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Model 615

Warning!Important Safety Information
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Model 615 Moisture Stress Pressure Chamber
Download The Operating Manual for Model 615

The Model 615 Pressure Chamber Instrument is a favorite for growers making routine water measurements and scheduling irrigation. It is the product of customer input. Our customers requested an instrument that was fully enclosed in a dust-proof case with an easily removable tank. They wanted an instrument that was easily hand carried or ready for mounting on an All-Terrain-Vehicle (ATV). The results of these requests is the Model 615 Pressure Chamber.

The instrument comes fitted with our most popular sealing gasket size – 1/4 inch Compression Gland Gasket and Insert. This gasket will seal a sample that is 1/4 inch in diameter down to a completely closed position. If you need other sealing options such as bladed grass or other semi-round sizes check our other options.

This is an excellent choice for routine water measurements in crop plants and light research in plants with little to moderate water stress. For extensive research projects you might consider a Model 1000 or Model 1505D due to the larger range of operating pressure.

The instrument has a bail-spring handle for carrying and comes complete with a shoulder strap to lighten the load in the field. It has 5 tie-down rings for mounting to ATV or other transportation. The instrument comes complete with light weight aluminum nitrogen cylinder (20 cubic foot) that is secured with 2 inch heavy duty Velcro straps and can be quickly replaced with a full cylinder. This cylinder can easily be transfilled from a large nitrogen cylinder as shown here.

Model 615 Pressure chamber instrument on an atv
Model 615 Pressure chamber instrument carried by hand
Model 615 Pressure chamber instrument open on an atv

    For more information about how the Pressure Chamber works or other questions, please check our Resources Page.

    Model 615 Specs

    Maximum Operating Pressure40 bar / 4 Mpa
    Chamber ConstructionAnodized Aluminum
    Chamber Size2.5 inch inside diameter x 5.0 inch inside depth
    Read-outBourdon Tube Gauge (Bar – PSI Scale)
    Size (L x W x H)22 × 15 × 10 inches
    56 × 38 × 26 centimeters
    Weight32 Lbs / 14 Kg
    Gauge4.5” Diameter Gauge
     0.5% accuracy
     40 bar (4 Mpa) range
    Aluminum Tank207 Bar/ 3000 PSI Maximum Pressure 20 Cubic Foot

    Instrument comes complete with: 1/4 Inch Compression Gland Sealing System, 5 Extra 1/4 Compression Gland Gaskets, 6 foot Filling Hose, 1 – Solid Lab Stopper for instrument testing, O-Ring lubricant and Lithium Grease, 11/32 inch wrench and 3/32 inch Allen Key for Control Valve Adjustment, Safety Glasses and a color Operating Instructions Manual.

    Recommended Accessories

    • Extra Compression Gland Gaskets
    • Volume Reducer
    • Lighted Hand Lens
    • Instrument Mounted Eye Lens.

    Note: Necessary accessories will depend upon users application.

    Helpful Links

    Filling the Model 615 Portable Tank

    • EU Declaration of Conformity
      European Declaration of Conformity
      This instrument can only be CE-marked if it is sold without the US-made aluminum cylinder.

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    PMS Instrument Products

    • Pressure Chamber Instruments
      • Model 600
      • Model 600D
      • Model 615
      • Model 615D
      • Model 670
      • Model 1000
      • Model 1505D
      • Model 1505D-EXP
      • Model 1515D
      • Pump-Up Chamber
    • Specialty Chambers
      • Model 600-EXP Super Chamber
    • Accessories
      • Compression Gland Gaskets and Inserts
      • Eye Lens with Lanyard
      • Grass Compression Gland
      • Instrument Mounted Eye Lens
      • Lighted Hand Lens (5X)
      • Portable Tank
      • Extra Tank for Model 615, Model 615D or Model 1515D
      • Stem Water Potential Bags
      • Volume Reducer
      • Standard Sealing Gaskets & Insertion Tools
      • Endpoint Selector Tool

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