Dt 838 multimeter with thermocouple. Multimeter circuits. AC voltage

A multimeter is a fairly well-known device that allows you to perform all the necessary electrical measurements in a matter of seconds. With its help, you can quickly and accurately set the strength of current and voltage, resistance. At the same time, it allows you to easily and efficiently ring the circuit for its integrity.

As numerous practice shows, with the help of a multimeter, people who are engaged in radio engineering check diodes and transistors for their performance. If we talk about more expensive models, then they have much more functions and even allow you to measure the capacitance of capacitors, temperature, inductance and many other characteristics that electrical equipment may have.

How to use a dt-830b, dt-838, dt-832b multimeter, instructions for use for dummies are considered incredibly popular, because it is these models of devices that are usually used most often. They are easy to use and not very expensive. If you have no idea how to handle a measuring device of this type, then on our website you can find a large number of videos showing all the details of using the product in practice.

The device and principle of operation of the digital multimeter dt

In order to understand how the device is arranged and on what principle it works, we will take the popular dt-838 model as an example. If you independently figure out how this model works, then you should not have any difficulties using other devices of this type. The only differences that different multimeters have can only be the icons that are applied to the products. In addition, there may be some additional functions. On the front side of the model we have chosen there is a special LCD indicator, a switch that allows you to change operating modes, as well as connectors through which the probes are connected.

Digital multimeters how to use, video instructions for use for dummies

Due to the fact that the devices have special marks, this allows you to set a value that can be controlled. This value allows you to switch and set the upper limit of the readings measurement. Regimes of a homogeneous type are located side by side and are divided into different groups.

In some more modern multimeter models, it is customary to set the measurement limit at an automatic level. In order to do this, it is enough to select the controlled value that you need using the switch. If we talk directly about the designations that are located on the front of the product, then instructions are needed, because such designations in different models from different manufacturers may differ slightly.

How to use the dt-830b, dt-832v, dt-838 multimeter probes, instructions for use

To use the device for its intended purpose, you must initially expose the probes and then touch them to the wire, outlet, switch, and so on. For this, on the front side of the multimeter, there are three special connectors. If we talk about measuring by colors, then this type of measurement should be used only when you carry out manipulations in a DC network. If we talk about alternating current, then in this situation there is no difference how exactly the probes will be connected.

How to use a multimeter instruction for dummies video

When taking voltage measurements, be very careful not to touch the bare areas of the probes. Before starting work, it is also very important to check whether the probes are correctly connected to the connectors on the front of the device. It should always be remembered that if you misuse the dt-832, 830, 838 and other models, this can cause a short circuit or more serious problems. Therefore, the instruction must be studied without fail, regardless of the amount of knowledge in this area.

Rules for working with a digital multimeter

Instructions for use on how to use a dt multimeter should be read before starting work, especially if you have very little experience in taking measurements. If, after that, you cannot fully work with the device, then watch the video on our website, where it will be described in detail how to use this device correctly and accurately.

How to use a multimeter instruction for dummies video

In order to be able to measure the voltage with a multimeter, nothing special is needed. All kinds of switching in the circuit, etc., are not required. The main rule in this situation is that you need to try to determine the approximate value as accurately as possible, as well as the type of voltage that you are going to measure. So, insert the appropriate test leads into the socket and then lightly touch the terminals of the socket. When a touch occurs, you need to have time to fix those readings that the device shows.

If you are still a kettle, then having learned how to use a multimeter DT832B, DT830, DT838 allow everyone to measure the DC current. It is very important in this situation to install the probes correctly. Otherwise, the fuse starts to work, which then needs to be replaced immediately so that more serious breakdowns and other things do not occur. It should be noted that it is advisable to work with the mode for measuring the current strength for no more than 15 seconds. The measurement limit must be set at least with a minimum margin. After the probes are installed, you will need to disconnect the circuit and connect the device itself - be sure to in series.

In order to be able to determine the active resistance of an element, you must first disconnect it from the circuit, then connect the multimeter in a parallel way. If you incorrectly set the maximum value, then in this situation it will not damage the digital device. If this happens, then you will see several units on the screen and no more.

