D348D Plus Ultrasonic Flowmeter
Multipath Ultrasonic Flowmeter
Applications and measurement
Water supply, circulation cooling water, sewage treatment and power-plant circulation water. Published examples include DN800 water supply and DN1000 cooling-water installations.
Multipath transit-time measurement for principally clean liquids, with tolerance for small amounts of air bubbles or suspended solids found in industrial environments. The Plus adds Wi-Fi, a 4.7-inch colour display, TF-card logging and an internally configured batch controller. Spool pieces cover 100–600 mm, with larger sizes customised; the general insertion range is 100–5000 mm, subject to the selected transducer.
About D348D Plus
The Model D348D Plus Ultrasonic Flowmeter is a universal transit-time flowmeter designed using ARM COMA technology and low-voltage broadband pulse transmission.
- ARM COMA chip with low power consumption, high reliability and anti-jamming capability.
- User-friendly menus for pipe range, material, wall thickness and output signals; British and Metric measurement units.
- TF card storage for 512 files; the introduction describes a time interval within 1 second.
- Positive, negative and net flow totalizers with scale factor and 7-digit display. Internally configured batch controller.
Application and Installation Guidance
Measurement location
Select a measurement site where the fluid flow profile is fully developed for highly accurate measurement.
Choose a pipe section that is always full of liquid, such as a vertical pipe with upward flow or a full horizontal pipe.
Provide at least the straight upstream and downstream lengths shown for the transducer installation.
Ensure the pipe surface temperature at the measuring point is within the transducer temperature limits.
Check the pipe interior carefully; where possible, choose a section free of excessive corrosion or scaling.
Channels and transducers
Published sensor choices: 2 channels for pipe sizes over DN150; 3 over DN300; 4 over DN400; and 6 over DN600.
W210 and W110 are wetted transducers, rated −40°C to +80°C. The dimension notes specify W210 for 150–1200 mm pipe and W110 for 150–3000 mm. Review these limits alongside the installation drawings.
Spool pieces
Carbon-steel spool and flange dimensions are shown below. DIN, JIS, EN and other pipe/flange standards are available with the customer's operating standard and drawing; pricing is revised accordingly. Large pipes and flanges also require the operating standard and drawing.
Include spool-piece requirements in your enquiry; the published ordering table does not define a separate spool-piece code.
Technical Data, Dimensions and Wiring
Performance specifications
- Flow range
- 0.01–7 m/s (0.03–23 ft/s)
- Accuracy
- Spool piece: ±0.2% of measured value. Insertion: ±0.5% of measured value.
- Repeatability
- Spool piece: 0.07%. Insertion: 0.15%.
- Pipe size
- Spool piece: 100–600 mm (4–24 in); above 600 mm requires additional customisation. Insertion: 100–5000 mm (4–200 in).
- Wi-Fi
- 2.4–2.4835 GHz; transmit power 12–14 dBm; transmission distance 15–20 m without obstacles. IEEE 802.11n, IEEE 802.11g, IEEE 802.11b.
Function specifications
- Analog output
- 4–20 mA; maximum load 750 Ω.
- Pulse output
- 0–9999 Hz, OCT output (adjustable).
- Relay output
- 125 VAC at 1 A or 30 VDC at 2 A.
- Communication
- RS232 / RS485; Modbus Protocol.
- TF card
- Maximum record: 4 GB. Storage interval: 1–13000 s. Up to 512 files; the introduction describes an interval within 1 second.
- Power supply
- 90–250 VAC, 48–63 Hz or 10–36 VDC.
- Keypad
- 24 light tactile keys.
- Display
- 4.7-inch TFT colour screen: English, Traditional Chinese and Simplified Chinese.
- Temperature
- Transmitter: −10°C to 60°C (14°F to 140°F). Transducer: −40°C to 80°C (−40°F to 176°F).
- Humidity
- Up to 99% RH, non-condensing.
- Installation
- Wall mount.
Physical specifications
- Transmitter
- Die-cast aluminum, IP65.
- Transducer
- IP68; encapsulated design.
- Transducer cable
- Standard: 30 ft (9 m). Maximum: 344 ft (105 m).
- W210
- 208 mm dimension; pipe size 150–1200 mm.
- W110
- 287 mm dimension; pipe size 150–3000 mm.
- Transmitter dimensions
- 230 × 280 × 110 mm; 35 mm cable-gland extension.
- Transmitter weight
- 1 kg.
Configuration notes
- Ordering output label
- The ordering table prints RS-458; the specification and wiring diagram identify RS485.
- Pipe-size limits
- The general insertion range is 100–5000 mm; the transducer drawing specifies W210 at 150–1200 mm and W110 at 150–3000 mm. Confirm the selected transducer and installation for the pipe.
- Flow range in ordering table
- The ordering table prints 0.03–±23 ft/s (0.01–±7 m/s).
- Power supply labels
- The wiring artwork labels AC 90–245 V; the specification lists 90–250 VAC.
