Beam Radar Level Instrument

Beam Radar Level Instrument General GWLF guided wave radar level (interface) transmitter is designed and developed by Dandong Top Electronics Instrument Co., Ltd. GWLF can be used for measuring level or interface with 4-20mA standard current signal output. The measuring accuracy is not affected by change of specific gravity and dielectric constant of medium (in the setting range). It features itself easy operation and simple maintenance. It only needs to be entered figuration data into the instrument and it doesnt need to change the liquid level at field. So, GWLF is a new kind of level (interface) measuring instrument. GWLF is designed for complicate and tough working conditions. Radar signals travel along guided wave rod(s) (or cable(s)), instead of propagating in air, so measuring accuracy output is stable. The measuring performance cannot be affected by condensate the on rod. The lowest dielectric constant of the medium can be 1.4 (Example: butane). Measurement cannot be affected by boiling, fluctuation, turbulence, even mixer in the medium. Measuring data have nothing to do with changes of working conditions (process temperature, process pressure, specific gravity of medium). GWLF can trace the liquid level quickly. Application Medium: Any liquid, slurry or powder material with dielectric constant between1.4-100 Vessel: Almost all processing vessels, tanks and bypass containers within the allowed range of temperature and pressure for probe. Conditions: GWLF can be workable under the different tough working conditions such as volatile liquids, liquids with foam, sticky liquids, liquids with fluctuation, bubbling or boiling liquids, frequently loading and unloading, variable dielectric constant or specific gravity, etc. Two-wire, DC 24V supply power, low power consumption, optional HART protocol. Performances cannot be affected with change of specific gravity, dielectric constant, and other change of working conditions. For twin-rod probes, measurement cannot be affected by a little quantity of medium stuck with probes. And the instrument can still keep high measuring accuracy.With universal coupling, orientation of transmitter can be adjusted to any required direction. Three keys for configuration, LCD for values indication. Housing with 45 structural angle is convenient for wiring and installation. The length of rigid probe is from 0.6 to 6.1m. The length of cable probe can be up to 21m. The connection between transmitting head and probe is interchangeable. Transmitter can be disassembled off simply by screwing off the nut between transmitter and probe. Parameters of transmitter Output signal: 4-20mA or 4-20mA with HART protocol, applicable within 3.8-20.5mA. Resolution: Analog: 0.01mA, Display: 1mm Accuracy: 5mm or 0.1% FS for coaxial probe Measuring range: 0.3-6.0 m Load resistance: Max.650 @ 24V DC Damping: 0-32 seconds adjustable Diagnosis alarm: 3.6mA, 22mA, Hold User interface: 3 keys, LCD or HART communication Ambient temperature: -40 to 60 (LCD operating temperature: -20 to 60) Electric entry: M20×1.5 or Rc1/2 or NPT1/2 (female thread) Ingress protection: IP66 Supply power: 11 to 26.4V DC Housing material: AluminiumMagnesium .25%) NoteWhen both HART protocol and field indication are selected, 3.6mA self-check is not available. Model selection table for Transmitter ModelCodeCode MeaningGWLF-Guided wave radar level (interface) transmitterMElectronic components: 4-20mAZElectronic components: 4-20mA with HART protocolIExplosion-proof: Intrinsically safeAExplosion-proof: Intrinsically safe + Explosion isolationPExplosion-proof: Non Explosion-proof1Electric entry: M20×1.5(female thread)2Electric entry: NPT1/2 (female thread)3Electric entry: Rc1/2 (female thread)GWLF- Explosion-proof Approval Explosion-proofIntrinsically safeExplosion isolation + Intrinsically safeMarkExia II CT2-T6Exd (ia) II CT2-T6Certificate No.GYB071234GYB071242 Dandong Top Electronics Instrument Co.,Ltd TP5041-Ex TP5045-Ex Shanghai Automatic Instrument Institute GS8041Ex GS8037-Ex TURCK Co. MK33-11 Ex-Hli/24V DC English MTL Co. MTL3046B MTL5042 Deutsch P+F Co. KFD2-STC3- Ex1