T912-A250K-002-10中文资料

VK9120UHAQOWNER’S MANUALVACUUM CLEANERThis information contains important instructions for the safe use and maintenance of the vacuum cleaner. Especially, please read all of the information on page 4, 5 for your safety. Please keep this manual in an easily accessible place and refer to it anytime.Table of contentsImportant safety instructions ......................................................................... 4~5 How to use .................................................................................................... 6~16 Assembling vacuum cleaner (6)Operating vacuum cleaner (8)Using all floor nozzle (9)Cleaning all floor nozzle (10)Using hard floor nozzle / mini turbine nozzle (11)Using the accessory nozzles (12)FOLLOW ME function (13)Emptying dust tank (14)Cleaning dust tank (15)Cleaning air filter and motor safety filter (16)How to assemble dust separator (17)Cleaning exhaust filter (18)What to do if your vacuum cleaner does not work (19)What to do if FOLLOW ME function does not work (19)What to do when the suction performance decreases (19)Read and follow all instructions before using your vacuum cleaner to prevent the risk of fire, electric shock, personal injury, or damage when using the vacuum cleaner. This guide do not cover all possible conditions that may occur. Always contact your service agent or manufacturer about problems that you do not understand. This appliance complies with the following EC Directives :-2006/95/EC Low Voltage Directive -2004/108/EC EMC Directive.This is the safety alert symbol.This symbol alerts you to potential hazards that can kill or hurt you and others.All safety messages will follow the safety alert symbol and either the word “WARNING” or “CAUTION.”These words mean:How to use Operating vacuum cleanerHow to use Using all floor nozzleHow to useCleaning all floor nozzleHow to use Using hard floor nozzle / mini turbine nozzleHow to use Using the accessory nozzlesccessory nozzles included in the"BOX" with owner's manual.How to use FOLLOW ME functionFOLLOW ME function can measure distance between the user and vacuum cleaner.After the measurement, vacuum cleaner will move automatically to keep a constant distance (about 1.0m) between the user and the vacuum cleaner.When distance between transmitting sensor in the grip handle and receiving sensors on the vacuum cleaner becomes more than 1m, Vacuum cleaner will move automatically toward the user.Indicator on hose is flickering for 1 minute, it sounds “ding~ding” like a buzzer from vacuum body.How to use Cleaning air filter and motor safety filterHow to use Cleaning exhaust filterWhat to do if your vacuum cleaner does not workCheck that the vacuum cleaner is plugged in correctly and that the electrical socket is working.What to do when the suction performance decreases• Turn off the vacuum cleaner and unplug it.• Check the telescopic pipe, flexible hose and cleaning tool for blockages or obstructions.• Check that the dust tank is not full. Empty if necessary.• Check that dust separator is not clogged with obstruction. Eliminate it.• Check that the exhaust filter is not clogged. Clean the exhaust filter if necessary.• C heck that the air filter and motor safety filter of dust separator is not clogged.Clean the air filter and motor safety filter if necessary.What to do if FOLLOW ME function does not work.• Check the transmitting sensor and receiving sensors• P lease make sure that is blocked by obstacles (wall, clothes, etc.).If the sensors were blocked, FOLLOW ME function cannot work properly.• I f transmitting sensor and receiving sensors were blocked by dust, clean the sensors using a cotton swab. Clean the sensor holes using a cotton swab periodicallyMade in Korea。

