DMD-988 Series
Flanged Tuning Fork Density Meter

The DMD-988 flange type tuning fork density meter uses a pair of piezoelectric crystals installed on the tuning fork base to make the tuning fork vibrate at a certain resonant frequency. When dampened by the material, the amplitude decreases sharply and the frequency and phase change significantly. These changes will be detected by the internal electronic circuit, and after processing, they will be converted into switching signal output.

■ Applicable liquids: Measuring explosive and non-explosive hazardous liquids, corrosive liquids (acid, alkali solutions, etc.), high viscosity liquids, water, acid, alkali, mud, pulp, dyes, oils, milk, alcohol, beverages, etc.

■ Tuning fork material: stainless steel 304/316L

■ density Accuracy:±1,0 kg/m3(±0,001 g/cm3)

■ Working density range: 0-3000 kg/m3(0-3 g/cm3)

■ Working temperature range: -40°C~200°C (-40°F~302°F)

■ Display: LCD indication output (optional)

■ Output: 2 sets of normally open and normally closed contacts; 4-20mA

■ Process connection: threaded, flanged

■ Protection level: electrical part IP65/IP67 (optional)

■ Electrical connection: M18x1.5; M20x1.5 (explosion-proof) (can be customized)

■ Explosion protection: ExdIICT6, NEPSI

■ Seal: fluorine rubber (FKM)