Series LF-420 Radar Level Transmitter
VQ-LF420
Level and flow instrument, range 0.2 to 30 m, accuracy 2 mm.
- RANGE
- 0.2 to 30 m
- ACCURACY
- 2 mm
- SIZES
- DN50 to DN150 or threaded
- TEMPERATURE
- -40 to +200 °C
Why it is specified
Flow and level are where a plant discovers that the instrument was chosen for the line size instead of for the medium. Conductivity, viscosity and solids all get asked before a selection is issued.
Typical applications
- Batch and totalising measurement
- Cooling water balance
- Dosing verification
- Tank level indication
Options and executions
- Empty pipe detection
- Factory flow calibration certificate
- Hygienic connections and finish
- Remote transmitter with a 10 m cable
The full table.
Figures cover the whole series. The variant table below narrows them to a part number.
PERFORMANCE
- Measuring range
- 0.2 to 30 m
- Accuracy
- 2 mm
- Repeatability
- 1 mm
- Output
- 4 to 20 mA with HART 7
- Medium requirement
- None, non-contact measurement
MATERIALS
- Wetted parts
- PTFE or 1.4404 antenna
- Housing
- Aluminium or 1.4301
- Seal
- FKM or EPDM
CONNECTIONS AND RATINGS
- Sizes
- DN50 to DN150 or threaded
- Connection
- Flanged, clamp or G 1 1/2
- Pressure rating
- PN40
- Medium temperature
- -40 to +200 °C
- Protection
- IP67
Stocked frame sizes.
| PART NUMBER | SIZE | RANGE | OUTPUT | LINER OR FLOAT |
|---|---|---|---|---|
| VQ-LF420-10 | G 1 1/2 | 0.2 to 10 m | 4 to 20 mA | — |
| VQ-LF420-20 | DN80 | 0.3 to 20 m | 4 to 20 mA | — |
| VQ-LF420-30 | DN150 | 0.4 to 30 m | 4 to 20 mA | — |
LF-420, DS-LF-420
The datasheet is issued with the selection rather than downloaded blind, so the figures that arrive are the ones for your duty point. Ask for it with the quotation and it comes back as a PDF.
What is in it
- Selection data and the limits each figure applies at
- Dimensional drawings for every size in the variant table
- Materials of construction and the compatibility notes
- Installation, commissioning and maintenance intervals
- Spare parts list with the part numbers
Elsewhere in the catalogue.
PG-110
Pressure instrument, range 0 to 1 bar up to 0 to 600 bar, accuracy Class 1.0.
PG-210
Pressure instrument, range 0 to 16 mbar up to 0 to 25 bar, accuracy Class 1.6.
PG-320
Pressure instrument, range 0 to 100 mbar up to 0 to 400 bar, accuracy 0.25 per cent of span.
PG-430
Pressure instrument, range Matched to the instrument, connection DN25 to DN100 flanged or threaded.
Quote the LF-420 for your duty.
Send the process data and the line size. The quotation comes back with the selection, the calculation and the lead time on the stocked variants.
Vanteq Industrial is a fictional company created for demonstration purposes. This product does not exist. The specifications, performance figures, materials and datasheet references on this page are illustrative and must not be used to select, size or buy equipment.