The OFITE Model 800 viscometer determines the flow characteristics of oils and drilling fluids in terms of shear rate and shear stress over various time and temperature ranges at atmospheric pressure. Speeds are easily changed with a control knob, and shear stress values are displayed on a lighted magnified dial for ease of reading. An optional cup heater is used to raise the temperature of the test sample. The Model 800 is suitable for both field and laboratory use and uses a motor-driven electronic package to provide drilling fluid engineers with an extremely accurate and versatile tool. The Model 800 operates from a 12 Volt battery, or standard rig power, either 115 or 230 Volt, 50-60 Hz. The viscometer’s motor RPM is continuously monitored and automatically adjusted by the OFITE Pulse-Power electronic speed regulator to maintain a constant shear rate under varying input power and drilling fluid shear conditions. The eight precisely regulated test speeds (shear rates in RPM) are as follows: 3 (Gel), 6, 30, 60, 100, 200, 300, and 600. A stir speed is also provided.

Advantages:
-Voltage requirement - 230, 115, or *12 Volts/50 or 60 Hz
-Operates anywhere in the world without flipping switches or re-wiring.
-Lighted dial makes reading easier and more accurate.
-Conventional oilfield rotor, bob and torsion springs maintains rheology history and reproducibility between instruments and laboratories. 
-Threaded rotor - mechanically attaches to the unit the same way every time.
-Comes with a carrying case. 

*12 Volt operation requires a special cable

Size: 6 x 7 x 16 inches (15.2 x 17.8 x 40.6 cm)
Weight: 13 lbs 2 oz (6 kg)

Components:
#130-10 OFITE Model 800 8-Speed Viscometer:
#130-10-2 Speed Reference PC Board
#130-10-3 Speed Control PC Board
#130-10-4 Encoder Pick-up PC Board
#130-10-5 Switch Plate
#130-10-6 Wiring Harness
#130-10-8 Encoder Disc
#130-10-14 Motor 
#130-10-16 Belt 
#130-10-17 Cover
#130-10-18 Lens for Cover
#130-10-19 Lamp
#130-10-20 Torsion Shaft

#130-10-22 Card Guide for PC Boards
#130-21 Cup, Stainless Steel
#132-50 Rotor
#132-56 Sleeve
#132-57 Shield
#132-58 Bob
#132-59 Retainer for Bearing
#132-71 Main Shaft Bearing, 20 x 42 mm
#132-74 Locking Ring, 1.653"
#132-75 Locking Ring, 1/2"
#132-76 Locking Ring, 25/32"

#134-05 Bob Shaft Bearing, Shielded
#134-10 Torsion Spring Assembly, F1
#134-39 Clamp Sleeve for Torsion Spring
#134-40 Shim, 5/8" x 3/8"
#135-02 Bearing Retainer Lock Ring, External

#135-18 Socket Set Screw f/Clamp Sleeve
#142-63 Locking Screw

#163-26 Small Clip
#170-21 Support Rod for Stand
#170-44 Rubber Foot, 1/2"

#171-32 Midget Knob
#171-67 Speed Control Knob
#130-10-13 Carrying Case

#130-10-13-1 Custom Foam Inserts for Case
#130-10-30 Power Supply, 230-115-12 Volt/50-60 Hz

#152-37 AC Power Cord, 3-Conductor

Optional:

#130-10-SP One Year’s Spare Parts for 130-10
#130-10-31 Adapter to Convert Old Style Viscometer to New Power Supply

#132-56-C  Rotor, R1 Closed Cup, 316 SS