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Super User

The TM25R grounding resistance meter for high frequency has been developed  to ensure Testing of the power transmission towers grounding (G) without interruption of the power. This is the appropriate tool for a fast, safe and reliable grounding resistance measurement in each tower of a working line transmission, without disconnecting the ground wire.

The TM25R has a Bluetooth interface that allows remote control of it through a tablet with BlueLogg software. With it you can save the photos of the towers and the GPS coordinates of each. It also allows you to record voice comments for each measurement. This equipment is powered with its universal charger, from a built-in rechargeable battery. It is a strong equipment, easy to carry, resistant to the hard weather and geographical features of the tropical and high-mountain regions, that is why it is described as an excellent product for field works under the most severe environmental conditions.

 

Features

  • Intended for measurement of earth resistance of electricity pylons
  • Minimizes the influence of adjacent pylons, connected by the guard cable
  • Operation frequency: 25 kHz
  • Resistance reading: up to 300 Ω
  • Automatic current injection
  • Built-in memory and printer
  • Rechargeable battery

Specifications

Specifications    TM25r
Measurement ranges

0 - 300 Ω

Accuracy

± 2.5 % of reading ± 1 digit

Operating Frequency 

25KHz

Test Current 20mA automatic
Interface 

USB & Bluetooth 

Battery charger Internal or external rechargeable battery, 12 V. Internal battery autonomy: at least 2 hours.
Environment 

 -5 °C to 50 °C. (Operating)

-15 °C to 65 °C (Storage) 

Up to 95% RH (non condensing)

Weight 

4.9 Kg (Approx)

Dimension

340 x 295 x 152 mm

The EM-4058 earth tester is a digital, microprocessor controlled instrument that allows to measure the earth resistance and ground resistivity (using Wenner´s method), as well as to detect parasitic voltages present in the ground. This instrument is suitable to measure earth systems in power substations, industries, distribution networks, etc., according to IEC 61557-5.

In order to conveniently test the earth system, EM4058 allows to perform measurements using the test current which frequency may be operator-selected (270 Hz, 570 Hz, 870 Hz, 1170 Hz or 1470 Hz). On one hand, the lowest frequency will allow to analyze the earth system behavior related to fault currents of industrial frequency, while on the other hand, the measurement performed with the highest frequency will best show the behavior in connection with electrical currents caused by lightning and will offer a very high immunity related to interference voltages that are usually present in soils, specially near substations.

The instrument has four ranges that are automatically selected, covering measurements from 0.01 Ω up to 20 kΩ, which allows to obtain very accurate measurements for any kind of soils. During ground resistivity measurement, the operator may indicate the distance between spikes in order for the equipment to apply Wenner's formula and to show the resistivity value directly.

Features

  • Earth resistance measurement
  • Ground resistivity (Wenner's method)
  • High spurious voltage rejection
  • Spurious voltage measurement
  • Measure with multiples frequencies (270 Hz, 570 Hz, 870 Hz, 1170 Hz, 1470 Hz)
  • 0.01 Ω resolution
  • Up to 20 kΩ resistance range
  • Remote control through an Android App
  • Auto-range
  • Built-in memory
  • Built-in printer
  • USB interface

Specifications

Specifications   
Measurement ranges

Resistances: 0-20 Ω; 0-200 Ω; 0-2,000 Ω; 0-20 kΩ (Auto-ranging)

Resistivity :  0- 50 kΩm (auto ranging)

Voltage: 0-60 V~

Accuracy

Resistance & Resistivity measurements:

R ≤ 2 kΩ: ± (2% of the measured value ± 2 digits).
R > 2 kΩ: ± (5% of the measured value ± 2 digits).

Voltage measurements:

± (2% of the measured value + 1% of end of scale value).

Reading resolution

0.01 Ω in the resistance measurement;

0.01 Ωm in the resistivity measurement;

0.1 V in the voltage measurement.

Output Current The short-circuit current is limited to less than 20.0 mARMS (according the IEC 61557-5 - 4.5).
Operation Frequency

270 Hz (resistance or resistivity measurement)

570 Hz, 870 Hz, 1170 Hz or 1470 Hz (resistance measurement)

Max. variation: ± 1 Hz (both cases).

Battery charger A smart, microprocessor controlled, circuit adjusts the battery charge to the optimised parameters in order to ensure the maximum service life. It is supplied by means of an external AC adapter (provided with the equipment) or from a 12 V car battery.