16-11-08 08:31D a t e o f i s s u e : 2016-11-08250940_e n g .x m lInstructionManual electrical apparatus for hazardous areas Device category 1Gfor use in hazardous areas with gas, vapour and mist EC-T ype Examination CertificateCE marking ATEX marking ¬ II 1G Ex ia IIC T6…T1 G aThe Ex-related marking can also be printed on the enclosed label.Standards EN 60079-0:2012+A11:2013 EN 60079-11:2012 Ignition protection "Intrinsic safety"Use is restricted to the following stated conditions Appropriate typeNJ 10-30GK-SN...Effective internal inductivity C i ≤ 120 nF ; a cable length of 10 m is considered.Effective internal inductance L i≤ 150 µH ; a cable length of 10 m is considered.G eneralThe apparatus has to be operated according to the appropriate data in the data sheet and in this instruction manual. The EU-type examination certificate has to beobserved. The special conditions must be adhered to! The ATEX directive and there-fore the EU-type-examination certificates generally apply only to the use of electrical apparatus under atmospheric conditions.The device has been checked for suitability for use at ambient temperatures of > 60 °C by the named certification authority. The surface temperature of the device remains within the required limits.For the use of apparatus outside of atmospheric conditions, a reduction of the per-missible minimum ignition energies may need to be considered.Ambient temperatureDetails of the correlation between the type of circuit connected, the maximum per-missible ambient temperature, the temperature class, and the effective internal reac-tance values can be found on the EC-type examination certificate. Note: Use the temperature table for category 1 The 20 % reduction in accordance with EN 1127-1 has already been applied to the temperature table for category 1.Installation, commissioningLaws and/or regulations and standards governing the use or intended usage goal must be observed. The intrinsic safety is only assured in connection with an appro-priate related apparatus and according to the proof of intrinsic safety. The associated apparatus must satisfy the requirements of category ia. Because of the risk of igni-tion, which can occur due to faults and/or transient currents in the equipotential bonding system, galvanic isolation is preferable in the supply and signal circuits. Associated apparatus without electrical isolation can only be used if the correspond-ing requirements of IEC 60079-14 are satisfied. If the Ex-related marking is printed only on the supplied label, then this must be attached in the immediate vicinity of the sensor. The sticking surface for the label must be clean and free from grease. The attached label must be legible and indelible, including in the event of possible chem-ical corrosion.Maintenance No changes can be made to apparatus, which are operated in hazardous areas.Repairs to these apparatus are not possible.Special conditionsProtection from mechanical dangerWhen using the device in a temperature range of -60 °C to -20 °C, protect the sensor against the effects of impact by installing an additional enclosure. The information regarding the minimum ambient temperature for the sensor as provided in the datasheet must also be observed.Electrostatic chargeWhen used in group IIC non-permissible electrostatic charges should be avoided on the plastic housing parts. Avoid electrostatic charges that can cause electrostatic dis-charge when installing or operating the device. Information on electrostatic hazards can be found in the technical specification IEC/TS 60079-32-1.Degree of protection required when installing connecting componentsThe connecting parts of the sensor must be set up in such a way that degree of pro-tection IP20, in accordance with lEC 60529, is achieved as a minimum.R e l e a s e d a t e : 2016-11-08 08:31D a t e o f i s s u e : 2016-11-08250940_e n g .x m lInstructionManual electrical apparatus for hazardous areas Device category 2Gfor use in hazardous areas with gas, vapour and mist EC-T ype Examination CertificateCE marking ATEX marking ¬ II 1G Ex ia IIC T6…T1 G aThe Ex-related marking can also be printed on the enclosed label.Standards EN 60079-0:2012+A11:2013 EN 60079-11:2012 Ignition protection "Intrinsic safety"Use is restricted to the following stated conditions Appropriate typeNJ 10-30GK-SN...Effective internal inductivity C i≤ 120 nF ; a cable length of 10 m is considered.Effective internal inductance L i ≤ 150 µH ; a cable length of 10 m is considered.G eneralThe apparatus has to be operated according to the appropriate data in the data sheet and in this instruction manual. The EU-type examination certificate has to beobserved. The special conditions must be adhered to! The ATEX directive and there-fore the EU-type-examination certificates generally apply only to the use of electrical apparatus under atmospheric conditions.The device has been checked for suitability for use at ambient temperatures of > 60 °C by the named certification authority. The surface temperature of the device remains within the required limits.For the use of apparatus outside of atmospheric conditions, a reduction of the per-missible minimum ignition energies may need to be considered.Maximum permissible ambient temperature T amb Details of the correlation between the type of circuit connected, the maximum per-missible ambient temperature, the temperature class, and the effective internal reac-tance values can be found on the EC-type examination certificate.Installation, commissioningLaws and/or regulations and standards governing the use or intended usage goal must be observed. The intrinsic safety is only assured in connection with an appro-priate related apparatus and according to the proof of intrinsic safety. If the Ex-related marking is printed only on the supplied label, then this must be attached in the imme-diate vicinity of the sensor. The sticking surface for the label must be clean and free from grease. The attached label must be legible and indelible, including in the event of possible chemical corrosion.Maintenance No changes can be made to apparatus, which are operated in hazardous areas.Repairs to these apparatus are not possible.Special conditionsProtection from mechanical dangerWhen using the device in a temperature range of -60 °C to -20 °C, protect the sensor against the effects of impact by installing an additional enclosure. The information regarding the minimum ambient temperature for the sensor as provided in the datasheet must also be observed.Degree of protection required when installing connecting componentsThe connecting parts of the sensor must be set up in such a way that degree of pro-tection IP20, in accordance with lEC 60529, is achieved as a minimum.16-11-08 08:31D a t e o f i s s u e : 2016-11-08250940_e n g .x m lInstructionManual electrical apparatus for hazardous areas Device category 3G (nA) for use in hazardous areas with gas, vapour and mist Certificate of ComplianceCE marking ATEX marking ¬ II 3G Ex nA IIC T6 GcThe Ex-related marking can also be printed on the enclosed label.Standards EN 60079-0:2012+A11:2013, EN 60079-15:2010 Ignition protection category "n"Use is restricted to the following stated conditionsG eneralThe apparatus has to be operated according to the appropriate data in the data sheet and in this instruction manual. The data stated in the data sheet are restricted by this operating instruction! The special conditions must be observed!Installation, commissioningLaws and/or regulations and standards governing the use or intended usage goal must be observed. If the Ex-related marking is printed only on the supplied label, then this must be attached in the immediate vicinity of the sensor. The sticking surface for the label must be clean and free from grease. The attached label must be legible and indel-ible, including in the event of