7250 型數(shù)字壓力控制器/校準器可覆蓋從0-5 psi（40kPa）到 0-3000 psi（21Mpa）的各種壓力量程，是 7250xi 與 7250i 的經(jīng)濟型產(chǎn)品。7250的準確度高達滿量程的0.003％，可在 15 秒內(nèi)無過沖地快速到達設定點。如果需要更高的性能，請參考 7250i 與 7250xi 型數(shù)字壓力控制器。
7250 數(shù)字壓力控制器具有彩色顯示屏，增強型導航菜單，控制穩(wěn)定性高達10ppm
- 量程從 0-5 psi（40kPa）到 0-3000 psi（21Mpa）
- 精確度：滿量程的 0.003％
- 快速控制：小于 15 秒，15 立方英寸內(nèi)絕不超限容積
- 穩(wěn)定性 ：每年為讀數(shù)的 0.0075%
- 控制穩(wěn)定性： 2500 psi以內(nèi)為0.001％ FS，（到 3000 psi 為 0.002％）
- 可提供 Labview® 驅(qū)動
高精度石英波登管傳感器
7250高速數(shù)字式壓力控制器是羅斯 卡第五代自動壓力控制器，具有無與匹敵的性能和大屏幕彩色中文界面顯示，并增強了控制穩(wěn)定性，綜合了精確、穩(wěn)定、速度和多功能等優(yōu)點于一身。量程范圍在17.2MPa以內(nèi)的7250xi、7250i和7250安裝的是羅斯卡*的石英傳感器，每個石英傳感器的性能均由羅斯卡壓力校驗設備進行嚴格的性能測試，以確保向用戶提供高精度、高穩(wěn)定性、高可靠性的產(chǎn)品。
標準精度
對于不需要7250xi和7250i那樣高精度儀表的應用場合，7250可提供經(jīng)濟實惠的自動壓力測試和校驗。壓力范圍在17.2MPa內(nèi)，精度為滿量程的±0.003%。對于21MPa的壓力范圍，精度為滿量程 的±0.01%，并可選擇三量程選件： 7MPa，14MPa和21MPa，精度均為各量程的±0.01%FS。
靈活多變的控制方式
高速壓力控制
所有7250系列儀表，在17.2MPa范圍內(nèi)（7250可至21MPa），對于245cc的負載容積，均可在15秒內(nèi)或更短時間內(nèi) 穩(wěn)定輸出設定壓力值，無過沖壓力，可進行高速壓力測試和校驗。
雙控制模式
7250系列都有兩種控制模式：主動模式和被動模式供用戶選擇。在主動模式中，7250可保持設定點的壓力，自動補償因溫度變化或壓力泄漏所引起的壓力改變。在被動模式中，用戶可以定義控制誤差帶寬。一旦儀表輸出壓力在誤差帶寬范圍內(nèi)，儀表停止控制。在無泄漏和溫度穩(wěn)定的場合中，被動模式可以zui大限度發(fā)揮儀器高精度性能，排除控制波動 等不確定因素的干擾。
壓力自動測試和校準
壓力自動測試和校驗
7250xi、7250i、7250的使用非常方便，可以采用多種方法的自動校驗。
上/下步進
用于步長固定的校驗，鍵入用戶定義的步長，7250系列采用的是Jog Dial（撥盤）方式自動加減步長，而不是冗長的鍵盤操作過程。
預壓測試
對于簡單的例行操作，如指針壓力表，只要鍵入一個起始值、終止值和重復的次數(shù)值即可。7250系列在運行校驗時將自動地按照設定參數(shù)對被校驗儀表進 行預壓。
用戶編程
用于經(jīng)常使用的或者冗長的校驗步 驟。7250系列可存儲多至20個用戶定義的程序或者多至1000個點的校驗步驟。
計算機接口
7250系列的標準配置里包括RS232和IEEE488接口，且接口指令遵循便于編程的SCPI協(xié)議。配套軟件包括免費下載的 Lab VIEW 驅(qū)動器。作為標準特性，羅斯卡早期型號7215、7010和6000等儀表的配套軟件都能用于7250系列。使用DPI510壓力控制器用戶升級到7250系列 時，可以把7250系列設置為DPI510仿真模式，無需重新開發(fā)校驗軟件。7250系列的系統(tǒng)軟件可通過RS232接口升級（可從下載、升級版本）。
多功能
7250系列多功能壓力控制器幾乎可滿足任何氣體壓力校驗的需要。
壓力范圍寬，多種壓力單位可選壓力范圍寬
7250系列可以滿足各種標準量程或 用戶定義的從40kPa到21MPa全量程壓力范圍的校驗。
壓力單位
菜單中有十二種標準壓力單位可選，包括inH2O@0℃， inH2O@60 。F，inH2O@4℃，inHg@20℃，inHg@60。F， kPa，bar，psi，inH2O@4℃，inH2O@20℃，inH2O@60。F， kg/cm2，mmHg@0℃，cmHg@0℃，cmH2O@4℃和兩個用戶定義的單位。
更多專業(yè)性設計氣柱差修正
7250系列能夠自動地、準確地修正由于高度差引起的誤差。
自動排空和自動清零
只要幾個簡單的按鍵操作，7250系 列就可以把測試口排空到大氣壓力，或者自動地清零（在*絕壓工作方式時，不可使用自動排放功能）。
保護被測儀表可以設置上限和下限壓力，以便保護被測儀表
技術指標 |
| 壓力范圍 | 表壓40kPa~16MPa之間任選；絕壓100~400kPa和21MPa |
| 可選方式 | 使用大氣參考傳感器的絕壓范圍，從100kPa 到17.2MPa 表壓， 真空（負表壓）范圍從100kPa到17.2MPa表壓 |
| 溫度 | 工作溫度：18~36℃；存儲溫度：-20~70℃ |
| 濕度 | 5%~95%RH，無冷凝 |
| 預熱時間 | 2~3小時；可以連續(xù)開機 |
| 壓力介質(zhì) | 氮氣或干凈的干燥空氣 |
| 測試口 | 1/4＂NPT內(nèi)螺紋 |
| 控制參數(shù) | 負載容積：82~980cc，zui低控制（絕壓）：1kPa絕壓 |