BRT1 is the comprehensive battery operated, portable, handheld Battery Resistance Tester suitable for all Lead Acid, Lithium-ion & Nickel Cadmium cells having cell voltage of 1.2V / 2V / 6V / 12V. This is all in one single unit that allows you to measure cell terminal voltage & internal resistance in one touch without taking the battery system offline

Battery bank installations are important & essential part of various power, telecommunication, information technology, railways, marine & other industrial setups.

In order to ensure healthy performance of such installations, the batteries used need to be properly monitored. One of the quick check methods is to measure the battery voltage & resistance of individual cells of a battery string and to identify & eliminate weak battery cells and save battery string from further degradation

Features

  • Smart, rugged and portable handheld device.
  • Suitable for batteries up to 6000 Ah.
  • Tests all types of batteries having cell voltage of 1.2V / 2V / 6V / 12V. Option of self-defi ned voltage is also available.
  • Online measurement- No need to disconnect cell / string from system.
  • Simultaneously tests cell terminal voltage, internal resistance and relative percentage capacity of the cell.
  • Inbuilt reference value or self-defined value for comparison of test results with standard values.
  • Low frequency testing effectively avoids interference from capacitive resistance of battery itself.
  • Stable and accurate results in presence of high interference.
  • Fast operation & quick stabilization & auto saving of results.
  • Colour touch screen display as well as operation through keypad.
  • Large memory to store results of up-to 3000 cells.
  • Auto-calibration of unit before testing.
  • Over voltage protection & audio alarm.
  • Analysis of results through PC Data Management Software including Histogram & report printing

Specifications

Parameter DecR

Resistance
Range  Resolution Accuracy 
0-250μΩ 0.1μΩ 5% ± 6 Digits
250μΩ - 500μΩ 0.01mΩ 3% ± 6 Digits
 500μΩ - 100mΩ 0.1mΩ 1% ± 6 Digits
Voltage

0 to 16 V 

1mV  

±0.2%or reading ±6 digits

Measuring Cells Per String Up to 254
Display  Colour TFT touchscreen LCD, 320 × 240 pixel, 3.5"
Memory 3000 test results
Power Supply  Li-ion battery
Battery Life

≥5 Hrs continuous operation

Environment 0 to 50°C, up to 95% RH (non-condensing)
Dimension 210 mm x 110 mm x 60 mm
Weight 2 Kg (including accessories)

SCOPE offers High Resistance, High Voltage Decade Resistance Box - DecR. It contains number of smartly configured precision resistors. They are arranged in such a way that user can obtain desired resistance value by selecting appropriate decade switches. DecR is designed using the high quality specially selected resistors. These range of high ohm resistance decades are ideal for variety of applications, having a voltage rating up to 5 kV. It covers the resistance range from 1 kilo ohm to 1 tera ohm. DecR can also be customized as per requirement. DecR is housed in a rugged case and available in 3 / 4 / 6 / 9 decades or in binding post configuration 

Features

  • Lowest Resistance : 0.01Ω
  • Highest Resistance : 11TΩ
  • Max Voltage : 5kV
  • Best Accuracy : ± 0.1% to ±2%
  • Temp. Coefficient : 50ppm/°C
  • Volt. Coefficient : 1ppm/V
  • Configurable Decade or Binding Post

SCOPE introduces DC Trace, the most advanced and user friendly DC Earth (Ground) Fault Locator. This portable instrument consisting of Signal Generator & Signal Receiver (DC TraceR) uses latest digital signal processing technology. It’s ability to detect earth faults in live DC system quickly & accurately in online condition greatly relieves the substation maintenance engineers from nightmare of earth leakages & it’s detection.

Its capability to detect the high resistance faults upto 1MΩ, helps to detect fault at incipient stage. Use of two current sensing clamps pinpoint fault quickly by eliminating interference. It is an excellent solution for preventive maintenance & troubleshooting of ground faults. 

Features

  • Ground fault location is carried out in online condition hence no disconnection of installation is required.
  • Signal Generator has adjustable output voltages (24V, 48V, 110V, 220V, 500V and 1000V) and auto adjustable output current (5mA or up to 30mA) suitable for different applications
  • pinpoints ground fault with high ground resistance (up to 1 MΩ)
  • Digital Signal Processing Technology for detecting grounding resistance and distributed capacitance
  • Adjustable output frequency (10Hz - default, 50Hz, 60Hz & 325Hz) and special filter circuit effectively avoid interference generated from DC system itself
  • Frequency Spectrum Analysis to test the existing interference available in the circuit and selection of correct test frequency
  • Signal Receiver with adjustable sensitivity at different locations of circuit helps to locate the current leakage quickly
  • Direction (positive or reverse) indication for leakage current helps quick pinpointing of the faulty grounding point
  • Following multiple analysis & indications of ground fault makes pinpointing easy:
    • Direction of current flow
    • Phase angle difference
    • Comparison of signal strength
  • Multiple Signal receivers (optional) can work simultaneously to find out the fault quickly

