Air Equipments And Spares

• In addition to the facility for precision measurement, test leads for simplified two wire measuring system also supplied as standard accessories.
(unit can be hung from the neck for simplified measurement)
• The latest circuit design permits the instrument to operate with the minimum of influence from earth voltage and earth resistance of auxiliary earth spikes.
• Dust and drip proof. (designed to IEC 60529 IP54)
• Earth resistance value can be read directly from the scale.
• Designed to meet IEC 61010-1 safety standard.
• Capable of measuring earth voltage.
• Small and lightweight. Shock resistant new case material.
• 2mA measuring current permits earth resistance tests without tripping earth leakage current breakers in the circuit under test.

A 3-terminal digital earth resistance tester is a specialized instrument used to measure the resistance of grounding systems to ensure effective and safe grounding. This type of tester provides accurate readings by using three electrodes: two for injecting current into the ground and one for measuring the potential difference.
**Key Features:**
- **Three-Terminal Configuration**: Utilizes three stakes—one for current injection, one for potential measurement, and one for the earth under test. This setup helps to accurately measure earth resistance by minimizing errors from soil resistance.- **Digital Display**: Provides clear, easy-to-read digital measurements of earth resistance in ohms, facilitating straightforward interpretation and reducing human error.- **Accuracy and Precision**: Offers high precision in readings, essential for assessing the effectiveness of grounding systems in various applications.- **Safety Features**: Often includes features such as automatic range selection and overload protection to ensure safe and reliable measurements.
These testers are crucial in electrical and safety engineering, helping to verify that grounding systems are properly installed and functioning to prevent electrical hazards and ensure system safety.

Features
1. Explosion-proof products, can be used in the corresponding e nvironment, the shell is made of anti-stat i c engineering plastic and safer.
2. Ex-mark: Exia II BT3Ga, Explosion-proof qualified No.: CE13.2263
3. When measuring the loop earth system, no need to disconnect the grounding down leads, no need w it h auxiliary electrode.
4. Clamp Earth Resistance Tester can measure the ground fault which can’t be measured by traditional method, and apply in the situation where traditional methods could not measure.
5. Audible and visible alarm, data memory, data hold functions.Clamp Size 6 5mmX32mm
Clamp Opening Size 32mm
Ex-Mark Ex ia II BT 3Ga
LCD Screen 4-bit LCD digital display, 47mm(L) × 28.5mm(W)
Data Storage 99 unit
Audio-light alarm "beep--beep--beep --" alarm sound. Press “AL” key to turn on and off
Alarm Critical Value Setting Range Resistance:1-199 Ω
Working Temp -20℃-55℃；10％RH-90％RH
Protection Level Double insulation
Structure Clamp CT
Shift Automatic shift
External Magnetic Electric field ＜40A/m；＜1V/m
Single Measurement Time 0.5 s
Resistance Measurement Frequency ＞1KHz
Power 6VDC (4 PCS alkaline dry battery)
Dimension Approx. 285mm(L)x85mm(W)x56 mm(H)
Weight Approx. 1160gm.
Accessories Test Ring, Batteries, User Manual & Carrying case.

1. Explosion-proof products, can be used in the corresponding e nvironment, the shell is made of anti-static engineering plastic and safer. 2. Ex-mark: Exia II BT3Ga, Explosion-proof qualified No.: CE13.2263 3. When measuring the loop earth system, no need to disconnect the grounding down leads, no need w it h auxiliary electrode. 4. Clamp Earth Resistance Tester can measure the ground fault which can’t be measured by traditional method, and apply in the situation where traditional methods could not measure. 5. Audible and visible alarm, data memory, data hold functions.

• Equipped to measure both AC and DC current with transformer jaws of large diameter.
• Can measure AC and DC currents up to 2000A.
• Output terminal for connection to recorders.

• High test current up to 80mA yielding resolution of 0.001Ω on 2Ω range.
• Advanced Filtering method (based on FFT Fast Fourier Transform) reduces noise interference for obtaining stable measurements.
• Automatic and Manual selection of the Test Current Frequency in four bands (94/105/111/128Hz). In Automatic mode, KEW 4106 will select the most suitable Frequency.
• Several sub-results can be shown on the display: Resistance of the Auxiliary Earth Spikes, Frequency of Test Current, Voltage and Frequency of Interference (noise), Residual Resistance Rk, etc.
• Warning for excessive noise and high Auxiliary Earth Spikes resistance.
• Large Graphic Display with backlight for readings in poorly illuminated areas.
• Up to 800 measurement results can be saved in the memory and recalled on the display.
• The stored results can be transferred to a PC using the "KEW Report" software and a USB adaptor (Model 8212-USB) which are included.
• Robust design with IP54 protection.

Features

• Auto-ranging microprocessor controlled.
• Earth Resistivity (ρ) test.
• Earth testing range 20 Ω, 200 Ω, 2000Ω
• Earth voltage measuring : 0-300V AC.
• Automatic C spike check.
• Automatic P spike check.
• 2-wire test, 3-wire test, 4-wire test.
• 2 Lines x 16 characters large LCD.(LCM Display)
• Auto Power Off.
• Data Hold.
• Memory save feature (upto 200 measurements).
• Interval between auxiliary earth spikes is 1.0~50.0m.