Video review of the DT-830D multimeter. Instructions for use for dummies

In order to be able to ring the circuit without problems, set the switch on the multimeter to ring mode, and then carefully close the probes. The device must necessarily emit a sufficiently loud sound signal, and then display a reading that will be as close to zero as possible. A similar procedure is usually carried out in order to find out if the tester is working and whether a multimeter can be used. In the situation when the tested circuit is intact, the device will emit a certain sound signal, and then show the resistance value on its screen. If an open circuit or other breakdown is observed in the circuit, the numbers on the screen will show an increase. In some cases, only a few may appear and nothing else. Some, more modern models may show a special abbreviation "O.L" in case of non-continuity.

It is imperative to check the operation of the device. In order to do this, you need to additionally connect a voltmeter to the outlet in parallel. Then it is enough to compare the readings shown by the voltmeter and multimeter. In order to be able to check how correct the current measurements are, you need to take readings of the constant load of the device and additionally with an ammeter.

If you see a unit on the screen, then this can only mean one thing: the limit was set incorrectly, then you need to repeat the entire procedure for checking the operation of the digital tester. Sometimes the battery may catch fire - this means that for the device to function properly, it will need to be replaced immediately.

How to use a multimeter: instructions for use dt-830b, dt-832, dt-838 for dummies, you should definitely study before you start using the device for work. If, after you have read the instructions for use, you still have any questions, you can watch a video on our website where you can get quick answers.

Multimeter selection. Beginner video tips

The DT digital multimeter may at first glance seem like a very complex device, but in reality everything is very simple. You must have minimal knowledge to use it and be as careful as possible. If you follow all the points of the instructions for use, then you will use such a device for many years, and at the same time, no malfunctions or malfunctions will occur in its operation.

How to use a multimeter or in other words how to use a voltage tester? Quite often such questions are asked by those who purchased this product for home use, but even the instruction manual for teapots did not provide any result. Details below.

Types of voltage testers

How to check resistance and ring the wires? For this it is worth using a device called a voltmeter. The device helps to determine the required parameters on all electrical devices.

Products come in a wide variety of models, in particular:

• DT9208A, 830;
• XL830L, VC61A, A830L;
• MAS830L, 830B, 830V, MAS838;
• DT830B, DT9205A, DT9208A, DT890B, DT838L, DT830D, DT9205A;
• M832, M838, M890G, M83, 110A, M830, 81780, M266C, MS8230B, 700B;
• DT9502A, 890V;
• Ts4353, Ts4324, M182;
• M830B, M832, DT9207A, UT30D, DT700D, 360TRN;
• DT700C, 9205A, M830BZ, EAC3TO;
• DT890V, M838, MD832, DT9202A, DT850L, MD830B;
• VC9205N, 830D, Ts4317, MAS830, Ts4317M 43101, 831B;
• DT858L, MAS830B 59002, M833, M57D, Ts4342;
• DT33C, M890C, DT700B.

Such measuring mini devices can measure current strength, voltage, resistance. In addition, with the help of a multi-device, you can connect or, in other words, assemble a power supply circuit or troubleshoot it. In practice, the device is perfect for those who work directly with radio technical devices and need to check the diodes to determine their operability.

This device can only be checked by those devices in which there is an electrical circuit, in particular transistors or parts for radio receivers, a voltage divider, LAN and USB contactors, a vibrating ring of the rotor.

If we consider a more expensive network meter, then it will be able to check many other electrical devices, as it is equipped with a number of additional functions. In particular, it is possible to investigate the capacitance of a capacitor, temperature, inductance and everything else that only electrical equipment can have.

It is worth noting that multitesters are used for diagnostics by both experienced craftsmen and simply amateurs, for whom it is known how to use them only in theory. There are many instructions with a detailed description, there are pictures of how to work correctly and measure amperes, but it is important to remember that each device has its own characteristics, both in operation and in operation.

How to use the tester correctly

To use the multi-tester, you need to prepare the probes that touch the wires. To remove the probes, you need to pay attention to the connectors on the side, which will allow you not only to start using the autotester, but to competently prepare it for use. What products can be called with an electric tester?

