FMR53 Radar Level Transmitter Overview
FMR53 is a high-frequency radar level transmitter suitable for continuous level measurement of liquids, slurries, and solid particles. Its core advantage lies in non-contact measurement, unaffected by changes in medium density, temperature, or pressure. This article provides the FMR53 Chinese manual download and outlines key parameters and commissioning points to help engineers get started quickly.

FMR53 Chinese Manual Download
Click the link below to obtain the complete FMR53 Chinese manual (PDF format), including installation dimensions, wiring diagrams, configuration menus, and fault codes. It is recommended to read carefully before selection or commissioning.
- Download file: FMR53 Chinese Manual.pdf
- Applicable version: Hardware version ≥ 2.0, software version ≥ 1.4
- Language: Simplified Chinese
Core Technical Parameters
The table below summarizes the main performance indicators of the FMR53 for quick comparison by procurement and technical personnel.
| Parameter | Specification |
|---|---|
| Measurement principle | Frequency Modulated Continuous Wave (FMCW) radar |
| Frequency range | 80 GHz |
| Measurement range | 0.2 ~ 30 m (liquid) |
| Accuracy | ±2 mm |
| Output signal | 4-20 mA / HART / Modbus |
| Process connection | G1½ / NPT1½ / flange |
| Process temperature | -40 ~ +200 °C |
| Process pressure | -1 ~ +40 bar |
| Protection class | IP67 / IP68 |
Installation and Commissioning Steps
Installation Precautions
- Avoid the inlet, agitator, and tank wall to prevent false echoes.
- Ensure the antenna is vertically aligned with the medium surface, with a tilt angle ≤ 3°.
- Flange or threaded connections must be sealed to avoid leakage.
- For solid level measurement, it is recommended to install an aiming device or universal joint.
Commissioning Process
- After power-on, connect the device using a HART communicator or Modbus.
- Enter the configuration menu and set the empty tank height (E) and full tank height (F).
- Select the medium type (liquid/solid) and set the response speed.
- Perform false echo suppression (suppression curve) to eliminate fixed interference.
- Verify that the 4-20 mA output corresponds to the level, and fine-tune the zero point if necessary.
Common Applications and Selection Recommendations
The FMR53 is widely used in water treatment, chemical storage tanks, food and beverage, and cement silos. When selecting, confirm the process connection, temperature and pressure, and output protocol.
- Liquid measurement: Prefer horn antenna to avoid condensation.
- Solid measurement: Use rod or lens antenna and add purging.
- Explosion-proof occasions: Choose intrinsically safe or flameproof type, refer to the certification chapter in the manual.
For more detailed configuration menus, fault codes, and dimension drawings, please download the FMR53 Chinese manual.