Is there a coolant pressure specification for Ophir water-cooled sensors?
Yes. Please reference the chart below:
Minimum Flow Rates for Water-Cooled Sensors
| Sensor | Recommended flow rate at full power1 | Minimum flow rate at full power1 | Absolute minimum flow rate | pressure drop across sensor (at maximum flow rate) | pressure drop across 8 meter of tubing (at maximum flow rate) | ||
| liters/min) | (liters/min) | (liters/min) | Bar | MPa | Bar | MPa | |
| L250W | 3 | 3 | 3 | 0.3 | 0.03 | ||
| L300W | 3 | 3 | 3 | 0.3 | 0.03 | ||
| 1000W | 6 | 3 | 3 | 0.3 | 0.03 | 0.5 | 0.05 |
| L1500W | 6 | 3.5 | 3 | 0.3 | 0.03 | 0.5 | 0.05 |
| L2000W | 6 | 3.5 | 3 | 0.6 | 0.06 | 0.5 | 0.05 |
| 5000W | 8 | 5 | 3 | 0.6 | 0.06 | 0.5 | 0.05 |
| 6K-W-200x200 | 6 | 6 | 5 | 0.5 | 0.05 | 0.3 | 0.03 |
| 10K-W | 8 | 8 | 3 | 1 | 0.1 | 0.5 | 0.05 |
| 15K-W | 12 | 12 | 3 | 2 | 0.2 | 1 | 0.1 |
| 16K-W | 12 | 12 | 3 | 1 | 0.1 | 0.8 | 0.08 |
| 30K-W | 25 | 25 | 6 | 2 | 0.2 | 3 | 0.3 |
| 120K-W | 60 | 60 | 30 | 4 | 0.4 | 3.5 | 0.035 |
You can find a lot more information about the correct use of water-cooled sensors in the article "How to use water cooled Ophir sensors", here.