Marmonix MRL-3100 Radar Level Transmitter

The Marmonix MRL-3100 radar level transmitter measures corrosive liquid without touching it. A 26 GHz pulse leaves the antenna, reflects off the liquid surface, and returns as a level reading. The specification table lists a 10 m range and ±5 mm precision.

If you are measuring solids or a dusty silo instead, see the MRL-3300. The rest of the range is under level transmitters.

What the MRL-3100 radar level transmitter gives you

What the MRL-3100 gives you on the vessel:

• 10 m measuring range at ±5 mm, on a 26 GHz radar
• Non-contact antenna, so the sensor stays out of the corrosive liquid
• 4–20 mA/HART (two-wire or four-wire) and RS485/Modbus
• Four-digit LCD on an aluminum housing, IP67
• Exia IIC T6 Ga, process −40°C to 120°C, pressure −0.1 to 0.3 MPa
• Thread connection, with an optional flange

MRL-3100 specifications

From the specification table on this page:

• Medium: corrosive liquid
• Measuring range: 10 meters
• Frequency: 26 GHz
• Precision: ±5 mm
• Temperature: −40°C to 120°C
• Process pressure: −0.1 to 0.3 MPa
• Output: (4–20) mA/HART and RS485/Modbus
• Display: four-digit LCD
• Shell: aluminum. Protection: IP67. Explosion-proof grade: Exia IIC T6 Ga
• Connection: thread, or flange as an option

Questions about the MRL-3100

How far does the MRL-3100 measure?

The specification table lists 10 meters, at ±5 mm, using a 26 GHz radar.

Can the MRL-3100 sit in the liquid?

No. It is a non-contact radar. The antenna sends the pulse down to the surface and reads the echo.

Which outputs does the MRL-3100 include?

The table lists (4–20) mA/HART, two-wire or four-wire, and RS485/Modbus, with a four-digit LCD.

MRL-3100