משדר לחץ הפרשי
תיאור
הדגם DPT-20, עם אותות יציאה 4 ... 20 mA, 4 ... 20 mA HART ®, FOUNDATION™ Fieldbus או PROFIBUS ® PA, בשילוב עם סוג הגנת ההצתה של מארז בטיחות מהותית או חסין-להבה, מתאים באופן אידיאלי ליישום במערכות מתאימות. פיתוח המשדר בהתאם לדרישות של SIL (Safety Integrated Level) IEC 61508 גם הופך אותו למתאים למפעלים עם דרישות בטיחות מיוחדות.
תכונות מיוחדות
- דיוק מדידה גבוה
- טווחי מדידה הניתנים להתאמה חופשית
- פותח בהתאם לדרישות SIL 2
- שבעה דגמי מארז שונים
- הגדרה באמצעות DTM (Device Type Manager) בהתאם לתפיסת FDT (Field Device Tool) (למשל PACTware™)
שאלות ותשובות
מהו טווח המדידה של ה-DPT-20?
המשדר מציע טווחים ניתנים להתאמה חופשית מ--0.01 … +0.01 bar ועד -16 … +16 bar (ביחידות psi: מ--0.15 … +0.15 psi ועד -240 … +240 psi).
מהם אותות המוצא הזמינים?
4 ... 20 mA, 4 ... 20 mA HART®, FOUNDATION™ Fieldbus או PROFIBUS® PA.
מהו הדיוק של המשדר?
הדיוק מוגדר לפי המפרט לכל טווח מדידה; המשדר עומד בתקנים IEC 62828 ו-IEC 61298.
אילו חיבורי תהליך קיימים?
½ NPT, ¼ NPT, G 1/2 ו-M20x1.5.
מאילו חומרים עשויים החלקים במגע עם התווך?
316L או Hastelloy, עם אטמים מ-FKM, EPDM, FPM או NBR. גוף המארז זמין בפלסטיק, אלומיניום או פלדת אל-חלד 316L.
מהם גבולות הטמפרטורה וההגנה מפני חדירה?
טמפרטורת סביבה ותווך של -40 … +85 °C, והגנת כניסה IP65.
האם ה-DPT-20 מתאים לאזורים מסוכנים?
כן — המשדר זמין בביצוע בטיחות מהותית או מארז חסין-להבה, עם אישורי CE ו-NACE, ופותח בהתאם ל-SIL 2 (IEC 61508).
מה מבדיל את ה-DPT-20 מדגמים אחרים?
שילוב של דיוק גבוה, טווחים ניתנים להתאמה חופשית, שבעה סוגי מארזים, וקונפיגורציה באמצעות DTM לפי FDT (למשל PACTware™).
| דגם | DPT-20 |
| סדרה | DPT |
| תת-קטגוריה | Differential pressure transmitter |
| טווח לחץ | -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 |
| מחלקת דיוק | See specifications by range |
| תקן דיוק | IEC 62828, IEC 61298 |
| רמת בטיחות תפקודית (SIL) | SIL 2 (IEC 61508) |
| חיבור תהליך | ½ NPT¼ NPTG 1/2M20x1.5 |
| טמפ׳ תהליך | −40…+85 °C |
| אות יציאה | 4-20 mA · 4-20 mA HART · FOUNDATION™ Fieldbus · PROFIBUS® PA |
| הזנה | 10...30 V DC |
| חיבור חשמלי | M20 x 1.5 |
| חומר מארז | plastic, aluminium, stainless steel (316L) |
| חומר חלקים רטובים | 316L, Hastelloy |
| חומר אטם | FKM, EPDM, FPM, NBR |
| טמפ׳ סביבה | −40…+85 °C |
| דרגת הגנה IP | IP65 |
| משקל | 1.5 kg |
| תקנים | CENACE |
| הגנת התפוצצות | intrinsic safetyflameproof enclosure |
| שפות גיליון נתונים | 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) |
הצגת הכול (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 |
לא מצאתם תשובה בתיעוד? מהנדס יענה במהלך יום עסקים.
שאלו מהנדס →1 מק״טים סטנדרטיים של משפחת DPT
אם ידוע הקוד — בחרו ישירות. אם לא — השתמשו בתצורה במצב «01».
