称重传感器

LAC65.1 模拟放大器/桥接放大器

品牌：美国Cooper

型号：LAC65.1

类别：模拟放大器/桥接放大器

 

·高稳定性

·双极电压输出±10v

·电流输出0-20或4-20毫安

·最多可驱动8个350欧姆称重传感器或24个1000欧姆称重传感器

·High stability

·Bipolar voltage output ±10v

·Current output 0-20 or 4-20ma

·Can drive up to 8 pc 350 ohm load cells or 24 pc 1000 ohm load cells

 

特征Features:

·在恶劣的工业环境中具有极高的稳定性和可靠性.

·双极电压输出（±10V）和电流输出0-20或4-20mA，可同时输出.

·可驱动8个350欧姆负载传感器或24个1000欧姆负载传感器.

·宽范围的增益几乎没有零漂移，使活范围降低到称重传感器额定值的百分之几.

·宽范围的低通输入滤波，从33到0.33Hz，以满足任何要求.

·交流励磁电压（425Hz）消除了电磁干扰和电气连接不良的热电效应.

·低2.5V的励磁电压有效地防止了称重传感器的预热误差.

·前端和LED指示灯的布局简化了设置和校准.

·Extreme stability and reliability in adverse industrial environments.

·Both Bipolar voltage output (±10V) and current output 0-20 or 4-20mA, with ability for simultaneous output.

·Can drive up to 8 Pc 350 ohm load cells or 24 Pc 1000 ohm load cells.

·Wide range of gain with virtually no zero drift enables a live range down to a few percent of the load cell’s rating.

·Wide range of the low pass input filtering from 33 to 0.33Hz to meet any requirement.

·AC excitation voltage (425Hz) cancels interference from EMI and thermal-electric effects from poor electrical connection.

·Low 2.5V excitation voltage effectively prevent load cell warm up errors.

·The layout of the front and the LED indicators simplifies set-up and calibration.

 

规格Specifications：

输入Input
线性度Linearity	<0.005%满量程
励磁电压excitation voltage	2.5伏交流电425赫兹
驱动能力drive capability	RLC 40-2000欧姆
接线系统wiring system	6线包含感测
全输出输入范围inputrangeforfull output	±0.17MV/V±3.3MV/V
输入分辨率input resolution	<100 nV（2 mV/V输入时的增量大于50000
零/增益Zero/Gain
零点，二进制增量Zero coarse, binary increments	±2.4mV/V，32英寸。每0.075mV/V输入
零微调，25转电位计Zerofinetrim,25turn potentiometer	0.1mV/v，微调分辨率<0.5uV/v
二进制增量Gaincoarse, binary increments	相对于32英寸，每1个*
获得微调，25转电位计Gain fine trim, 25 turn potentiometer	1-2*微调分辨率<0.005*
可选增益集Optional gain set	10*-320个*
零点/增益变化对零的影响 Zero/Gain change influence on zero	0.045%FS/1*增益变化
输入过滤器Input filters
一级过滤器：固定二级First filter: Fixed 2nd order	32Hz截止频率（5ms）
第二过滤器：可调一阶Second filter: Adjustable 1st order	32-0.25Hz截止频率（5ms-640ms）
模拟输出Analog output
电流输出范围Current output range	0-20毫安或4-20毫安（反向电流保护）
电压输出范围Voltage output range	0-﹢0伏直流电
总则General
输出与输出之间的偏差Off-set deviation between VOUT and IOUT	<2%
获得VOUT和IOUT之间的偏差Gain deviation between VOUT and IOUT	<2%
电源Power supply	12-24Vdc≤15%纹波；隔离≤3瓦
电源隔离Isolation of the Power source	>10 MΩ0.5kV
影响Influences
温度对零平衡的影响Temperature effect on Zero	典型值为10 ppm/℃K，最大值为25 ppm/℃K
温度对环境的影响Temperature effect on Span	典型15 ppm/℃K，最大30 ppm/℃K
温度范围Temperature range	工作温度：-20°C/+50°C；储存温度-30°C/+60°C
相对湿度Relative humidity	0-95%无冷凝
电磁干扰EMI	10V/m（1-1000MHz）IEC801-1 2级
突发（瞬变）Burst (Transients)	IEC 801-4（2级）
静电放电满足Electrostatic discharge to meet	IEC 801-2（3级）
一般I/O保护，所有引脚General I/O protection, all pins	反极性、过电压和浪涌
振动Vibration	2.5g运行；5g非运行
保护、环境Protection, environment	IP40级
安装Mounting
提供通用的DIN轨夹Universal DIN-rail clips is provided	15至35mm C或帽子轮廓
尺寸Dimensions	114mm长 x 77mm宽 x 35mm高
重量Weight	净重130克（4.6盎司）
I/O引脚I/O pins	6个螺纹端子，螺距3.81mm

产品描述

LAC65.1型是一种通用模拟放大器，用于在不利的工业电压输出中进行静态/半静态称重。它可以安装在各种DIN导轨上，并使用坚固的终端进行无忧连接。

Model LAC65.1 is a universal analog amplifier for static/semi-static weighing applications in adverse industrial voltage outputs. It can be mounted to a variety of DIN rails and uses robust terminals for worry free connections.

交流负载传感器的激励电压保证了持久的稳定性，这对模拟放大器至关重要。交流电压具有降低电磁干扰和抑制热电效应的优点。电压和电流输出同时可用，可在不同位置实现双读数。低励磁电压允许低电桥电阻（40）防止热漂移误差。增益和零点调整互不影响。使用DIP开关和精密25圈电位器，可最大限度地提高调节分辨率。LAC65.1具有宽的输入电压范围和隔离的电源，提供优越可靠的运行。自1998年生产以来，LAC65.1一直被全世界成千上万的客户使用并继续依赖。

The AC load cell excitation voltage assures lasting stability which is critical for analogue amplifiers. The AC voltage provides the advantage of EMI mitigation as well as suppression of the effects from thermal-electric effects. Both voltage and the current outputs are available simultaneously enabling dual readouts at separate locations. Low excitation voltage allows for low bridge resistance (40) preventing errors from thermal drift. Gain and zero adjustments do not affect each other. With the use of DIP-switches and precision 25 turn potentiometers, resolution of adjustments are maximized. With the wide input voltage range and isolated power supply, the LAC65.1 provides superior and reliable operation. Being manufactured since 1998, the LAC65.1 has been used and continues to be relied upon by thousands of customers worldwide.