概述

称重显示器，是电子衡器中显示被称物的质量和称量状态的仪表，其原理是接受处理的是称重传感器输出的电信号。电信号有模拟量也有数字量，常见的是几至几十毫伏的模拟电压。激励电源供给称重传感器工作电源，同时供给A/D（模/数）转换单元基准电压，A/D转换单元把模拟量转换成数字量，然后以数字、文字或图表等形式显示出称量值和称量状态，并可通过接口与外部设备联络。

传感器连接

4个传感器，350Ω

5 VDC at 65 mA max. +/-2%, 10 VDC at 125 mA max. +/-2%

防护等级

Housing: IP 20

Panel mounted: IP 65

电源供电

85-250 VAC 50/60 Hz

11-36 VDC or 24 VAC (Option)

Max. power consumption: 15 VA

显示

Bright 5-digit LED display, 14 mm

Status symbols: brutto|gross, net, tare

Setpoint indication

键盘

5 keys for operation, calibration and

configuration

传感器激励

Jumper selectable:

5 VDC at 65 mA max. +/-2%

10 VDC at 125 mA max. +/-2%

Max. four load cells of 350 O

Temperatur coefficient: 20 ppm/K max.

数字控制输入

3 configurable user inputs (TTL)

Input voltage: max. 30 VDC

Sink or source (aktiv | passiv) selectable

Sink: high Vin < 0.7 VDC, low Vin > 2.5 VDC

Source: high Vin > 2.5 VDC, low Vin < 0.7 VDC

刷新率

Step response: 200 msec. max. to

within 99 % of final readout value

(digital filter and internal zero

correction disabled)

700 msec. max. (digital filter disabled,

internal zero correction enabled)

环境条件

Operating temperature range: 0 to 50°C

(0 to 45°C with all three plug-in cards

installed)

Storage temperature range: -40 to 60°C

Humidity: 0 to 85% max. non-condensing

模拟数字转换

Resolution: 16 bit

A/D Conversion rate: 20 readings/sec.

手动去皮

Configurable via front keys