| 通訊 | RS-232 和IEEE488 接口，SCPI協(xié)議。羅斯卡7215 系列，7010型系列， 6000 系列和DPI-510 仿真模式。LabVIEW 驅(qū)動可從福祿克免費下載，軟件升級可通過RS-232 接口完成。 |
| 菜單語言 | 中文操作菜單 |
| 顯示 | TFT，VGA， 有源矩陣，6.4 英寸，640×480 分辨率，65.000 色 |
| 外形尺寸 | 所有型號均為18cm高×43cm寬×48cm深 |
| 重量 | 7.7kg |
| 大氣參考(選件) | zui大誤差每年為13.79Pa |
| 精度 | 至17.2MPa：±0.003%FS 21MPa絕壓：±0.01%FS 三量程：7/14/21 MPa的±0.01%FS |
| 穩(wěn)定性 | 至17.2MPa：±0.0075%Rdg每年，21MPa絕壓：±0.01%FS每年 |
| 控制穩(wěn)定性 | 主動模式：±0.001%FS(10ppm) 被動模式：無附加不確定度 |
| 顯示分辨率 | 用戶可選，高達1:1.000.000 |
| 控制器響應速度 | 245cc負載容積時，控制器可在15秒內(nèi)穩(wěn)定無過沖輸出，
7250量程為21MPa時，響應時間30~45秒。 |
| 負表壓精度 | ±0.003%FS |
| 校驗 | 控制器附有可溯源至NIST的校驗報告。與壓力真值的zui大偏差包括精度、穩(wěn)定性、溫度影響和校驗 |
| 總不確定度 | (~17.2MPa)，90天：±0.003%FS/±0.002%Rdg，1年：±0.003%FS/±0.0075%Rdg 壓力范圍21MPa 絕壓，90天：±0.01%(每量程)FS， 1年：±0.014%(每量程)FS |
| 7250 | 高速數(shù)字壓力控制器 | 配件 | 描述 |
|---|
| G3P7250-3S-ACR | Three-Year Gold CarePlan with annual accredited calibration, Instrument covered: RUSKA7250, Pressure Controller/CalibratorTriple Scale | | G3P7250-ACR | Three-Year Gold CarePlan with annual accredited calibration, Instrument covered: RUSKA 7250, Pressure Controller/Calibrator | | G3P7250-VAC-ACR | Three-Year Gold CarePlan with annual accredited calibration, Instrument covered: RUSKA7250, Pressure Controller/CalibratorW/Vacuum | | G3P7250DP-ACR | Three-Year Gold CarePlan with annual accredited calibration, Instrument covered: RUSKA 7250DP, Digital Pressure/Controller | | G5P7250-3S-ACR | Five-Year Gold CarePlan with annual accredited calibration, Instrument covered: RUSKA 7250, Pressure Controller/Calibrator Triple Scale | | G5P7250-ACR | Five-Year Gold CarePlan with annual accredited calibration, Instrument covered: RUSKA 7250, Pressure Controller/Calibrator | | G5P7250-VAC-ACR | Five-Year Gold CarePlan with annual accredited calibration, Instrument covered: RUSKA 7250, Pressure Controller/Calibrator W/Vacuum | | G5P7250DP-ACR | Five-Year Gold CarePlan with annual accredited calibration, Instrument covered: RUSKA 7250DP, Digital Pressure/Controller | | GCP7250-3S-ACR | One-Year Gold CarePlan with annual accredited calibration, Instrument covered: RUSKA 7250, Pressure Controller/Calibrator Triple Scale | | GCP7250-ACR | One-Year Gold CarePlan with annual accredited calibration, Instrument covered: RUSKA 7250, Pressure Controller/Calibrator | | GCP7250-VAC-ACR | One-Year Gold CarePlan with annual accredited calibration, Instrument covered: RUSKA 7250, Pressure Controller/Calibrator W/Vacuum | | GCP7250DP-ACR | One-Year Gold CarePlan with annual accredited calibration, Instrument covered: