Wednesday, 12 August 2015 07:18 Written by

MTD20KWr

The MTD20KWR digital earth tester allows for the measurement of Earth Resistances and Soil Specific Resistivity, and also the spurious voltages caused by parasitic voltages present in the soil.

This equipment is suitable for fast and easy measurement of the grounding resistance in house and industrial buildings, hospital installations, lightning rods, antennas, substations, etc. Soil resistivity measurement allows for soil stratification in order to optimize the most complex grounding systems engineering.

Its state-of-the-art system of active and passive filters provides it with high immunity to electric interferences, making it possible to obtain reliable measurements even in the presence of spurious voltages, such as the ones that can be found in some urban areas and near primary substations.

A 1,470 Hz internal generator injects alternated current on the soil through an auxiliary rod. The voltage generated over the earth resistance is measured by the apparatus, and the resistance value is evaluated. The test current is automatically regulated.It has abnormalities indications on the display which advises the operator when the generated current is not enough to carry out reliable measurements.Because of its wide range of measurement (from 0.01 Ω up to 20 kΩ), this equipment allows for reliable testing in all kinds of soils, including those that offer very high resistivity.

This earth tester is supplied with a rechargeable internal battery. The smart charger is microprocessor-controlled, and can be powered from a 12 V car battery (or a similar one).

It has a sturdy, easy and safe to carry cabinet, with IP65 protection level (closed lid). It is suitable to work under adverse geographical and environmental conditions, with extreme temperatures in cold or tropical regions and in high mountain areas, showing a reliable performance in the field.

Features

  • Digital and automatic
  • Earth resistance measurement
  • Ground resistivity (Wenner’s method)
  • Spurious voltage measurement
  • High spurious voltage rejection
  • Indication of anomalies in the current circuit
  • 0.01 Ω resolution
  • Up to 2 kΩ resistance range
  • Rechargeable NiMH battery
  • IP65 rated (with closed lid)
  • Graphic display (128 x 64 px)

Specifications

Specifications   MTD20kWr
Measurement ranges

Resistance: 0-20 kΩ

Tension: 0-200 V~.

Accuracy

Resistance measurements:

± (2% of the measured value ± 2 digits

Voltage measurements:

± (2% of the measured value ± 2 digits)

Reading resolution

0.01 Ω in the resistance measurement. 

0.1 V in the voltage measurement.

Output power and current The output power is less than 0.5 W, and the output current is limited to less than 10 mA (Peak to peak).
Battery charger AC adapter 12 V - 1 A
Tuesday, 28 July 2020 12:32 Written by

EM 4058

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.
Tuesday, 28 July 2020 13:05 Written by

TM25t

Testing of the power transmission towers grounding (G) quality poses a serious problem as they are all electrically interconnected by means of Ground Wires which act as lightning rods, protecting the lines from atmospheric discharges. Due to the existence of this connection, any attempt to measure a tower grounding (G) resistance using a conventional earth meter leads to wrong results as what is really being measured is all the shunt towers grounding (G) resistance (or, more precisely, its impedance at low frequency).

To make this kind of test feasible, which is of vital importance to ensure the transmission of the electrical power without interruptions, TENTECH TM25t grounding resistance meter for high frequency has been developed. 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.

Its operation is based on the use of a high-frequency measurement current (25 kHz), for which ground wire inductive impedance - taking into account a typical length span - is reasonably high, making it possible to reduce the effect of the adjacent towers under measurement. The equipment only measures the ground resistance of the surveyed tower, including its base. The extensive G systems, such as meshes, buried wires, metal pipes, etc, are measured only considering the closest section to the connection point, so that the measured value represents the performance against a pulse signal similar to an atmospheric discharge. Thus, values that better represent the system capacity to ground lightning currents than the ones obtained with low frequency conventional equipments, even when disconnecting the ground wire, are obtained. TM25t 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 compensation of inductive component
  • Automatic current injection
  • USB interface
  • Built-in memory and printer
  • Rechargeable LFP battery

Specifications

Specifications    TM25t
Measurement ranges

0 - 300 Ω

Accuracy

± 2.5 % of reading ± 1 digit

Operating Frequency 

25000Hz / 25kHz

Test Current 20mA automatic
Interface 

Modbus,USB or Bluetooth 

Battery charger 12 V - 2 A
Environment 

 -5°C to 50°C. (Operating)

