مرسل ضغط تفاضلي
الوصف
إن الطراز DPT-20، مع إشارات الخرج 4 ... 20 mA أو 4 ... 20 mA HART ® أو FOUNDATION™ Fieldbus أو PROFIBUS ® PA، والمُدمج مع نوع حماية الاشتعال لسلامة الجوهرية أو الحماية من الانفجار بسبب اللهب (flameproof)، مناسب بشكل مثالي للتطبيق في الأنظمة المناسبة. كما أن تطوير المُرسِل وفقًا لمتطلبات SIL (Safety Integrated Level) IEC 61508 يجعل منه مناسبًا أيضًا للمواقع/المصانع التي تتطلب متطلبات سلامة خاصة.
المزايا
- دقة قياس عالية
- مدى قياس قابل للمعايرة بحرية
- مطوَّر وفقاً لمتطلبات SIL 2
- سبعة أشكال مختلفة للهيكل
- التهيئة عبر DTM (Device Type Manager) وفقًا لمفهوم FDT (Field Device Tool) (مثل PACTware™)
الأسئلة والأجوبة
ما هو مدى القياس لمرسل DPT-20؟
يتوفر المدى كمدى سالب/موجب متناظر يبدأ من -0.01 … +0.01 bar وصولًا إلى -16 … +16 bar، وبالمقابل من -0.15 … +0.15 psi إلى -240 … +240 psi. كما أن المدى قابل للمعايرة بحرية ضمن هذه الحدود.
هل يمكن استخدام هذا المرسل في مناطق خطرة؟
نعم، فهو متوفر بحماية اشتعال بالسلامة الجوهرية وبحماية من الانفجار (flameproof enclosure)، مع شهادات CE وNACE.
ما هي إشارات الخرج المتاحة؟
تشمل 4 ... 20 mA، و4 ... 20 mA HART، وFOUNDATION™ Fieldbus، وPROFIBUS® PA.
ما نوع توصيل العملية المتاح؟
التوصيلات المتاحة هي ½ NPT و¼ NPT وG 1/2 وM20x1.5.
ما المواد التي تلامس المائع؟
الأجزاء الملامسة للمائع متوفرة من 316L أو Hastelloy، ومواد الإحكام تشمل FKM وEPDM وFPM وNBR.
ما حدود درجة الحرارة المسموح بها؟
درجة حرارة البيئة المحيطة ودرجة حرارة المائع كلتيهما من -40 °C إلى +85 °C.
هل يناسب المصانع ذات متطلبات السلامة الوظيفية؟
نعم، فقد طُوِّر المرسل وفقًا لمتطلبات SIL 2 وفق المعيار IEC 61508، مما يجعله مناسبًا للمواقع التي تتطلب متطلبات سلامة خاصة.
كيف تتم تهيئة الجهاز؟
تتم التهيئة عبر DTM (Device Type Manager) وفقًا لمفهوم FDT، باستخدام برامج مثل PACTware™.
| الطراز | DPT-20 |
| السلسلة | DPT |
| النوع الفرعي | Differential pressure transmitter |
| نطاق الضغط | -0.01…0.01 bar · -0.03…0.03 bar · -0.1…0.1 bar · -0.5…0.5 bar · -3…3 bar · -16…16 bar · -0.15…0.15 psi · -1.5…1.5 psi · -7.5…7.5 psi · -45…45 psi · -240…240 psi |
| فئة الدقة | See specifications by range |
| معيار الدقة | IEC 62828, IEC 61298 |
| مستوى السلامة الوظيفية (SIL) | SIL 2 (IEC 61508) |
| وصلة العملية | ½ NPT¼ NPTG 1/2M20x1.5 |
| درجة حرارة العملية | −40…+85 °C |
| إشارة الخرج | 4-20 mA · 4-20 mA HART · FOUNDATION™ Fieldbus · PROFIBUS® PA |
| التغذية | 10...30 V DC |
| وصلة كهربائية | M20 x 1.5 |
| مادة العلبة | plastic, aluminium, stainless steel (316L) |
| مادة الأجزاء الملامسة | 316L, Hastelloy |
| مادة الإحكام | FKM, EPDM, FPM, NBR |
| حرارة المحيط | −40…+85 °C |
| تصنيف IP | IP65 |
| الوزن | 1.5 kg |
| الشهادات | CENACE |
| حماية الانفجار | intrinsic safetyflameproof enclosure |
| لغات ورقة البيانات | EN, DE, ES, FR |
| Measuring deviation determined using the limit point method IEC 62828/IEC 61298 1) | ||
|---|---|---|
| Differential pressure | Measuring ranges 10 and 30 mbar [0.15 and 0.45 psi] | ■ TD ≤ 5:1 ±0.1 %of span ■ TD > 5:1 ±0.02%xTD |
| Measuring range 100 and 500 mbar [1.5 and 7.5 psi] | ■ ToTD 10:1 ±0.065 %of span ■ TD > 10:1 ±0.035 %+0.01%xTD | |
| Measuring range 3 bar [45 psi] | ■ ToTD 10:1 ±0.065 %of span ■ >TD 10:1 ±0.015 %+0.005%xTD | |
| Measuring range 16 bar [240 psi] | ■ ToTD 10:1 ±0.065 %of span ■ >TD 10:1 ±0.035 %+0.01%xTD | |
| Static pressure | < ±0.1 %(scaling with static pressure is not possible) | |
| Adjustability, differential pressure | ||