possible chemical corrosion.MaintenanceNo changes can be made to apparatus, which are operated in hazardous areas.Repairs to these apparatus are not possible.Special conditionsMinimum series resistance R V A minimum series resistance R V is to be provided between the power supply voltage and the proximity switch in accordance with the following list. This can also be assured by using a switch amplifier.Maximum operating voltage U BmaxThe maximum permissible operating voltage UB max is restricted to the values in the following list. T olerances are not permissible.Maximum permissible ambient temperature T Umax Values can be obtained from the following list, depending on the max. operating voltage Ub max and the minimum series resistance Rv. at U Bmax =9 V , R V =562 Ω58 °C (136.4 °F) using an amplifier in accordance with EN 60947-5-6 58 °C (136.4 °F)Protection from mechanical danger The sensor must not be exposed to ANY FORM of mechanical danger.Protection from UV lightThe sensor and the connection cable must be protected from damaging UV-radiation. This can be achieved when the sensor is used in internal areas.Protection of the connection cable The connection cable must be prevented from being subjected to tension and torsional loading.Protection against transients Ensure transient protection is provided and that the maximum value of the transient pro-tection (140% of 85 V) is not exceeded.Material selection accessoriesWhen selecting accessories, ensure that the material allows the temperature of the enclosure to rise to up to 70 °C.R e l e a s e d a t e : 2016-11-08 08:31D a t e o f i s s u e : 2016-11-08250940_e n g .x m lInstructionManual electrical apparatus for hazardous areas Device category 1Dfor use in hazardous areas with combustible dust EC-T ype Examination CertificateCE marking ATEX marking ¬ II 1D Ex ia IIIC T135°C DaThe Ex-related marking can also be printed on the enclosed label.Standards EN 60079-0:2012+A11:2013 EN 60079-11:2012Ignition protection "Intrinsic safety" Use is restricted to the following stated condi-tionsAppropriate typeNJ 10-30GK-SN...Effective internal inductivity C i≤ 120 nF ; a cable length of 10 m is considered.Effective internal inductance L i ≤ 150 µHA cable length of 10 m is considered.G eneralThe apparatus has to be operated according to the appropriate data in the data sheet and in this instruction manual. The EU-type examination certificate has to beobserved. The ATEX directive and therefore the EU-type-examination certificates generally apply only to the use of electrical apparatus under atmospheric conditions.The device has been checked for suitability for use at ambient temperatures of > 60 °C by the named certification authority. The surface temperature of the device remains within the required limits.For the use of apparatus outside of atmospheric conditions, a reduction of the per-missible minimum ignition energies may need to be considered.Permissible ambient temperature rangeDetails of the correlation between the type of circuit connected, the maximum per-missible ambient temperature, the surface temperature, and the effective internal reactance values can be found on the EC-type-examination certificate. The maxi-mum permissible ambient temperature of the data sheet must be noted, in addition, the lower of the two values must be maintained.Installation, commissioningLaws and/or regulations and standards governing the use or intended usage goal must be observed. The intrinsic safety is only assured in connection with an appro-priate related apparatus and according to the proof of intrinsic safety. If the Ex-related marking is printed only on the supplied label, then this must be attached in the imme-diate vicinity of the sensor. The sticking surface for the label must be clean and free from grease. The attached label must be legible and indelible, including in the event of possible chemical corrosion.Maintenance No changes can be made to apparatus, which are operated in hazardous areas.Repairs to these apparatus are not possible.Special conditionsProtection from mechanical dangerWhen using the device in a temperature range of -60 °C to -20 °C, protect the sensor against the effects of impact by installing an additional enclosure. The information regarding the minimum ambient temperature for the sensor as provided in the datasheet must also be observed.Electrostatic chargeAvoid electrostatic charges that can cause electrostatic discharge when installing or operating the device. Information on electrostatic hazards can be found in the techni-cal specification IEC/TS 60079-32-1. Do not attach the nameplate provided in areas where electrostatic charge can build up.Degree of protection required when installing connecting componentsThe connecting parts of the sensor must be set up in such a way that degree of pro-tection IP20, in accordance with lEC 60529, is achieved as a minimum.16-11-08 08:31D a t e o f i s s u e : 2016-11-08250940_e n g .x m lInstructionManual electrical apparatus for hazardous areas Device category 3D for use in hazardous areas with combustible dust Certificate of ComplianceCE marking ATEX marking ¬ II 3D Ex tc IIIC T80°C DcThe Ex-related marking can also be printed on the enclosed label.Standards EN 60079-0:2012+A11:2013, EN 60079-31:2014Protection by enclosure "tc" Some of the information in this instruction manual is more specific than the information provided in the datasheet.G eneralThe corresponding datasheets, declarations of conformity, EC-type examination certifi-cates, certifications, and control drawings, where applicable (see datasheets), form an integral part of this document. These documents can be found at . The maximum surface temperature of the device was determined without a layer of dust on the apparatus. Some of the information in this instruction manual is more specific than the information provided in the datasheet.Installation, commissioningLaws and/or regulations and standards governing the use or intended usage goal must be observed. If the Ex-related marking is printed only on the supplied label, then this must be attached in the immediate vicinity of the sensor. The sticking surface for the label must be clean and free from grease. The attached label must be legible and indel-ible, including in the event of possible chemical corrosion.MaintenanceNo changes can be made to apparatus, which are operated in hazardous areas.Repairs to these apparatus are not possible.Special conditionsMinimum series resistance R V A minimum series resistance RV is to be provided between the power supply voltage and the proximity switch in accordance with the following list. This can also be assured by using a switch amplifier.Maximum operating voltage U BmaxThe maximum permissible operating voltage UBmax must be restricted to the values given in the following list. T olerances are not permitted.Maximum permissible ambient temperature T Umax Values can be obtained from the following list, depending on the max. operating voltage Ub max and the minimum series resistance Rv. at U Bmax =9 V , R V =562 Ω58 °C (136.4 °F) using an amplifier in accordance with EN 60947-5-6 58 °C (136.4 °F)Protection from mechanical danger The sensor must not be exposed to ANY FORM of mechanical danger.Protection from UV lightThe sensor and the connection cable must be protected from damaging UV-radiation. This can be achieved when the sensor is used in internal areas.Protection of the connection cable The connection cable must be prevented from being subjected to tension and torsional loading.Electrostatic chargeAvoid electrostatic charges that can cause electrostatic discharge when installing or operating the device. Information on electrostatic hazards can be found in the technical specification IEC/TS 60079-32-1. Do not attach the nameplate provided in areas where electrostatic charge can build up.。

