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How to Read an Oil Tank Gauge

If you think your boiler, warm air furnace or water heater has stopped working, the first thing you want to check is the oil tank gauge. By finding and reading your oil tank gauge, you can figure out if the heating appliance in your home is broken or if your tank is out of fuel. […]



How to Read a Tab Delimited File in PHP

Text files often store data that you want to read and use with a PHP script. These files are typically either comma-delimited, tab-delimited or use a fixed field width. You can read a tab-delimited file into PHP by reading the contents into a variable, splitting the variable into individual lines or records and splitting each […]



What Does a Normal EKG Reading Look Like?

EKC or ECG stands for electrocardiogram. It is a recorded visual representation of the electrical impulses in the heart that make it beat. Physicians use EKGs to diagnose potential illness within the heart. This depends on observing deviations from the normal EKG reading, which is used as a baseline for diagnosis. EKG Electrodes Normal Sinus […]



How to Enable a 2530P Fingerprint Reader

HP’s 2530P notebook computer has an Intel processor, a 12.1-inch WXGA display, two wireless local area network antennas, and supports up to 8 GB of system RAM. The 2530P has an optical DVD/CD drive and supports a hard drive ranging from 80 to 160 GB. Its fingerprint reader allows a user to log into Windows […]



How to Read Common Blood Tests

At almost any checkup, we give blood samples because they’re a really good indicator for our general health. Most of us don’t have any idea what the results for the test mean. Here’s a basic guide for knowing what the results to your blood tests mean. Read your test results. Find your RBC count value […]



How to Read a Technical Drawing

Technical drawings are used to visualize just about anything that is manufactured, built or assembled. From idea to drawing to factory, mill or construction firm, a technical drawing describes shape, dimensions, materials, construction and overall look of the object being created. With a few tips and some insight about terms and meaning, anyone can visualize […]



How to Sight-Read Choir Music

Most choral groups require their members to sight-read music. Sight reading requires the ability to look at an unfamiliar piece of written music and sing the notes assigned to the singer’s part. It calls for a knowledge of musical notation and a good ear for rhythm and intervals. As with any other art, learning to […]



How to Read a Thermocouple With a Voltmeter

A thermocouple is a small electrical device that is basically the junction of two wires that are composed of different metals. Because different metals react differently to temperature, an electric potential develops at the juncture. This electrical potential varies with temperature, and therefore the temperature can be calculated when the voltage is known. A voltmeter […]



Tutorial for Reading Wiring & Electrical Prints

A blueprint or schematic represents an architect’s plan for construction of a building. The schematic contains technical drawings indicating the placement of electrical outlets, wiring, light fixtures and the building’s other structural components. By studying the print, an engineer or homeowner can determine where important fixtures like a single-pole light switch, doorbell or thermostat are […]



Dangerous High Blood Pressure Readings

High blood pressure, or hypertension, occurs when the force of blood pushing against a person’s artery walls is stronger than it should be. Blood pressure is always measured with two numbers: systolic, when the heart pumps blood, and diastolic, when the heart relaxes. Systolic is the first number written or spoken in a blood pressure […]



How to Read Wiring Diagrams

Electricity is a modern convenience that many of us take for granted. But when there’s a problem, it takes a skilled professional to fix the problem. Many do it yourself homeowners try to tackle small electrical matters. When you do this, you might encounter a wiring diagram. And those diagrams are more difficult to read […]



How to Read Basic EKG

Cardiac output is important to a patient because if the heart is not functioning properly there may not be enough oxygen pumped through the body. The electrocardiogram is a noninvasive procedure using ultrasound waves that charts the rate and rhythmic pulse of the heart over time. (Each small box on the EKG paper spans .04 […]