熱電偶模塊

熱電偶輸入（TC）模塊

包括三個獨立的輸入通道。每個輸入通道從每個點接收可變電壓信號，

執(zhí)行熱電偶線性化

和冷端補償，以及

將結(jié)果轉(zhuǎn)換為攝氏度或

華氏的然后，每個通道發(fā)送16位有符號整數(shù)，表示

每計數(shù)三次0.125度

主處理器隨需應(yīng)變。在TMR中

模式，然后使用

保證中值選擇算法

每次掃描的正確數(shù)據(jù)。

每個熱電偶輸入模塊

可編程以支持從J、K和T中選擇的一種熱電偶類型

用于標準熱電偶輸入

模塊和來自J、K、T和E的

任何診斷失敗

通道激活故障指示器，

從而激活底盤

報警信號。模塊故障指示燈僅報告通道故障，而不是

模塊故障。模塊繼續(xù)

最多兩個能正常工作

故障通道。

熱電偶輸入模塊

支持熱備盤功能

允許在線更換故障

模塊。熱電偶輸入

模塊需要單獨的外部

帶電纜的終端面板

Tricon背板的接口。

每個模塊都通過機械鍵連接

防止在

配置的機箱。

隔離熱電偶輸入模塊。

隔離模塊允許用戶

選擇高檔或低檔倦怠

使用TriStation軟件進行檢測。

對于非隔離模塊，高檔或

小型燃盡檢測取決于

在選定的字段終止上。

三聯(lián)式溫度傳感器

位于現(xiàn)場終端面板上

支持冷接點補償。

熱電偶輸入的每個通道

模塊使用執(zhí)行自動校準

內(nèi)部精密電壓參考。

在隔離模塊上，故障冷功能傳感器由

前部冷接點指示燈

面板

每個模塊執(zhí)行完整

每個通道上正在進行的診斷

Thermocouple Modules

A thermocouple input (TC) module

includes three independent input channels. Each input channel receives variable voltage signals from each point,

performs thermocouple linearization

and cold-junction compensation, and

converts the result to degrees Celsius or

Fahrenheit. Each channel then transmits 16-bit signed integers representing

0.125 degrees per count to the three

main processors on demand. In TMR

mode, a value is then selected using a

mid-value selection algorithm to ensure

correct data for every scan.

Each thermocouple input module is

programmable to support one thermocouple type, selected from J, K and T

for standard thermocouple input

modules and from J, K, T and E for

Failure of any diagnostic on any

channel activates the Fault indicator,

which in turn activates the chassis

alarm signal. The module Fault indicator merely reports a channel fault, not

a module failure. The module continues

to operate properly with as many as two

faulty channels.

The thermocouple input module

supports hot-spare capability which

allows online replacement of a faulty

module.The thermocouple input

module requires a separate external

termination panel (ETP) with a cable

interface to the Tricon backplane.

Each module is mechanically keyed to

prevent improper installation in a

configured chassis.

isolated thermocouple input modules.

The isolated module allows users to

select upscale or downscale burnout

detection with the TriStation software.

For non-isolated modules, upscale or

downscale burnout detection depends

on the field termination selected.

Triplicated temperature transducers

residing on the field termination panel

support cold-junction compensation.

Each channel of a thermocouple input

module performs auto-calibration using

internal precision voltage references.

On the isolated module, a faulting coldjunction transducer is annunciated by a

cold-junction indicator on the front

panel.

Each module performs complete

ongoing diagnostics on each channel