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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Product information

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 patented 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.


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.


Adapted for optimal performance in slab casting mould application
Enhanced cooling system
Extremely accurate measurement
Stable performance in harsh conditions/environment
Easy installation
Compact design
Maintenance free
Surface adaption system
Precimeter Tool (PC Software) for access to all sensor parameters
Features of product
Laser sensor type
Clearance distance
450 mm (17.7")
Measurement range
300 mm (11.8")
0.074mm (0.03")
Technical specifications
Power Requirement:

ProH Twin Delta - 1

Level Output:

ProH Twin Delta - 2

Internal Temp Output:

ProH Twin Delta - 3

Digital Input:

ProH Twin Delta - 4

Digital Output:

ProH Twin Delta - 5


ProH Twin Delta - 6

Ethernet Protocol:

ProH Twin Delta - 7


ProH Twin Delta - 8

Sampling Rate:

ProH Twin Delta - 9

Laser Power:

ProH Twin Delta - 10


ProH Twin Delta - 11

Empty row

24 VDC < 1 A


4–20 mA


4–20 mA (0–100°C, 32–212°F)


Light source on/off


Sensor status


±0.07 mm


Optional (Profinet, Ethernet IP or Modbus TCP)


Precimeter tool (PC software)


50 Hz


< 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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