The most important thing is that the device is electrical, and in general, regardless of what it is intended for, for example:

• Resant's welding machine;
• Battery voltage;
• Acoustic system in the car;
• The tablet;
• Acne squeezer;
• Light bulb;
• Battery;
• Keygenerator, if it burned out;
• Vibrobullet;
• Extension;
• Amperage in the outlet;
• Electric kettle;
• Car wiring;
• Serviceability of the resistor;
• Monitor cable;
• An electronic apparatus called a vinaigrette;
• If, when working with a multistyler, it starts to shock.

The most important thing is that when dialing or measuring with a digital multimeter, it is necessary that the work is carried out as accurately as possible, namely, it is strictly forbidden to touch the bare probes. First, it is better to read the rules and learn how to use this device with your own hands to avoid problems. For example, the fact that there will be an incorrect connection and, accordingly, there will be incorrect readings.

Features of the DT 838 multimeter

The voltammeter can be of various types, configurations and functionality. The multifunctional marking device 838 is in great demand, the operating instructions for which are in Russian, and it will not be difficult to calculate its principle of operation even for beginners.

Product:

• Easy to operate;
• Cheap;
• Lung;
• Compact.

The device is used almost everywhere, and it measures indicators in various modes, and the device is in demand all over the world. Why is it chosen when renovation is needed and is it suitable for beginners (option with a shop)?

The device is Chinese, and helps very quickly find an open circuit, even if there is no special work skills and special education.

To set up the device for operation and to understand the values \u200b\u200bit produces, it is enough to make an overview of the device and its operating instructions. In general, this will require setting the range switch to the desired mode by turning in the desired direction. Rotation can be clockwise or counterclockwise. As for the probes, similar in shape to the torus, they are installed in the hole with a minus in order to reveal the direct current. A second probe is inserted into the hole to measure the current. It is also suitable for measuring alternating current.

Options for how to check resistance with a multimeter

You should turn on and measure the designation of the parameters and the required values \u200b\u200bwith an ammeter (tsashka), but the main thing is to know how the symbols are indicated, for which you need to pay attention to the icon that appears on the screen, and the decoding is in the instructions, which fully describe the use of the device and what it is in the whole.

The device can be used to check:

• The integrity of the electrical wiring;
• Serviceability of the winding on an electric motor;
• Serviceability of radio components with fixed resistance;
• Transformer and its power supply;
• Grounding resistance.

Electricity is not as simple as it might seem at first glance, and to learn how to work with it, it is not enough to watch a video, however, to measure the various strengths of electricity, you can use a conventional multimeter.

Ways to ring the wires with a multimeter

Each multimeter has its own specific characteristics, but the principle of operation is similar. The versatile device can be used both in the home atmosphere and for professionals who work directly with electricity. How to call the device with a multimeter? It is worth taking as an example an apartment in an ordinary high-rise building.

There is electrical engineering in such a room in every room, just like:

• Sockets;
• Wiring;
• Switches.

All electrical circuits are connected to the panel in which the electric meter is installed. Often a room equipped with electrical appliances can go out, and this happens due to a breakdown in it, but the light is turned off throughout the apartment. What to do in such a situation?

You need to connect an analog pointer multimeter and literally measure every device that can cause interruptions.

If the multitwitch beeps when connected to a specific device, then it is quite possible that the problem lies in it. You can directly connect to the dashboard and immediately check in general whether there is a malfunction in the wiring or is it just a breakdown of the electrical appliance. The scale on the ammeter will show all the data received, but do not forget about such a moment as the error. It is the scale that shows the frequency or voltage, depending on what is being measured, and in order to determine the readings, it is enough to look at the instruction manual.

DT 830B Multimeter Brief Operating Instructions

The schematic diagram and voltage of each device can be different, just like the connection cable, and therefore, before using an ohmmeter and measuring the load in the network, you should pay attention to the features of the object under study and the multimeter itself. With the help of such devices, you can measure volts, milliamps, watts, detect such moments as phase and minus in the outlet, ohms. It is worth noting that there are a lot of devices for measuring all these values.

In particular:

• M830v Digital;
• Ermak;
• Digital;
• Multimeter;
• Sunwa;
• Vorel;
• Sunma;
• Mastech;
• Multifox;
• 5808;
• Dcma;
• Digital;
• Universal;
• Passwdfinder;
• Atlantic.

