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Electrical Measuring & Monitoring Instruments
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1060630
Touch panel with 25.9 cm / 10.2" TFT-display (analog resistive (polyester)), 16.7 million colors, Arm® Cortex®-A9, 1 GHz, 1x USB Host 2.0, 1 x Ethernet (10/100 Mbps), RJ45, Yocto/Linux and user software: Otter Browser. (bus system: without)
customer-131
STOCK: 219
Fast shipping1050222
Ex i temperature transducer: converts signals from resistance temperature detectors installed in the Ex area and transmits a 0/4 - 20 mA signal to a load in the safe area. Freely programmable. 3-way isolation, SIL, screw connection, standard configuration
customer-131
STOCK: 205
Fast shipping1060549
Touch panel with 10,92 cm / 4,3"-TFT-display (analog resistive (polyester)), 480 x 272 pixel(s) (WQVGA), 16.7 million colors, Arm® Cortex®-A9, 1 GHz, 1x USB Host 2.0, 1 x Ethernet (10/100 Mbps), RJ45, Yocto/Linux and user software: Otter Browser. (bus sys
customer-131
STOCK: 201
Fast shipping2856126
Base element for protective plug PT with protective circuit for a 2-core floating signal circuit. Integrated gas arrester as coarse protection between GND and PE. Mounting on NS 35/7.5 und NS 35/15, housing width: 17.5 mm.
customer-131
STOCK: 197
Fast shipping2902851
Configurable temperature transducer for the connection of thermocouples. Can be configured via DIP switches or, with extended functionality, using the software. Screw connection, standard configuration.
customer-131
STOCK: 196
Fast shipping2864273
MCR temperature transducer for Pt 100 temperature sensors, configured via DIP switch, with screw connection, not pre-configured
customer-131
Quick Quote
2864176
4-way signal duplicator for electrical isolation and duplication of analog signals with screw connection, standard configuration
customer-131
Quick Quote
2839208
Base element for protective plug PT with protective circuit for two 2-wire floating signal circuit, bridge between the connections 3-4 (GND) and 9-10, for mounting on NS 35/7.5 and NS 35/15, housing width: 17.5 mm
customer-131
STOCK: 175
Fast shipping2902058
Universally configurable frequency transducer for converting frequency and PWM signals into standard signals. Sensor voltages greater than 8.2 V DC are possible in combination with MINI MCR-2-SPS-PT 1033201. Push-in connection technology.
customer-131
STOCK: 161
Fast shipping2905028
Universally configurable 4-way signal duplicator, with plug-in connection technology for the electrical isolation and duplication of analog signals. Configurable via DIP switch or software. Push-in connection technology, standard configuration.
customer-131
Quick Quote
2839224
Base element for protective plug PT with protective circuit for two 2-wire floating signal circuit, gas-filled surge arrester between the connections 3-4 (GND) and 9-10, for mounting on NS 35/7.5 and NS 35/15, housing width: 17.5 mm
customer-131
STOCK: 153
Fast shipping1109673
Medium surge protection with integrated status indicator for a 2-wire floating signal circuit.
customer-131
STOCK: 152
Fast shipping2906239
MACX MCR voltage transducer, for AC voltages from 0 V ... 20 V AC to 0 ... 660 V AC, output signal: 0 V ... 10 V/0(4) ... 20 mA
customer-131
STOCK: 139
Fast shipping2902061
Output loop-powered 2-way isolator with plug-in connection technology for the electrical isolation of unipolar and bipolar analog signals. Input configurable via DIP switch. Screw connection technology, standard configuration.
customer-131
STOCK: 128
Fast shipping2804704
Surge protection in one-piece 6.2 mm wide DIN rail module for four floating signal wires.
customer-131
STOCK: 125
Fast shipping2839282
Base element for protective plug PT, for mounting on NS 35/7.5 and NS 35/15, housing width: 17.5 mm
customer-131
STOCK: 119
Fast shipping1003824
USB HART modem cable for communication between a PC and HART devices, cable length: 1m.
customer-131
STOCK: 116
Fast shipping2906840
Medium surge protection with integrated status indicator for a signal wire with grounded reference potential.
customer-131
STOCK: 112
Fast shipping2839185
Protective plug PT with protective circuit for higher signal voltages, 2-channel, visual error warning. Nominal voltage: 120 V AC
customer-131
STOCK: 105
Fast shipping2906834
Fine surge protection with integrated status indicator for a 2-wire floating signal circuit.
customer-131
STOCK: 105
Fast shipping
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Electrical Measuring & Monitoring Instruments
General Guide & Overview
Electrical measuring instruments play a crucial role in ensuring the safety and efficiency of electrical systems. From measuring voltage and current to diagnosing electrical issues, these instruments provide valuable information for maintenance and troubleshooting purposes.
There are various types of electrical measuring instruments available, each designed for specific applications. Whether you are a professional electrician, an engineer, or a DIY enthusiast, understanding these instruments is essential when working with electricity.
In this guide, we will provide an overview of different electrical measuring instruments and their functions. From multimeters to megohmmeters, we will explore the types of instruments used in electrical testing and the safety precautions associated with them.
By the end of this guide, you will have a better understanding of the various tools and devices available for measuring and monitoring electrical parameters. Whether you are a beginner or an experienced professional, this guide will serve as a valuable resource in your electrical testing journey.
