ABB AWT420 Commissioning Instructions

Also see for AWT420: Operating instruction Manual Manual

Contents

ABB AWT420 Commissioning Instructions Manual pdf 34 page image

34AW T4 2 0 | U N I V E R S A L 4 - W I R E , D U A L- I N P U T T R A N S M I T T E R | C I/A W T4 2 0 - E N R E V. B…11 Specification4-electrode conductivityConductivity inputMeasurement range and resolutionSensorgroupConductivityrangeDisplayresolutionAccuracyrepeatabilityA 0 to 2000 mS/cm 0.1 μS/cm ±0.5 % of measurementrange per decadeB 0 to 2000 μS/cm 0.01 μS/cmDynamic response<3 s for 90 % step change when damping is OffDampingConfigurable: Off, Low, Medium and HighTemperature inputTemperature element types• Automatic temperature sensor recognition for Pt100,Pt1000 and 3k Balco RTDs in either 2-lead or 3-leadconfigurations• Temperature element can be used for automatictemperature compensation of the conductivity solutionMeasurement range and resolutionSensorgroupTemperaturerangeDisplayresolutionAccuracyrepeatabilityPt100Pt10003K Balco–20 to 200 °C(–4 to 392 °F)0.1 °C(0.1 °F)0.1 °C(0.18 °F)None User-programmable–20 to 300 °C(–4 to 572 °F)N/ATemperature compensation modes• 0 to 15 % NaOH• 0 to 18 % HCl• 0 to 20 % H2SO4• 0 to 40 % H3PO4• 0 to 20 % NaCl• 0 to 50 % KOH• User-defined tableReference temperature25 °C (77 °F)Configured output rangeSensor group Min span Max spanA 100 μS/cm 2000 mS/cmB 10 μS/cm 2000 μS/cmpH/ORP (Redox)pH/ORP (Redox) inputSensor typespH: Glass, Antimony (Sb)ORP (Redox): Platinum (Pt), Gold (Au)Input impedance>1×1013 ΩMeasurement range and resolutionType Range Display resolution Accuracy repeatabilitypH 0 to 14 pH 0.01 pH ±0.01 pHORP ±2000 mV 1 mV ±1800 MV: ±1 mV±2000 MV: ±3 MVDynamic response<3 s for 90 % step change when damping is OffDampingConfigurable: Off, Low, Medium and HighTemperature inputTemperature element types• Automatic temperature sensor recognition for Pt100,Pt1000 and 3k Balco RTDs in either 2-lead or 3-leadconfigurations• Temperature element can be used for automatictemperature compensation of the conductivity solutionMeasurement range and resolutionSensorgroupTemperaturerangeDisplayresolutionAccuracyrepeatabilityPt100Pt10003K Balco–20 to 200 °C(–4 to 392 °F)0.1 °C(0.1 °F)0.1 °C(0.18 °F)None User-programmable–20 to 300 °C(–4 to 572 °F)N/ATemperature compensation modes• pH: Manual, Automatic Nernstian,Nernstian with solution coefficient• ORP: Manual, solution compensation coefficientReference temperature25 °C (77 °F)Configured output rangeType Min span Max spanpH 1 pH 14 pHORP 100 mV 4000 mV