Earth
See Also: Ocean, Atmosphere, Ground
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Electrical Safety Test Equipment
Making a product “safe” requires an understanding of “hazards” that exist in each electrical product. Electrical shock is one of the four fundamental hazards. Because of that, it must be a part of any product electrical safety evaluation. Even though a product requires an electrical power source and uses electrical or electronic components, it should not present an electrical shock hazard to the user.Ground bond or earth continuity testing prevents electrical shock hazards. Similarly to a fault to earth, test instruments generate a high current. The standard requires that the resistance between protective earth and any conductive surface on the equipment does not exceed 0,1 Ohm. The test is performed by applying a DC current between the conductive surface and protective earth. By measuring the voltage drop, it calculates the resistance.RMO-E instruments are ideal for testing the protective bonding (grounding) of equipment following the standard IEC 61010-1. Applying current up to the value of 100 A and the ability to provide in the Contin menu (continuous operation) test current for the pre-set test duration (equal or exceeding 1 min) gives a user a possibility to easily check the protective bonding/grounding of the equipment. The full load voltage of 12 V assures proper measurement and accurate result. Finally, an instrument displays pass/fail classification according to user-preset parameters.
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4 Wire Earth Resistance & Resistivity Tester
4235 ER
Standard Electric Works Co., Ltd
● Microprocessor-controlled.● Earth resistivity (ρ) test.● Earth testing at 20Ω, 200Ω, 2kΩ.● Earth voltage measuring : 0-300V AC.● Automatic C spike check.● Automatic P spike check.● 2-Wire test, 3-Wire test, 4-Wire test.● LCM display.● Auto ranging.● Auto power OFF.● Data hold.● 200 measurement results can be saved in the memory and recalled on the display.● Interval between auxiliary earth spikes is 1.0~50.0m.
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Partial Discharge Detecting Detectors
Hangzhou Xihu Electronic Institute
Including pulse current PD detecto, high frequency PD detector, transient earth PD detector, ultra high frequency PD detector, and ultrasonic PD detector.
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C Series Current Output Module
The C Series Current Output Module features up to eight channels of simultaneous analog output. You can choose between enclosed and non-enclosed modules. Additionally, the C Series Current Output Module has built-in open-loop detection. This detection generates an interrupt in software when an open loop is detected, zeros outputs to ensure safety, and avoids driving actuators at system power-on. The C Series Current Output Module requires an external power supply and includes a channel-to-earth ground double isolation barrier for safety and noise immunity.The C Series Current Output Module includes the NI-DAQmx driver and configuration utility that simplify configuration and measurements. NI-DAQmx supports NI programming environments as well as Python, ANSI C, C#.NET, and MathWorks MATLAB® software.
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Barometers
These barometers can be found in the section to measure absolute pressure, differential pressure in respect to the atmosphere and negative pressure. There are barometers such as the DB2 digital barometers that have an internal memory for up to 750 Barometers to measure absolute pressure, differential pressure in respect to the atmosphere and negative pressure. readings and an analogue output of 0 to 1 volts. These barometers are perfect to measure atmospheric pressure, also called barometric pressure, is an expression for the weight of air (atmosphere) due to the earth''s gravitational pull. This pressure at sea level is 1013.25 mbars (milibars).
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NI-9262, 1 MS/s/ch Simultaneous, ±10 V, 6-Channel C Series Voltage Output Module
785503-01
1 MS/s/ch Simultaneous, ±10 V, 6-Channel C Series Voltage Output Module - The NI-9262 is a simultaneously updating analog output module. It features overvoltage protection, short-circuit protection, low crosstalk, fast slew rate, high relative accuracy, and NIST-traceable calibration. The NI-9262 module includes a channel-to-earth ground isolation barrier for safety and noise immunity.