Multimeter
A multimeter, also known as a Volt-Ohm meter (VOM), is a handheld device that combines multiple measurement functions, including voltage, current, resistance, and frequency, into a single unit.
The multimeter is a versatile device that can be used to test and troubleshoot electronic equipment, motor controls, domestic appliances, power supplies, and wiring systems. Its portable and compact design makes it convenient to carry and use in different locations or on the go.
With a multimeter, you can accurately measure voltage to check if electrical circuits are delivering the expected power. It allows you to determine the current flowing through a circuit, helping you analyze the performance and efficiency of electrical devices. The resistance measurement function helps identify faulty or damaged components in a circuit, allowing for timely repairs.
In addition, a multimeter can measure frequency, which is essential for diagnosing issues in electrical systems that rely on specific frequency ranges, such as motor controls and power supplies.
With its ability to measure voltage, current, resistance, and frequency, this handheld device helps you ensure the proper functioning of electronic equipment, motor controls, domestic appliances, power supplies, and wiring systems, making it an essential addition to any toolkit.
Megohmmeter
A megohmmeter, commonly known as a "megger," is a specialized type of ohmmeter used to measure the electrical resistance of insulators. It plays a crucial role in ensuring the safety and efficiency of electrical systems. Megohmmeters are designed to accurately measure resistance values ranging from several megohms to several million megohms, allowing technicians to evaluate the insulation properties of various equipment and components.
Megohmmeters are extensively used in industries such as power generation, transmission, and distribution. They are particularly valuable for assessing the insulation integrity of critical equipment like circuit breakers, transformers, switchgear, and cables. By measuring the resistance, technicians can identify potential issues like degraded insulation, moisture ingress, or other faults that may compromise the safety and functionality of electrical systems.
Unlike standard ohmmeters, which measure low resistance values, megohmmeters utilize high voltage levels to test the insulation properties of materials. This high voltage helps to identify leaks or weak spots in the insulation and ensures that the materials meet the required safety standards. Megohmmeters provide valuable insights into the electrical health of different components, allowing technicians to diagnose problems and take preventive actions.
When using a megohmmeter, it is important to follow safety precautions and use the appropriate personal protective equipment (PPE) to protect against potential electrical hazards. Technicians should carefully follow the manufacturer's instructions and ensure that the equipment is properly calibrated and maintained for accurate measurements. By utilizing megohmmeters in regular testing and maintenance procedures, electrical systems can operate at their optimum level, ensuring reliable performance and reducing the risk of malfunctions and costly downtime.
Safety Precautions and Conclusion
Before using a multimeter or any electrical testing equipment, it is crucial to understand the necessary safety precautions and guidelines. This ensures not only the accuracy of the measurements but also the personal safety of the operator.
To begin, it is essential to check the multimeter's electrical parameters, such as voltage range and current capacity, to ensure they are suitable for the intended application. Additionally, understanding the multimeter's Category (CAT) rating is crucial in assessing its safety level for various electrical environments. The CAT rating indicates the maximum voltage and current the multimeter can safely withstand.
Furthermore, performing a visual inspection of the multimeter before use is vital. One must check for any physical damage, loose connections, or worn-out leads or probes. If any defects are identified, the multimeter should be repaired or replaced to avoid potential hazards.
When working with electricity, personal protective equipment (PPE) is essential. This may include insulating gloves, safety glasses, and non-conductive footwear. Using PPE not only protects against electrical shock but also ensures overall safety in case of accidents.
In conclusion, adhering to proper safety precautions and guidelines when using multimeters or any electrical testing equipment is of utmost importance. By considering multimeter CAT ratings, performing visual inspections, and wearing appropriate PPE, the operator can minimize the risk of electrical hazards. These preventive measures ensure the accurate and safe functioning of the multimeter, allowing for reliable measurements and effective troubleshooting in various electrical systems. Remember, safety should always be the top priority when working with electricity.
FAQ
What is electrical testing and why is it important?
Electrical testing involves applying voltage or current to a circuit and comparing the measured value to an expected result. It is important because it helps verify the calculations within a circuit and diagnose electrical issues.
What are some commonly used electrical measuring instruments?
Some commonly used electrical measuring instruments include multimeters, megohmmeters, low-resistance ohmmeters, hipotential test sets, high current test sets, secondary test sets, relay test sets, power factor test sets, and winding resistance test sets.
What is a multimeter used for?
A multimeter, also known as a Volt-Ohm meter (VOM), is a handheld device that combines multiple measurement functions, such as voltage, current, resistance, and frequency, into a single unit. It is primarily used to diagnose electrical issues in a wide range of industrial and household devices.
What is a megohmmeter used for?
A megohmmeter, commonly known as a "megger," is a specialized type of ohmmeter used to measure the electrical resistance of insulators. It is frequently used to measure the insulation of various types of equipment, including circuit breakers, transformers, switchgear, and cables.
What safety precautions should be followed when using electrical measuring instruments?
Before using any electrical testing equipment, it is important to understand the electrical parameters and safety precautions associated with them. This includes checking for appropriate CAT ratings, understanding the IP codes for dust and water resistance, and visually inspecting the meter for any physical damage. It is also crucial to take proper safety measures when working with electricity, such as using personal protective equipment (PPE) and following specific guidelines to prevent electrical hazards.