Features: 

• Auto-ranging microprocessor controlled.
• Earth testing range 2Ω, 20Ω, 200Ω, 2kΩ.
• Earth voltage measuring : 0-300V AC.
• Automatic C spike check.
• Automatic P spike check.
• LCM display.
• Auto power OFF.
• Data Hold.
• Robust, Compact and easy to carry.
• 2-wire test, 3-wire test, 4-wire test.

KM-1620 / KM 1720 single-jaw type Earth Resistance Tester is widely used for earth resistance testing of the equipments in the field of power, telecommunication, as well as the other electrical equipments. It features easy operation, high-accuracy and good adaptation of testing environment.

Etcr Clamp Earth Resistance Tester is widely applied in ground resistance measurement, loop resistance measurement in fields such as electric power, telecommunications, meteorology, oil field, architecture and industrial electrical equipment, etc. When measuring ground system with loop, there is no need to disconnect the ground wire without auxiliary electrode, which means safer and faster. KUSAM-MECO Clamp Earth Resistance Tester can measure the ground fault which can not be measured by traditional method, can apply in the occasion where traditional methods are unworkable; KUSAM-MECO Clamp Earth Resistance Tester measures the integrated value of ground resistance and resistance lead. Tester can measure the leakage current of ground wire.

Leakage Clamp Meter
• Least affected by external stray magnetic field.
• 20mA AC max. in proximity to a 15mm-dia conductor carrying 100A AC
• Frequency Selector Switch to eliminate the effect of harmonics.
• Resolution 0.1mA.
Inc. Accessories: 9097 Carrying Case, R03 × 2, Instruction Manual

• The latest circuit design permits the instrument to operate with the minimum of influence from earth voltage and earth resistance of auxiliary earth spikes.
• Dust and drip proof. (designed to IEC 60529 IP54)
• Earth resistance value can be read directly from the scale.
• Designed to meet IEC 61010-1 safety standard.
• Capable of measuring earth voltage.
• Small and lightweight. Shock resistant new case material.
• 2mA measuring current permits earth resistance tests without tripping earth leakage current breakers in the circuit under test.

• 200/2000Ω (2 ranges): auto-ranging.
• Warning buzzer triggered at 100Ω or less.
• LED lights up when a large earth voltage is detected.
• Live circuit warning when 30V or higher voltage is detected. (KEW 4300 detects voltage even when measuring resistances.)
• LED light for illuminating measurement points.
(It turns on/off automatically in relation to the ambient brightness.)
• Small test current (max 2mA) not triggering RCD.

Technical Specifications :
• Function : Battery internal resistance measurement, battery voltage measurement, temperature measurement
• Accuracy guaranteed temperature and humidity : 23 °C ±5 °C , below 75%rh
• Power supply DC 3.7V lithium battery
• Resistance resolution 1 u Ω
• Voltage resolution 1 mV
• Temperature resolution 0.1 °C
• Measuring range
Internal resistance measurement:0.000mΩ~3.100 Ω ???4 ranges configuration???
Voltage measurement: 0.000V~±71.00V (consisting of 2 ranges)
Temperature measurement: -10.0???~60.0??? (single range configuration???
• Maximum input voltage DC 70V (between + measurement terminal and-measurement terminal), no AC input
Measurement method : Internal resistance measurement: 1KHz AC 4-terminal test method, open-circuit terminal voltage 3V max Measuring current: 2.0mA~200mA (different measuring currents in different ranges) Temperature measurement: NTC temperature sensor (10KΩ at 26°C) A/D conversion method: successive approximation type Display update frequency: 5 times/second
• Response time 200ms
• Measure time About 2 seconds
• LCD Size 70.1mm×52.6mm /3.5 inches (320*240 resolution 16-bit true color screen)
• Instrument size : 190mm×121mm×51mm
• USB interface : With a USB interface, the stored data can be uploaded to the computer, saved and printed
• Bluetooth connection : Yes
• Hold and store function : Manual retention and storage, automatic retention and storage
• Measurement judgment function : Pre-set PASS, WARNING, FAIL judgment thresholds
• Battery voltage The battery level is displayed in 5 bars, reminding to charge in time when the battery voltage is low
• Automatic shut-down No operation when power on, it will power off automatically after about 15 minutes (can be turned off in the settings)
• Power consumption 300mA MIN / 500mA MAX
• Weight Meter 480g (With battery)
• Working temperature and humidity -10 40 below 80%RH
• Storage temperature and humidity -20 60 below 70%RH
• Insulation resistance Above 20MΩ (500V between circuit and case)
Withstand voltage AC 3700V/RMS (between circuit and case)
• External magnetic field :  40A/m
• External electric field :  1V/m
• Suitable for safety regulations: IEC 61010
• Accessories : Test leads, USB cable, Charger, Software CD, Instruction Manuals, Instruments box