Dv-1 owners manual

Appendix G - The Brookfield Guardleg Appendix J - Fault Diagnosis and Troubleshooting Appendix L - Warranty Repair and Services Viscosity Test Report The Brookfield DV1 Viscometer series has provided exceptional value for viscometer users since its introduction in The Brookfield DV1 Viscometer continues in this tradition of innovation, quality and value.

The principle of operation of the DV1 is to drive a spindle which is immersed in the test fluid through a calibrated spring. The viscous drag of the fluid against the spindle is measured by the spring deflection. Spring deflection is measured with a rotary transducer. This system provides continuous sensing and display of the measurement during the entire test.

The measurement range of a DV1 in centipoise or milliPascal-seconds is determined by the rotational speed of the spindle, the size and shape of the spindle, the container the spindle is rotating in, and the full-scale torque of the calibrated spring.

The higher the torque calibration, the higher the measurement range. The viscosity measurement range for each torque calibration may be found in Appendix B. This option allows ambient temperature measurement or temperature measurement of the sample during viscosity testing.

Contact Brookfield or your local Brookfield dealer for more information on this instrument option. The following applies to DV1 Viscometers when using an optional temperature probe. Look for the. The equivalent units of measurement in the SI system are calculated using the following conversions:. References to viscosity throughout this manual are done in CGS units. The following applies to DV1 Viscometers with the temperature probe option.

Look for the symbol. Tp throughout this manual for instructions pertaining specifically to DV1 Viscometers with temperature probe option.

Please check to be sure that you have received all components and that there is no damage. If you are missing any parts, please notify Brookfield Engineering or your local Brookfield agent immediately. Any shipping damage must be reported to the carrier. Spindle Set. Temperature Cable SCY. Temperature Probe Clip. Temperature Probe. BSEN Safety requirements for electrical equipment, for measurement, control and laboratory use.

This symbol indicates that this product is to be recycled at an appropriate collection center. Please contact your dealer or the local authorities in charge of waste management on how to dispose of this product properly. All Brookfield offices and our network of representatives and dealers can be found on our website: www. The level is adjusted using the two leveling screws on the base. Adjust the leveling screws so that the bubble level on the front of the DV1 is centered within the circle.

Lower the cup and remove the foam insert. Save for future shipments. Additional installation help can also be found on our YouTube channel: www. Refer to Figure I-2 for the following, except where noted. Connect the power cord to the socket on the back panel of the instrument and plug it into the appropriate AC line.

Left when facing the viscometer. Note: The DV1 must be earth grounded to ensure against electronic failure!! Note: The AC input voltage and frequency must be within the appropriate range as shown on the nameplate of the viscometer see Section I. Figure I-3 shows the control keys on the face of the DV1 Viscometer. Three HotKeys arelocatedimmediatelybelowthedisplay. The action executed by the hot key will be indicated on the display. The actions available will vary with each screen.

Typical actions include:. This key is used to turn the motor off, stop spindle rotation and stop current test. This key is used to turn the motor on, start spindle rotation and start current test. This key is used to Scroll Up in an increasing value direction through the available speed or spindle tables. This key is used to Scroll Down in a decreasing value direction through the available speed or spindle tables. Make sure the instrument is in a clean, dry working environment dust-free, moderate temperature, low humidity, etc.

Not doing so may result in deposit build up on the upper part of the shaft and cause interference between the shaft and the pivot cup. Be sure to remove spindle from the instrument prior to cleaning. Note left-hand thread. Severe instrument damage may result if spindle is cleaned in place.

Instrument, Keypad and Display: When not using the keypad protector, clean with dry, non-abrasive cloth. Do not use solvents or cleaners. When cleaning spindles, do not apply excessive force, which may result in bending the spindle shaft. The viscometer will present a blue screen for approximately 4 seconds and then the About Screen for 5 seconds.

TIP : When contacting Brookfield or your authorized Brookfield dealer for technical support or repair services, please record the information on the About Screen and the serial number found on the serial tag located on the back of the instrument head in any correspondence or shipping paperwork.

This process sets the zero reading for the measurement system. The AutoZero will be performed every time the instrument is turned on. It is not necessary to perform an AutoZero before each test. Proper AutoZero function requires that the viscometer be level see Section I. Additionally, any spindle coupling or extension links used with accessory devices should be removed from the coupling shaft. The DV1 display presents a reminder screen to remove the spindle.

Upon completion, the DV1 presents a reminder to re-attach the spindle. The operator must press the NEXT hot key to proceed.

A failure to properly level the viscometer or to remove the spindle may affect the zero value and all measurement results. The DV1 Viscometer uses a 3-inch monochromatic display with keypad. All user input is made through the keypad. See Section I. Hot Keys are used on the DV1 Viscometer to assist with menu navigation. There are three Hot Keys located immediately under the viscometer display. The function of each key is indicated at the bottom of the display and may change depending on the screen currently in view.

The use of Hot Keys allows the DV1 Viscometer to offer many menu choices while using a simple interface. Possible Hot Key actions include:. The spindles are attached to the viscometer by screwing them onto the coupling nut on the lower shaft see Figure II Note that the spindles have a left-hand thread.

Place the DV-1 in a clear area where you can reach the rear panel for setup and to connect the cables. A position DIP switch is located on the right hand side of the rear of the unit. This DIP switch is used to set the unit configuration. The switch positions are numbered 1 through 10 and their functions are as follows:. The Select switch is located on the front of the unit and is used to select test modes. Pressing once selects Self Test. A second press selects Digital Loopback, etc.

You must cycle through all four test modes to return to normal operation. Therefore, the switch must be pressed a total of five times to return the unit to normal operation.

The indicators on the front of the unit are divided into two groups; six status indicators on the left, four test indicators on the right. Push the select button once. An internal test pattern generator runs a complete diagnostic on the unit. Return to the normal mode by pushing the front panel button until the test LED is out. Digital Loop. Internally, the unit is configured as below.

This test allows the user to run a complete "round trip" test as shown below. Line Loop. The unit is internally looped. Functionally, this is the same as the Self Test except that the internal pattern generator is not used.

Remote Test. Push the select button until the Remote Test light flashes. It will flash red until it detects an "OK" pattern from the remote unit. The Remote Test light will then flash green.