M3600 Acid Viscometer


  • Height: 16.8 in.
  • Width: 5 in.
  • Depth: 8 in.
  • Weight: 12 lbs
  • US Patent: 6,571,609

Acid-Resistant wetted material and components suitable for corrosion/acidizing testing
The M3600 Acid Option Viscometer has been on the market for over 10 years. The option features acid-resistant wetted material that is nickel chromium-molybdenum alloy (Hastelloy C-276). The unit also features all-sheet metals and stage plates that are coated with HCL acid-resistant paint. This provides an excellent resistance to corrosive samples and a variety of chemical compounds.

Two Operational Modes - Stand-alone or Integrated with PC
The M3600 can be used as a stand-alone unit, enabling users to create test sequences and record test data without the use of external equipment. It can also be connected to a Microsoft Windows PC operating our custom software for advanced test operations, test results analysis, and to export test data in spreadsheet format.

Durable, Reliable, and Affordable Digital Power
The innovative design and rugged construction of the M3600 Viscometer make it equally at home in the field or in the laboratory.

Software to cover all tests, from general viscosity to specialty
The included M3600Frac software is designed for measuring fracturing fluids, while M3600DAQ is designed for general viscosity measurement and mud testing. The Grace Instrument M3600 Acid Viscometer is a true Couette, coaxial cylinder, rotational viscometer. It is engineered to meet the various fluid rheology measuring needs of our customers, from on-site oilfield personnel doing single-speed tests in harsh environments to laboratory researchers doing advanced rheology testing.

The M3600 Acid Viscometer incorporates a steel framework, robust electronics and user-friendly interface for years of trouble-free operation and minimal maintenance. Clean-up between tests is easy and quick, and calibration is ideally performed with the push of a button. Used as a stand-alone unit, or with a Microsoft Windows PC and the included M3600DAQ and M3600Frac software. The unit provides versatile and affordable solutions to meet your viscometer needs.

US Patents: 6,571,609
Dimensions: 16" height x 5" width x 8" depth
Weight: 12.5 lbs. (standard) or 14 lbs. (acid option)
Temperature Range: Ambient (20°F with chiller) to 212°F
Pressure: Atmospheric Pressure
Sample size: 35 - 190 mL (depending on bob size & cup sleeve type)
Resolution: 1 dyne/cm2
Speed Range: 0.01 to 600 rpm continuous
Shear Rate Range: 0.0038 to 1020 sec-1
Shear Stress Range: 2 to 3,600 dyne/cm2
Viscosity Range: 0.5 to 27,000,000 Centipoise
Torque: 7 μN.m to 14 mN.m
Accuracy: ± 0.5% of torque span or better
Viscometer Voltage: 90 VAC to 240 VAC
Heater Cup Voltage: 120 VAC version and 240 VAC version
Computer Requirements: PC with MS Windows 9X/2000/XP/Vista/Win 7
  • Sturdy, portable, and compact
  • Acid and fully digital
  • Includes LCD display with automated keypad control
  • Allows test flexibility
  • Stores test data
  • Low maintenance with repeatable results
  • Available with an acid-proof option, which allows the user to test samples with high acid concentrations, including fluids with 30% HCl.
  • All wetted materials are Hastelloy C276 construction.
  • Carrying Case contains the M3600 Viscometer with attached rotor, data cable, three bobs, anti-climber, thermocouple and heater cup.
Downloads for the M3600 Acid: