7250 型數(shù)字壓力控制器/校準(zhǔn)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(jì)型產(chǎn)品。7250的準(zhǔn)確度高達(dá)滿量程的0.003％，可在 15 秒內(nèi)無過沖地快速到達(dá)設(shè)定點(diǎn)。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(qiáng)型導(dǎo)航菜單，控制穩(wěn)定性高達(dá)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(qiáng)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(diǎn)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(gè)石英傳感器的性能均由羅斯卡壓力校驗(yàn)設(shè)備進(jìn)行嚴(yán)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(biāo)準(zhǔn)精度
對于不需要7250xi和7250i那樣高精度儀表的應(yīng)用場合，7250可提供經(jīng)濟(jì)實(shí)惠的自動壓力測試和校驗(yàn)。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(fù)載容積，均可在15秒內(nèi)或更短時(shí)間內(nèi) 穩(wěn)定輸出設(shè)定壓力值，無過沖壓力，可進(jìn)行高速壓力測試和校驗(yàn)。
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(shè)定點(diǎn)的壓力，自動補(bǔ)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(zhǔn)
壓力自動測試和校驗(yàn)
7250xi、7250i、7250的使用非常方便，可以采用多種方法的自動校驗(yàn)。
上/下步進(jìn)
用于步長固定的校驗(yàn)，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(yù)壓測試
對于簡單的例行操作，如指針壓力表，只要鍵入一個(gè)起始值、終止值和重復(fù)的次數(shù)值即可。7250系列在運(yùn)行校驗(yàn)時(shí)將自動地按照設(shè)定參數(shù)對被校驗(yàn)儀表進(jìn) 行預(yù)壓。
用戶編程
用于經(jīng)常使用的或者冗長的校驗(yàn)步 驟。7250系列可存儲多至20個(gè)用戶定義的程序或者多至1000個(gè)點(diǎn)的校驗(yàn)步驟。
計(jì)算機(jī)接口
7250系列的標(biāo)準(zhǔn)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(fèi)下載的 Lab VIEW 驅(qū)動器。作為標(biāo)準(zhǔn)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(shí)，可以把7250系列設(shè)置為DPI510仿真模式，無需重新開發(fā)校驗(yàn)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(yàn)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(biāo)準(zhǔn)量程或 用戶定義的從40kPa到21MPa全量程壓力范圍的校驗(yàn)。
壓力單位
菜單中有十二種標(biāo)準(zhǔn)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(gè)用戶定義的單位。
更多專業(yè)性設(shè)計(jì)氣柱差修正
7250系列能夠自動地、準(zhǔn)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(gè)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(shí)，不可使用自動排放功能）。
保護(hù)被測儀表可以設(shè)置上限和下限壓力，以便保護(hù)被測儀表
技術(shù)指標(biāo) |
| 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(fù)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(yù)熱時(shí)間 | 2~3小時(shí)；可以連續(xù)開機(jī) |
| 壓力介質(zhì) | 氮?dú)饣蚋蓛舻母稍锟諝?/td> |
| 測試口 | 1/4＂NPT內(nèi)螺紋 |
| 控制參數(shù) | 負(fù)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(fèi)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(dá)1:1.000.000 |
| 控制器響應(yīng)速度 | 245cc負(fù)載容積時(shí)，控制器可在15秒內(nèi)穩(wěn)定無過沖輸出，
7250量程為21MPa時(shí)，響應(yīng)時(shí)間30~45秒。 |
| 負(fù)表壓精度 | ±0.003%FS |
| 校驗(yàn) | 控制器附有可溯源至NIST的校驗(yàn)報(bào)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(yàn) |
| 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(jī)架安裝套件19 in 機(jī)架安裝工具EIA 機(jī)柜，24 in深 |
| 7250-904 | 機(jī)架安裝套件，19 in 機(jī)架安裝工具EIA 機(jī)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(gè)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(bào)告與設(shè)備資產(chǎn)管理的軟件 |
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