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technical article
Several wiring methods of paperless recorder
2011-10-14 9:21:45

4 线性电压 0-5V 1-5V 接线方法 为: 仪表通道A 端子 接电压正端 仪表通道B 端子 线 负端。 The paperless recorder 's 4 linear voltage 0-5V or 1-5V wiring method is: the instrument channel A terminal is connected to the positive voltage terminal , and the instrument channel B terminal is connected to the negative terminal.

通讯线的连接 为: RS-485 通讯线的连接 The connection of the paperless recorder communication line is: RS-485 communication line connection . 往往 允许 超越1000 米。 The length of communication lines is often not allowed to exceed 1000 meters. 大于100 米的通讯线长度条件下进行通讯时,请使用屏蔽双绞线 作为 RS485 通讯线。 If communication is performed under the communication cable length of more than 100 meters, please use shielded twisted pair as the RS485 communication cable. 阻值 应为 120 欧姆的 In order to reduce echo and reflection, it is necessary to increase the termination matching resistance . The resistance value should be 120 ohms . 终端匹配电阻 Termination resistance should be added to the farthest ends of the RS485 communication line .

通讯线的连接 为: RS-232 通讯线的 作为 连接 The connection of the paperless recorder communication line is: The RS-232 communication line is used as the connection . ,因此不仅能与 计算机之间进行通信 ,也可以与 串行打印机等外部设备进行通讯。 The RS232 communication interface is located on the reverse side of the instrument , so it can not only communicate with the computer , but also communicate with external devices such as serial printers. ,一般 不能超越10 米。 The length of the communication line is generally within 3 meters , and generally cannot exceed 10 meters.

电源线的连接 为:金湖东祥仪表有限公司 生产的 无纸记录仪 ( 包括 真彩 无纸记录仪、 中长图真彩 无纸记录仪、 增强型彩色 无纸记录仪 、增强型单色无纸记录仪、基本型无纸记录仪、灵巧型无纸记录仪 迷你型 无纸记录仪等 类仪表) 供电电源 AC85~265V 范围内 可以 正常工作 ,以 GNDFG 维护地 The connection of the power cord of the paperless recorder is: Paperless recorders produced by Jinhu Dongxiang Instrument Co., Ltd. (Enhanced monochrome paperless recorder, basic paperless recorder, smart paperless recorder, mini paperless recorder, etc. ) The power supply can work normally within the AC85 ~ 265V range. . Connect NL to the NL on the power connector on the rear panel of the meter . 有效的防止静电干扰 GNDFG 接到大地 可。 In order to effectively prevent electrostatic interference , connect GNDFG to a large place . 后应先 检查仪表是否正常, 有异常 的情况下, 先解决异常再 连接输入信号线。 After connecting the power supply , you should check whether the meter is normal. In the case of abnormality , please resolve the abnormality before connecting the input signal line.

为:( 1 热电阻接线方法:仪表通道D 端子 接电阻一端 仪表通道BC 端子 接另外两端 仪表通道B 端子 接负端。 The signal wires are connected as follows: ( 1 ) Thermal resistance wiring method: the instrument channel D terminal is connected to one end of the resistor , the instrument channel BC terminal is connected to the other two ends , and the instrument channel B terminal is connected to the negative terminal. 2 热电偶接线方法:表通道C 端子 接仪热电偶正端。 ( 2 ) Thermocouple wiring method: Connect the C terminal of the meter channel to the positive end of the thermocouple of the instrument.

使线性电流转换为线性电压 3 线性电流 0-10mA 4-20mA 接线方法 为: 仪表通道AB 端子之间并联 500 欧姆或 250 欧姆的规范电阻。 Finally, the paperless recorder is used to convert the linear current into a linear voltage . 3 The linear current is 0-10mA or 4-20mA. The wiring method is: connect 500 ohm or 250 ohm standard resistance in parallel between the instrument channel AB terminals . 线性电压 相同 The remaining connections are the same as for linear voltage .