Description
Specifications
| Parameter | Value |
|---|---|
| Number of analog input channels | 4 |
| Number of analog output channels | 1 |
| IEPE channel | 4-channel (built-in the collection front end ) |
| IEPE power supply | 4mA |
| Product dimensions L*W*H (mm) | 24 × 142 × 100 (excluding BNC connectors and positioning pillar length) |
| Interface type | BNC |
| Operating temperature | -20℃ - 50℃ |
| Coupled mode | AC/DC |
AI Specifications
AI Parameters | |
ADC Precision | 24 Bit |
ADC Type | Δ-Σ |
Sample Rate Range Hz | 1k - 192k |
| FIFO | 1024 |
Mode Of Data Transmission | DMA |
Input Range | +/- 5Vrms (Measurement ranges 1Vrms、5Vrms) |
Input Impedance | Input Positive Terminal to Ground: 200Kohm |
| Gain Error | AC coupling +/-0.03 dB DC coupling +/-0.01 dB |
| Flatness | 20Hz - 20kHz,Value 0.09dB 5Hz - 50kHz, Maximum Value 0.08dB |
AI Idle noise (uVrms) | ||
| Sample Rate | fs=48kS/s | fs=96kS/s |
| Maximum Value | 8 | 11 |
| PS:[1]Short-circuit source impedance less than 50 ohms,Operating temperature of 23±5 degrees Celsius,AC coupling,Linear weighting,1Vrms | ||
AI SNR (dB) | ||
| Sample Rate | fs=48kS/s | fs=96kS/s |
| Maximum Value | 104 | 101 |
PS:[1]Single-ended Input,AC Coupling,Input Signal of 1kHz Sine Wave,5Vrms Range,2.5Vrms [2] Bandwidth 22.4k、45k [3] Linear Weighting | ||
AI Dynamic Range (dB) | ||
| Sample Rate | fs=48kS/s | fs=96kS/s |
| Maximum Value | 110 | 110 |
PS:[1]Single-ended Input,AC Coupling,Input Signal of 1kHz Sine Wave,5Vrms Range,2.5Vrms [2] Bandwidth 22.4k、45k [3] Linear Weighting,SFDR Testing Method | ||
AI THD+N (dB) | ||
| Sample Rate | fs=48kS/s | fs=96kS/s |
| Maximum Value | -102 | -99 |
PS:[1] Single-ended Input,AC Coupling,Input Signal of 1kHz Sine Wave,5Vrms Range,2.5Vrms [2] Bandwidth 22.4k、45k [3] Linear Weighting,SFDR Testing Method | ||
AI THD (dB) | ||
| Sample Rate | fs=48kS/s | fs=96kS/s |
| Maximum Value | -109 | -109 |
PS:[1] Single-ended Input,AC Coupling,Input Signal of 1kHz Sine Wave,5Vrms Range,2.5Vrms [2] Bandwidth 22.4k、45k [3] Linear Weighting | ||
AO Specifications
AO Parameters | |
DAC Precision | 24 Bit |
Sample Rate Hz | 1k - 192k |
Output Range | +/- 5Vrms (Measurement ranges 1Vrms、5Vrms) |
Gain Error | AC : +/- 0.03dB DC : +/-0.1dB |
Output Impedance | Input Positive Terminal to Ground: 75 ohm |
Flatness | 20Hz - 20kHz,Maximum Value 0.1dB 5Hz - 50kHz, Maximum Value 0.15dB |
AO Idle noise (uVrms) | ||
| Sample Rate | fs=48kS/s | fs=96kS/s |
| Maximum Value | 20 | 28 |
| PS:[1]Data Acquisition Device Impedance Greater Than 1 Mohm,Working temperature 23±5℃,1Vrms gear | ||
AO SNR (dB) | ||
| Sample Rate | fs=48kS/s | fs=96kS/s |
| Minimum Value | 98 | 95 |
PS:[1]Single-ended Output,AC Coupling,Output Signal of 1kHz Sine Wave,5Vrms range,2.5Vrms [2]Bandwidth 22.4k、45k [3]Linear Weighting | ||
AO Dynamic Range (dB) | ||
| Sample Rate | fs=48kS/s | fs=96kS/s |
| Minimum Value | 102 | 101 |
PS:[1]Single-endedOutput,AC Coupling,Output Signal of 1kHz Sine Wave,5Vrms range,2.5Vrms [2]Bandwidth 22.4k、45k [3]Linear Weighting,SFER Testing Method | ||
AO THD+N (dB) | ||
| Sample Rate | fs=48kS/s | fs=96kS/s |
| Maximum Value | -100 | -97 |
PS:[1]Single-ended Output,AC Coupling,Output Signal of 1kHz Sine Wave,5Vrms range,5Vrms [2]Bandwidth 22.4k、45k [3]Linear Weighting | ||
AO THD+ (dB) | ||
| Sample Rate | fs=48kS/s | fs=96kS/s |
| Maximum Value | -120 | -122 |
PS:[1]Single-ended Output,AC Coupling,Output Signal of 1kHz Sine Wave,5Vrms range,5Vrms [2]Bandwidth 22.4k、45k [3]Linear Weighting | ||
Dimension(unit:mm)

Ordering Information
| PN | Model | Description |
| 931006-01 | LR 618A | Data Acquisition Card |
| 931002-01 | LR 101A | AC Power Adapter |
| 931001-01 | LR 128U | 8‑slot Base, USB Bus |
| 730002-030 | 102A030 | BNC Plug to BNC Plug,cable jacket diameter 1.9mm,blue PFA low noise cable,high temperature resistance 250℃, length 3.0m |
| 730002-060 | 102A060 | BNC Plug to BNC Plug,cable jacket diameter 1.9mm,blue PFA low noise cable,high temperature resistance 250℃, length 6.0m |
| 730002-090 | 102A090 | BNC Plug to BNC Plug,cable jacket diameter 1.9mm,blue PFA low noise cable,high temperature resistance 250℃, length 9.0m |
| 730002-000 | 102A000 | BNC Plug to BNC Plug,cable jacket diameter 1.9mm,blue PFA low noise cable,high temperature resistance 250℃, Customizable length |



