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      歡迎光臨~庫納格流體控制系統(tǒng)(上海)有限公司
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      Dwyer 美國德威爾

      • Mark系列閥位指示/開關(guān)/變送器 dwyer 德威爾
      Mark系列閥位指示/開關(guān)/變送器 dwyer 德威爾

      Mark系列閥位指示/開關(guān)/變送器 dwyer 德威爾

      • dwyer產(chǎn)品銷售 產(chǎn)品選型 產(chǎn)品報(bào)價(jià) 技術(shù)支持 售后服務(wù)
      • 美國德威爾 壓差表 流量計(jì) 差壓計(jì) 差壓開關(guān) 差壓變送器
      • 產(chǎn)品廣泛應(yīng)用于暖通 空調(diào) 食品 制藥 生物工程 智能樓宇 電廠 化工 水處理 環(huán)境監(jiān)測 工業(yè)制造等領(lǐng)域
      • 產(chǎn)品描述:美國Dwyer德威爾儀器儀表制造有限公司(Dwyer Instruments,Inc.)是一家對差壓、溫度、液位和流量的測量,變送和控制等方面擁有眾多精密儀器儀表產(chǎn)品并且在價(jià)格上有強(qiáng)競爭力的儀器儀表制造公司。
      • 在線訂購

      Mark系列閥位指示/開關(guān)/變送器
      產(chǎn)品說明:
      Mark系列是閥位指示器系列產(chǎn)品,可選擇多種輸出方式。有四種不同的型號(hào)使得Mark系列幾乎可以滿足任何應(yīng)用的需要。Mark系列的標(biāo)準(zhǔn)型號(hào)帶有閥位指示器,防護(hù)級(jí)別有全天侯,防爆和可浸入水中的防護(hù)。多種輸出方式使其能廣泛應(yīng)用于各種領(lǐng)域。在16個(gè)參數(shù)選擇中,其中開關(guān)就有六種型式供選擇:電感感應(yīng)開關(guān),高溫開關(guān),金觸點(diǎn)開關(guān),全密封開關(guān)和大電流開關(guān)。除了開關(guān)輸出之外,還有電位計(jì)輸出,變送器輸出和HART®通訊。它可用于角度閥和直行程閥,可顯示閥門開關(guān)狀態(tài)和閥門位置。 Mark 1采用了專利的磁力驅(qū)動(dòng)技術(shù),這樣把開關(guān)和外界完全隔離,避免泄漏。 Mark 3和Mark 1同樣是磁力驅(qū)動(dòng),但Mark 3可用于多圈轉(zhuǎn)動(dòng)的應(yīng)用場合,例如閘閥。Mark 4采用直通軸驅(qū)動(dòng),價(jià)格低。
      產(chǎn)品規(guī)格:
      GENERAL
      Product Rating: Weatherproof and flameproof. NEMA 1, 2, 3, 3R, 3S, 4, 4X, 6, 7, 9, 12, 13. UL rated: Class I, Div. 1 & 2, Groups B, C, D (some units available for Group A, consult factory); Class II, Div. 1 & 2, Groups E, F, and G. CSA rated: Class I, Div. 1 & 2, Groups A, B, C, D; Class II, Div. 1 & 2, Groups E, F, and G; Submersible to 50 feet. Certified Ex d IIC T6 IP68 15 meters). ATEX Compliant: -B suffix, directive 2014/34/EU, KEMA 03 ATEX 2391, II 2 G Ex d IIC T6 for (-25/-40/-50°C = Tamb = 80°C optional wording) depending on output and switch type selected. -IS suffix directive 2014/34/EU, KEMA 03 ATEX 1392X, II 1 G Ex ia IIC T4. (Switch type C is not available with ATEX; Switch type B is not available with ATEX intrinsically safe, -IS suffix). IECEx Compliant: IE suffix, IECEx DEK II.0056X Ex d IIC T6 Gb for -25°C/-40°C/-50°C = Tamb = 70°C and T5 for -25°C/-40°C/-50°C = Tamb = 80°C. II suffix, IECEx DEK II.0061X II Ex ia IIC T4 Ga. Compliant per EN 60079-0:2007 EN 60079-11:2006 and EN 60079-26:2006.
      Switch Outputs (Mark 1, 3 and 4)
      Temperature Limits: -58 to 176°F (-50 to 80°C). Switch Type C rated to 350°F (176°C) for 600 hours; Switch Type T rated to 250°F (121°C) continuous. [ATEX flameproof, -B suffix, rated -50 to 80°C (-58 to 176°F) for switch type A, G, H, T, or M; -40 to 80°C (-40 to 176°F) for switch type O, R, S, V, or W; -25 to 80°C (-13 to 176°F) for switch type B, D, I, or AS interface; ATEX intrinsically safe, -IS suffix, rated -25 to 40°C (-13 to 104°F) for switch type D or I; -40 to 40°C (-40 to 104°F) for switch type R, V, or W or -50 to 40°C (-58 to 104°F) for switch type A, G or H.]