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Serial AC Power Sequencer
90-200-001
Each power outlet can be programmed to switched on in sequence with a specific timing delay. The delay can be staggered to ensure that order dependent systems - like PXI - can be switched on and off in an orderly way with just one operation. A staggered start up also limits the inrush current associated with the powering up of equipment, including earth current inrush, placing less stress on cabling and leakage breakers. Power on or off instructions can be initiated from either the front panel switch or via the serial interface.
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Digital RCD Tester
8012 EL
Standard Electric Works Co., Ltd
● Microprocessor-controlled.● Extra large LCD(78 × 67mm).● Very low consumption.● 50Hz and 60Hz operation.● Menu-driven.● Accurate digital readout of disconnection time.● Over temperature protection.● Over voltage protection.● Fuse protection.● Zero crossing circuitry permit testing at 0° or 180°.● Auto power off.● Auto off and off override.● Wiring polarity indicator.● Measure voltage between Line and Earth before testing.●Frequency measurement indication.
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Current Protection Relay
The main earth fault protection relays in distributions systems, power stations & large manufacturing / processing plants can fail to detect a high impedance break down to earth causing hazard to human life & potential damage to plant & equipment. In these & other situations demanding extra sensitive earth fault protection, using solid state techniques, can be applied to detect earth currents down to 0.5% of the CT nominal current.
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Battery and Alternator Analyser for 12V DC Systems
1176
Checks battery charge level and alternator output level. 880mm of insulated cable with test probe and earth (crocodile) clip. For 12V DC systems only. Display packed.Warning: For testing DC circuits on vehicles within the voltage range only. Not suitable for testing mains supply AC circuits.
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Solar Array Simulator
G5.SAS
The G5.SAS series are unidirectional sources. It was developed specifically for testing inverters and simulating solar arrays and is suitable for use in laboratories and on test benches. The modular and finely graded G5.SAS series is characterized by highly dynamic response times and a wide current-voltage range with an auto-ranging factor 3. The power supplies feature especially low capacitance values in the output filter stage and switchable earth leakage resistors for adaptation to the insulation measurement of the DUT.
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NI-9216, 8-Channel, 400 S/s Aggregate, 0 Ω to 400 Ω, PT100 RTD C Series Temperature Input Module
783863-02
8-Channel, 400 S/s Aggregate, 0 Ω to 400 Ω, PT100 RTD C Series Temperature Input Module - The NI‑9216 is a resistance temperature detector (RTD) input module. You can configure the NI‑9216 for two sample rate modes: high sample rate or high resolution. The NI‑9216 is compatible with 3‑ and 4‑wire RTD measurements, and it automatically detects the type of RTD (3-‑or 4‑wire) connected to the channel and configures each channel for the appropriate mode. The module provides per channel current excitation. The NI‑9216 features calibration and includes a channel‑to‑earth ground double isolation barrier for safety, noise immunity, and a high common-mode voltage range.
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Satellite Simulators
Tampa Microwave''s satellite simulators provide a compact easy to use training and evaluation tool for satellite earth terminals. We provide a variety of models with different combinations of frequency bands, transmit/receive strength, atmospheric effects and form factors. Contact us with your requirements and we will recommend a cost effective solution.
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Digital Earth Tester
Cambridge Instruments & Engineering Co.
'CIE' Digital Earth Resistance Tester is designed to measure the resistance if earth used in power circuit, Telecommunications, Railway Electrification, Domestic and Industrial electrical installations. The tester measures directly the resistance of the earth and also measure the ground resistivity.
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NI-9205, ±10 V, 250 kS/s, 16-Bit, 32-Channel C Series Voltage Input Module
780173-01
±10 V, 250 kS/s, 16-Bit, 32-Channel C Series Voltage Input Module - The NI‑9205 performs single-ended or differential analog inputs, with four programmable input ranges for each. It is an effective combination of channel count and speed at a low price for an economical multifunction system. You can choose from four programmable input ranges. To protect against signal transients, the NI‑9205 includes up to 60 V of overvoltage protection between input channels and common. In addition, the NI‑9205 also includes a channel-to-earth ground double isolation barrier for safety, noise immunity, and high common-mode voltage range. It is rated for 1,000 Vrms transient overvoltage protection.