Specifications

Parameter DC Trace
Fault Location Technique Direction of Current flow, Phase angle difference, Comparison of signal strength
Output Voltage 0 - 200µΩ, 2000µΩ, 20mΩ, Autoranging
Output Frequency 10Hz - Default , 50Hz, 60Hz, 325Hz
Fault Location Sensitivity  up to 1 MΩ
Current Detection Sensitivity  ≥0.1mA
Current Detection Clamp 60mm (jaw opening), Ø 65 x 30mm and Ø12 x 8mm, dual range
Display - Signal Generator 128 × 64 pixel colour LCD
Display - Signal Receiver 240 × 320 pixel 3.5” colour TFT touch screen
Power Supply - Signal Generator 3500mAh/14.4V re-chargeable Li-ion battery
Power Supply - Signal Receiver 2400mAh/8.4V re-chargeable Li-ion battery
Battery Life

≥4 Hrs

Battery Charging Input  230V / 110V AC, 50 / 60Hz
Environment 0 to 50°C, up to 95% RH (non-condensing)
Dimension - Signal Generator 270 X 240 X 120 mm
Dimension - Signal Receiver 210 X 110 X 60 mm
Weight 6kg (approx.)

BLUe series Battery Loading Units; portable instruments for controlled & monitored discharge of batteries. It is designed for integrated site discharge test, design & QC test and also for monitoring discharge process of battery bank with connected load. Single autonomous unit having inbuilt display, keypad and wireless communication with PC makes it very easy to use. It comes in different configurations ranging from 12V to 380V discharge voltages and 50A to 300A discharge currents. Various options are available to control & monitor the discharge process. With the help of optional Cell Monitoring Unit - CELLMon, voltage of each individual cell can be monitored & data sent to main BLUe unit and then from main unit to PC via wireless communication. Each BLUe unit is supplied with PC downloading & analysis software for real time monitoring of discharge process.

Features

  • Portable unit with rolling wheels thus convenient for onsite testing.
  • Optional wireless CELLMon enables the process PC monitoring both for discharging and charging.
  • BLUe sets 4 conditions for auto shut-down of discharge process so secured and time-saving operation.
  • Continue discharge facility is available when previous discharge is stopped abnormally.
  • Parallel connection of two discharging units for mass discharge.
  • Real-time display of voltage for each cell with the help of Cell Monitoring Unit, CELLMon.
  • Accurate data results and vivid waveforms.
  • Auto sorting for lag-out batteries during discharging.
  • AC & DC power supply modes for diǑerent needs.
  • Integrated functions for displaying, controlling and discharging.
  • Safe circuit design to avoid damage of battery when testing.
  • Direct USB drive for convenient data transfer to PC.
  • Powerful battery discharge monitor software for data analyzing and report printing
  • Thermal cut-off and automatic overload protection.
  • Customised Models available other than standard 15 models 

Specifications

Parameter BLUe
Power

AC 220V/110V, 50Hz/60Hz

Sampling Frequency  5 samples/minute
Display  LCD, 128 x 64 Pixel
Environment -10°C to 50°C, up to 95% RH (non-condensing)

 

SCOPE introduces its next generation of hugely popular CRM series contact resistance meter, CRM100B+ in all new super light avatar, based on cutting edge ultra capacitor technology. CRM incorporates some state of the art hardware & smart software features making it a must have tool for testing & maintenance engineers.

CRM directly measures micro-ohm values at 100A DC under live EHV switchyard conditions quickly & accurately. It is specially designed to reliably measure micro-ohm contact resistances of Circuit Breakers, Isolators, Busbar joints, earth switch joints, welded joints etc., under the hostile electrostatic noise found in live EHV switchyards up-to 765 kV. SCOPE’s ability to make electronics work in such environment enables CRM to measure mili-volts signal in the presence of kilo-volts noise. 

CRM is equally suitable for MV / HV / EHV equipments and is very useful to Power Companies, Equipment Manufacturers, Testing & Commissioning Companies and Test Laboratories etc.

