Electrical Tool (UKAS) Calibration

3.5 Digit Multimeter

A multimeter or a multitester is an electronic measuring instrument that performs several measurement functions in one unit. A typical multimeter can be used to measure voltage, current, and resistance and even to check for conductivity.

A 3.5-digit display is actually four segments, one-half digit, and 3 full digits. Displaying maximum capability it would read 1999. If we wanted to display 30kV on a 3.5-digit meter we would have to “throw out” the leading half digit as we can’t make use of it because it’s only a “1”. We are limited to using the three full digits, so the display would be 300.

IF YOU ARE NOT SURE WHETHER YOUR MULTIMETER IS A 3.5-DIGIT OR A 4.5-DIGIT, PLEASE CONTACT US IN THE FORM BELOW

3.5 Digit Multimeter Calibration Price: Price on Request

4.5 Digit Multimeter

A multimeter or a multitester is an electronic measuring instrument that performs several measurement functions in one unit. A typical multimeter can be used to measure voltage, current, and resistance and even to check for conductivity.

A 4.5-digit display is actually five segments, one-half digit, and 4 full digits. Displaying maximum capability it would read 19999. If we wanted to display 30kV on a 4.5-digit meter we would have to “throw out” the leading half digit as we can’t make use of it because it’s only a “1”. We are limited to using the four full digits so the display would be 3000.

Clamp Meter (Basic)

A basic clamp meter is a clothespin-shaped instrument that can be clamped around a live wire in order to measure the current it’s carrying. The typical multimeter has to be inserted in series with the circuit under measurement, requiring that it be cut first.

By contrast, clamp meters can measure the current flowing in the wire around which they’ve been clamped by detecting the magnetic field generated by the current. The clamp is classed as a basic clamp meter due to the device only being able to measure current. 

IF YOU ARE NOT SURE WHETHER YOUR CLAMP METER IS A BASIC, MULTI-FUNCTIONAL, OR MULTIMETER, PLEASE CONTACT US IN THE FORM BELOW

Clamp Meter (Basic) Calibration Price: Price on Request

Clamp Meter (Multi-Functional)

A multi-functional clamp meter measures a wide range of electrical parameters for troubleshooting power disturbances in single- and three-phase electrical loads. They generally come with a colour display to see waveforms and trends, a low-pass filter to remove high-frequency noise, and a high EMC immunity design, it is ideal for measurements on switching loads such as variable speed drives, electronic lighting, and UPS systems.

IF YOU ARE NOT SURE WHETHER YOUR CLAMP METER IS A BASIC, MULTI-FUNCTIONAL, OR MULTIMETER, PLEASE CONTACT US IN THE FORM BELOW

Clamp Meter (Multi-Functional) Calibration Price: Price on Request

Clamp Meter (Multimeter)

A clamp meter is an electrical testing tool that is used to measure the current in a wire without having to make direct contact with the wire. This type of meter is very useful in situations where it would be difficult or dangerous to access the wire directly.

A multimeter clamp meter differs from a basic clamp meter because it measures other electrical parameters, such as voltage and resistance as well as the standard current.

IF YOU ARE NOT SURE WHETHER YOUR CLAMP METER IS A BASIC, MULTI-FUNCTIONAL, OR MULTIMETER, PLEASE CONTACT US IN THE FORM BELOW

Clamp Meter (Multimeter) Calibration Price: Price on Request

Insulation Tester (Up to 1 KVA)

Insulation testers are electrical measurement test tools used for preventative or predictive maintenance programs. Also known as megohmmeters they are designed to identify potential equipment failures before they occur. Insulation resistance testers are perfect for testing a wide range of high-voltage equipment including switchgear, motors, generators, and cables.

Testing the integrity of insulation requires measuring its resistance to current flow across it. Testers use high voltage low current DC charge to measure the resistance. A high level of resistance means that very little current is escaping through the insulation. Conversely, a low level of resistance indicates a significant amount of current may be leaking through and along the insulation.

IF YOU ARE NOT SURE WHETHER YOUR INSULATION TESTER IS A 1 KVA, 5 KVA OR MULTI-FUNCTIONAL PLEASE CONTACT US IN THE FORM BELOW 

Insulation Tester (Up to 1 KVA) Calibration Price: Price on Request

Insulation Tester (Up to 5 KVA)

5 KVA insulation testers perform the same function as the 1 KVA, however, the 5 KVA insulation tester can test up to 5000 volts. They also come with more features such as automatic calculation of dielectric absorption (DAR) and polarization index (PI), a guard system that eliminates the effect of surface leakage current on high-resistance measurements & selectable test voltages in 50 V steps from 250 V to 1000 V, and 100 V steps above 1000 V.

IF YOU ARE NOT SURE WHETHER YOUR INSULATION TESTER IS A 1 KVA, 5 KVA, OR MULTI-FUNCTIONAL PLEASE CONTACT US IN THE FORM BELOW 

Insulation Tester (Up to 5 KVA) Calibration Price: Price on Request

Multifunctional Insulation Tester

A multifunctional insulation tester offers all of the benefits of having an insulation tester that tests up to 1 KVA as well as the additional functionality of being able to test current, voltage & resistance. All of this makes these tools a all in one convenient tool to use for any job.  

