Appendix a. microcell™ specifications – Kistler-Morse KM Microcell Bolt-On User Manual
Page 36
APPENDIX A. MICROCELL™ SPECIFICATIONS.
MECHANICAL
Stress Level
3” Microcell™
Maximum
10,000 psi (7.0kg/mm
2
)
Recommended*
5,000 psi ± 2,500 psi (3.5kg/mm
2
± 1.75kg/mm
2
)
2” Microcell™
Maximum
15,000 psi (10.5kg/mm
2
)
Recommended*
7,500 psi ± 3,750 psi (5.3kg/mm
2
± 2.6kg/mm
2
)
Fatigue Life
> 20 million cycles; load and unload at 0 to 5,000 psi
(0kg/mm
2
to 3.5kg/mm
2
)
*Consult factory for application assistance for stress levels outside the recommended range.
ELECTRICAL
Excitation Voltage
Standard 12VDC, ±5%; maximum 30VDC
Excitation Current at 12V
4.0mA at 0° F (-18° C) to 2.7mA at 100° F (+38° C)
Insulation Resistance
2kΩ
Strain Gage to Sensor Frame
Breakdown Voltage
> 500VDC
Red-to-White and Black-to-White Resistance
3” Microcell™
Standardized: 8.50kΩ ± 200Ω at 70° F (21° C)
Non-Standardized: 2.0kΩ ± 200Ω at 70° F (21° C)
2” Microcell™
2.0kΩ ± 200Ω at 70° F (21° C)
OUTPUT FOR 12V EXCITATION
Sensitivity
3” Microcell™
70mV ± 1%/1,000 psi (70mV ± 1%/0.7kg/mm
2
)
2” Microcell™
56mV ± 1%/1,000 psi (56mV ± 1%/0.7kg/mm
2
)
Zero-Strain Output
0mV ± 25mV
Non-linearity
±0.1% of full-scale output
Repeatability and Hysteresis
0.05% of full-scale output
Output Impedance
3” Microcell™
Standardized: 7.5kΩ ± 75Ω at 70° F (21° C)
Non-Standardized: 1.0kΩ ± 100Ω at 70° F (21° C)
2” Microcell™
1kΩ ± 100Ω at 70° F (21° C)
ENVIRONMENTAL
Rating
Designed for rugged, outdoor applications
Temperature Range
Operational
-30° F to +150° F (-34° C to +66° C)
Storage
-30° F to +150° F (-34° C to +66° C)
Compensated
Standard: 0° F to +100° F (-18° C to +38° C)
Mid: +50° F to +150° F (+10° C to +66° C)
Temperature Effects
Sensitivity Change
0.02%/° F (0.036%/° C), in compensated temperature range
Zero Shift
±5mV/100° F (±5mV/56° C), in compensated temperature range
PHYSICAL
Weight
3 oz (90g)
Cable
3-conductor, 22 gauge, unshielded
Steel Base
AISI 1018 carbon steel matched to A36
Aluminum Base
Custom — consult factory
Stainless Steel Base
Custom — consult factory
Cable Length
5.5 ft (1.7m)
Size
See Reference Dimensions
32