Features

  • A radically new design makes CRM the lightest available contact resistance meter.
  • Simultaneous & multiple samples of test current and voltage drop are taken at high speed using fast & high resolution ADCs.
  • Resistance will be calculated by taking actual V/I ratio and averaging of individual samples giving stable & accurate results. It makes it independent of test current variations.
  • Autoranging. Direct display of micro-ohm value does away with manual calculations.
  • In built real time clock, memory and printer. Test time stamping on each record enables time references for future use.
  • Fool-proof connections and repeatability are ensured by SCOPE’s specially designed proprietary Ck clamps.
  • Supplied with rugged calibrated test lead set suitable for 4 wire measurement.
  • Optimised test lead set design gives lengths enough for testing EHV CBs, yet are lightweight.
  • Mains as well as battery operations
  • Protection against battery deep discharge.
  • Simple operation. Tests can be conducted even by technicians.
  • Instrument is continuously available for measurements one after the other. No ON/OFF duty cycle.
  • Enclosed in ultra rugged IP67 class hard moulded case.
  • PC Downloading & Analysis including ‘Trend Analysis’ possible with “CData CRM+” Software supplied with kit.
  • Instrument debug options like memory check, printer check, PC downloading check are provided.

Specifications

Parameter CRM 100B+
Test Current  100A plus. Peak Test Current will be decided by the load resistance, however 100A minimum is guaranteed
Resistance Range  0 - 200µΩ, 2000µΩ, 20mΩ, Autoranging
Resolution 0.1µΩ, 1µΩ & 10µΩ for above range respectively
 Accuracy   Value ± 1% ± 1 Digit
Output Voltage (max)   10V DC
Operation Mode  Stand Alone & PC Control 
Display  4 Line X 20 character LCD. 3 ½ digit display for Test Current & Resistance 
Printer  In-built Thermal Printer
Memory 1000 records Internal
In-Built Battery Li-Ion, 11.1V, 6 Ah
Power

Input to Battery charger: 90-275V AC , 50Hz ±10%, 100 to 300V DC

Charger output - 13.5 V DC, 1500 mA Max

Communication Port  USB
Software CData CRM - For PC Control & PC Control, Downloading & Analysis, Windows based
Environment 0 to 50°C, up to 95% RH (non-condensing)
Dimension  340 x 295 x 155 mm
Weight 4kg

SCOPE introduces its next generation of hugely popular CRM series contact resistance meter, CRM200B+ in all new super light avatar, based on cutting edge ultra capacitor technology. CRM incorporates some state of the art hardware & smart software features making it a must have tool for testing & maintenance engineers.

CRM directly measures micro-ohm values at 200A DC under live EHV switchyard conditions quickly & accurately. It is specially designed to reliably measure micro-ohm contact resistances of Circuit Breakers, Isolators, Busbar joints, earth switch joints, welded joints etc., under the hostile electrostatic noise found in live EHV switchyards up-to 765 kV. SCOPE’s ability to make electronics work in such environment enables CRM to measure mili-volts signal in the presence of kilo-volts noise. 

CRM is equally suitable for MV / HV / EHV equipments and is very useful to Power Companies, Equipment Manufacturers, Testing & Commissioning Companies and Test Laboratories etc.

Features

  • A radically new design makes CRM the lightest available contact resistance meter.
  • Simultaneous & multiple samples of test current and voltage drop are taken at high speed using fast & high resolution ADCs.
  • Resistance will be calculated by taking actual V/I ratio and averaging of individual samples giving stable & accurate results. It makes it independent of test current variations.
  • Autoranging. Direct display of micro-ohm value does away with manual calculations.
  • In built real time clock, memory and printer. Test time stamping on each record enables time references for future use.
  • Fool-proof connections and repeatability are ensured by SCOPE’s specially designed proprietary Ck clamps.
  • Supplied with rugged calibrated test lead set suitable for 4 wire measurement.
  • Optimised test lead set design gives lengths enough for testing EHV CBs, yet are lightweight.
  • Mains as well as battery operations
  • Protection against battery deep discharge.
  • Simple operation. Tests can be conducted even by technicians.
  • Instrument is continuously available for measurements one after the other. No ON/OFF duty cycle.
  • Enclosed in ultra rugged IP67 class hard moulded case.
  • PC Downloading & Analysis including ‘Trend Analysis’ possible with “CData CRM+” Software supplied with kit.
  • Instrument debug options like memory check, printer check, PC downloading check are provided.