功率表IT9120系列用户指南型号：IT9121E版本号：V1.4声明© Itech Electronic, Co., Ltd. 2019根据国际版权法，未经Itech Electronic, Co., Ltd. 事先允许和书面同意，不得以任何形式（包括电子存储和检索或翻译为其他国家或地区语言）复制本手册中的任何内容。

手册部件号IT9121E-402288版本第1版，2019 年12月12日发布Itech Electronic, Co., Ltd.商标声明Pentium是Intel Corporation在美国的注册商标。

Microsoft、Visual Studio、Windows 和MS Windows是Microsoft Corporation 在美国和/或其他国家/地区的商标。

担保本文档中包含的材料“按现状”提供，在将来版本中如有更改，恕不另行通知。

此外，在适用法律允许的最大范围内，ITECH 不承诺与本手册及其包含的任何信息相关的任何明示或暗含的保证，包括但不限于对适销和适用于某种特定用途的暗含保证。

ITECH对提供、使用或应用本文档及其包含的任何信息所引起的错误或偶发或间接损失概不负责。

如ITECH与用户之间存在其他书面协议含有与本文档材料中所包含条款冲突的保证条款，以其他书面协议中的条款为准。

技术许可本文档中描述的硬件和／或软件仅在得到许可的情况下提供并且只能根据许可进行使用或复制。

限制性权限声明美国政府限制性权限。

授权美国政府使用的软件和技术数据权限仅包括那些定制提供给最终用户的权限。

ITECH 在软件和技术数据中提供本定制商业许可时遵循FAR 12.211（技术数据）和12.212（计算机软件）以及用于国防的DFARS252.227-7015（技术数据－商业制品）和DFARS 227.7202-3（商业计算机软件或计算机软件文档中的权限）。

