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The strain unit is designed for the LR8450 data logger. It features strain, voltage, and strain gauge transducers with up to 5 channels as well as 1 ms sampling.
The strain unit is designed for the LR8450 data logger. It features strain, voltage, and strain gauge transducers with up to 5 channels as well as 1 ms sampling.
Features
| Connectable Instruments | Memory HiLogger LR8450 (Designed for use with plug-in units only) Memory HiLogger LR8450-01 (Wireless LAN model) |
| Temperature and Humidity | Operating: 14 to 122°F (-10 to 50°C), 80% RH or less (no condensation) Storage: -4 to 140° (-20 to 60°C), 80% RH or less (no condensation) |
| Vibration resistance | JIS D 1601:1995 5.3(1), Class 1A (passenger vehicle) equivalent |
| Input | Number of channels: Five (able to set voltage or strain for each channel) Terminals: Push-button type terminal block (five terminals per channel), outfitted with terminal block cover (set DIP switches according to measurement target) Type: Balanced differential input, simultaneous sampling of all channels (non-isolated channels) Resistance: 2 MΩ ±5% |
| Measurement Target | Voltage Strain: Strain gage 1-gage method (2-wire setup), 1-gage method (3-wire setup), 2-gage method (adjacent sides), 4-gage method Strain gauge transducer |
| Adaptive Gage Resistance | 1-gage method 2-gage method: 120 Ω (external bridge box required for 350 Ω) 4-gage method: 120 Ω to 1 kΩ |
| Gage Ratio | 2.0 (fixed) |
| Bridge Voltage | 2 V ±0.05 V DC |
| Balance Adjustment | Method: Electronic auto-balancing Range voltage: ±20 mV or less (1 to 20 mV f.s. range), ±200 mV or less (50 to 200 mV f.s. range) Strain: ±20,000 με or less (1000 to 20,000 με f.s. range), ±200,000 με or less (50,000 to 200,000 με f.s. range) |
| A/D Resolution | 16 bit |
| Maximum Voltage | Input: ±0.5 V DC (maximum voltage between input terminals without causing damage) Channel-to-channel: Non-isolated (all channels share common GND) Rated terminal-to-ground: 30 Vrms AC or 60 V DC (maximum voltage between input channel and chassis without causing damage) |
| Data Refresh Interval | 1 ms to 10 s (13 selectable levels) |
| Low-Pass Filter | Cut-off frequency: -3 dB ±30% Auto, 120, 60, 30, 15, 8, 4 (Hz) Auto: Cut-off frequency of low-pass filter is automatically set based on set data refresh interval Attenuation characteristics: 5th-order butterworth filter, -30 dB/oct |
| Dimensions | Approximately 5.28 × 2.76 × 2.48" (134 × 70 × 63 mm) |
| Mass | Approximately 8.3 oz (236 g) |
| Connectable Instruments | Memory HiLogger LR8450 (Designed for use with plug-in units only) Memory HiLogger LR8450-01 (Wireless LAN model) |
| Temperature and Humidity | Operating: 14 to 122°F (-10 to 50°C), 80% RH or less (no condensation) Storage: -4 to 140° (-20 to 60°C), 80% RH or less (no condensation) |
| Vibration resistance | JIS D 1601:1995 5.3(1), Class 1A (passenger vehicle) equivalent |
| Input | Number of channels: Five (able to set voltage or strain for each channel) Terminals: Push-button type terminal block (five terminals per channel), outfitted with terminal block cover (set DIP switches according to measurement target) Type: Balanced differential input, simultaneous sampling of all channels (non-isolated channels) Resistance: 2 MΩ ±5% |
| Measurement Target | Voltage Strain: Strain gage 1-gage method (2-wire setup), 1-gage method (3-wire setup), 2-gage method (adjacent sides), 4-gage method Strain gauge transducer |
| Adaptive Gage Resistance | 1-gage method 2-gage method: 120 Ω (external bridge box required for 350 Ω) 4-gage method: 120 Ω to 1 kΩ |
| Gage Ratio | 2.0 (fixed) |
| Bridge Voltage | 2 V ±0.05 V DC |
| Balance Adjustment | Method: Electronic auto-balancing Range voltage: ±20 mV or less (1 to 20 mV f.s. range), ±200 mV or less (50 to 200 mV f.s. range) Strain: ±20,000 με or less (1000 to 20,000 με f.s. range), ±200,000 με or less (50,000 to 200,000 με f.s. range) |
| A/D Resolution | 16 bit |
| Maximum Voltage | Input: ±0.5 V DC (maximum voltage between input terminals without causing damage) Channel-to-channel: Non-isolated (all channels share common GND) Rated terminal-to-ground: 30 Vrms AC or 60 V DC (maximum voltage between input channel and chassis without causing damage) |
| Data Refresh Interval | 1 ms to 10 s (13 selectable levels) |
| Low-Pass Filter | Cut-off frequency: -3 dB ±30% Auto, 120, 60, 30, 15, 8, 4 (Hz) Auto: Cut-off frequency of low-pass filter is automatically set based on set data refresh interval Attenuation characteristics: 5th-order butterworth filter, -30 dB/oct |
| Dimensions | Approximately 5.28 × 2.76 × 2.48" (134 × 70 × 63 mm) |
| Mass | Approximately 8.3 oz (236 g) |
