Võrguseade Fluke Maandustakistuse mõõtja komplekt, 300 V, 300kΩ, CAT II

Fluke 1625-2 on ainulaadne maandusmaanduse tester, mis suudab teostada kõiki nelja tüüpi maandusmaanduse mõõtmisi:3- ja 4-pooluseline fall-of-potential (vaiade abil).4-pooluseline pinnase takistuse testimine (kasutades panuseid).valikuline testimine (kasutades 1 klambrit ja panuseid).Vaakadeta testimine (kasutades ainult 2 klambrit) Reguleeritavad piirid - kiiremaks testimiseks.IP56 klassifikatsioon välitingimustes kasutamiseksVastupidav kandekottGeneral SpecificationsMemoryInternal memory storage up to 1500 records accessible via USB portMeasuring functionInterference voltage and frequency, earthing resistance 3- and 4-pole with/without clip-on current transformer, resistance 2-pole with AC, 2- and 4-pole with DCDisplay4 digit (2999 Digit) - 7 segment liquid crystal display, with improved visibilityOperationCentral rotary switch and function keysTemperature RangeOperating temperature-10°C to 50°C (14°F to 122°F)Storage temperature-30°C to 60°C (-22°F to 140°F)Temperature coefficient±0.1% of reading/°C < 18°C > 28°CType of protectionIP56 for case, IP40 for battery door according to EN60529Max voltageWarning – socket "clamp" to socket E, ES, S or HUrms = 0 VSockets E, ES, S or H to each other in any combination, max. Urms = 250 V (pertains to misuse)SafetyProtection by double and/or reinforced insulation. Max. 50 V to earth per IEC61010-1. Pollution degree 2Quality standardDeveloped, designed and manufactured to comply with DIN ISO 9001External field influenceComplies with DIN 43780 (8/76)Auxiliary power6 x 1.5 V alkaline (IEC LR6 or type AA)Battery life spanWith IEC LR6/type AA: typ. 3,000 measurements (RE+RH ≤ 1 kΩ)With IEC LR6/type AA: typ. 6,000 measurements (RE + RH > 10 kΩ)Dimensions (W x H x D)250 x 133 x 187 mm (9.75 x 5.25 x 7.35 in)Weight≤ 1.1 kg (2.43 lb) without accessories 7.6 kg (16.8 lb) incl. accessories and batteries in carrying caseCase materialPolyesterMeasurement of Interference Voltage DC + AC (UST)Measuring limits of error: methodFull wave rectificationMeasuring range1 V to 50 VDisplay range0.0 V to 50 VResolution0.1 VFrequency rangeDC/AC 45 Hz to 400 Hz sineAccuracy±(5% of rdg + 5 digit)Measuring sequenceApprox. 4 measurements/sInternal resistanceApprox. 1.5 MΩMax. overloadUrms = 250 VMeasurement of Interference Frequency (F)Measuring limits of error: methodMeasurement of oscillation period of the interference voltageMeasuring range6.0 Hz to 400 HzDisplay range16.0 Hz to 299.9 Hz to 999 HzResolution0.1 Hz to 1 HzRange1 V to 50 VAccuracy±(1% of rdg + 2 digit)Earthing Resistance (RE)Measuring methodCurrent and voltage measurement with probe as IEC61557-5Open circuit voltage20/48 V, ACShort circuit current250 mA ACMeasuring frequency94, 105, 111, 128 Hz selected manually or automatic. (AFC) 55 Hz in function R1Noise rejection120 dB (16 2/3 , 50 , 60, 400 Hz)Max. overloadUrms = 250 VElectrical Measurement SpecificationsIntrinsic Error or Influence QuantityReference Conditions or Specified Operating RangeDesignation CodeRequirements or Test in Accordance with the Relevant Parts of IEC 1557Type of TestIntrinsic errorReference conditionsAPart 5, 6.1RPositionReference position ±90°E1Part 1, 4.2RSupply voltageAt the limits stated by the manufacturerE2Part 1, 4.2, 4.3RTemperature0°C and 35°CE3Part 1, 4.2TSeries interference voltageSee 4.2 and 4.3E4Part 5, 4.2, 4.3TResistance of the probes and auxiliary earth electrodes0 to 100 x RA but ≤ 50 kΩE5Part 5, 4.3TSystem frequency99% to 101% of the nominal frequencyE7Part 5, 4.3TSystem voltage85% to 110% of the nominal voltageE8Part 5, 4.3TOperating errorB = ±(|A| + 1,15 √E21 E22 E23 E24 E25 E26 )Part 5, 4.3RB[%] = ± B/fiducial value x 100%A = intrinsic errorEn = variationsR = routine testT = type testMeasuring range0.020 Ω to 300 kΩDisplay range0.001 Ω to 2.999 Ω3.00 Ω to 29.99 Ω30.0 Ω to 299.9 Ω0.300 kΩ to 2.999 kΩ3.00 kΩ to 29.99 kΩ30.0 kΩ to 299.9 kΩResolution0.001 Ω0.01 Ω0.1 Ω1 Ω10 Ω100 ΩAccuracy±(2% of rdg + 2 digit)Operating error±(5% of rdg + 5 digit)Measuring timeTypical 8 seconds with a fixed frequency 30 sec. max. with AFC and complete cycle of all measuring frequenciesAdditional error because of probe-and auxiliary earth electrode resistanceRH(RS + 2000 Ω)/RE x 1.25 x 10-6% + 5 digitsMeasuring error of RH and RSTyp. 