ProH
The intelligent digital laser and camera metal level sensor family from Precimeter is a high performance laser triangulation device developed specifically for its purpose. It will measure on any molten metal surface with a surface temperature below 1000˚C.
Precise level measurement
Secure castings
Automatic castings with minimal human contact
Complete overview
Adjust levels remotely with control system
Control in every step
Stable readings in reflective and harsh conditions

The sensor for every casting
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.
Advantages with ProH Laser Camera Sensor
| 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 |
| Resolution | ±0.07 mm |
| Ethernet Protocol | Optional (Profinet, Ethernet IP or Modbus TCP) |
| Interface | Precimeter tool (PC software) |
| Laser Power | < 1 mW (Laser class 2) / < 5 mW (Laser class 3R) |
| Cooling | Compressed air (3/8” connection) |
Sensor models
| Sensor Model | Clearance Distance | Measurement Distance |
|---|---|---|
| Sensor Model ProH CD240R325 | Clearance Distance 240 mm (9.4”) | Measurement Distance 325 mm (12.8”) |
| Sensor Model ProH CD450R300 | Clearance Distance 450 mm (17.7”) | Measurement Distance 300 mm (11.8”) |
| Sensor Model ProH CD700R300 | Clearance Distance 700 mm (27.6”) | Measurement Distance 300 mm (11.8”) |
| Sensor Model ProH CD900R500 | Clearance Distance 900 mm (35.4”) | Measurement Distance 500 mm (19.7”) |
| Sensor Model ProH CD1500R1600 | Clearance Distance 1500 mm (59.0”) | Measurement Distance 1600 mm (62.9”) |
| Sensor Model ProH CD2350R3000 | Clearance Distance 2350 mm (92.5”) | Measurement Distance 3000 mm (118.1”) |