IF YOU ARE NOT SURE WHETHER YOUR INSULATION TESTER IS A 1 KVA, 5 KVA, OR MULTI-FUNCTIONAL PLEASE CONTACT US IN THE FORM BELOW 

Multifunctional Insulation Tester Calibration Price: Price on Request

Loop Tester

The main reason for earth loop impedance testing – which is often simply called loop testing – is to verify that, if a fault occurs in an electrical installation, sufficient current will flow to operate the fuse or circuit breaker protecting the faulty circuit within a predetermined time. The objective is to make sure that the circuit is disconnected fast enough to prevent overheating and possibly a fire.

A Loop Tester is a quick, convenient, and highly specific method of evaluating an electrical circuit for its ability to engage protective devices (circuit breakers, fuses, and Ground-fault circuit interrupters).

Loop Tester Calibration Price: Price on Request

Surface Resistivity Tester

Surface resistivity refers to the resistance experienced by the leakage of current along the surface of the coat/insulating material. It also can be defined as the electrical resistance that exists between two parallel electrodes in contact through the surface. The electrodes must be separated by a distance equal to the contact length of said electrodes. The four ends of the electrodes form a square; thus, the resistivity is reported in ohms and sometimes ohms per square.

The surface resistivity tests the resistivity of surfaces, the higher the surface resistivity, the lower the conduction of the material because there will be low leakage current.

Surface Resistivity Tester Calibration Price: Price on Request

Low Resistance Ohm Meter e.g. Megger BT51

A micro ohm meter, also known as a digital low resistance ohmmeter (DLRO), measures low resistance values in micro-ohms at specified currents. Precision ohmmeters that use the four-wire, Kelvin probe system can eliminate contact resistance and reduce errors caused by lead resistance. Instruments for low resistance measurement are key to field and laboratory applications requiring high accuracy.

Low Resistance Ohm Meter Calibration Price: Price on Request

Time Domain Reflectometer e.g. Megger TDR1000

A time domain reflectometry (TDR) method is the most established and widely used measuring method for the determination of the total length of a cable, the location of low resistive cable faults, the location of cable interruptions & the location of joints along the cable

A TDR sends a low voltage pulse into the cable under test and at any impedance change within the cable, a reflection will be seen. The TDR measures the time between the release and return of the low-voltage pulse from any reflections. By measuring the time and knowing the propagation velocity of the pulse, the distance to the reflection can be calculated. This helps to give a user information on the type of impedance change or failure that could be present in the cable.

Time Domain Reflectometer Calibration Price: Price on Request

RCD Tester

A residual-current device (RCD) tester, tests residual-current circuit breaker (RCCB) or ground fault circuit interrupter (GFCI)[a] is an electrical safety device that quickly breaks an electrical circuit with leakage current to ground. It is to protect equipment and reduce the risk of serious harm from an ongoing electric shock.

They contain a current source that is able to generate a current of any waveform and polarity between neutral and earth. Which allows it to test the residual current of a circuit.

RCD Tester Calibration Price: Price on Request

LCR Tester

An LCR meter is a type of electronic instrument or device that measures the resistance, inductance, and resistance of a conductor. The use of this device is principally in troubleshooting and maintenance work, such as checking for broken wires and shorts. An LCR meter can determine if a capacitor is defective or not. An LCR meter is a combination of three separate meters in one single unit, The L, the C, and the R components are not independent of each other but rather work together to measure inductance, capacitance, and resistance values. These values apply a voltage to the capacitor or inductor to calculate and estimate resistance using a current or measure both simultaneously.

LCR Tester Calibration Price: Price on Request

Portable Appliance Tester

A PAT tester, or portable appliance tester, is an electronic device that is used to check electrical devices for faults in a wide range of working environments. They will provide a pass or fail for the appliance you are testing immediately, so you know it's safe to use. A lot of electrical safety issues can and are detected by visually examining the appliances, but some will only be found by PAT testing. By testing your portable devices by visual inspection and with a tester designed for the purpose, the risk of potential safety problems such as shock and appliance failure is reduced. PAT testers can be calibrated to ensure maximum safety, as they can deviate from the manufacturer's settings. Resulting in inaccurate readings could be the difference between a pass and failure.

Portable Appliance Tester Calibration Price: Price on Request

Watt Meter

The wattmeter is an instrument for measuring the electric active power (or the average of the rate of flow of electrical energy) in watts of any given circuit. Electromagnetic wattmeters are used for the measurement of utility frequency and audio frequency power; other types are required for radio frequency measurements. Digital wattmeters are the most common, they measure current and voltage electronically thousands of times a second, multiplying the results in a computer chip to determine watts. The computer can also perform statistics such as peak, average, low watts, and kilowatt-hours consumed.

Watt Meter Calibration Price: Price on Request

VSWR Meter (Antenna Test Set)

For a radio (transmitter or receiver) to deliver power to an antenna, the impedance of the radio and transmission line must be well-matched to the antenna's impedance. The parameter VSWR is a measure that numerically describes how well the antenna is impedance matched to the radio or transmission line it is connected to. The VSWR meter (antenna test set) tests these values to give the user an accurate reading of the antenna's impendence. VSWR stands for Voltage Standing Wave Ratio and is also referred to as Standing Wave Ratio (SWR). VSWR is a function of the reflection coefficient, which describes the power reflected from the antenna.

VSWR Meter Calibration Price: Price on Request