RUSKA 7250DP, Digital Pressure/Controller | | S3P7250-3S-ACR | Three-Year Silver Care Plan with annual accredited calibration, Instrument covered: RUSKA7250, Pressure Controller/Calibrator Triple Scale | | S3P7250-ACR | Three-Year Silver Care Plan with annual accredited calibration, Instrument covered: RUSKA 7250, Pressure Controller/Calibrator | | S3P7250-VAC-ACR | Three-Year Silver Care Plan with annual accredited calibration, Instrument covered: RUSKA7250, Pressure Controller/Calibrator W/Vacuum | | S5P7250-3S-ACR | Five-Year Silver Care Plan with annual accredited calibration, Instrument covered: RUSKA 7250, Pressure Controller/Calibrator Triple Scale | | S5P7250-ACR | Five-Year Silver Care Plan with annual accredited calibration, Instrument covered: RUSKA 7250, Pressure Controller/Calibrator | | S5P7250-VAC-ACR | Five-Year Silver Care Plan with annual accredited calibration, Instrument covered: RUSKA 7250, Pressure Controller/Calibrator W/Vacuum | | S5P7250DP-ACR | Five-Year Silver Care Plan with annual accredited calibration, Instrument covered: RUSKA 7250DP, Digital Pressure Controller | | SCP7250-3S-ACR | One-Year Silver Care Plan with annual accredited calibration, Instrument covered: Ruska 7250, Pressure Controller/Calibrator Triple Scale | | SCP7250-ACR | One-Year Silver Care Plan with annual accredited calibration, Instrument covered: Ruska 7250, Pressure Controller/Calibrator | | SCP7250-VAC-ACR | One-Year Silver Care Plan with annual accredited calibration, Instrument covered: Ruska 7250, Pressure Controller/Calibrator with Vacuum |
|
| 7250i | 高速數(shù)字壓力控制器 | 配件 | 描述 |
|---|
| G3P7250I-ACR | Three-Year Gold CarePlan with annual accredited calibration, Instrument covered: RUSKA 7250I, Pressure Controller/Calibrator | | G3P7250I-VAC-ACR | Three-Year Gold CarePlan with annual accredited calibration, Instrument covered: RUSKA 7250I, Pressure Controller/Calibrator W/Vacuum | | G5P7250I-ACR | Five-Year Gold CarePlan with annual accredited calibration, Instrument covered: RUSKA 7250I, Pressure Controller/Calibrator | | G5P7250I-VAC-ACR | Five-Year Gold CarePlan with annual accredited calibration, Instrument covered: RUSKA 7250I, Pressure Controller/Calibrator W/Vacuum | | GCP7250I-ACR | One-Year Gold CarePlan with annual accredited calibration, Instrument covered: RUSKA 7250I, Pressure Controller/Calibrator | | GCP7250I-VAC-ACR | One-Year Gold CarePlan with annual accredited calibration, Instrument covered: RUSKA 7250I, Pressure