Data Sheet 3089 - Ashcroft Instruments GmbH

Precision Digital Test GaugeModels 2084/3084, 2086/3086 and 2089/3089Piezoresistive sensor elementAccuracy 0,25 %, 0,1 % or 0,05 % F.S. Total Error Bandincludes all effects of linearity, hysteresis, repeatability andtemperature from -18 up to 63 °CFeatures• Industry leading accuracy• Big display with bar graph• Rugged stainless steel case• 12 Engineering units• Min./max. recall• 7 Languages• Adjustable update and dampen modus• Display backlight• Field calibration capability• Disable modeRanges-1 ... 0 bar up to 0 ... 500 bar-30 ... 0 in. Hg up to 0 ... 7000 psiTechnical specification 2084/3084 2086/3086 2089/3089Measuring principlePiezoresistive sensor element with internal stainless steel diaphragmRangein mbar250 400 600in bar1 1,6 2,5 4 6 10 16 25 40 60160 250 400 500 -1/0 -1/1 -1/2in barabs 1 1,6 3,4Overpressure limit100 % F.S.Pressure typeGauge, vacuum, compound and absoluteCase size3 inch (75 mm)Process connectionG ¼ B according to EN 837-1, ¼ NPT according to ANSI/ASME B1.20.1, ¼ JIS, ¼ SAE,others on requestConnection orientationLower, optional 3 or 9 o’clockMaterialProcess connectionSensorCaseDisplayStainless steel 316 (1.4401)Stainless steel 316 (1.4401)300 series stainless steel, electropolishedLexanPower supply3 AAA alkaline batteries, battery life > 1000 hoursDisplayTypeDigits, resolutionFeaturesLCD with backlight5 digit, 99.999 counts, 16 mm highBar graph 0 ... 100 % F.S., battery level indicator, warning if pressure is out of rangeAccuracy 0,25 % F.S. 0,1 % F.S. 0,05 % F.S.MethodincludingTerminal point, total error band (TEB)Linearity, hysteresis, repeatability and temperature (-18 ... 63 °C)Engineering unitspsi, in. Hg, in. H 2O, ftSW, bar, mbar, kPa, MPa, mmHg, cmH 2O, mmH 2O, kg/cm²(inches of water ranges for 3 reference temperatures: 4 °C, 20 °C and 60 °F)Update rate4 options: 10, 5, 2 or 1 times per secondDamping5 options: none, average 2, 4, 6 or 8 readingsAuto off5 options: never, 2, 5, 15 or 30 minutesLanguage of setup menuEnglish, German, French, Spanish, Portuguese, Italian and DutchPermissibleAmbient temperatureStorage temperature-18 ... 63 °C, temperature compensated-40 ... 82 °CApprovals, explosion proofIntrinsically safe FM and CSACE-mark/EMC Immunity according to EN 50 082-1 (March 1997)Emission according to EN 50 022 (1995)MountingDirect mounting, optional panel mountingProtection according EN 60 529/IEC 529 IP65Weight in kg 0,5Accessories, OptionsProtective carrying pouch,optional 10 point individual calibration chart (standard on type 2089/3089),weatherproof ABS gauge carrying case, protective rubber boot (black or orange)All specification are subject to change without notice.G6.2089/3089/E Rev. A 16/04/2009

General dimensions in mmWhat you should know about digital gauge accuracy…Terminal Point versus Best Fit Straight Line Accuracy.ASHCROFT/HEISEPrecision digital test gauges with terminal point accuracy• All points between zero and fullscalewill be within stated accuracy.• Allows zeroing of gauge at start-upto eliminate any sensor offset.Competitive digital gauges with best fit straight line (BFSL) accuracyAccuracy full scale total error band (TEB) includes:• Linearity• Hysteresis• Repeatability• temperature influence from -18 up to 63 °Caccording terminal point methodAmbient Temperature ChangesOther manufacturers of digital gauges may specify operating temperaturerange without specifying the additional error associated withchanges in ambient temperature. Errors can range as high as0.7%/10 K. A 15 K change from an ambient of 20 °C m ay add anadditional 1% to the stated accuracy of the gauge!The Ashcroft digital gauge with total error band ensuresaccuracy from -18…63 °C.PROBLEM• Re-zeroing gauge may invalidate publishedaccuracy specification• Zero offset at start-up may be the result of either:- BFSL Calibration- Zero Drift• Linearity error minimized by “best”fitting a straight line to a non-linearcurve.• BFSL gauges have a zero offset atcalibration that must be maintainedto ensure accuracy throughoutrange.Order informationSize Type Systemmaterial(30) 3” With Ashcroft Logo:(75 mm)Order example(2084) Accuracy0,25 %(2086) Accuracy0,1 %(2089) Accuracy0,05 %With HEISE Logo:(3084) Accuracy0,25 %(3086) Accuracy0,1 %(3089) Accuracy0,05 %(S) 316(1.4401)Process connection(02) ¼ NPT male(13) G ¼ B male(KJ) ¼“ straight JIS, BSPothers on requestConnectionorientation(L) Lower(D) 3 o’clock(E) 9 o’clockRange-1/ 0-1/ 1-1/ 20/ 0,250/ 0,40/ 0,60/ 10/ 1,60/ 2,50/ 40/ 60/ 100/ 160/ 250/ 400/ 600/ 1000/ 1600/ 2500/ 4000/ 500Execution(D) IP65Engineeringunit(BAR)0/ 1 (BARABS)0/ 1,60/ 3,4 psi and otherson requestOptions(CD10) 10 pointcalibrationcertificate(standard withtype 2089/3089)(6B)(TU)(S7)(B1)(B2)(FF)OxygencleanedThrottle plugWeatherproofABScarryingcaseProtectiveEPDM boot(black)ProtectiveEPDM boot(orange)Front flangeSize Type SystemmaterialExecutionProcessconnectionConnectionorientationRangeEngineeringunit30 3089 S D 02 L 0/16 BAR S7OptionsAshcroft Instruments GmbH Website: www.ashcroft.eu e-Mail: sales@ashcroft.comGermanyMax-Planck-Str. 1, D-52499 BaesweilerP.O. Box 11 20, D-52490 BaesweilerTel.: +49 (0) 2401 808-0, Fax: +49 (0) 2401 808-125France„206“ ZA du Mandinet, 1/3 Rue des CampanulesF-77185 LognesTel.: +33 (0) 1 60 37 25 30, Fax: +33 (0) 1 60 37 25 39United KingdomUnit 5 William James HouseCowley Road, Cambridge CB4 0WXTel.: +44 (0) 12 23 39 55 00, Fax: +44 (0) 12 23 39 55 01