For those who constantly work with electrical devices, it is simply impossible to do without a multimeter, especially such as the model 830. The principle of operation will be clear even for a beginner, and the peculiarity of the device is reliability, accuracy, ease of use, versatility, excellent quality, optimal cost. We are learning to use the device if you are not a master.

With this equipment, you can carry out ringing the wiring in any room, regardless of whether it is residential or not.

With its help, you can ring the board in the charger and even trivially examine the light bulb for serviceability. Some people think that the functions of the multimeter are significantly limited, however, this is not at all the case. Even if you use Gravitex, Visiograph, a cable welding machine that has stopped working, then a multimeter is what you need. The most important thing is that the device is not only serviceable, but competently functioning and tuned, otherwise, incorrect readings will be received, and this will affect the repair.

Instructions for use and how to measure current with a multimeter

Why is the thermocouple device not working? How do I fix it if the problem is amperage? To do this, you need to use a multimeter that can cope with the study of even the most ordinary lamp.

For current measurements, you need:

1. Connecting the device to the item under test using the test leads.
2. If, upon contact, the indicator does not light up, then this indicates a malfunction of the equipment.
3. There is an option to reduce the measurement limit by 1 unit, and re-diagnose.

The measurement should be carried out for a short time in order to get it as accurate as possible, and it is also worth remembering that even an inoperative device can show the current strength, but very small, especially if a low-power device is being diagnosed.

It takes just a couple of seconds to measure.

Regardless of whether high or low voltage and current strength, it is not too difficult to take measurements and sometimes, if the device is used for the first time, then it is enough just to follow the instructions.

DT 832 multimeter capabilities

Many meanings can be found in the instruction manual. For example, Dcv, Acv, Dca, 181, 1000a, 182. To find out what it is, it is enough to carefully study the instructions for the multimeter, no matter what model 832 or 831 it is. Reviews about both devices are only positive, and many call them universal devices that are suitable for both masters and beginners.

The peculiarity of the equipment is that they include several functions of such units as:

• Voltmeters;
• Ohmmeters;
• Ammeters.

Every home craftsman should know what a multimeter is and how to operate it, which will make it possible to exclude referrals to specialists, whose departure to the address costs a lot. The most important thing is to strictly follow the instructions when working, since if there is even a minimal error, then it is quite possible to incorrectly carry out maintenance and repair of electrical equipment.

As for the additional features, it can be noted that the 832 multimeter model:

• Reliable;
• Cheap;
• Easy to operate;
• Compact in size;
• Does not require maintenance and repair;
• Has only positive feedback from users.

The devices are designed for ringing the power circuit, researching signaling, monitoring the health of a semiconductor, measuring the gain in a transistor and more. It is not difficult to figure out how it works, but if it starts showing incorrect values, then you need to replace the device. How to identify them?

When examining any electrical device, you must follow its instruction manual.

This will allow you to compare the received data and what it really should be. If the similarity is obvious, then the device is working properly, and at the same time you can understand whether the equipment is broken or not.

Rules: how to work with a multimeter

When working with multimeters, there are a number of precautions to take to prevent electric shocks and more serious consequences.

When taking measurements, it is strictly forbidden to work in an environment where there is high humidity, measure the measurement mode, if the device diagnostics have already begun, measure parameters that may exceed the upper limit of the multimeter, use faulty equipment, measure electrical engineering if it is connected to the network.

How to use a multimeter for dummies (video)

Having your own multimeter in everyday life is not bad, however, if you do not have the skills to work with electrical devices, then it is better to trust the process to real professionals who can thoroughly diagnose the device and provide only the correct result, which is important for repair and maintenance.

A multimeter is a very useful device that will allow both a beginner and an experienced electrician to quickly check the voltage in the network, the operability of the electrical device and even the current in the circuit. In fact, working with this type of tester is not at all difficult, the main thing is to remember the correct connection of the probes, as well as the purpose of all the ranges indicated on the front panel. Next, we will provide detailed instructions for dummies on how to use a multimeter at home!

