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2866983
Primary-switched MINI POWER supply for DIN rail mounting, input: 1-phase, output: 24 V DC/1.5 A
customer-131
STOCK: 1
Fast shipping2906236
Set consisting of a 4-way signal conditioner with push-in connection technology and a Rogowski coil 600 mm in length/190 mm in diameter for AC current measurement on busbars and power lines.The signal conditioner outputs 8 different standard signals on th
customer-131
STOCK: 1
Fast shipping2810625
Current measuring transducer for 1 A and 5 A AC, the output signal 0...20 mA or 4...20 mA, can be configured using a DIP switch with an operating mode indication through an LED
customer-131
STOCK: 1
Fast shipping2902822
Constant voltage source, input voltage 9.6 - 30 V DC, output voltage 10 V, 7.5 V, 5 V, 2.5 V DC, electrically isolated, can be configured via DIP switches, screw connection technology, standard configuration
customer-131
STOCK: 1
Fast shipping2902000
3-way signal conditioner with plug-in connection technology for the electrical isolation of analog signals. Input signal: 0 ... 20 mA, output signal: 0 ... 10 V, screw connection technology
customer-131
STOCK: 1
Fast shipping2924100
Ex i solenoid driver. For the intrinsically safe control of Ex i solenoid valves, alarm modules or LEDs installed in the Ex area. Current limitation at 58 mA. For gases up to Group IIB, loop-powered, electrical isolation, SIL 3. Push-in connection.
customer-131
STOCK: 1
Fast shipping1050233
Ex i temperature transducer: converts signals from thermocouples installed in Ex areas and mV sources and transmits a 0/4…20 mA signal to a load in the safe area. Freely programmable. 3-way isolation, screw connection, SIL.
customer-131
STOCK: 1
Fast shipping2907706
Two-channel input loop-powered 2-way isolator with increased cut-off voltage and plug-in connection technology for the electrical isolation of analog signals. Input signal = output signal: 0(4) mA ... 20 mA. Screw connection technology
customer-131
STOCK: 1
Fast shipping2924838
Measuring transducer repeater power supply and input signal conditioner, HART-transparent. Transmits supplied or active 0/4…20 mA electrically isolated signals from the field to two loads. 4-way electrical isolation, Push-in connection, SIL, PL.
customer-131
STOCK: 1
Fast shipping2866006
Ex i NAMUR signal conditioner. For operating Ex i proximity sensors and switches in the Ex area. Passive transistor output (resistive according to EN 60947-5-6), line fault transparency, up to SIL 2 according to IEC 61508; screw connection.
customer-131
STOCK: 1
Fast shipping2924087
Ex i NAMUR isolating amplifier, 2-channel. For operating proximity sensors and switches in Ex areas. The signals are transmitted via relay outputs (N/O contact) to the safe area. Line fault detection (LFD), 3-way isolation, SIL 2.
customer-131
STOCK: 1
Fast shipping2865625
Power and fault signaling module with screw connection, including corresponding ME 17,5 TBUS 1,5/ 5-ST-3,81 GY DIN rail connector
customer-131
STOCK: 1
Fast shipping2902990
This is an individual product; please order the complete set. The measuring transducer processes the mV signal of the upstream Rogowski coil. The measuring transducer has 8 current measuring ranges (100 A ... 4000 A AC) which can be set; max. output curre
customer-131
STOCK: 1
Fast shipping2906233
Set consisting of a 4-way signal conditioner with screw connection technology and a Rogowski coil 600 mm in length/190 mm in diameter for AC current measurement on busbars and power lines.The signal conditioner outputs 8 different standard signals on the
customer-131
STOCK: 1
Fast shipping2906859
Medium surge protection with integrated status indicator for a 2-wire floating signal circuit.
customer-131
STOCK: 1
Fast shipping2865366
Ex i measuring transducer power supply and input signal conditioner, HART-transparent. Transfers supplied or active 0/4…20 mA electrically isolated signals from the Ex area to two loads in the safe area. 4-way electrical isolation, screw connection, SIL,
customer-131
Quick Quote
2811556
Configurable 3-way isolating amplifier with safe electrical isolation, 24 V, power bridging. DIP switches on the front, over 1600 signal conversions can be set. Standard configuration (IN 0 ... 10 V/OUT 0 ... 20 mA), spring-cage connection, SIL.
customer-131
Quick Quote
2811572
Configurable 3-way isolating amplifier with safe electrical isolation, 24 V, power bridging. DIP switches on the front, over 1600 signal conversions can be set. Order configuration, spring-cage connection, SIL.
customer-131
Quick Quote
2924029
Ex i repeater power supply and input isolating amplifier, HART Sends fed or active 0/4-20 mA signals from the Ex area to a load (active or passive) to the safe area. Electrical 3-way isolation; SIL 2, wide range power supply.
customer-131
Quick Quote
2924236
Ex i measuring transducer power supply and input signal conditioner, HART-transparent. Transfers supplied or active 0/4…20 mA electrical isolation signals from the Ex area to two loads in the safe area. 4-way electrical isolation, Push-in connection, SIL,
customer-131
Quick Quote
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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.