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| Brand | Campbell Scientific |
|---|---|
| Origin | USA |
| Model | CR3000 |
| Analog Input Channels | 28 single-ended (14 differential) |
| Analog Voltage Range | ±5000 mV |
| Analog Resolution | 0.33 µV |
| A/D Resolution | 16-bit |
| Maximum Scan Rate | 100 Hz |
| Pulse Count Channels | 4 |
| Switched Excitation Outputs | 4 voltage, 3 current |
| Control Ports | 3 SDM, 8 I/O |
| Communication Interfaces | CS I/O, RS-232, Ethernet (optional), RF radio (optional), CDMA/GPRS (optional), satellite (optional) |
| Supported Protocols | PakBus, Modbus RTU/ASCII/TCP, DNP3, FTP, HTTP, XML, POP3, SMTP, Telnet, NTP, NTCIP, SDI-12, SDM |
| Memory | 4 MB internal |
| Power Consumption | 2 mA (sleep), 3 mA (1 Hz), 10 mA (100 Hz) |
| Environmental Compliance | CE, EMC, GDT input protection |
| Real-Time Clock | Temperature-compensated, battery-backed |
| Data Storage Format | Tabular (timestamp + record number) |
| Operating Temperature | 0–40 °C |
| Software Compatibility | LoggerNet 3.4/4.0, PC400 1.2, ShortCut 2.2 |
| Brand | Campbell Scientific |
|---|---|
| Origin | USA |
| Model | CR6 |
| Processor | 32-bit ARM Cortex-M4 with hardware floating-point unit (100 MHz) |
| Internal Memory | 4 MB RAM, 6 MB flash for OS, 1 MB serial flash for program execution |
| MicroSD Card Support | Up to 16 GB |
| Real-Time Clock Accuracy | ±3 minutes/year (±10 µs with GPS synchronization) |
| USB Interface | USB 2.0 Full-Speed (12 Mbps), host/device capable |
| Ethernet | 10/100BASE-T |
| Communication Protocols | PakBus, SDI-12, SDM, RS-232, RS-485, CPI (Campbell Peripheral Interface) |
| U-Port Capabilities | Simultaneous analog/digital input, static vibration measurement (100 Hz – 6.5 kHz), bridge excitation (±2.5 V or ±2.5 mA), thermistor support (5 kΩ reference), frequency measurement up to 200 kHz |
| Analog Input | 12 single-ended or 6 differential channels |
| ranges | ±5000 mV, ±1000 mV, ±200 mV |
| Analog Output | 12-bit DAC (±2.5 V or ±2.5 mA) |
| Digital I/O | 12 configurable ports (3.3 V / 5 V logic) |
| Power Input | 12 V DC battery, solar (16–32 V DC), or USB |
| SW12V outputs | 2 × 12 V @ 1100 mA (20 °C) |
| Overvoltage Protection | All terminal strips include transient voltage suppression |
| Operating Temperature | −25 °C to +50 °C (extended range options available) |
| Dimensions | 20.3 × 10.2 × 6.1 cm |
| Weight | 0.42 kg |
| Compliance | CE, FCC Part 15 Class B, RoHS |
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