Pressure Chamber Instrument Resources

In simplest terms, the pressure chamber can be thought of as measuring the “blood pressure” of a plant, except for plants it is water rather than blood, and the water is not pumped by a heart using pressure, but rather pulled with a suction force as water evaporates from the leaves.

We manufacture 12 different instruments. These instruments can be grouped into two categories to help you select the right one.

See how a PMS Instrument pressure chamber system should be properly connected and set up before measuring plant water potential.

Learn how to properly set the rate valve on PMS Instrument pressure chamber instruments to control pressurization and ensure accurate plant water potential measurements.

Learn how to properly seal a plant sample in the compression gland cover when using PMS Instrument pressure chamber instruments to ensure accurate plant water potential measurements.

Learn how to properly fill a portable tank used with PMS Instrument pressure chamber instruments to ensure safe operation and accurate plant water potential measurements.

Learn how to properly fill the portable tank on the Model 615 or Model 1515D pressure chamber instrument to ensure safe operation and accurate plant water potential measurements.

Learn how to properly fill the internal portable tank on the Model 610 pressure chamber instrument to ensure safe operation and accurate plant water potential measurements.