型号:AI820
货号 :3BSE008544R1
系列:S800系列
类别: 模拟量输入模块
成色:全新,非全新
质保:一年
库存:有
品牌:ABB
尺寸
宽度 45毫米(1.77英寸)
深度 102 mm (4.01“), 111 mm (4.37”) 包括连接器
高度 119毫米(4.7英寸)
重量 0.2 千克(0.44 磅)
信号规格: -20..+20 毫安, 0(4)..20 毫安, -10..+10 V, 0(2)..10 伏
通道数: 4
信号类型: 双极性差分
AI820 模拟量输入模块有 4 个差分双极性电流/电压输入。每个通道可以是电压输入或电流输入。电流输入可以承受意外的最大正常模式 30 V 直流连接。为了保护电流输入电路免受危险输入电平的影响,即意外连接24 V电源,250W电流检测电阻器的电阻额定值约为5 W。这只是为了一次暂时保护一个频道。
该模块将外部发射器电源分配给每个通道。这增加了一个简单的连接(具有扩展的 MTU),以将电源分配给外部 2 线发射器。发射机电源端子上没有电流限制。
所有 4 个通道都与 ModuleBus 隔离在一个组中。输入级的功率从 ModuleBus 上的 24 V 转换而来。
特点和优势
4 通道用于 -20 ...+20 mA、0...20 mA、4...20 mA、-10 ...+10 V、0...10 V、2...10 V、-5 ...+5 V、0...5 V、1...5 V 直流双极性差分输入
一组 4 个通道,与地面隔离
14 位分辨率加号
输入分流电阻器提供 30 V 直流保护
输入可承受HART通信
Model: AI820
Item number: 3BSE008544R1
Series: S800 series
Category: Analog input module
Finish: New, not new
Warranty: One year
Stock: Yes
Brand: ABB
dimension
Width 45 mm (1.77 in)
Depth 102 mm (4.01 "), 111 mm (4.37 ") including connector
Height 119 mm (4.7 in)
Weight 0.2 kg (0.44 lb)
Signal specification: -20... +20 mah, 0 (4)... 20 mah, -10... +10 V, 0 (2)... 10 volts
Number of channels: 4
Signal type: bipolar differential
The AI820 analog input module has four differential bipolar current/voltage inputs. Each channel can be a voltage input or a current input. The current input can withstand unexpected maximum normal mode 30 V DC connections. In order to protect the current input circuit from dangerous input levels, i.e. accidental connection of a 24 V supply, the resistance rating of the 250W current detection resistor is about 5 W. It's just to temporarily protect one channel at a time.
This module allocates external transmitter power to each channel. This adds a simple connection (with an extended MTU) to distribute power to an external 2-wire transmitter. There is no current limit on the transmitter power terminal.
All 4 channels are isolated from the ModuleBus in a group. The power of the input stage is converted from 24 V on the ModuleBus.
Characteristics and advantages
4 channels for -20... +20 mA, 0... 20 mA, 4... 20 mA, -10... +10 V, 0... 10 V, 2... 10 V, -5... +5 V, 0... 5 V, 1... 5 V DC bipolar differential input
A group of 4 channels, isolated from the ground
14-bit resolution plus sign
Input shunt resistor provides 30 V DC protection
Input can withstand HART communication
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