Meet the tester

First of all, we will briefly tell you what is on the front panel of the measuring device and what functions you can use when working with the tester, after which we will tell you how to measure resistance, current and voltage in the network. So, on the front side of the digital multimeter there are the following designations:

• OFF - the tester is off;
• ACV - alternating voltage;
• DCV - constant voltage;
• DCA - direct current;
• Ω - resistance;

You can clearly see the appearance of the electronic tester from the front in the photo:

Probably, you immediately noticed the 3 connectors for connecting probes? So here you need to immediately warn you that it is necessary to correctly connect the tentacles to the tester before measurements. The black wire is always connected to the output marked COM. Red according to the situation: in order to check the voltage in the network, the current strength up to 200 mA or resistance - you must use the "VΩmA" output, if you need to measure the current value over 200 mA, be sure to insert the red probe into the socket marked "10 ADC". If you do not take into account this requirement and use the "VΩmA" connector to measure high currents, the multimeter will quickly fail because the fuse will blow!

There are also old-style instruments - analog or, as they are commonly called - pointer multimeters. The arrow model is practically not used anymore. such a scale has a higher error and, moreover, it is less convenient to measure voltage, resistance and current on a dial board.

If you are interested in how to use a pointer multimeter at home, we immediately recommend watching a visual video lesson:

Learning to work with an analog model

How to use a more modern digital model of the tester, we will talk in more detail later, having considered the step-by-step instructions in the pictures.

We measure the voltage

To independently measure the voltage in the circuit, you must first move the switch to the desired position. In a network with alternating voltage (for example, in a socket), the switch arrow must be in the ACV position. The probes must be connected to the COM and VΩmA sockets. Next, select the approximate voltage range for the network. If at this stage there are difficulties, it is better to set the switch to the largest value - for example, 750 volts. Further, if a lower voltage is displayed on the display, you can move the switch to a lower level: 200 or 50 Volts. Thus, by decreasing the setpoint to a more suitable one, you can determine the most accurate value. In a network with constant voltage, use a multimeter in the same way. Usually, in the latter case, the switch is best set at around 20 volts (for example, when repairing a car's electrical system).

A very important nuance that you should know about is that you need to connect the tentacles to the circuit in parallel, as shown in the picture:

We measure the current

In order to independently measure the current in the circuit with a multimeter, you must first decide whether direct or alternating current flows through the wires. After that, you need to find out the approximate value in Amperes in order to select the appropriate jack for connecting the black probe - "VΩmA" or "10 A". We recommend that you initially insert the probe into the connector with a higher current value, and if the display shows a lower value, switch the plug to another socket. If, again, you see that the measured value is less than the set point, the range with the lower value in Amperes must be used.

We draw your attention to the fact that if you decide to use a multimeter as an ammeter, you need to connect the tester to the circuit in series, as shown in the picture:

Measuring resistance

Well, the safest thing in relation to the safety of the multimeter will be to use a device to measure the resistance of the circuit elements. In this case, you can set the switch to any range of the “Ω” sector, and then select a suitable setting for more accurate measurements. A very important point - before using the device to measure resistance, be sure to turn off the power in the circuit, even if it is an ordinary battery. Otherwise, your tester in ohmmeter mode may show an incorrect value.

Most often, you have to measure the resistance with a multimeter with your own hands. For example, if, you can measure the resistance of a heating element, which is most likely out of order.

By the way, if, when measuring the resistance in the circuit section with a multimeter, you see the value "1", "OL" or "OVER" on the display, then you need to move the switch to a higher range, because an overload occurs at the setting you selected. At the same time, if the dial shows "0", turn the tester to a smaller measuring range. Remember this moment and it will not be difficult to use a multimeter when measuring resistance!

We use dialing

If you take a closer look at the front panel of the tester, you can see a few more additional features that we haven't covered yet. Some of them are used only by experienced radio technicians, so it makes no sense for a home electrician to talk about them (anyway, they are unlikely to be useful in domestic conditions). But there is one more important mode of the tester, which, perhaps, you will use - dialing (in the picture below we indicated its designation). For example, to find in a circuit, you need to ring the wiring, and if the circuit is closed, you will hear a sound indication. To do this, you just need to connect the probes to the desired 2 points of the circuit.

