Blackspur Dt100 Manually

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From date of shipment (a six month limited warranty applies to sensors and cables). If it should become necessary to return the instrument for service during or beyond the warranty period, contact the Customer Service Department at (781) 890-7440 ext. 210 for authorization or visit our website www.extech.com for contact information. A Return Authorization (RA) number must be issued before any product is returned to Extech.

The sender is responsible for shipping charges, freight, insurance and proper packaging to prevent damage in transit. This warranty does not apply to defects resulting from action of the user such as misuse, improper wiring, operation outside of specification, improper maintenance or repair, or unauthorized modification. Extech specifically disclaims any implied warranties or merchantability or fitness for a specific purpose and will not be liable for any direct, indirect, incidental or consequential damages.

Swiff player portable 2015. Extech's total liability is limited to repair or replacement of the product. The warranty set forth above is inclusive and no other warranty, whether written or oral, is expressed or implied.

By A multimeter is an electronics testing device that, um, tests multiple things, including resistance, voltage, and current. Using certain multimeter models, you can test to be sure that components — such as diodes, capacitors, and transistors — function properly. You can also troubleshoot your circuit to see where current is failing and pinpoint the problem spots. You don’t have to break into your piggy bank to buy a multimeter. You can find them for about if you want fancy features, you can spend over $100. Find a model whose price you like and then splurge on the next higher-priced model. You will use a multimeter all the time.

Trust us: It’s worth a few extra bucks for a better model. How a multimeter works A multimeter has a set of leads: a black one and a red one. You attach these leads to the component or portion of the circuit that you’re testing, and a digital readout provides the results. You adjust a knob to set the test you wish to perform such as resistance, voltage, or current as well as the range to test.

Note: Some multimeters have an auto-ranging feature that saves you the trouble of setting the range. Test leads that typically come with multimeters use simple cone-shaped tips. You can buy test clips that slip onto the cone-shaped tips to make it easier to clip them onto the leads of a component. This makes testing much easier, trust us. The two things you’ll probably test most often with a multimeter are resistance and voltage. Reading resistance The problem with resistors is that manufacturers seem to expect you to memorize the color code that identifies the resistance rating.

Here is an easier way: 1. Clip your test leads onto the resistor leads. Dial your multimeter to the resistance range you think the resistor fits in. Read the value. If your multimeter reads 1, you guessed too low of a value. Move the dial to the next range up until you get a valid reading. If your multimeter reads at close to 0 (zero), you guessed too high of a value.

Dial to the next range down until you get a valid reading; if you get to the lowest range and the value is still 0, whatever you’re testing has zero resistance. Testing switches or relays is another common use of the resistance-testing feature of your multimeter. You can clip your test leads onto the lugs of an SPST switch to verify that it’s working. ( Hint: Occasionally, they don’t work.) When the switch is open, you should get a value of 1, meaning that the resistance is higher than your meter can measure. When the switch is closed, you should get a low resistance — close to 0 (zero) ohms. You can also test SPDT or DPDT switches or relays to make sure which lugs are connected in which switch position.