      Switch Type: See Model Chart page.
      Electrical Rating: See Model Chart page.
      Set Point Adjustment: Mark 1 and 4: 5 to 360°.
      Potentiometer (Mark 1, 3 and 4)
      Accuracy: ±0.5% of full span. Optional ±0.25% of full span.
      Temperature Limits: -40 to 176°F (-40 to 80°C). [ATEX flameproof, -B suffix, rated -40 to 80°C (-40 to 176°F) for switch type A, G, M, O, R, S, T, V, or W; -25 to 80°C (-13 to 176°F) for switch type B, D, or I; ATEX intrinsically safe, -IS suffix, rated -25 to 40°C (-13 to 104°F) for switch type I; -40 to 40°C (-40 to 104°F) for switch type O, R, S, V, or W].
      Power Rating: 1.5 watt maximum.
      Output Signal: 1000Ω standard. Optional 2000, 5000, 10000, or 20000 Ω.
      Zero and Span Adjustments: Span trim pot with 2000Ω adjustment. No zero adjustment.
      Rotational Travel: Mark 1 and 4: Minimum 0°, Maximum 340°; Mark 3: 0 to 10 revolutions.
      Transmitter (Mark 1, 3 and 4)
      Accuracy: ±0.5% of full span. Optional ±0.25% of full span.
      Temperature Limits: -40 to 176°F (-40 to 80°C). [ATEX flameproof, -B suffix, rated -40 to 80°C (-40 to 176°F) for switch type A, G, M, O, R, S, T, V, or W; -25 to 80°C (-13 to 176°F) for switch type B, D, or I; ATEX intrinsically safe, -IS suffix, rated -25 to 40°C (-13 to 104°F) for switch type I; -40 to 40°C (-40 to 104°F) for switch type O, R, S, V, or W].
      Power Requirements: 5 to 30 VDC.
      Current Consumption: 50 mA.
      Output Signal: 4 to 20 mA.
      Zero and Span Adjustments: Trim pots for adjusting both. Mark 1 and 4: Span is adjustable from 50 to 300°; Mark 3: Span is adjustable from 1.5 to 8.5 revolutions.
      Conduit Connection: 3/4" female NPT standard. Optional one or two 1/2" female NPT. M25 X 1.5 and M20 X 1.5 optional.
      Rotational Travel: Mark 1 and 4: Minimum 50°, Maximum 300°; Mark 3: Minimum: 1.5 revolutions, Maximum: 8.5 revolutions.
      Transmitter w/HART® (Mark 1, 3 and 4)
      Accuracy: ±0.25% of full span.
      Temperature Limits: -40 to 176°F (-40 to 80°C). [ATEX flameproof, -B suffix, rated -40 to 80°C (-40 to 176°F) for switch type A, G, M, O, R, S, T, V, or W; -25 to 80°C (-13 to 176°F) for switch type B, D, or I].
      Power Requirements: 8 to 30 VDC.
      Current Consumption: 21 mA.
      Output Signal: 4 to 20 mA.
      HART® Receive Impedance: Rx = 500 kohm; Cx = 2500 pF.
      Zero and Span Adjustments: Pushbuttons or HART® master for setting both. Mark 1 and 4: Span is adjustable from 0 to 330°; Mark 3: Span is adjustable from 1.5 to 8.5 revolutions.
      Conduit Connection: 3/4" female NPT standard. Optional one or two 1/2" female NPT. M25 and M20 optional.
      Rotational Travel: Mark 1 and 4: Maximum 330°; Mark 3: Minimum: 1.5 revolutions, Maximum: 8.5 revolutions.

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