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Single-functional testers
3110
The MI 3110 EurotestIM is a perfect tool for testing of permanent integrated or portable Low Voltage Electrical Installa-tions supplied by Generator or Transformer and protected by an IT earthing system. Designed for simple but efficient safety testing of Integrated IT Earthing System powered with LV Generator or Transformer! With a single, pre-programmed AUTO SEQUENCE® with sub-tests and adjustable limits it is possible to perform all the necessary verifications of safety limits of a specific LV IT installation.
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Protector Conductor Test / Ground Continuity Test / Ground Bond Test
Testing the protective conductor is indispensable for assemblies, devices and systems of protection class I because it reduces the risk of life-threatening electrical accidents.The test checks whether the protective earth (PE) fulfils the criteria specified in the standards and can correctly discharge the current occurring in case of a fault.The ground continuity test checks whether the protective earth conductor is connected continuously to all metallic enclosure parts that can be touched by the user. The test can be carried out with low currents and voltages (simple continuity test).
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MHG Solar Simulation
Atlas Material Testing Solutions
Filtered MHG lighting is a mature technology used since the 80’s for larger solar simulators inside environmental test chambers. MHG lamps are filled with a mixture of mercury, halides and rare earth elements which vaporize during ignition, generating a plasma. After a few minutes, the plasma reaches thermal equilibrium and emits a quasi-continuous spectrum (when properly filtered) similar to global solar radiation.
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Mobile Testing
Mobile devices are inarguably the most disruptive technology invention in recent times and have had an impact on human lives like no other. With a number of mobile devices surpassing the number of human population on earth, making your application mobile-ready is key to keeping today’s digital consumers happy. Across enterprises of all sizes, mobile apps have fuelled growth in the business operations and customer services. However, with the variety of platforms, devices and networks, there is significant infrastructure required for mobile application testing. The testing either is not exhaustive or very costly due to the sub-optimal approach used for testing.
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Earth Resistance Tester
M71
M71 has been developed to measure earth resistance with 2 wires and 3 wires by voltammetric method in compliance with standard IEC/EN61557-1.
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NI-9436 , 120 VDC to 240 VDC/120 VAC to 240 VAC, 8 Channel (Sinking/Sourcing Input), 20 ms C Series Digital Module
784338-01
120 VDC to 240 VDC/120 VAC to 240 VAC, 8 Channel (Sinking/Sourcing Input), 20 ms C Series Digital Module - The NI‑9436 works with industrial, high-voltage logic levels and signals to connect directly to a wide array of industrial devices such as fans and motors. Each channel accepts signals from 120 VDC to 240 VDC and 120 VAC to 240 VAC; features transient overvoltage protection between the input channels and earth ground; channel to channel and channel to earth isolation up to 250 Vrms; and has an LED that indicates the status of each channel.
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Earth Leakage Relay
Nippen Electrical Instruments Co.
NIPPEN's Earth Resistance Testers are used for measuring earth electrode resistance, soil resistance, earth continuity, neutral and earth loop resistance, resistance of various components etc.They are used in Railways, Defence, Utilities, Power Plants, Geological Surveys and other Industries.Direct reading type models SET/DET/TET provide direct readings of resistance on moving coil type meters, having a linear scale, 70mm long knife edge pointer and an external zero adjustment.
