MT2000儀表:
◆ 32位CPU及24位A/D,提供多層次口令保護(hù),提供使額定載荷25%到99%時(shí)精度相同得線性補(bǔ)償;
◆ 準(zhǔn)確度:優(yōu)于0.01%,可選模擬輸出及模擬輸入輸出板,可選標(biāo)準(zhǔn)RS232、RS485通訊板;
◆ MT2000有MT2001、2101、2301、2105型供用戶選擇;
◆ MT2105型儀表具有PID調(diào)節(jié)功能,適用于冶金、電力、化工行業(yè)的配料或配煤系統(tǒng),實(shí)現(xiàn)計(jì)量設(shè)備閉環(huán)自動(dòng)調(diào)節(jié)控制;
◆ MT2101如與角度補(bǔ)償器相連,可在輸送機(jī)傾角改變時(shí)自動(dòng)修正間隔值,進(jìn)行角度補(bǔ)償。
﹡美國(guó)拉姆齊公司MT2000系列儀表主要特點(diǎn)
數(shù)字處理技術(shù): MT2000系列儀表采用數(shù)字信號(hào)處理技術(shù),抵抗電磁干擾能力較強(qiáng),可以提供精確無(wú)漂移的性能
自動(dòng)調(diào)零:在菜單引導(dǎo)下,通過簡(jiǎn)單的操作;儀表可以自動(dòng)計(jì)算并建立新的零點(diǎn),無(wú)須電位器的調(diào)節(jié)和機(jī)械調(diào)零
自動(dòng)調(diào)間隔:在菜單引導(dǎo)下,通過精密電阻校準(zhǔn),掛碼校準(zhǔn),鏈碼校準(zhǔn)或?qū)嵨镄?zhǔn)可以實(shí)現(xiàn)系統(tǒng)間隔的自動(dòng)設(shè)定
校準(zhǔn)時(shí)間自動(dòng)提示:系統(tǒng)根據(jù)設(shè)定的時(shí)間間隔,自動(dòng)提示操作人員對(duì)儀表進(jìn)行校準(zhǔn)。
可編程:MT2000系列儀表設(shè)計(jì)可以用于多種工作場(chǎng)合,為了保證儀表在各種工況下,都能達(dá)到性能,用戶可根據(jù)菜單提示進(jìn)行編程,以滿足儀表在各種工況下的應(yīng)用要求。
濾波時(shí)間:用戶可以根據(jù)應(yīng)用的不同,選擇合適的濾波時(shí)間。
﹡美國(guó)拉姆齊公司MT2000系列儀表技術(shù)參數(shù)
外殼:現(xiàn)場(chǎng)安裝型:尺寸381x330x178mm
面板安裝型:尺寸DIN43700 96x288mm
溫度:工作溫度:-10℃一+50℃
儲(chǔ)存溫度:-40℃一+70℃
電源: 110/120/220/240VAC 50/60 Hz
顯示方式:4行20個(gè)字母(4x20字母或數(shù)字)真空熒光管顯示。
鍵盤:標(biāo)準(zhǔn)數(shù)字鍵,RUN、MENU、SCROLL(上下)、TOTAL、PRINT、START、STOP、CLEAR和三個(gè)執(zhí)行非特定功能的軟鍵,所有按鍵均為薄膜式按鍵,并帶有觸動(dòng)反饋。
狀態(tài)指示:零點(diǎn)校準(zhǔn)、間隔校準(zhǔn)、報(bào)警、批稱重、就緒指示。
測(cè)量單位: 噸、公斤
存儲(chǔ)器:RAM存儲(chǔ)器,自帶銼電池,不易揮發(fā)型。
精度/非線性:在重量載荷0%一105%范圍內(nèi),誤差低于0 .02%
電子線路:CPU 32位微處理器,2 0位A/D轉(zhuǎn)換器,看門狗電路,防止死機(jī)。
擴(kuò)展槽:MT2001具有兩組擴(kuò)展槽,MT2101、MT2301、MT2105具有五組擴(kuò)展槽用于安裝可選的插板
重量:現(xiàn)場(chǎng)安裝型:12.8公斤
面板式安裝:7.8公斤
數(shù)字信號(hào)輸入/輸出:儀表配有多個(gè)可編程的數(shù)字量輸入輸出接口,可接受來(lái)自各種設(shè)備的開關(guān)量信號(hào)輸入,并可以向外部設(shè)備提供信號(hào)指示輸出。
速度輸入:來(lái)自測(cè)速傳感器的單路速度脈沖輸入
數(shù)字信號(hào)輸出:儀表一般用途配有四個(gè)數(shù)字信號(hào)輸出,通過固態(tài)輸出模塊(可選)可提供數(shù)字信號(hào)輸出,該輸出的內(nèi)容可通過儀表進(jìn)行設(shè)定,主要內(nèi)容包括儀表就緒、故障輸出、高低流量等報(bào)警輸出,每一個(gè)數(shù)字信號(hào)輸出需使用一只固態(tài)輸出模塊。
模擬信號(hào)輸入/輸出:輸入:儀表可接受多達(dá)6只稱重傳感器的模擬信號(hào)輸入
輸出(可選):和瞬時(shí)流量成正比的0-20毫安或4-20毫安電流輸出
通訊(可選):如果配有可選的通訊板可以實(shí)現(xiàn)RS232或RS485串行通訊
PID調(diào)節(jié):對(duì)于 MT2105/3105儀表內(nèi)置PID調(diào)節(jié)功能
32-bit CPU and 24-bit A/D, providing multi-level password protection and linear compensation for accuracy of 25% to 99% rated loads; ◆ accuracy: better than 0.01%, optional analog output and analog input and output board, optional standard RS232, RS485 communication board; ◆ There are MT2001,2101,2301 and 2105 types for users to choose from; ◆ MT2105 instrument has PID control function, it is suitable for batching or coal blending system in metallurgy, electric power and chemical industry. ◆ MT2101, if connected to an angle compensator, can automatically modify the interval value for angle compensation when the conveyor's inclination changes. :: Main features of MT2000 series instrumentation in Ramsay, USA Digital processing technology: MT2000 series of instruments adopt digital signal processing technology, strong resistance to electromagnetic interference, can provide accurate drift-free performance Automatic Zero Adjustment: Under menu guidance, through simple operation; the instrument can automatically calculate and