Laser Camera Sensors

ProH TwinDelta

This dual sensor enables you to measure the molten metal level in a mould related to a second measuring reference point (Slab/ingot mould top/edge).

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Optimal measurement
Two lasers; reading level and reference point
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Cooling system
Keeping functionality in heavy steam and smoke
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Stable performance
Designed for harsh and shifting environments
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Accurate measurement
Measures difference between edge of mouls and metal surface

Absolute correction with maintained calibration

The Laser Camera Sensor model ProH from Precimeter combines high performance laser triangulation with the necessary control functions to maintain an accurate molten metal level measurement. The digital camera technology in the Precimeter sensors results in very high performance and resolution. The advanced technology enables stable readings even when the molten metal material reflectivity changes dramatically and/or in harsh conditions with heavy steam and smoke environment.

The built in PI controller eliminates the need for an external industrial controller.The ProH TwinDelta sensor is, amongst other applications, very suitable in slab casting applications for mould level control. Principle The sensor measures the difference between the edge of the mold and the molten metal surface. This means that the calibration is maintained and the level of the molten metal is absolute correct.

Advantages with ProH TwinDelta Laser Camera Sensor

Technical Specifications

Power Requirement
24 VDC < 1 A
Level Output
4–20 mA
Internal Temp Output
4–20 mA (0–100°C, 32–212°F)
Digital Input
Light source on/off
Digital Output
Sensor status
±0.07 mm
Ethernet Protocol
Optional (Profinet, Ethernet IP or Modbus TCP)
Precimeter tool (PC software)
Sampling Rate
50 Hz
Laser Power
< 1 mW (Laser class 2) / < 5 mW (Laser class 3R)
Compressed air (3/8” connection)

sensor models

Sensor Model
ProH CD450R300
Clearance Distance
450 mm (17.7”)
Measurement Distance
300 mm (11.8”)

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Laser Camera Sensors