| Pressure value of zero point | -120 ...+120 %of the nominal measuring range (with -100 ...+100 mbar [-1.5 ... +1.5 psi] measuring range, 100 mbar [1.5 psi] is the nominal measuring range) | |
| Pressure value of span | Zero point + (-240 …+240 %) | |
| Adjustability, level | ||
| Percentage value | -10…+100% | |
| Pressure value | -120…+120% | |
| Adjustability, flow | ||
| Pressure value of zero point | -120…+120% | |
| Pressure value of span | -120…+120% | |
| Influence of mounting position | < 0.35 mbar [0.003 psi] per 10° inclination from the vertical | |
| Influence of the medium and ambient temperature | ||
| -10 ...+60 °C [14 ... 140 °F] | Measuring range 10 mbar [0.15 psi] | < ±0.15%+0.2%xTD |
| Measuring range 30 mbar [ 0.45 psi] | < ±0.15%+0.1%xTD | |
| Measuring range 100 mbar [1.5 psi] | < ±0.15 %+0.15%xTD | |
| Measuring range 500 mbar [7.5 psi] | < ±0.15 %+0.05%xTD | |
| Measuring range 3 bar [45 psi] | < ±0.15 %+0.05%xTD | |
| Measuring range 16 bar [240 psi] | < ±0.15 %+0.15%xTD | |
| -40 …-10 °C [-40 ...+14 °F] / 60 …85°C[140 ... 185 °F] | Measuring range 10 mbar [0.15 psi] | < ±0.4%+0.3%xTD |
| Measuring range 30 mbar [ 0.45 psi] | < ±0.2 %+0.15%xTD | |
| Measuring range 100 mbar [1.5 psi] | < ±0.15%+0.2%xTD | |
| Measuring range 500 mbar [7.5 psi] | < ±0.2 %+0.06%xTD | |
| Measuring range 3 bar [45 psi] | < ±0.2 %+0.06%xTD | |
| Measuring range 16 bar [240 psi] | < ±0.15%+0.2%xTD | |
| Long-term stability | ||
| Differential pressure | ■ < 0.065 %xTD(1 year) ■ < 0.1 %xTD(5 years) ■ < 0.15 %xTD(10 years) | |
| Static pressure | ■ < ±0.065 %(1 year) ■ < ±0.1 %(5 years) ■ < ±0.15 %(10 years) | |
| Thermal change of zero point and output span depending on the static pressure | ||
| Measuring ranges 10 and 30 mbar [0.15 and 0.45 psi] | To nominal pressure | 40 bar [600 psi] |
| Influence on the zero point | < ±0.1%xTD | |
| Influence on the span | < ±0.1% | |
| Measuring ranges 100 and 500 mbar [1.5 and 7.5 psi] | To nominal pressure | 160 bar [2,400 psi] |
| Influence on the zero point | < ±0.1%xTD | |
| Influence on the span | < ±0.1% |
| Measuring ranges 3 and 16 bar [45 and 240 psi] | To nominal pressure | 400 bar [5,800 psi] |
|---|---|---|
| Influence on the zero point | < ±0.25%xTD | |
| Influence on the span | < ±0.25% | |
| Thermal change | Change of the current output with 4 ...20 mAsignals: 0.05 %per 10 K based on 20 °C [68 (maximum 0.15 %at set measuring span) in the ambient temperature range -40 …+80 °C [-40 …+176 °F] | |
| Reference conditions per IEC 61298-1 | ||
| Temperature | +18 ...+30 °C [64 ... 86 °F] | |
| Air pressure | 860 ... 1,060 mbar [86 ... 106 kPa, 12.5 ... 15.4 psig] | |
| Air humidity | 45 ... 75 %r.h. | |
| Characteristic curve determination | Terminal method per IEC 61298-2 | |
| Curve characteristics | Linear | |
| Reference mounting position | Vertical, i.e. vertical process assembly (connections are on the side) |
| Measuring range 1) | -10 mbar ... +10 mbar [-0.15 ... +0.15 psi] | -30 mbar ... +30 mbar [-0.45 ... +0.45 psi] | -100 mbar ... +100 mbar [-1.5 ...+1.5 psi] | -500 mbar ... +500 mbar [-7.5 ...+7.5 psi] | -3 bar ...+3 bar [-45 ...+45 psi] | -16 bar ... +16 bar [-240 ... +240 psi] |
|---|---|---|---|---|---|---|
| Maximum operating pressure | 40 bar [600 psi] | 160 bar [2,400 psi] (option: 400 bar [5,800 psi]) | ||||
| Lowest static pressure 2) | 1 mbar abs.[0.015 psi], with application for oxygen the static pressure should not be lower than 10 mbar abs. [0.15 psi] | |||||
| Turndown ratio | Maximum permissible turndown is unlimited (max. 20:1 is recommended) | |||||
| Overload, on one side | 40 bar [600 psi] | 160 bar [2,400 psi] (option: 400 bar [5,800 psi]) | ||||
| Overload, on both sides | 60 bar [900 psi] | 240 bar [6,300 psi] (option: 630 bar [9,100 psi]) |
| Connection | Mounting | Material | Equipment |
|---|---|---|---|
| ¼-18 NPT IEC 61518 | 7/16-20 UNF | AISI 316L (1.4404) | 2 vent valves 1) |
| ¼-18 NPT IEC 61518 | 7/16-20 UNF | Hastelloy C276 (2.4819) | 2 vent valves 1) |
عرض الكل (14)
| Connection | Mounting | Material | Equipment |
|---|---|---|---|
| ¼-18 NPT IEC 61518 | 7/16-20 UNF | AISI 316L (1.4404) | 2 vent valves, 4 plug screws 1) |
| ¼-18 NPT IEC 61518 | 7/16-20 UNF | Hastelloy C276 (2.4819) | 2 vent valves, 4 plug screws 1) |
| Signal type | 4 …20mA, 2-wire, (option: 4 ... 20 mA, 2-wire with superimposed communication signal HART ® , FOUNDATION™ Fieldbus, PROFIBUS ® PA) | ||
|---|---|---|---|
| Permissible max. load | R A = (U B - U Bmin )/0.023 A | ||
| Dead time | ■ 160 ms (10 and 30 mbar [0.15 and 0.45 psi]) ■ 130 ms (remaining measuring ranges) | ||
| Time constant (90 %) | ■ 115 ms (10 and 30 mbar [0.15 and 0.45 psi]) ■ 95 ms (100 mbar [1.5 psi]) ■ 75 ms (500 mbar [7.5 psi]) ■ 60 ms (3 bar [45 psi] and 16 bar [240 psi]) | ||
| Damping (63 %of the input variable) | 0 …999 s, adjustable | ||
| Deviation through interference | Strong, high-frequency fields can influence the current output with 4 …20mA, within the scope of EN 61326-1, by up to ±80 µA. | ||
| Voltage supply | |||
| Supply voltage | 4 ...20mA | Inactive backlighting | DC 11 ...35V |
| Active backlighting | DC 16 ...35V | ||
| 4 ... 20 mAwith a superimposed HART ® communication signal | Inactive backlighting | DC 11 ...35V | |
| Active backlighting | DC 16 ...35V | ||
| PROFIBUS ® PA (max. 32 BUS instruments) | Inactive backlighting | DC 9 ...32V | |
| Active backlighting | DC 13.5…32V | ||
| FOUNDATION™ Fieldbus (max. 32 BUS instruments) | Inactive backlighting | DC 9 ...32V | |
| Active backlighting | DC 13.5…32V | ||
| Electrical safety | Overvoltage category III, protection class II |
| Spring-loaded terminals | Wire cross-section | ■ Wire or strand: 0.2 ... 2.5 mm² (AWG 24 ... 14) ■ Strand with end splice: 0.2 ... 1.5 mm² (AWG 24 ... 16) |
|---|---|---|
| Cable glands M20 x 1.5 | ||
| Sealed with blind plug | ||
| Plastic, PA | Sealing | NBR |
| Cable diameter | ■ 5 ... 9 mm[0.2 ... 0.35 in] ■ 6 ... 12 mm[0.24 ... 0.47 in] ■ 10 ... 14 mm[0.39 ... 0.55 in] | |
| Brass, nickel-plated | Sealing | NBR |
| Cable diameter | ■ 5 ... 9 mm[0.2 ... 0.35 in] ■ 6 ... 12 mm[0.24 ... 0.47 in] | |
| Stainless steel | Sealing | NBR |
| Cable diameter | 7 ... 12 mm[0.28 x 0.47 in] | |
| Cable glands ½ NPT | ||
| Sealed with blind plug | ||
| Plastic, PA | Cable diameter | ■ 5 ... 9 mm[0.2 x 0.35 in] ■ 6 ... 12 mm[0.24 ... 0.47 in] ■ 10 ... 14 mm[0.39 ... 0.55 in] |
| Brass, nickel-plated | Cable diameter | ■ 5 ... 9 mm[0.2 ... 0.35 in] ■ 6 ... 12 mm[0.24 ... 0.47 in] |
| Electrical safety | Reverse polarity protection |
| Material (wetted) | |
|---|---|
| Process connection | 316L (1.4404) (option: Hastelloy C276 (2.4819)) |
| Diaphragm | 316L (1.4435) (option: Hastelloy C276 (2.4819) |
| Sealing | FKM (option:EPDM, copper) |
| Case material | |
| Single chamber case, plastic | PBT, polyester |
| Single chamber case, aluminium | Die-casting AlSi10Mg, powder-coated on PE basis |
| Single chamber case, cast stainless steel | Stainless steel 316L |
| Single chamber case, electropolished stainless steel, deep-drawn | Stainless steel 316L |
| Double chamber case, plastic | PBT, polyester |
| Double chamber case, aluminium | Die-casting AlSi10Mg, powder-coated on PE basis |
| Double chamber case, cast stainless steel | Stainless steel 316L |
| Pressure transmission medium 1) | Silicone oil (halocarbon oil for oxygen applications) |
| Backlighting | Yes | ||
|---|---|---|---|
| Background | Grey, black digits | ||
| Upgradable | Yes (for order numbers, see 'Accessories') | ||
| Menu languages | German English French Spanish | Polish Italian Dutch Japanese | Turkish |
| Display size | 5-digit measured value display, adjustable (option: bar graph display) Max. 5 digits, size 7 x 13 mm[0.28 x 0.51 in] | ||
| Ingress protection (IP code) per IEC 60529 | ■ IP20 (loose) ■ IP40 (built-in without cover) | ||
| Material | Case from ABS, window from polyester film |
| Permissible temperature ranges | ||
|---|---|---|
| Ambient | ■ -40 …+80 °C [-40 ...+176 °F] (without display) ■ -20 …+70 °C [-4 ...+158 °F] (with display) | |
| Storage and transport | -60 …+80 °C [-40 ...+176 °F] | |
| Restrictions to medium temperature due to the sealing material | ||
| FKM | -20 …+85 °C [-4 ...+185 °F] | |
| EPDM, copper | -40 …+85 °C [-40 ...+185 °F] | |
| FKM, oil- and grease-free | -10 …+85 °C [14 ... 185 °F] | |
| For oxygen applications (max. static pressure: 160 bar [2,400 psi]) | Copper | -20 …+60 °C [-4 ...+140 °F] |
| EPDM | -10 …+60 °C [-4 …+140 °F] | |
| FKM | -10 …+60 °C [14 ... 140 °F] | |
| Temperature limits | With differential pressure lines longer than 100 mm:-40 …+120 ° [-40 ... 248 °F] | |
| Vibration resistance per IEC 60068-2-6 1) | 4 g (5 …200 Hz), vibration under resonance | |
| Shock resistance per IEC 60068-2-27 | 50 g for 2.3 ms, mechanical shock | |
| Ingress protection (IP code) per IEC 60529 | IP66/67 (standard case) | |
| Weight | Approx. 4.2 …4.5 kg [9.26 ... 9.92 lbs] depending on the process connection and case variant |
| Logo | Description | Country |
|---|---|---|
| EU declaration of conformity | European Union | |
| EMCdirective, interference emission (group 1, class B) and immunity per EN 61326-1:2013 (industrial application), EN 61326-2-3:2013 1) | ||
| Pressure equipment directive | ||
| RoHS directive |
| Logo | Description |
|---|---|
| SIL IEC 61508 / IEC 6151 | SIL 2 (option) Functional safety ■ 1-channel operation up to SIL 2 |
| - | NAMUR recommendations NE 021 - Electrical compatibility of equipment NE 043 - Signal level for failure information NE 053 - Compatibility of field instruments |
| Certificates | ■ 2.2 test report per EN 10204 (e.g. state-of-the-art manufacturing, material proof, indication accuracy) ■ 3.1 inspection certificate per EN 10204 (e.g. material proof for wetted metal parts, indication accuracy, calibration certificate) |
|---|---|
| Calibration | DAkkS calibration certificate (traceable and accredited in accordance with ISO/IEC 17025) |