establish new zeros without the need for potentiometer adjustment and mechanical zero adjustment Automatic interval adjustment: Under the guidance of menu, the automatic setting of system interval can be realized by precision resistor calibration, code-hanging calibration, chain code calibration or physical calibration Calibration time automatic prompt: the system automatically prompts the operator to calibrate the instrument according to the set time interval. Programmable: MT2000 series instrument design can be used in a variety of work situations, in order to ensure that the instrument can achieve the best performance in all kinds of working conditions, the user can program according to the menu prompt to meet the application requirements of the instrument under various working conditions. Filtering time: the user can choose the appropriate filtering time according to the different applications. :: Technical parameters of MT2000 series instrumentation by Ramsay, USA Shell: Field Installation Type: Size 381x330x178mm Panel mounting type: DIN 43700 96 x 288 mm Temperature: Working temperature:-10°C +50°C Storage temperature:-40°C +70°C Power:110/120/220/240VAC 50/60Hz Display mode:4 lines 20 letters (4x20 letters or numbers) vacuum fluorescent tube display. Keyboard: Standard numeric keys, RUN, MENU, SCROLL (up and down), TOTAL, PRINT, START, STOP, CLEAR and three soft keys that perform non-specific functions, all of which are of a thin film type with touch feedback. Status indication: Zero point calibration, interval calibration, alarm, batch weighing, ready indication. Unit of measurement: ton, kg Memory: RAM memory, with its own file battery, not volatile type. Accuracy/Nonlinearity: In the weight range of 0%-105%, the error is less than 0.02% Electronic circuit: CPU 32-bit microprocessor,20-bit A/D converter, watchdog circuit, prevent crash. Expansion slot: MT2001 has two sets of expansion slots, MT2101, MT2301, MT2105 has five sets of expansion slots for mounting optional inserts Weight: Field Installation Type:12.8 kg Panel mounting:7.8 kg digital signal input/output: the meter is equipped with multiple programmable digital quantity input and output interfaces that can accept switch quantity signal input from various devices and can provide signal indication output to external devices. Speed input: single speed pulse input from a speed sensor Digital signal output: the instrument is equipped with four digital signal outputs for general use, and the digital signal output can be provided through the solid-state output module (optional). The contents of the output can be set by the instrument. The main contents include the alarm output of instrument readiness, fault output, high and low flow, etc. Each digital signal output needs to use a solid-state output module. Analog Signal Input / Output: Input: Instrument can accept analog signal input for up to 6 weighing sensors Output (optional):0-20 Ma or 4-20 Ma current output proportional to instantaneous flow Communication (optional): RS232 or RS485 serial communication can be achieved if equipped with an optional communication board PID regulation: For MT2105/3105 instrument, PID regulation function is built in