Controller/Calibrator W/Vacuum | | GCP7250LP-ACR | One-Year Gold CarePlan with annual accredited calibration, Instrument covered: RUSKA 7250LP, Pressure Controller/Calibrator | | S3P7250I-ACR | Three-Year Silver Care Plan with annual accredited calibration, Instrument covered: RUSKA 7250I, Pressure Controller/Calibrator | | S3P7250I-VAC-ACR | Three-Year Silver Care Plan with annual accredited calibration, Instrument covered: RUSKA 7250I, Pressure Controller/Calibrator W/Vacuum | | S5P7250I-ACR | Five-Year Silver Care Plan with annual accredited calibration, Instrument covered: RUSKA 7250I, Pressure Controller/Calibrator | | S5P7250I-VAC-ACR | Five-Year Silver Care Plan with annual accredited calibration, Instrument covered: RUSKA 7250I, Pressure Controller/Calibrator W/Vacuum | | SCP7250I-ACR | One-Year Silver Care Plan with annual accredited calibration, Instrument covered: Ruska 7250I, Pressure Controller/Calibrator | | SCP7250I-VAC-ACR | One-Year Silver Care Plan with annual accredited calibration, Instrument covered: Ruska 7250I, Pressure Controller/Calibrator with Vacuum |
|
| 7250xi | 高速數(shù)字壓力控制器 | 配件 | 描述 |
|---|
| G3P7250XI-ACR | Three-Year Gold CarePlan with annual accredited calibration, Instrument covered: RUSKA 7250XI, Pressure Controller/Calibrator | | G5P7250XI-ACR | Five-Year Gold CarePlan with annual accredited calibration, Instrument covered: RUSKA 7250XI, Pressure Controller/Calibrator | | GCP7250XI-ACR | One-Year Gold CarePlan with annual accredited calibration, Instrument covered: RUSKA 7250XI, Pressure Controller/Calibrator | | S3P7250XI-ACR | Three-Year Silver Care Plan with annual accredited calibration, Instrument covered: RUSKA 7250XI, Pressure Controller/Calibrator | | S5P7250XI-ACR | Five-Year Silver Care Plan with annual accredited calibration, Instrument covered: RUSKA 7250XI, Pressure Controller/Calibrator | | SCP7250XI-ACR | One-Year Silver Care Plan with annual accredited calibration, Instrument covered: Ruska 7250XI, Pressure Controller/Calibrator |
|
通用配件:
| 配件 | 描述 |
|---|
| 7250-CASE | 帶有輪子和把手的手提箱 |
| 7250-903 | 機架安裝套件19 in 機架安裝工具EIA 機柜，24 in深 |
| 7250-904 | 機架安裝套件，19 in 機架安裝工具EIA 機柜，30 in深 |
| 7000-110 | 線路及配件套件 |
| 99878-800 | 自動排氣真空泵，85 升/分鐘，50/60 Hz
115/230 VAC 可選
*請注意：Autofloat 系統(tǒng)需要帶自動排泄功能的真空泵。
*請注意：產(chǎn)生絕壓模式壓力需要 2 個真空泵 |
| 7000-102 | 油污隔離器 |
| 7000-METDRV | MET/CAL 仿真驅(qū)動程序 |
| COMPASS for Pressure | 自動執(zhí)行測試、數(shù)據(jù)采集、報告與設備資產(chǎn)管理的軟件 |
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