| Description | Order number | |
|---|---|---|
| Display module, model DIH52-F 5-digit display, 20-segment bar graph, without separate power supply, with additional HART ® functionality. Automatic adjustment of measuring range and span. Secondary-master functionality: Setting the measuring range and unit of the connected transmitter possible using HART ® standard commands. Optional: Explosion protection per ATEX | On request | |
| HART ® modem for USB interface, specifically designed for use with notebooks (model 010031) | 11025166 | |
| HART ® modem for RS-232 interface (model 010001) | 7957522 | |
| HART ® modem for Bluetooth interface Ex ia IIC (model 010041) | 11364254 | |
| PowerXpress HART ® modem, with optional power supply (model 010031P) | 14133234 | |
| 3-valve manifold, form A, ½NPTfemale (IEC 61518-A) Stainless steel, PN 420, form A, NACE-compliant, 3.1 material certificate | 13382498 | |
| 3-valve manifold, form A, 1/4 NPT female (IEC 61518-A) Stainless steel, PN 420, form A, NACE-compliant, 3.1 material certificate | 13382510 | |
| 5-valve manifold, form A, ½NPTfemale (IEC 61518-A) Stainless steel, PN 420, form A, NACE-compliant, 3.1 material certificate | 13382552 | |
| 5-valve manifold, form A, 1/4 NPT female (IEC 61518-A) Stainless steel, PN 420, form A, NACE-compliant, 3.1 material certificate | 13382561 | |
| Oval flange, 1/4 NPT, stainless steel (2 pieces) Stainless steel, PN 420, form A, NACE-compliant, 3.1 material certificate | 13382609 | |
| Oval flange, ½NPT, stainless steel (2 pieces) Stainless steel, PN 420, form A, NACE-compliant, 3.1 material certificate | 13382595 | |
| Set of sealing plugs, 1/4 NPT, 316L (2 pieces) For the vents at the differential pressure sensor Included in delivery with lateral venting, except for process connection from Hastelloy | 14035620 | |
| Set of vent valves, 1/4 NPT, 316L (2 pieces) For the vents at the differential pressure sensor Included in delivery, except for process connection from Hastelloy | 14368975 | |
| Instrument mounting bracket for wall or pipe mounting with mounting bracket and screws, stainless steel | 11553945 | |
| Overvoltage protection For transmitters, 4 ... 20 mA, M20 x 1.5, series connection | 14002489 | |
| For transmitters, PROFIBUS ® PA, M20 x 1.5, series connection | 14013659 | |
| Model DI-PT-R display and operating module, case cover aluminium with window | 12298884 | |
| Model DI-PT-R display and operating module, case cover electropolished cast stainless steel with window | 13315269 | |
| Model DI-PT-R display and operating module, case cover plastic with window | 13315277 | |
| Model DI-PT-R display and operating module, case cover cast stainless steel with window for single chamber case | 12298906 | |
| Model DI-PT-R display and operating module, case cover cast stainless steel with window for double chamber case | 14045598 | |
| Model DI-PT-E external display and operating module, aluminium case | 12354954 | |
| Model DI-PT-E external display and operating module, cast stainless steel case | 12355101 | |
| Model DI-PT-E external display and operating module, plastic case | 14134247 |
لم تجد الإجابة في الوثائق؟ سيرد المهندس خلال يوم عمل.
اسأل المهندس →1 مادة قياسية من عائلة DPT
إذا كنت تعرف الرمز — اختر مباشرة. إذا لا — استخدم المُهيِّئ في الوضع «01».