安全声明小心标志表示有危险。

Agilent U1251A and U1252A Handheld Digital Multimeter Data SheetFeatures•50,000 count dual display•Up to 0.025 % basic DC voltage accuracy•True RMS measurement•J-type and K-type temperaturemeasurements•Data storage capability with optional IR-USB link to PC•20 MHz frequency counter •Programmable square wavegenerator•-20 °C to +55 °C operatingtemperature•Safety certified with EN/IEC 61010-1 Category III 1000 V overvoltageprotection•Built-In battery charger capability •Multi function tilt stand IntroductionThe Agilent U1250A series Handheld DigitalMultimeter gives you 4.5 digit resolutionwith a 50,000 count full scale and basic DCvoltage accuracy of up to 0.025%. Thesefeatures give you the flexibility to performquick validation measurements or performtolerance checks and marginal failure trou-bleshooting. It also offers True RMS, dBm,and AC+DC readings to measure both sinu-soidal and non-sinusoidal waveforms accu-rately.Versatile functionalityThe U1250A series Handheld DigitalMultimeter delivers many features that youwould expect from a benchtop multimeter.These instruments come with all the basicmeasurement functions and addedfunctionality needed in today’s changingmaintenance environment such astemperature measurements, frequencymeasurements, 4-20 mA process loopmeasurement with % readout, 20 MHzfrequency counter (U1252A only), and dBmmeasurements.More than just a measurement toolThe U1250A series expands users’capability beyond typical measurements.These instruments provide data storagecapability which can be done both manuallyor automatedly with the optional PCinterface cable. The accompanying AgilentGraphical User Interface (GUI) furtherextends the potential of these instrumentsby allowing you to customize your datalogging needs. Other features includesophisticated math functions that allowusers to manipulate the data obtained. TheU1252A can be used as a programmablesquare wave generator that allows you tostimulate electronic circuits for debuggingpurposes.Uncompromising ruggedness and safetyUse The U1250A series Handheld DigitalMultimeter with confidence in almost anyenvironment. These instruments come in arobust package with shock absorbingovermold and operate within their ratedspecifications from –20 °C right up to+55 °C. Furthermore, these instruments arerated at Cat III 1000 V (IEC 61010 Compliant)which allows you to confidently makemeasurements on building electricalinstallations, at locations between the maincircuit breaker and the mains socket-outlets, including measurements performedon equipment that is permanentlyconnected to the mains circuits.Visit our Web for more information onAgilent’s Handheld Digital Multimeter atAgilent TechnologiesU1251A & U1252A DC SPECIFICATIONSTEMPERATURE AND CAPACITANCE SPECIFICATIONSFUNCTION RAN G E RESOLUTION TEST CURRENT/ BURDEN VOLTAGE ACCURACY ± (% of reading + No. of Least Significant Digit)U1251A U1252A VOLTAGE (1)50.000 mV 0.001 mV -0.05+50(2)0.05+50(2)500.00 mV0.01 mV -0.03+50.025+51000.0 mV 0.1 mV -5.0000 V 0.0001 V -50.000 V 0.001 V -500.00 V 0.01 V -0.03+51000.0 V0.1 V -RESISTANCE500.00 Ω(3)0.01 Ω 1.04 mA 0.08+100.05+105.0000 k Ω(3)0.0001 k Ω416 µA 0.08+50.05+550.000 k Ω0.001 k Ω41.2 µA 500.00 k Ω0.01 k Ω 4.12 µA 5.0000 M Ω0.0001 M Ω375 nA 0.2+50.15+550.000 M Ω(4)0.001 M Ω187 nA 1+101+5500.00 M Ω0.01 M Ω187 nA N/A 3+10<200M Ω/8+10>200M Ω500 nS (5)0.01 nS 187 nA1+201+10CURRENT500.00 µA 0.01 µA 0.06 V (100 Ω)0.1+5(6) 0.05+5(6) 5000.0 µA 0.1 µA 0.6 V (100 Ω)0.1+5(6) 0.05+5(6) 50.000 mA 0.001 mA 0.09 V (1 Ω)0.2+5(6)0.15+5(6)440.00 mA 0.01 mA 0.9 V (1 Ω)0.2+5(6)0.15+5(6)5.0000 A0.0001 A 0.2 V (0.01 Ω)0.3+100.3+1010.000 A (7)0.001 A 0.4 V (0.01 Ω)0.3+100.3+5DIODE TEST-0.1 mV1.04 mA0.05 + 5FUNCTIONTHERMOCOUPLETYPE RANGE RESOLUTIONACCURACYMEASURING RATE AT FULLSCALE MAX. DISPLAYTEMPERATUREK-200 ~ 1372 °C/-328 ~ 2502 °F 0.1 °C/0.1 °F0.3 % +3 °C/0.3 %+6 °FN/AN/A J (8)-210 ~ 1200 °C/-346 ~ 2192 °F 0.1 °C/0.1 °F0.3 % +3 °C/0.3 %+6 °FN/AN/ACAPACITANCE -10.000 nF 0.001 nF 1%+8 4 times/sec.11000 counts-100.00 nF 0.01 nF1%+5-1000.0 nF 0.1 nF-10.000 µF 0.001 µF-100.00 µF 0.01 µF-1000.0 µF 0.1 µF1 time/sec.-10.000 mF 0.001 mF 0.1 times/sec.-100.00 mF0.01 mF 3%+100.01 times/sec.[1] Input impedance: >1G Ω for 50 mV~1000 mV ranges. For U1251A, input impedance is 10 M Ω (nominal) for 5 V~1000 V ranges. For U1252A, input impedance is 10 M Ω (nominal) in parallel with 1.1 M Ω at dual display.