Kistler-Morse KM L-Cell Bolt-On - Manual (Page 71)

Appendix B. Microcell Specifications
B-1
Appendix B: Microcell Specifications
Mechanical
Stress Level
3-inch Microcell Maximum 10,000 psi (7.0 kg/mm 2 )
Recommended* 5,000 ± 2,500 psi (3.5 ± 1.75 kg/mm 2 )
2-inch Microcell Maximum 15,000 psi (10.5 kg/mm 2 )
Recommended* 7,500 ± 3,750 psi (5.3 ± 2.6 kg/mm 2 )
Fatigue Life > 20 million cycles; load and unload at 0 to 5,000 psi
(0 to 3.5 kg/mm
2 )
*Consult factory for application assistance for stress levels outside the recommended range.
Electrical
Excitation Voltage Standard 12 Vdc, ±5%; maximum 30 Vdc
Excitation Current at 12V 4.0 mA at 0°F (-18°C) to 2.7 mA at 100°F (+38°C)
Insulation Resistance 2M ohms
Strain Gage to Sensor Frame
Breakdown Voltage
>500 VDC
Red-to-White & Black-to-White Resistance
3-inch Microcell Standardized: 8.50K ± 200 ohms at 70°F (21°C)
Non-Standardized: 2.0K ± 200 ohms at 70°F (21°C)
2-inch Microcell 2.0K ± 200 ohms at 70°F (21°C)
Output (for 12V excitation)
Sensitivity
3-inch Microcell 70 mV ± 1%/1,000 psi (70 mV ± 1%/0.7 kg/mm 2 )
2-inch Microcell 56 mV ± 1%/1,000 psi (56 mV ± 1%/0.7 kg/mm 2 )
Zero-Strain Output 0 mV ± 25 mV
Nonlinearity ±0.1% of full-scale output
Repeatability & Hysteresis 0.05% of full-scale output
Output Impedance
3-inch Microcell Standardized: 7.5K ± 75 ohms at 70°F (21°C)
Non-Standardized: 1000 ohms ± 100 ohms at 70°F (21°C)
2-inch Microcell 1000 ohms ± 100 ohms at 70°F (21°C)
Environmental
Rating Designed for rugged, outdoor applications
Temperature Range
Operational -30° to +150°F (-34° to +66°C)
Storage -30° to +150°F (-34° to +66°C)
Compensated Standard: 0° to +100°F (-18° to +38°C)
Mid: +50° to +150°F (+10° to +66°C)
Temperature Effects
Sensitivity Change 0.02%/°F (0.036%/°C), in compensated temperature range
Zero Shift ±5 mV/100°F (±5 mV/56°C), in compensated
temperature range
Physical
Weight 3 oz (90 gm)
Cable 3-conductor, 22 gage, 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’ (1.7m)
Size See Reference Dimensions