Our new and unique style of cooling provides safe and easy cooling of the test fluid to -40� C. This is the only BBR cooling method commercially available for which the recommended Ethylene Glycol/Water/Methanol mixture can be used forthe full range of testing temperatures, providing a safer way to perform the tests.
The test temperature is controlled and monitored by two independent platinum RTD temperature transducers to maintain test bath temperature stability. The mechanical refrigeration system uses environmentally safe (non-CFC) refrigerant to provide long term maintainability.
DEVICE CALIBRATION/ VERIFICATION
The Bending Beam Rheometer incorporates software programs for daily verification and periodic calibration of the load cell, LVDT, and R.T.D. transducers. Calibrated test weights and a certified LVDT calibration standard, traceable to the National Institute of Standards and Testing (NIST), are provided with each system.
Daily verification of the load cell and LVDTtransducers are easily accomplished in a few minutes.
Bath temperature can be verified at any time using an ASTM certified thermometer.
The Bending Beam Rheometer also incorporates a program to verity and eliminate device compliance from the specimen displacement measurements. To verify total system accuracy, a certified confidence test beam is provided with each Rheometer. This stainless steel standard can be used for daily confirmation of the software, electronics, pneumatics, and analysis systems. Deviation from the standard values for this beam indicate the need for calibration or maintenance.
SYSTEM CONFIGURATION
SAMPLE SUPPORTS
- 25mm diameter stainless steel spaced 101.6 mm apart
LOADING SHAFT
In-line stainless steel with blunt loading point.
LOAD CELL
250 gram standard to permit highest resolution at the required loading range (100 gram).
Temperature compensated
Internal mechanical overload protection.
LVDT
6.35 mm calibrated range to provide 2uM resolution throughout test and verification range.
TEST LOAD
Variable test range from 0 to 200 grams standard. System maintains required test load within
�0.5 gram throughout test cycle.
TEST CYCLE TIMES
Cycle times for pre-load, recovery, and test load are completely operator adjustable.
ANALYSIS DATA
Data acquisition points are operator selectable. Default values comply with current
SHRP - B-002 specifications.
DATA DISPLAY
Large on-screen display of load, displacement, and bath temperature provides ease of set-up and operation. Real time displacement, loading, and temperature graphs are displayed during
the test cycle and can be re-plotted and re-scaled at any time.
SYSTEM REQUIREMENTS:
ELECTRICAL
115 V, 50/60 Hz, (220 V, 50 Hz - optional)
COMPRESSED AIR
50 PSIG minimum, clean, dry air ( is not included)