10% of RE + RS + RHMax. probe resistance≤ 1 MΩMax. auxiliary earth electrode resistance≤ 1 MΩAutomatic check if error is kept within the limits required by IEC61557-5.If after a measurement of probe-, auxiliary earth electrode- and earthing resistance, a measurement error of higher than 30% is assumed because of the influencing conditions, the display shows a warning symbol and a notice that RS or RH are too high.Automatic Switchover of Measuring Resolution in Dependence to Auxiliary Earth Electrode Resistance RHRH with Umeas = 48 V< 300 Ω< 6 Ω< 60 Ω< 600 ΩRH with Umeas = 20 V< 250 Ω< 2.5 kΩ< 25 kΩ< 250 kΩResolution1 mΩ10 mΩ100 mΩ1 ΩSelective Measurement of the Earthing Resistance (RE Clamp)Measuring methodCurrent and voltage measurement with probe as per EN61557-5 and current measurement in the individual branch with additional current transformer (patent applied for).Open circuit voltage20/48 V ACShort circuit current250 mA ACMeasuring frequency94, 105, 111, 128 Hz selected manually or automatically (AFC), 55 Hz (R1)Noise rejection120 dB (162/3, 50, 60, 400 Hz)Max. overloadMax. Urms = 250 V (measurement will not be started)Measuring range0.020 Ω to 300 kΩDisplay range0.001 Ω to 2.999 Ω3.00 Ω to 29.99 Ω30.0 Ω to 299.9 Ω0.300 kΩ to 2.999 kΩ3.00 kΩ to 29.99 kΩResolution0.001 Ω0.01 Ω0.1 Ω1 Ω10 ΩAccuracy±(7% of rdg + 2 digit)Operating error±(10% of rdg + 5 digit)Additional error because of probe- and auxiliary earth typ. electrode resistanceRH(RS + 2000 Ω)/RETOTAL x 1.25 x 10-6% + 5 digitsMeasuring error of RH and RSTyp. of 10% of RETOTAL + RS + RHMeasuring timeTyp. 8 sec. with a fixed frequency 30 sec. max. with AFC and complete cycle of all measuring frequencies.Minimal current in single branch to be measured0.5 mAWith transformer (1000:1)0.1 mAWith transformer (200:1)Max. interference current through transformer3 AWith transformer (1000:1)1. With recommended current clamps/transformers.Resistance Measurement (R~)Measuring methodCurrent and voltage measurementMeasuring voltage20 V AC, square pulseShort circuit current> 250 mA ACMeasuring frequency94, 105, 111, 128 Hz selected manually or automatically (AFC)Measuring range0.020 Ω to 300 kΩDisplay range0.001 Ω to 2.999 Ω3.00 Ω to 29.99 Ω30.0 Ω to 299.9 Ω300 Ω to 2999 Ω3.00 kΩ to 29.99 kΩ30.0 kΩ to 299.9 kΩResolution0.001 Ω0.01 Ω0.1 Ω1 Ω10 Ω100 ΩAccuracy±(2% of rdg + 2 digit)Operating error±(5% of rdg + 5 digit)Measuring timeTypical 6 secondsMax. interference voltage24 V, with higher voltages measurement will not be startedMax overloadUrms max. = 250 VResistance Measurement (R DC)Measuring methodCurrent- voltage measurement as per IEC61557-4 possibleMeasuring voltage20 V DCShort circuit current250 mA DCFormation of measured valueWith 4-pole measurement wires on H, S, ES can be extended without additional error.Resistances > 1 Ω in wire E can cause additional error of 5m Ω/Ω.Measuring range0.020 Ω to 300 kΩDisplay range0.001 Ω to 2.999 Ω3.00 Ω to 29.99 Ω30.0 Ω to 299.9 Ω300 Ω to 2999 Ω3.0 kΩ to 29.99 kΩ30.0 kΩ to 299.9 kΩResolution0.001 Ω0.01 Ω0.1 Ω1 Ω10 Ω100 ΩAccuracy±(2% of rdg + 2 digit)Operating error±(5% of rdg + 5 digit)Measuring sequenceApprox. 2 measurements/sMeasuring timeTypical 4 second including reversal of polarity (2-pole or 4-pole)Maximum interference voltage≤ 3 V AC or DC, with higher voltages measurement will not be startedMaximum inductivity2 HenryMaximum overloadUrms = 250 VCompensation of Lead Resistance (RK)Compensation of lead resistance (RK) can be switched on in functions RE 3-pole, RE 4-pole (clamp), R AC, and R DC 2-poleFormation of measured valueRdisplay = Rmeasured - Rcompensated22. Value of setpoint entry RK = 0.000 Ω, variable from 0.000 to 29.99 Ω by means of measuring adjustment.Stakeless Ground Loop Measurement (Two Clamp Stakeless)Switch positionRA 4-pole (two clamp Stakeless)Resolution0.001 Ω to 0.1 ΩMeasuring range0.02 Ω to 199.9 ΩAccuracy±(7% rdg + 3 digit)Operating error±(10% rdg + 5 digit)Measuring voltageVm = 48 V AC (primary)Measuring frequency128 HzNoise current (IEXT)Max. IEXT = 10 A (AC) (RA < 20 Ω)Max. IEXT = 2 A (AC) (RA > 20 Ω)Measuring principle: Stakeless measurement of resistance in closed loops using two current transformers.Automatic range selection.The information regarding stakeless ground loop measurements is only valid when used in conjunction with the recommended current clamps at the minimum distance specified.