[2] The accuracy could be 0.05%+10 for U1251A and 0.05%+5 for U1252A. Always use NULL function to zero out the thermal effect before measuring the signal.[3] The accuracy of 500 Ω and 5 k Ω is specified after NULL function, which is used to subtract the test lead resistance and the thermal effect [4] For the range of 50 M Ω, the R.H. is specified for <60%.[5] The accuracy is specified for <50 nS and after NULL function with open test lead.[6] Always use NULL function to zero out thermal effect with open test lead before measuring the signal. If NULL function is not used, an additional 20 counts needs to be added to the DC current accuracy. Thermal effect could occur due to the following:•Wrong operation to measure the high voltage of 50 V ~ 1000 V for resistance, diode, and mV measurements.•After battery-charging has completed.•After measuring a current greater than 440 mA, it is suggested that the meter be left to cool down for twice the measuring time used.[7] Current can be measured up to 10 A continuously. An additional 0.5% needs to be added to the specified accuracy if the signal measured is in therange of 10 A~20 A for 30 seconds maximum. After measuring a current of > 10 A, leave the meter to cool down for twice the measuring time used before application of low current measurement.[8] Only available in U1252A.U1251A AC SPECIFICATIONSU1252A AC SPECIFICATIONSFUNCTIONRANGE RESOLUTION ACCURACY ± (% of reading + No. of Least Significant Digit)FREQUENCY30 Hz ~ 45 Hz 45 Hz ~ 1 kHz 1 kHz ~ 10 kHz 10 kHz ~ 30 kHzTRUE-RMSAC VOLTAGE50.000 mV 0.001 mV 1+600.6+40 1.0+40 1.6+60500.00 mV 0.01 mV 1+600.6+25 1.0+40 1.6+601000.0 mV 0.1 mV 1+600.6+25 1.0+25 1.6+405.0000 V 0.0001 V 1+600.6+25 1.0+25 1.6+4050.000 V 0.001 V 1+600.6+25 1.0+25 1.6+40500.00 V 0.01 V 1+600.6+25 1.0+25 1.6+40(1)1000.0 V0.1 V1+600.6+401.0+40N/AFUNCTION RAN G E RESOLUTION ACCURACY ± (% of reading + No. of Least Significant Digit)FREQUENCY30 Hz ~ 45 Hz 45 Hz ~ 2 kHz 2 kHz ~ 20 kHz AC CURRENT500.00 µA (2)0.01 µA 1.5+500.8+203+805000.0 µA 0.1 µA 1.5+400.8+203+6050.000 mA 0.001 mA 1.5+400.8+203+60440.00 mA 0.01 mA 1.5+400.8+203+605.0000 A 0.0001 A 2+40(4)0.8+203+60 <3 A/5 kHz10.000 A (3)0.001 A2+40(4)0.8+20FUNCTIONRAN G E RESOLUTION ACCURACY ± (% of reading + No. of Least Significant Digit)FREQUENCY 20 Hz ~ 45 Hz 45 Hz ~ 1 kHz 1 kHz ~ 10 kHz10 kHz ~ 20 kHz20 kHz ~100 kHz (5)TRUE-RMS AC VOLTAGE50.000 mV 0.001 mV 1.5+600.4+400.7+400.75+40 3.5+120500.00 mV 0.01 mV 1.5+600.4+250.4+250.75+40 3.5+1201000.0 mV 0.1 mV 1.5+600.4+250.4+250.75+40 3.5+1205.0000 V 0.0001 V 1.5+600.4+250.4+250.75+40 3.5+12050.000 V 0.001 V 1.5+600.4+250.4+250.75+40 3.5+120500.00 V 0.01 V 1.5+600.4+250.4+251.5+40 3.5+120(1)1000.0 V0.1 V1.5+600.4+400.4+401.5+40(1)N/AFUNCTION RAN G E RESOLUTION ACCURACY ± (% of reading + No. of Least Significant Digit)FREQUENCY20 Hz ~ 45 Hz 45 Hz ~ 1 kHz 1 kHz ~ 20 kHz 20 kHz ~ 100 kHz (5)AC CURRENT500.00 µA (2)0.01 µA 1.0+200.7+200.75+205+805000.0 µA 0.1 µA 1.0+200.7+200.75+205+8050.000 mA 0.001 mA 1.0+200.7+200.75+205+80440.00 mA 0.01 mA 1.0+200.7+20 1.5+205+805.0000 A 0.0001 A 1.5+20(4)0.7+203+60 <3 A/5 kHzN/A10.000 A (3)0.001 A1.5+20(4)0.7+20[1] The input signal is lower than the product of 20,000,000 V-Hz (product of voltage and frequency).[2] Input current >35 µArms.[3] Current can be measured from 2.5 A up to 10 A continuously. An additional 0.5% needs to be added to the specified accuracy if the signal measured is in the range of 10 A ~ 20 A for 30 seconds maximum. After measuring a current of >10 A, leave the meter to cool down for twice the measuring time used before application of low current measurement.[4] Input current < 3 Arms.[5] The additional error to be added as frequency >20 kHz and signal input<10%of range: 3 counts of LSD per kHz.U1252A AC+DC SPECIFICATIONSU1251A & U1252A FREQUENCY SPECIFICATIONS (2)U1251A FREQUENCY SENSITIVITY DURING VOLTAGE MEASUREMENTFUNCTION RAN G ERESOLUTION ACCURACY ± (% of reading + No. of Least Significant Digit)FREQUENCY 30 Hz ~ 45 Hz 45 Hz ~ 1 kHz 1 kHz ~ 10 kHz10 kHz ~ 20 kHz20kHz ~100kHz (1)VOLTAGE50.000 mV0.001 mV 1.5+800.4+600.7+600.8+60 3.5+220500.00 mV 0.01 mV 1.5+650.4+300.4+300.8+45 3.5+1251000.0 mV 0.1 mV 1.5+650.4+300.4+300.8+45 3.5+1255.0000 V 0.0001 V 1.5+650.4+300.4+300.8+45 3.5+12550.000 V 0.001 V 1.5+650.4+300.4+300.8+45 3.5+125500.00 V 0.01 V 1.5+650.4+300.4+301.5+45 3.5+125(2)1000.0 V0.1 V1.5+650.4+450.4+451.5+45(2)N/AFUNCTION RAN G E RESOLUTIONACCURACY ± (% of reading + No. of Least Significant Digit)FREQUENCY30 Hz ~ 45 Hz 45 Hz ~ 1 kHz 1 kHz ~ 20 kHz CURRENT500.00 