Brookfield DV-III Ultra Rheometer Bedienungsanleitung Seite 32
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Brookeld Engineering Laboratories, Inc. Page 32 Manual No. M/98-211-B0104
Brookeld Engineering Laboratories, Inc. Page 32 Manual No. M98-211-E0912
IV.2 DV-III Speed/Time Pair Programs for Making Viscosity Measurements
This programming method allows the operator to control the DV-III Ultra through the variables of
speed and time. These speed/time pairs instruct the rheometer to operate at a speed of rotation for
a certain period of time. Programs can be created with up to 25 steps. The DV-III Ultra can store
up to 10 programs. Upon completion of a program, the data may be viewed on the DV-III Ultra
display, analyzed or printed to an attached parallel or serial printer.
Two examples of programs are shown below:
Collect Data Over Time Collect Data At Several Speeds
Step RPM Time Step RPM Time
1 100 00:12 1 2.5 01:00
2 100 00:12 2 5 00:30
3 100 00:12 3 10 00:30
4 100 00:12 4 20 00:15
5 100 00:12 5 50 00:15
Five viscosity data points Five viscosity data points will be
will be collected over collected at ve speeds over
one minute. 150 seconds.
This program mode is accessed by pressing the program key and selecting number 1; 1 = DV-III.
The creation, editing and execution of DV-III programs are described in the following sections.
There are two types of test programs:
1) Next Speed Set where the test speeds are programmed, and the operator must signal the DV-
III Ultra to change speeds (and therefore take a reading) by pressing the ENTER key.
2) Prog Speed Set where the DV-III Ultra will perform the test automatically.
Each step of a program has two variables - speed and hold time. The reading is taken at the end of the
hold time interval in a Prog Speed Set or when the ENTER key is pressed in a Next Speed Set.
If the rst step hold time interval is 0 seconds, the program is a Next Speed Set type. If the rst
step interval is 1 second or more, the program is a Prog Speed Set type.
S SPEED SET SELECTION AND PROGRAMMING
The DV-III Ultra viscometer allows for the retention of a maximum of 10 speed sets with up to
25 discrete speeds per speed set. The program locations are numbered 0 through 9. These speed
sets are retained in EEPROM memory for those times when the DV-III Ultra is not powered up.
To access a previously programmed speed set or to enter data for a new speed set, the user presses
the “1” key when in the display of Figure IV-1 and is presented with the screen shown in Figure
IV-2:
SPEED SET OPERATIONS
1 = ENTER/EDIT A PGM
2 = CLEAR SPEED SET
3 = USE SPEED SET
Figure IV-2
- BROOKFIELD DV-III ULTRA 1
- Table of Contents 3
- I. INTRODUCTION 5
- Maximum Torque Value 6
- Component Part Number 7
- Ball Bearing Option: 10
- Electrical Certication: 10
- CLAMP ASSEMBLY 12
- DV-III Ultra 12
- HEAD UNIT 12
- TENSION SCREW 12
- Connector 14
- RS-232 Serial 14
- Printer/Computer 14
- STRIP CHART RECORDER 16
- II. GETTING STARTED 18
- “REMOVE SPINDLE, LEVEL 18
- KEY.” Press a key 18
- TORQUE LESS THAN 0% 21
- SELECT SPDL key. The DV-III 21
- MOTOR ON/OFF/ESCAPE key 21
- one minute. 150 seconds 32
- USE SET:_ 33
- STEP TIME = 00:05 33
- USING PREPROGRAMMED SPEEDS 37
- OPTION/TAB key 38
- LOCKOUT OPTIONS 38
- PROG RUN key is pressed 40
- PROG RUN 40
- ENTER key. Assume that the 41
- ENTER key, our display will 41
- PROGRAMMED SPEED STOP 41
- PROGRAMMED SPEED HOLD 42
- SINGLE SPEED 49
- DVIII SPEED/TIME PAIRS 50
- B.E.V.I.S. PROGRAMS 50
- STANDARD CASSON PRINTOUT 51
- 1. Casson (Standard) 52
- 3. Bingham Plastic 52
- 4. Power Law 53
- 5. IPC Paste Analysis 53
- Figure IV-44: Test Screen 55
- Figure IV-45: Run/Data Screen 55
- Figure IV-46: Setup Screen 56
- Figure IV-47: Analysis Screen 56
- Figure IV-48 57
- = shear stress 58
- Figure IV-65 79
- V. OPTIONS 89
- ENTER key 89
- V.4 Set Temperature 91
- V.6 Timed Data Collection 93
- Do Not hit the 96
- CONE with the CUP! 96
- A.3 SETTING THE GAP 97
- Universal Spindle Ranges 99
- Rheometer at 45 RPM 100
- Spindle Speed = 45 RPM 100
- RHEOLOGICAL PROPERTIES 105
- Table D-1 (continued) 108
- (S x T) 112
- +/-) 0.1°C 114
- °C, are shown in Table E-1 114
- Table E-1 115
- °C, 93.3°C, 149°C 115
- Table E-2 115
- + 500) cP = (+/-) 622.57 cP 119
- Figure F-1 121
- DV-III Ultra Stand Assembly 122
- Item Part # Description Qty 122
- 4 hex digits. Calculate the 125
- Zero offset = tval/100 125
- VISCOSITY TEST REPORT 133
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