DLight
灵活通用的数据采集器
Stevens DLight是一款灵活通用的数据采集器，也是一款设计理想，用于需
要进行小容量输入和输出的简单应用程序。配备电涌、防雷保护装置，有助
于对雷电发生地区的灵敏装置进行保护。
支持对 0-5VDC、4-20mA、翻斗式脉冲和SDI-12输入的测量，记录和报告
的时间间隔为可编程的。DLight为24VDC回路供电提供足够的电流，从而驱
动传感器工作。
DLight支持连接遥测技术，通过RS-232端口对移动终端、UHF/
VHF、或卫星系统进行报告。
- 输入：模拟、脉冲、SDI-12（12个SDI-12传感器）
- 输出：V-out、报警、RS-232
- 遥测配置简单
- 配备可存储2G采样数据的SD卡
- 多语言Windows软件，易安装、易诊断、提供表格式分析 和数据输出
- 用户可对频道和参数名称进行控制
技术参数
Key Features |
|
|---|---|
|
Processor |
16-bit TI MSP430, and two 16-bit dsPIC microprocessors |
|
On-board data storage |
2 GB internal FLASH storage, plus removable 2 GB on SD memory card |
|
Non-volatile memory |
All setup parameters and clock, lithium battery backup |
|
Real-time clock |
Accurate to ±1 minute/month, leap year correction |
|
Watchdog timer |
System resets upon microprocessor failure |
|
Digital to analog (0-5 VDC) output |
12-bit resolution |
|
Serial ports |
|
|
Power requirements |
9.6 to 16 VDC, 7 mA standby current (telemetry system will require additional power) |
|
Logging interval |
1 minute to 24 hours |
|
Message size |
6 - 340 bytes typical |
Sensor Input |
|
|
Sensor input selections |
4 analog channels, single-ended |
|
Accuracy & resolution |
0.01% accuracy, 0.002% resolution |
|
Analog to digital (0-5 VDC) |
21-bit resolution |
|
Pulse counter |
Input type: pulse |
|
Serial |
Input type: SDI-12 (up to 12 sensors) |
|
Switched excitation voltage |
24V/5W for 4-20mA sensor power |
Environmental |
|
|
Temperature and humidity |
Operating: -40°F to 158°F (-40°C to 70°C) |
|
Physical size |
5.53" x 3.06" x 1.95" (14.05 cm x 7.77 cm x 4.96 cm) |
Stevens Water Monitoring Systems, Inc. | Portland, OR, USA