µA (3)0.01 µA 1.1+250.8+250.8+255000.0 µA 0.1 µA 1.1+250.8+250.8+2550.000 mA 0.001 mA 1.2+250.9+250.9+25440.00 mA 0.01 mA 1.2+250.9+250.9+255.0000 A 0.0001 A 1.8+30(5)0.9+30 3.3+70<3 A/5 kHz10.000 A (4)0.001 A1.8+30(5)0.9+25RANGE RESOLUTION ACCURACY MINIMUM INPUT FREQUENCY99.999 Hz 0.001 Hz 0.02%+3<600 kHz1 Hz999.99 Hz 0.01 Hz 9.9999 kHz 0.0001 kHz 99.999 kHz 0.001 kHz 999.99 kHz0.01 kHzFREQUENCY SENSITIVITY AND TRIGGER LEVEL FOR U1251AINPUT RANGEMINIMUM SENSITIVITY(R.M.S. Sine-Wave)TRIGGER LEVEL FOR DC COUPLING (Maximum input for specified accuracy = 10 x Range or1000 V)20 Hz-100 kHz >100 kHz ~ 200 kHz< 100 kHz >100 kHz ~ 200 kHz 50.000 mV 10 mV15 mV 10 mV 15 mV 500.00 mV 25 mV 35 mV 60 mV 70 mV 1000.0 mV 40 mV 50 mV 100 mV150 mV 5.0000 V 0.25 V 0.5 V 0.5 V / 1.25 V (< 100 Hz)0.6 V 50.000 V 2.5 V 5 V 5 V 6 V 500.00 V 25 V N/A 50 V N/A 1000.0 V50 V N/A 300 V N/A[1] The additional error to be added as frequency >20 kHz and signal input <10%of range: 3 counts of LSD per kHz.[2] The input signal is lower than the product of 20,000,000 V-Hz (product of voltage and frequency).[3] Input current >35 µArms.[4] Current can be measured from 2.5 A up to 10 A continuously. An additional 0.5% needs to be added to the specified accuracy if the signal measured is in the range of 10 A ~ 20 A for 30 seconds maximum. After measuring a current of >10 A, leave the meter to cool down for twice the measuring time used before application of low current measurement.[5] Input current < 3 Arms.U1252A FREQUENCY SENSITIVITY DURING VOLTAGE MEASUREMENTDUTY CYCLE (1)[1] Positive or negative pulse width must be greater than 10 µs and the range of duty cycle should be considered. The range of pulse width is determined by the frequency of the signal.U1251A & U1252A FREQUENCY SENSITIVITY DURING CURRENT MEASUREMENTPEAK HOLD (Capturing changes)U1252A FREQUENCY COUNTER SPECIFICATIONS Divide 1 (secondary display “-1-”)Divide 100 (secondary display “-100-”)FREQUENCY SENSITIVITY AND TRIGGER LEVEL FOR U1252AINPUT RANGEMINIMUM SENSITIVITY(R.M.S. Sine-Wave)TRIGGER LEVEL FOR DC COUPLING (Maximum input for specified accuracy = 10 x Range or1000 V)20 Hz-200 kHz >200 kHz ~ 500 kHz< 100 kHz >100 kHz ~ 500 kHz 50.000 mV 10 mV25 mV 10 mV 25 mV 500.00 mV 70 mV 150 mV 70 mV 150 mV 1000.0 mV 120 mV 300 mV 120 mV 300 mV 5.0000 V 0.3 V 1.2 V 0.6 V 1.5 V 50.000 V 3 V5 V6 V 15 V 500.00 V 30 V < 100 kHz N/A 60 V N/A 1000.0 V50 V < 100 kHz N/A 120 V N/AMODE RANGE ACCURACY AT FULL SCALEDC Coupling0.01% ~ 99.99%0.3% per kHz + 0.3%INPUT RANGE MINIMUM SENSITIVITY (R.M.S. Sine-Wave)20 Hz - 20 kHz 500.00 µA 100 µA 5000.0 µA 250 µA 50.000 mA 10 mA 440.00 mA 25 mA 5.0000 A 1 A 10.000 A2.5 ASIGNAL WIDTH ACCURACY FOR DC mV/VOLTAGE/CURRENTSingle event > 1 ms 2% + 400 for all ranges Repetitive > 250 µs2% + 1000 for all rangesRANGE RESOLUTION ACCURACY SENSITIVITYMIN. INPUT FREQUENCY99.999 Hz 0.001 Hz 0.02% + 3100 mV R.M.S.0.5 Hz999.99 Hz 0.01 Hz 0.002% + 5, <2 MHz9.9999 kHz 0.0001 kHz 99.999 kHz 0.001 kHz 999.99 kHz 0.01 kHz 200 mV R.M.S.9.9999 MHz0.0001 MHzRANGE RESOLUTION ACCURACY SENSITIVITY MIN. INPUT FREQUENCY9.9999 MHz 0.0001 MHz 0.002% + 5,<20 MHz400 mV R.M.S. 1 MHz99.99 MHz 0.001 MHz600 mV R.M.S.PULSE WIDTH (1)MODE RANGE ACCURACY AT FULL SCALE500 ms 0.01 ms 0.2 % + 32000 ms0.1 ms0.2 % + 3U1252A SQUARE WAVE OUTPUTOPERATING CHARACTERISTICS Measuring rateDECIBEL (dB) CALCULATIONOUTPUT (1) RANGERESOLUTION ACCURACY FREQUENCY 0.5, 1, 2, 5, 10, 15, 20, 25, 30, 40, 50, 60, 75, 80, 100, 120, 150, 200, 240, 300, 400, 480, 600, 800, 1200, 1600, 2400, 4800 Hz0.01Hz 0.005% +2DUTY CYCLE (2) 0.39% ~ 99.60%0.390625%0.4% of full scale (3)PULSE WIDTH (2)1/Frequency Range/2560.2 ms+ Range/256AMPLITUDEFixed 0 ~ +2.8 V0.1 V0.2 VFunction Times/second ACV7ACV + dB 7DCV 7ACV7AC + DC V 2 Ω/nS 14Diode14Capacitance 4 (< 100 µF)DCI 7ACI7AC + DC I 2Temperature 6Frequency 2 (>10 Hz)Duty cycle 1 (>10 Hz)Pulse width1 (>10 Hz)dB BASE REFERENCE DEFAULT REFERENCE1 mW (dBm)1-9999 Ω50 Ω1 V (dBV)1 V1 VGENERAL SPECIFICATIONSDISPLAYBoth primary and secondary displays are 5-digit liquid crystal display (LCD) with maximum reading of 50,000 counts. Automatic polarity indication.POWER CONSUMPTION105 mVA / 420 mVA (with backlit) maximum (U1251A) 165 mVA / 480 mVA (with backlit) maximum (U1252A)OPERATING ENVIRONMENTFull accuracy at –20 °C to 55 °CFull accuracy to 80% RH for temperature up to 35 °C, decreasing linearly to 50% RH at 55 °C Altitude:0 - 2000 meters per IEC 61010-1 2nd Edition CAT III, 1000 V 2000 - 3000 