Technical Specifications
| Analog input |
| Product model |
SRR3238 |
| Rated voltage of bus input power supply |
5VDC（4.5V~5.5V） |
| Rated current of bus input power supply |
≤30mA |
| Number of input points |
8 |
| Input type |
Current type |
| Input signal |
Disable、4mA~20mA、0mA~20mA(adjustable range, 0mA~20mA by default) |
| Input signal type |
Single-ended signal |
| Channel response time |
560us / ch770us / 8ch |
| Resolution |
16bits |
| Sampling rate (all channels) |
≤1ksps |
| Precision |
±0.1% at 25°C, ±0.3% across full temperature range |
| Input filtering |
Supported |
| Smoothing level |
1~200 |
| Input impedance (voltage type) |
- |
| Input impedance (current type) |
≤100Ω |
| Maximum allowable channel voltage (voltage type) |
- |
| Maximum allowable channel current (current type) |
30mA |
| The system shall not be affected |
When the ±15V power supply is damaged or short-circuited, the +5V power supply for the system shall not be affected |
| Potential isolation |
No isolation between channels, isolation between channels and backplane bus, and isolation between channels and power supply voltage |
| Input overload protection |
Support current limiting protection |
| Input protection |
±30mA |
| Isolation withstand voltage |
500VDC |
| Rated current consumption |
30mA |
| Power consumption |
0.15W |
| Channel indicator |
Green LED |
| General technical specifications |
| Specifications and dimensions |
4-channel: 100×16.11×80mm |
| 8-channel: 100×26.7×80mm |
| Weight |
4-channel: 70g |
| 8-channel: 130g |
| Operating temperature |
-20℃~+60℃ |
| Storage temperature |
-40℃~+80℃ |
| Relative humidity |
95%, no condensation |
| Altitude |
≤2000m |
| Pollution level |
Level 2 |
| Protection class |
IP20 |
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SRR3238 | Analog 8 channel Current Input Module
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Indicator Description
Last modified: 2025-11-06
