Measurement and Control Products for WEATHER Measurement and Control Products for WATER Measurement and Control Products for ENERGY Measurement and Control Products for MACHINES Measurement and Control Products for STRUCTURES Measurement and Control Products for EARTH
Portable, Stand-Alone
Measures duff water content in the field
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Technical Description

The DMM600 uses measurement methods sensitive to the dielectric properties of the material being measured. It consists of a cylinder that houses the electronics, a sample chamber with a compression knob, and an LCD readout.

To measure duff water content, place the sample in the sample chamber and turn the compression knob until an audible indicator signals that the sample is properly compressed and the measurement is complete. Total time for measurement is about 30 seconds. Readings are displayed in real-time only; measurements are not stored.

The DMM600 was developed in cooperation with the USDA Forest Service, Rocky Mountain Research Station, and Missoula Technology and Development Center.

DMM600 Specifications

  • Battery: 9 V alkaline
  • Measurements per Battery:
    more than 2000
  • Accuracy: ±5% full scale range
  • Resolution: 1% volumetric water content
  • CE Compliant
  • Sieve Description:
    #4 mesh = 0.187 in.
  • Diameter: 8.9 cm (3.5 in.)
  • Length: 25.4 cm (10 in.)
  • Weight: 1.7 kg (3.7 lb)

Typical Current Drain

  • Between Measurements:
    ~3 mA (goes into a low-power sleep mode after five minutes of inactivity)
  • Sleep Mode: 140 μA
  • During Measurement: 85 mA for ~1 ms

Resources and Links

Ships With

(1) 10873 9-Pin Female to 9-pin Male serial cable, 6 ft

(1) 15697 Mesh Sieve, 3 inch

(1) 15749 Sieve Case

(1) 6290 Phillips screwdriver

(1) 919 Alkaline 9 V battery

(1) PC-DMM CD with Support software