift-free measurement in ultraclean and most "dirty" fluids. Fluids with some gas bubbles can be measured, along with entrained solids that previously required Doppler-style meters.
The DF868 ultrasonic liquid flowmeter uses economical non-intrusive flow measurement with hazardous area certification. Set up is simple, and suitable on a wide variety of pipe sizes or materials (including metal, plastic and concrete-lined pipes). There is a large, LCD backlit display which illustrates velocity, volumetric and energy flow rates, as well as totalized flow or trend data.
As an option, the DF868 can also come as dual-channel or dual-path models that can be user-configured. This means that it can be set up to measure flow in two separate pipes with one meter - making the DF868 practical, versatile and cost-effective. The DF868 is also highly accurate, particularly as two sets of transducers can be installed onto the same pipe. This has the effect of reducing flow profile distortions, flow swirl and cross flow. Special small-pipe clamping fixtures can be used, with miniature transducers, to facilitate flow measurements on pipes from 0.5-2 inches. You can also add up to 12 isolated 4-20mA outputs, up to 6 hermetically sealed or standard alarm relays, and up to 12 frequency / totalizer outputs.
The Panametrics DF868 Liquid Flowmeter is now MCERTS certified meeting the Environment Agency's performance requirements. View downloads for certificate.
Manufactured by: Panametrics
Model: Panametrics DF868 Liquid Flowmeter
Water and wastewater (MCERTS)
Ultrapure water and liquids
Cooling and heating water
|Flow Range||-40 to 40 ft/s (-12.2 to 12.2 m/s)|
|Typical Clamp-On Flow Accuracy||- Pipe ID>6 in (150 mm): ±1% to 2% of reading
- Pipe ID<6 in (150 mm): ±2% to 5% of reading
|Typical Wetted Flow Accuracy||±1% of reading|
|Typical Wetted Flow Accuracy||
- 0.75 to 12 in (20 to 300 mm) with
|Pipe Sizes||- Using clamp-on transducers: 0.5 to 300 in (12.7 mm to 7.6 m) and larger
- Using wetted transducers: 1 to 200 in (25.4 mm to 5 m) and larger
|Pipe Wall Thickness||
Up to 3 in (76.2 mm)
All metals and most plastics. Consult RS Hydro for concrete, composite materials, and highly corroded or lined pipes
|-4°F to 131°F (-20°C to 55°C)|
|Standard: -40°F to 302°F (-40°C to 150°C)
Optional: -328°F to 752°F (-200°C to 400°C)
|Channels||Standard: One channel
Optional: Two channels (for two pipes or two-path averaging)
|Standard Inputs/ Outputs||Two 0/4 to 20 mA isolated outputs, 550 W maximum load
Namur NE043 compliant
|Power Supplies|| Standard: 100 to 130 VAC, 50/60 Hz or 200 to 265 VAC, 50/60 Hz
Optional: 12 to 28 VDC, ±5
|Dimensions|| (h x w x d) 14.24 in x 11.4 in x 5.1 in
(362 mm x 290 mm x 130 mm)
|Weight||11 lb (5 kg)|