Fluke 1625 user manual Specifications

Page 19

 

 

 

Earth/Ground Tester

 

 

 

Specifications

 

 

Operation:

Central rotary switch and function keys

Working temperature range:

-10 °C

… +50 °C

Operating temperature range:

0

°C

… +35 °C

Nominal temperature range:

18

°C

… +28 °C

Storage temperature range:

-30 °C

… +60 °C

Note

The chart of four temperature ranges for the instrument exist to sat- isfy European Standards requirements; the instrument can be used over the full Working temperature range by using the temperature co- efficient to calculate accuracy at the ambient temperature of use.

Temperature coefficient:

± 0.1 % of range / Kelvin

Operating errors:

refer to operating temperature range and RH

 

< 20 RE, RS < 100 RE

The maximum percentage operating error within the measurement range does not exceed ± 30 % with the measured value as fiducial value, as determined in accordance with TABLE 1.

The operating error applies under the rated operating conditions given in IEC1557-1 and the following:

•injection of series interference voltages with system frequencies of 400 Hz, 60 Hz, 50 Hz, 16 2/3 Hz or with d.c. voltage respectively across the terminals E (ES) and S. The r.m.s. value of the series inter- ference voltage shall be 3 V;

•resistance of the auxiliary earth electrode and of the probes: 0 to 100 x RA but ≤ 50 kΩ;

•system voltages between 85 % and 110 % of the nominal voltage and between 99 % and 101 % of the nominal system frequency for meas- uring equipment with a mains supply and/or measuring equipment de- riving its output voltage directly from the distribution system.

Limits of error:

refer to nominal temperature range

Climate class:

C1 (IEC 654-1), -5 °C...+45 °C, 5 %...95 % RH

Type of protection:

IP 56 for case, IP 40 for battery door according to

 

EN 60529

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Contents 1625 Limited Warranty and Limitation of Liability Table of Contents 1625 List of Tables 1625 List of Figures 1625 Introduction Earth/Ground TesterDisplays the Fluke 1625 Earth/Ground Tester Lists the models and accessories Models and AccessoriesSafety Instructions Checking the Scope of Delivery SetupQualified Staff UnpackingGeneral Additional AccessoriesDescription of Functions AssemblyMeasurement of Interference Frequency FST Measurement of Interference Voltage USTLow Resistance Measurement RF Measurement of Earthing Resistance RESelective Measurement of Earthing Resistance RE a Resistance Measurement R~LO-BAT SpecificationsSpecifications 1625 Measurement of Interference Frequency F ST Measurement of Interference Voltage DC + AC USTEarthing Resistance R E Ence Quan Fied Operating Code Relevant 100% RH with Umeas = 48 RH with Umeas = 20 Resolution RH RS + 2000Ω ⋅1.25 ⋅10−6 % + 5digits Selective Measurement of the Earthing Resistance REA+2 digit KΩ .. .99 kΩ 10 Ω 30.0 kΩ .. .9 kΩ 100 Ω Resistance Measurement RF Compensation of Lead Resistance RK Illustrates the operating elements described below Description of the Operating ElementsDo not open or close the instrument with force Display Elements Description of Display ElementsEfgh Procedure of MeasurementsStandard mode Power on FunctionsActivation of display illumination OperationControl Loop Control Loop See Compensation of Earth Electrode Connecting Lead Checking of Correct Measuring Connection Socket Alloca- tion Measurement of Interference Voltages and Frequen- cies Safety Control MeasurementsMeasurement of Interference Voltages and Frequencies Measurement of Earthing ResistancesEarthing Resistances Measurement Method Pole/4-pole Measurement of Earthing ResistanceRemarks for the setting of earth spikes Evaluation of measured value RE1 20 m Remarks for the Setting of Earth Spikes Measurements on High Voltage Pylons Accordingly, these equivalent resistances are displayed as RE = Measuring Earthing Impedance with 55 Hz R Correcting Clip-on Transformer ErrorsWithclip − ontransformer Compensation of Earth Electrode Connecting Lead Compensation of Earth Electrode Connecting LeadMeasurement of Soil Resistivity Measurement of Soil Resistivity= 2π .a.RE Restivity Soil Distances of Probe Resistance Measurement R~ Measurement of ResistancesResistance Measurement RF Resistance Measurement RFEvaluation of Measured Value Compensation of Measuring Lead ResistanceCompensation of Measuring Lead Resistance Changing of All Data Settings with Personalized CodeFunction Parameter Setting range Standard Presetting Storing a Code Deleting a Code Description of Displays Function Condition Description of DisplaysFunction Displays Condition Too high 2nd aux ON/OFF No reactions to button control etc EE Prom Care and MaintenanceReplacing Batteries Care and MaintenanceStorage RecalibrationIntroduction Stakeless Earth/Ground Resistance TestingComply with DIN ISO Purpose Principle of Operation= R X + Is a reasonable approximation Operation Erder 10 cm Settings on the TesterApplications Lightning Protection Footing ground Significance Description of DisplaysDisplay Significance Earthing Resistance Earthing Resistance = 1 m Soil Resistivity ρEJan July Dec Month Measuring Method Potential Gradient Area US1 Earth Impedance R* on High Voltage Transmission Lines 1625

1625 specifications

The Fluke 1625 is a versatile and essential tool in the realm of insulation testing, primarily aimed at electricians, maintenance professionals, and equipment specialists. Throughout its design, Fluke has incorporated a range of features and technologies intended to enhance testing efficiency, accuracy, and user experience, making the 1625 a standout choice for those in need of reliable insulation measurement tools.

One of the key features of the Fluke 1625 is its ability to perform insulation resistance testing with several voltage settings. The device offers test voltages of 250V, 500V, and 1000V, making it adaptable for different applications, including low-voltage and high-voltage systems. This flexibility is paramount in ensuring that technicians can perform tests on a wide variety of electrical systems without needing multiple devices.

The 1625 also boasts an impressive insulation range of up to 4 GΩ, providing the capability to measure insulation resistance accurately across a spectrum of installations. A notable technology integrated into the unit is the automatic discharge function, which ensures that any stored energy in capacitive components is safely released after testing, enhancing the safety of operations.

Furthermore, the Fluke 1625 includes a patented 'Insulation Diagnostic' feature that assists users in identifying problematic areas in an electrical system. This feature helps professionals determine whether insulation is adequate, helping to prevent potential failures, accidental shorts, and system downtimes.

In addition to insulation resistance testing, the Fluke 1625 also supports other functionalities, including continuity testing and low-resistance measurements. This multi-functional capability streamlines operations, allowing technicians to conduct multiple tests without switching devices, resulting in increased productivity.

The device is designed with user-friendliness in mind, featuring an intuitive interface complete with large buttons and a clear display. This makes it easier for users to navigate through different testing modes and review results. To further enhance usability in challenging environments, the 1625 has a rugged, durable design, ensuring it can withstand the rigors of job sites.

Another significant characteristic of the Fluke 1625 is its ability to log test results for further analysis. It can store up to 99 datasets, which can be later reviewed or downloaded for reporting purposes. This data management capability is crucial for maintaining records, fulfilling compliance requirements, and improving operational efficiencies.

In conclusion, the Fluke 1625 is a robust and comprehensive insulation tester that incorporates essential features and advanced technologies. With its versatility, safety mechanisms, and user-friendly design, it stands out as an indispensable tool for electrical professionals committed to ensuring system reliability and safety.
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