-25°C to 70°C (Storage) 

Up to 95% RH (non condensing)

Weight 

4.9 Kg (Approx)

Dimension

345 x 272 x 159 mm

Wednesday, 12 August 2015 09:39 Written by

PCT200i

These new CT/PT testers are based on low frequency and variable frequency methods which lead to the great reduction in weight and high knee point test range. With one button click, all test items of the current transformer test set, such as excitation, winding resistance, polarity, phase error, ratio, etc, can be performed automatically.

PCT200i is specially designed for current transformer characteristic test.This CT analyzer can finish the measurement class CT and TYP class CT.The additional functions include ratio and angle differential tests (the measurement points in the GB standard),FS and inductance,steady-state parameters,peak error and transient parameters,etc. 

Features

  • Test CT according to IEC60044-1/6
  • Can test all types of CT, including bushing and GIS type CT
  • One test can get all CT parameters
  • Fast test time for excitation test
  • 10kV knee point test: 50s
  • 1kV knee point test: 15s
  • Ratio check up to 30,000:1
  • Knee point check up to 30,000V
  • Lightweight, Automatic and Compact CT/PT tester with large LCD display, onboard memory and computer interface
  • Principle based on variable frequency method which leads to high knee point test voltage range
  • Testing CT Ratio by voltage method, having fast response time, high precision and reliability
  • Embedded microprocessor digital platform without external PC, easy to operate and reduces test time
  • With one click following test can be performed such as excitation, winding resistance, polarity, phase error, ratio, etc
  • Name Plate Guessing facility
  • Ratio error and phase error list automatically shown when the rated current is 1% to 300%.
  • Inbuilt Demagnetization facility
  • PT test functions are also in-built
  • Test results can be saved to flash disk
  • Optional Excel format report generation
  • Large color LCD display
  • Weight : 14kg

Specifications

 

Parameters PCT200i
 Output Voltage range  0 to 120V
 Output Current range  0 to 5A rms (15A Peak)
Output Power 0.0001 to 500VA rms (1,500VA Peak)
Ratio Test range 30000:1 to 45000:5
Ratio Test Accuracy 0.1%
Max. Knee point voltage 30,000V
Burden test range 0.5 to 200Ω
Burden test accuracy ± 0.1% ± 1mΩ
Winding Resistance test range 0.05 to 200Ω
Winding Resistance test accuracy ± 0.1% ± 1mΩ
Display 8.4 inch, Colour LCD
Operating System Windows
Dimension (W x H x L) 470 x 200 x 245mm
Weight 14Kg
Saturday, 08 August 2015 11:43 Written by

BCT 1

Battery bank installations are important & essential part of various power, communication, information technology & industrial set-ups. 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 & conductance of individual cells of a battery string and to identify & eliminate weak battery cells and save battery string from further degradation.

SCOPE's BCT 1 is the comprehensive battery operated, portable, hand held Battery Conductance Tester suitable for all Lead Acid & Nickel Cadmium cells having cell voltage of 1.2V / 2V / 6V / 12V. This is all in one single unit that allows you to measure without taking the battery system OFF LINE.

Features

  • Smart, rugged and portable hand held 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-defined voltage is also available.
  • On line measurement- No need to disconnect cell / string from system.
  • Simultaneously tests cell terminal voltage, internal conductance and relative percentage capacity of the cell.
  • Built-in refrence value or selft defined value for comparison of test results with standart 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.