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Multifunction Electrical Installations Meter
MPI-525
Possible measurementsShort-circuit loop measurement:*impedance measurement with 23 A current (44 A phase-to-phase) - short-circuit resistor R=10,*measurement range: 95...440 V, frequency 45...65 Hz,Short-circuit loop measurement with resolution 0,01, in distribution network without tiggering RCD (In30 mA):*automatic calculation of short-circuit, detection of phase voltage and phase-to-phase voltage,*additional UNI-Schuko plug for automatic measurement, AGT adapter for 3 phase network measurement.Testing of general and selective RCD with the rated differential current of 10,30,100,300,500 and 1000 mA. (Type AC, A and B).Measurement of insulation resistance:*with test voltage 250 V, 500 V, 1000 V, 2500 V,*measurement range up to 10G,*automatic discharging after measurement,*automatic measurement of all resistences in 3,4,5-wire cables using optional adapter AUTO-ISO,*acoustic signals in 5 sec intervals for insulation resistance characteristic,*elapsing T1, T2, T3 times (0...600 s) form measurement of absorption coefficients (DAR, PI or Ab1, Ab2)*safety measurement - protection against overvoltage.Measurement of earthing resistance.Bi-directional testing of PE wire continuity using 200 mA current.*Autocalibration of test leads.
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Intelligent Cable Fault Locator
TM800
TM800 Cable Fault Locator is a portable field instrument working on TDR and bridge methods, adopting advanced micro-electronics technology. It is designed to locate accurate fault points in such cables as telecommunication leadsheathed cable, plastic cable or user’s lead covered wire, while the faults include break, mix, earthing, defective insulation, or poor connecting. It is and ideal function-stable instrument for the field operator to improve work efficiency, in addition, it can also be used for circuitry project checking electric property testing of the cable.
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PAT and Installation Verification Unit
PowerCheck 1557
The PowerCheck 1557 is a comprehensive PAT and installation verification checkbox. It carries out ongoing performance checks to ensure accurate measurement between calibration intervals. Fully tests Earth Continuity, Insulation Resistance, RCD Trip Time, RCD Trip Current, Loop, PE Conductor Current, Touch Current and Flash tests.
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Insulation & Earth Resistance Testers
KV Hipot Power Test Equipment Co.,Ltd
resistance tester is used to measure the resistance of the earth is called Earth Resistance Tester. All the equipment of the system is grounded through the earth electrode. Unhindered earthing protects electrical equipment and personnel from the fault current.
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Multifunction Meter for Electrical Installations
AMPI-530
Measurement of short-circuit loop ; Testing of differential, general and selective protections for differential current ; Measurement of insulation resistance ; Up to 10GΩ ; Voltages: 50 V, 100 V, 250 V, 500 V, 1000 V ; Measurement of earth resistance ; Bi-directional continuity test on PE cables, phase sequence ; Measurement and recording of voltage, frequency, alternating current, cosϕ, power, harmonics and THD
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Installation Safety Testers
PeakTech Prüf- und Messtechnik GmbH
This innovative combination meter for testing electrical installations according to VDE 0100 convinces by its technical performance in the high-end range.With the large 3.5 "TFT color display all important safety checks as the RCD-, Voltage-, Loop-, Low-Ohm, Earth resistance and Insulation tests for annual safety-checks and newly installed systems can safely be carried out by the responsible electrical engineer.Since this new development was designed only according to the latest standards, the required measuring values can be even more convenient stored with an App (iOS / Android) via Bluetooth on the mobile phone, saved to an SD card or, when work is completed, from the internal data memory via USB connection to a PC.
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NI-9215, ±10 V, 100 kS/s/ch, 16-Bit, Simultaneous Input, 4-Channel C Series Voltage Input Module
779011-01
±10 V, 100 kS/s/ch, 16-Bit, Simultaneous Input, 4-Channel C Series Voltage Input Module - The NI‑9215 performs differential analog input. The module contains NIST-traceable calibration, a channel‑to‑earth ground double isolation barrier for safety and noise immunity, and high common-mode voltage range. It is also offered in two connectivity variants: 10‑position screw terminal or BNC.
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Electronic Power Testers
Axi'An Beicheng Electronics Co., LTD.
Electronic Power Testers by RuoShui; HART process calibrators, process calibrators, digital earth resistance tester, insulation resistance tester, SMD resistor, digital capacitance inductance meter, LCR meters, surface resistance meter, and more