Again, a very important nuance - the power on the section of the circuit that you are going to call must be disconnected. For example, if you decide

And an ohmmeter, convenient for use in everyday life and at work. It is important for every DIYer to know how to use the DT 832 multimeter, one of the most popular devices. At first, you need to read and remember the instructions. It should be strictly followed, since the slightest mistake can damage the device.

The device is designed to determine the parameters:

• electric current;
• voltage between two points of the electrical circuit;
• electrical resistance.

The device also performs a number of other operations:

• continuity of circuits with digital indication and sound signaling;
• monitoring the health of semiconductor parts;
• measurement of transistor amplification factors;
• temperature measurements with a thermocouple.

Multimeter device

To learn how to properly use the DT 832 multimeter, you first need to familiarize yourself with its device.

1. The liquid crystal display shows the numerical values \u200b\u200bof the parameters.
2. The functions of the device are changed with a switch. When not in operation, it is turned off, otherwise the battery will be quickly discharged.
3. Three sockets of the device are used for connection with probes. In the main one ("COM") with negative polarity, a pin with a black wire is inserted. A red test lead is inserted into the next jack labeled VΩmA. It is used to measure current, voltage and resistance. The third socket (top) measures the DC current value from 0.2 to 10 A.
4. Socket for measuring the gain of transistors.
5. Probe wires. Compared to the device itself, their quality is much lower, and many home craftsmen make them anew for themselves. The wire is taken with a cross section of 1 mm 2, and the sheath must be thick and elastic. To connect to any place in the circuit through insulation or varnish, needles soldered to the wires are installed instead of probes.

How to use the DT 832 multimeter: instruction

The required mode is set with a switch. The limits of the measured characteristics are indicated on the front panel of the device and in the instructions.

Before using the DT 832 multimeter, you must set the switch to the desired mode.

Resistance

The function is used mainly for continuity of electrical circuits, when it is necessary to detect an open or to conduct new wiring. The switch is set in the resistance sector at the lowest level with an audible short circuit alarm. The absence of a signal means the presence of a break or exceeding the value of 50 ohms. Contact can be broken directly between the probe and the socket. To check the functionality of the device, the wires are short-circuited. The device should show zero or a few ohms.

Before using the DT 832 multimeter to check electronic circuits, one leg of the resistor must be removed from the board.

Chinese-made multimeters with low quality have a significant error in measuring electrical parameters. Also, the signal is distorted from connecting wires and probes. Professionals make accessories for the tester with their own hands, since the factory ones are usually of poor quality.

DC voltage

The DCV sector is divided into five bands. For measurements, a large step of the value interval is taken. If set to a smaller range, the device may burn out. If high accuracy is not required or the measured value is unknown, the multimeter is set to the maximum limit. Then the range can be set more precisely. The signal for exceeding the measurement limit is the warning HV, which lights up on the display in the upper left corner.

High voltages are measured with particular care. It is not necessary to observe the polarity: if it is reversed, a "-" sign appears on the left of the screen.

AC voltage

The ACV sector is used for measurements. It is important to correctly connect the tester to the required limits, otherwise it may fail.

Choosing a DC voltage range instead of an AC voltage range can be fatal to the instrument.

D.C

Small currents are measured in the DCA sector. You should be extremely careful here. If you mistakenly measure the voltage in this range, a short circuit will occur.

To measure current up to 10 A, the red probe is switched to the top jack. It is important to know how to use the DT 832 with high current. Readings should be taken for a few seconds!

Diode test

The radio component is soldered from the board at one end when measurements are taken. The transistor can also be checked in the resistance measurement sector, since, according to the principle of operation, the element is two diodes connected towards each other. Having found out which of the conclusions is the base, both transitions are checked for breakdown. For pnp transistors, the positive probe is installed on the base, and the negative one should show infinity at the other terminals. For npn-elements, a wire from the "COM" jack is connected to the base. The resistance of the emitter junction is greater than the collector junction and is 0.5-1.2 kΩ.

The continuity of the transitions determines the health of the transistor. Its current gain can be determined by inserting the leads into the corresponding sockets on the panel.

Temperature measurement

The switch is set to the "Temp" position, and the thermocouple plug is inserted into the sockets of the instrument. The internal temperature is measured without a thermocouple over the same function range.