Specifications

Parameter Range Resolution Accuracy
 Conductance (Siemence)  100 to 19990Ω  0.01mΩ ±1.0% of reading ± 6 digit
 Voltage  0 to 16V 1mV ±0.2% of reading ± 6 digit
 Measuring Cells Per String Up to 254   
 Display Colour TFT touch screen LCD, 320 x 240 pixel, 3.5"   
 Memory 3000 test results   
Power Supply Li-ion battery   
Working Time > 5 hours continuous   
Environment 0°C to 50°C, up-to 95% RH (Non-condensing)   
Dimension (L x W x H) 210 mm x 110 mm x 60 mm
Weight 2 kg (including accessories)   

Accessories

Standard Acessories

  • Test Cables with Clamps : 1 pair
  • Battery Charger : 1
  • USB Pen Drive with Software : 1
  • USB Converter Cable : 1
  • Soft Carrying Case : 1
  • Instructions Manual : 1
  • Factory Test & calibration report : 1

Optional Acessories

  • Test Cables with Pin Type Probe : 1 pair
Tuesday, 28 July 2020 07:08 Written by

BLUe

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)

 

Tuesday, 28 July 2020 08:35 Written by

DC Trace

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

  • Touchscreen operation on colour graphical LCD
  • Online fault detection, no shut-down required
  • Signal Generator with adjustable output voltages from 24V to 1000V, suitable for different applications
  • Pinpoints high grounding resistance faults up to 1MΩ
  • Digital Signal Processing Technology for detecting grounding resistance and distributed capacitance
  • 10Hz output frequency on the signal receiver effectively avoids interference from the DC system
  • Frequency Spectrum Analysis for detection of surrounding frequencies
  • A signal Receiver with adjustable sensitivity at different locations of the circuit helps to locate the current leakage quickly
  • Direction (forward/reverse) indication for leakage current helps quick tracing of the faulty grounding path
  • Multiple analysis & indications for easy ground fault identification:
    • Direction of current flow
    • Phase angle difference
    • Comparison of signal strength
  • Detection of complex, multipoint and DC source mixing faults
  • Multiple receivers can work simultaneously with single generator

Specifications

Parameter DC Trace
Output Voltage 24 /48 /110 /220 /500 /1000V
Output Frequency 10Hz 
Current Sensitivity  ≥0.5mA
Display Generator 320 × 240 pixel, 3.5” colour LCD screen
Receiver  240 × 320  pixel, 3.5” colour TFT touch screen
Battery Life ≥4 Hrs
Battery Charging Input  230V / 110V AC, 50 / 60Hz
 Working Environment

0°C to 50°C, <95% RH (non-condensing)

Dimension

Generator 275 X 255 X 130 mm
Receiver 210 X 110 X 60 mm
Clamp Dual Range CT: 56mm (jaw opening),     Ø 65 x 30mm and Ø12 x 8mm
Weight Generator 2.5kg
Receiver 0.65kg
Clamp 0.6kg

Tuesday, 28 July 2020 10:04 Written by

BRT1

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)

Wednesday, 12 August 2015 12:29 Written by

SCALE TCV

SCOPE proudly intoduces new version of Calibration Standart SCALE TCV, specially designed to check calibration of SCOT and HISAC series instruments of SCOPE. Highly stable and precise signals of SCALE TCV are applied to SCOT and HISAC series instruments for calibration. SCALE TCV is calibrated from acceredited calibration laboratory and is provided with calibration certificate having traceability to national standards.

Features

  • Simple, lightweight, portable
  • Linear ramp signal generation for calibration of Trael and Velocity
  • Highly stable current source for calibration of Current channels
  • Contacts having precise close and open time for calibration of Timing channels
  • Calibration port for calibration os SCALE TCV from external Standard
  • Specially designed to calibrate SCOPE make SCOT and HISAC series products

Specifications

Technical Specifications

Sr. No.  Parameter Standard Value Sr. No.  Parameter Standard Value
1  Open Time (Main)  50 mSec 5  Current  1 A
2  Close Time (Main)  100 mSec 6  Ramp Voltage  4 V
3 Open Time (Auxiliary) 30 mSec 7 Open Ramp Time  75 mSec
4 Close Time (Auxiliary) 75 mSec 8 Close Ramp Time  150 mSec

General Specification

  • Weight - Approx 3 kg
  • Dimensions - 225mm x 150mm X 85 mm
  • Power supply - 230 V AC + 15%, 50 Hz + 10%
  • Environment - 0 to 50°, 95% RH (Non-condensing), typical testing labs.

Accessories

  • Soft carrying case
  • Test leads suitable for calibration of SCOT and HISAC series instruments.
  • Instruction manual
  • Calibration procedure manual
  • Calibration Cetificate from acceredited calibration laboratory having traceability to national standards
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