- V-method minimum
- The installation drawing lists 100–1200 mm; the W210 dimension note starts at 150 mm.
Wiring Diagram
Transmitter Dimensions — mm
Transducer Dimensions — mm
Flange Dimensions
| NPS | DN | Overall Ø O | Bolt circle Ø W | Bolt hole Ø I | Holes n | Face Ø R | Raised face f | Thickness ft | Threaded / slip-on / socket welding Y | Hub Ø X | Inside Ø B |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 4 | DN100 | 230 | 190.5 | 19.1 | 8 | 157.2 | 2 | 23.9 | 32 | 135 | 116.1 |
| 5 | DN125 | 255 | 215.9 | 22.3 | 8 | 185.7 | 2 | 23.9 | 35 | 164 | 143.8 |
| 6 | DN150 | 280 | 241.3 | 22.3 | 8 | 215.9 | 2 | 25.4 | 38 | 192 | 170.7 |
| 8 | DN200 | 345 | 298.5 | 22.3 | 8 | 269.9 | 2 | 28.6 | 43 | 246 | 221.5 |
| 10 | DN250 | 405 | 362.0 | 25.4 | 12 | 323.8 | 2 | 30.2 | 48 | 305 | 276.2 |
| 12 | DN300 | 485 | 431.8 | 25.4 | 12 | 381.0 | 2 | 31.8 | 54 | 365 | 327.0 |
| 14 | DN350 | 535 | 476.3 | 28.6 | 12 | 412.8 | 2 | 35.0 | 56 | 400 | 359.2 |
| 16 | DN400 | 595 | 539.8 | 28.6 | 16 | 469.9 | 2 | 36.6 | 62 | 457 | 410.5 |
| 18 | DN450 | 635 | 577.9 | 31.8 | 16 | 533.4 | 2 | 39.7 | 67 | 505 | 461.8 |
| 20 | DN500 | 700 | 635.0 | 31.8 | 20 | 584.2 | 2 | 42.9 | 71 | 559 | 513.1 |
| 24 | DN600 | 815 | 749.3 | 35.0 | 20 | 692.2 | 2 | 47.7 | 81 | 663 | 616.0 |
ASME B16.5-2009: page 64, Chart 4 — flange processing surface dimensions; page 71, Chart 7 — 150 Grade flange drillplate; page 73, Chart 8 — 150 Grade flange dimensions.
Spool Piece Dimensions
| NPS | DN | Length L | Outer Ø OD | Inner Ø ID | Thickness n | Flange weight (kg) | Spool piece weight (kg) |
|---|---|---|---|---|---|---|---|
| 4 | DN100 | 400 | 114.30 | 102.26 | 6.02 | 5.7 | 18.8 |
| 5 | DN125 | 420 | 141.30 | 128.20 | 6.55 | 6.5 | 22.7 |
| 6 | DN150 | 450 | 168.30 | 154.08 | 7.11 | 7.7 | 29.0 |
| 8 | DN200 | 510 | 219.10 | 202.74 | 8.18 | 12.2 | 46.5 |
| 10 | DN250 | 580 | 273.00 | 254.46 | 9.27 | 16.2 | 66.5 |
| 12 | DN300 | 640 | 323.80 | 304.74 | 9.53 | 25.0 | 97.2 |
| 14 | DN350 | 680 | 355.60 | 336.54 | 9.53 | 33.7 | 122.5 |
| 16 | DN400 | 740 | 406.40 | 387.34 | 9.53 | 41.6 | 151.8 |
| 18 | DN450 | 780 | 457.00 | 437.94 | 9.53 | 46.2 | 173.9 |
| 20 | DN500 | 860 | 508.00 | 488.94 | 9.53 | 59.5 | 219.9 |
| 24 | DN600 | 980 | 610.00 | 590.94 | 9.53 | 83.2 | 303.4 |
ASME B36.10M-2004, page 5, Chart 1 — welded and rolled seamless steel tube dimensions and weight. For other standards or large pipes/flanges, provide the operating standard and drawing.
Transducer Installation Methods
Installation Site Selection
Minimum straight pipe lengths, expressed as multiples of pipe diameter D:
- 90° bend
- 10D upstream / 5D downstream
- Tee
- 50D / 10D
- Diffuser
- 30D / 5D
- Reducer
- 10D / 5D
- Valve
- 30D / 10D
- Vertical pipe
- 10D / 5D
- Pump
- 50D after the pump
Spool Piece Production and Testing
Production
The manufacturer describes a 3000 m² pipeline processing plant covering stainless-steel plate cutting, reelpiping, welding, flange mating, polishing and pickling. Non-destructive testing is carried out throughout welding, with a material testing report to meet design requirements.
Third-party testing
Products can be tested by a third party according to customer requirements.
Build your D348D Plus ordering code
Example — Standard Model: D348D Plus-1-1-2-W110-030
Multipath ultrasonic flowmeter, 4–20mA output, two-channel path wetted transducer with 9m cable.