Checking the health of capacitors

In the instructions describing how to use the DT 832 multimeter, for dummies, only the basic functions that are characteristic of most devices are provided. When you need to check a capacitor, and there is no possibility of determining the capacitance, you can at least establish whether it is working properly or not. First, it should be unsoldered and the legs short-circuited to remove the charge, if any.

Then the switch of the device is set for continuity and the ends of the probes need to touch the terminals of the polar capacitor, holding them in this position. If its capacitance is greater than 0.25 μF, the display will show a resistance reading and then "1" will light up. This means that charging is over and the resistance is infinitely high. If the unit appears immediately, then there is an open circuit inside, if the resistance is zero, there is a short circuit between the plates.

A non-polar capacitor is tested for a resistance value that must be greater than 2 mΩ on a serviceable part.

Multimeter "Ermak"

A simple, cheap and reliable digital multimeter "Ermak" DT 832 is suitable for an ordinary user. How to use it? Quite simply, it is an ordinary tester.

The device is turned on by setting the switch to the desired position. The characteristics are no different from the usual ones, and the price is small. Reviews of the Chinese-made model are given positive, it is quite suitable for solving household problems with electrical wiring.

Conclusion

Every master should know how to use the DT 832 multimeter, since it is extremely necessary in everyday life. Most of the reviews about the model are positive, thanks to the numerous features and the reasonable price. For the device to serve for a long time, you should carefully follow the instructions for its use.

The DT-838 digital multimeter is a good option for home use. It has a small size, a high degree of reliability and simple design.

Features of the device

The DT-838 multimeter (or tester, as it is popularly called) allows you to perform a number of measurements:

• Definition of alternating current.

• DC current measurement.

• Determination of current strength.

• Resistance measurement.

• Temperature detection (requires an additional sensor, purchased separately).

• Carry out sound continuity of wires.

The device operates in a wide temperature range (from 0 to plus 40 degrees). The DT-838 multimeter reflects the measurement results on a liquid crystal display. Moreover, the device measures indicators not once, but several times. The device calculates the average value from 3-4 readings, which is reflected on the indicator.

The multimeter is powered by a 9-volt battery. It is included in the delivery set (most often it is already installed in the device). When detecting voltage or current, the instrument is able to automatically detect polarity. It is recommended to follow them. If the polarities are violated, then the value will be reflected with a minus sign.

The kit, in addition to the battery, includes:

• Tester.

• Thermocouple.

• Probes.

When measuring, it is very important to connect the test leads correctly. To determine the current strength, the probes are connected in series with the load. To determine other parameters, the probes are connected in series.

Working with the device

The DT-838 multimeter is easy to use. But there are situations when, after purchasing a device, people do not know how to use it. There is nothing difficult here.

The range switch is set to the desired mode. To do this, you must select one of the given values. The switch itself can be turned in both directions (both clockwise and counterclockwise). One of the probes is always in the COM hole. For direct current, this should be "minus". The second probe is always installed in the VOMA hole. An exception is the determination of the current strength.

Voltage detection

To carry out any measurement, first you need to turn the switch on the DT-838 multimeter to the desired mode. The instruction will help you understand which designation corresponds to the required mode.

When choosing the desired mode, you must remember that there is constant current in batteries, accumulators, power supplies. It is designated DCV on the instrument and is located on the left. For example, when determining the DC voltage of the battery, it is enough to set the mode to twenty volts.

Alternating current is in the outlets. It is designated on the device as "AC".

The red probe must be installed in the 10ADC socket. Typically, this is the top slot.

Additional features

The DT-838 multimeter allows you to measure temperature. To do this, change the position of the switch to the desired mode. A thermocouple is connected instead of probes. The tip of the pendant is connected to the object whose temperature is to be determined. In this case, a thermocouple is necessary in order to measure the temperature of an object. Without it, the device will display its internal temperature. It is usually at the same level as the room temperature. This function allows you to control the heating (or overheating) of any radio components, microcircuits.

Calling up connections is easy. This is necessary to determine the location of the network break (if the wiring is broken). Another possibility is to determine the resulting short circuit. To start the measurement, the switch is turned to the required position. Next, with two probes, you need to touch different ends. If a short circuit occurs, a beep will sound.