meters per IEC 61010-1 2nd Edition CAT III, 600 V STORAGE COMPLIANCE 40 °C to 70 °C SAFETY COMPLIANCECertified by CSA for IEC/EN/CSA/UL 61010-1 2nd EditionMEASUREMENT CATEGORYCAT III 1000 V Overvoltage Protection up to 2000m, Pollution degree 2EMC COMPLIANCECertified to IEC/EN 61326: 2002, CISPR 11, and equivalents for Group 1, Class ACOMMON MODE REJECTION RATIO (CMRR)> 90 dB at DC, 50/60 Hz + 0.1% (1k Ω ubalanced)NORMAL MODE REJECTION RATIO (NMRR)> 60 dB at DC, 50/60 Hz + 0.1%TEMPERATURE COEFFICIENT0.15 * (specified accuracy)/ °C (from -20 °C to 18 °C or 28 °C to 55 °C)SHOCK and VIBRATION Tested to IEC/EN 60068-2DIMENSION (HxWxD)203.5 mm x 94.4 mm x 59.0 mm WEIGHT504±5 grams with battery (U1251A) 527±5 grams with battery (U1252A)CHARGING TIME (only U1252)<220 minutes approx. at the environment of 10 °C to 30 °C. WARRANTY1 year factory +2 years extended warranty[1] Output impedance: 3.5 k Ω maximum.[2] The positive or negative pulse width must be greater than 50 µs for adjusting the duty cycle or pulse width under different frequency. Else, the accuracy and range will be different from the definition.[3] For signal frequencies greater than 1 kHz, an addition of 0.1 % per kHz is added to the accuracy.94.4 mm203.5 mmAccessories Included:•Soft carrying case•Alkaline 9 V Battery (U1251A only)•Rechargeable 7.2 V Battery (U1252A only)•Power cord & AC adaptor (U1252A only)•U1160A Standard Test Lead Kit •Quick Start Guide•Reference CD containing the User’s Guide, application software and instrument drivers •Certificate of Calibration (CoC)•Test Report Optional Accessories (Sold seperately):•U1161A Extension test lead kit •U1173A IR to USB cable•U1180A Thermocouple lead kitDIMENSIONAgilent TechnologiesFor more information on Agilent Technologies’ products, applications or services, please con-tact your local Agilent office. The complete list is available at:/find/contactus Phone or Fax United States:(tel) 800 829 4444(fax) 800 829 4433Canada:(tel) 877 894 4414(fax) 800 746 4866China:(tel) 800 810 0189(fax) 800 820 2816Europe:(tel) 31 20 547 2111Japan:(tel) (81) 426 56 7832(fax) (81) 426 56 7840Korea:(tel) (080) 769 0800(fax) (080) 769 0900Latin America:(tel) (305) 269 7500Taiwan:(tel) 0800 047 866(fax) 0800 286 331Other Asia Pacific Countries:(tel) (65) 6375 8100(fax) (65) 6755 0042Email:*****************Contacts revised: 05/27/05Product specifications and descriptions in this document subject to change without notice.© Agilent Technologies, Inc. 2006Printed in USA, July 25, 20065989-5509ENAgilent Technologies’ Test and Measurement Support, Services, and AssistanceAgilent Technologies aims to maximize the value you receive, while minimizing your risk and problems. We strive to ensure that you get the test and measurement capabilities you paid for and obtain the support you need. Our extensive support resources and services can help you choose the right Agilent products for your applications and apply them successfully. Every instrument and system we sell has a global warranty. Two concepts underlie Agilent’s overall support policy: “Our Promise” and “Your Advantage.”Our PromiseOur Promise means your Agilent test and measurement equipment will meet its advertised performance and functionality. When you are choosing new equipment, we will help you with product information, including realistic performance specifications and practicalrecommendations from experienced test engineers. When you receive your new Agilent equipment, we can help verify that it works properly and help with initial product operation.Your AdvantageYour Advantage means that Agilent offers a wide range of additional expert test and measurement services, which you can purchase according to your unique technical andbusiness needs. Solve problems efficiently and gain a competitive edge by contracting with us for calibration, extra-cost upgrades, out-of-warranty repairs, and on-site education and training, as well as design, system integration, project management, and other professional engineering services. Experienced Agilent engineers and technicians worldwide can help you maximize your productivity, optimize the return on investment of your Agilent instruments and systems, and obtain dependable measurement accuracy for the life of those products.Agilent Email Updates/find/emailupdatesGet the latest information on the products and applications you select.Agilent Direct/find/agilentdirectQuickly choose and use your test equipment solutions with confidence.。