Specifications

Parameter CRM 200B+
Test Current  200A plus. Peak Test Current will be decided by the load resistance, however 200A minimum is guaranteed
Resistance Range  0 - 200µΩ, 2000µΩ, 20mΩ, Autoranging
Resolution 0.01µΩ, 0.1µΩ & 1µΩ for above range respectively
 Accuracy   Value ± 1% ± 1 Digit
Output Voltage (max)   17.5V DC
Operation Mode  Stand Alone & PC Control 
Display  4 Line X 20 character LCD. 4 ½ digit display for Test Current & Resistance 
Printer  In-built Thermal Printer
Memory 1000 records Internal
In-Built Battery Li-Ion, 11.1V, 6 Ah
Power

Input to Battery charger: 90-275V AC , 50Hz ±10%, 100 to 300V DC

Charger output - 13.5 V DC, 1500 mA Max

Communication Port  USB
Software CData CRM - For PC Control & PC Control, Downloading & Analysis, Windows based
Environment 0 to 50°C, up to 95% RH (non-condensing)
Dimension  340 x 295 x 155 mm
Weight 5kg

 

CRM 100C directly measures resistance values with DC current injection under live switchyard conditions.The CRM 100C is specially designed to reliably measure contact resistance of Circuit Breakers, Isolators, Bus Bar joints, welded joints etc., under the hostile electrostatic noise found in live EHV switchyards. It can also be used for testing cables, graphite bars etc.

It has a truly continuous current source without any ON/OFF duty cycle

Features

  • Innovative design makes CRM 100C the lightest available continuous current contact resistance meter
  • Direct display of micro-ohm value does away with manual calculations
  • Fool-proof connections and repeatability are ensured by SCOPE’s specially designed proprietory Ck clamps
  • Supplied with rugged calibrated test lead set satisfying Kelvin’s 4 wire measurement principle.
  • Selectable current ranges allows user to test various DUTs having wide resistance range.
  • Every current range is associated with selectable resistance range to achieve better resolution of results.
  • LED indication makes user aware about current injection status.
  • User-friendly Menu structure enables user to take test easily.
  • PC downloading facility is available with CData – PC Downloading & Data Management Software.(Optional)

Specifications

  • Current : 10, 20, 50, 100A DC
  • Accuracy : Value ± 0.5 % ± 1 digit
  • Display : One backlit 4 line LCD for interactive menu, test results, keyboard functions and messages,test results, 3½ digit for resistance and current values
  • Power : 230 V AC ± 15%, 50 Hz ± 10%, 500 VA
  • Dimensions : 475 x 405 x 175 mm
  • Weight : 11 kg, instrument
  • Environment: 0° to 50° C max, 95 % RH (non-condensing), Live EHV switchyard environment
  • Ranges : On SCOPE’s Calibrated Test Leads as follows
Test Current Resistance Range  Resolution
100A

199.9µΩ

1999µΩ

19.99mΩ

 0.1µΩ

1µΩ

0.01mΩ

50A  1999µΩ

19.99mΩ

 1µΩ

0.01mΩ

20A   1999µΩ

19.99mΩ

199.9mΩ

  1µΩ

0.01mΩ

0.1mΩ

10A  19.99mΩ

199.9mΩ

1999mΩ

 0.01mΩ

0.1mΩ

1mΩ

 

CRM 200B directly measures micro-ohm values at 100 Amps DC under live switchyard conditions.

CRM 200B is specially designed to reliably measure contact resistance of circuit breakers, isolators, busbar joints, welded joints etc., under the hostile electrostatic noise found in live EHV switchyards upto 765 kV.

Inbuilt rechargeable battery tremendously enhances utility as AC supply connectivity is not required.

CRM 200B operates on a rechargeable battery as well as Mains supply. It has a built-in constant current source, a precision instrumentation amplifi er, digital readout and control logic.A pulse of 200A DC is passed through the test object and voltage drop is sensed using the classical Kelvin’s 4 wire method to measure contact resistance. Both test current and resistance value are displayed on LCD.

Features

  • A radically new design makes CRM the lightest available contact resistance meter
  • Battery as well as Mains operated
  • Direct display of micro-ohm value does away with manual calculations
  • Fool-proof connections and repeatability are ensured by SCOPE’s specially designed proprietary Ck clamps
  • Supplied with rugged calibrated test lead set suitable for 4 wire measurement
  • Additional range of 20 mΩ is provided

Specifications

  • Ranges : 199.9μΩ, 1999μΩ and 19.99mΩ
  • Resolution : 0.1μΩ,1μΩ and 10μΩ respectively
  • Accuracy : Value ± 1% ± 1 digit
  • Current : 200 A DC
  • Displays : Two, 3½ digit, ½ inch LCD, for current and
  • resistance values
  • Power : 230 V AC ± 15%, 50 Hz ± 10%, 75 VA
  • Battery : Instrument operation on inbuilt , rechargeable battery (2 nos. 6V, 4.5AH)
  • Dimensions : 435 x 350 x 170 mm
  • Weight : 9 kg, instrument
  • Environment: 0° to 50° C max, 95 % RH (non-condensing), Live EHV switchyard environment

 

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