Oakton WD-03316-80 Aneroid Barometer with Digital Thermometer

Oakton WD-03316-80 – Aneroid Barometer with Digital Thermometer

• Digital temperature display with 0.1° resolution
• Corrosion-resistant ABS plastic housing
• Measure barometric pressure in mbar and inches Hg
• Dual scale reads barometric pressure in mbar and inches Hg
• Switchable °C/°F readout

The Oakton 03316-80 anaroid barometer has a barometric pressure range readout of 945 to 1045 mbar, and 27.9 to 30.9 inches Hg. Oakton barometers are used to measure atmospheric pressure and temperature in indoor applications. This barometer has a built-in, bi-metallic element for temperature compensation for the aneroid capsule for pressure reading accuracy. It has a selectable, digital LCD-display of C or F readings for ease of use, and wall-mounting for ease of reference. It is used to measure at an altitude between sea level and 2,000 feet. Batteries or external power are not required.
 
The 03316-80 anaroid barometer has a resolution of 0.5 mbar, 0.1 inches Hg, accuracy + or – 1.0 mbar between 970 and 1030 mbar; + or – 2.0 mbar beyond this range. Temperature range of -20 to 60 degrees C (-4 to 140 degrees F), resolution 0.1 degree C, accuracy + or – 1.0 degree C (+ or – 1.8 degrees F) with thermistor sensor (display digital LCD). Its body dimensions are 5.25 (D) x 1.25 (W) inches, and flange dimensions are 6.375 (outer diameter) x 0.15 (D) inches. It is used with one 1.5-V AA battery (included) which last for approximately one year, and it comes in an ABS plastic case.
 
An Oakton aneroid barometer monitors impending weather changes and temperature in indoor applications.

Introduction

Thank you for purchasing an OAKTON Barometer. You have one of three models. All models are ideal for monitoring impending weather changes and temperature. They are intended for indoor use only.

Aneroid barometers 03316-70 and -72 feature a built-in bimetallic element (which provides temperature compensation for the aneroid capsule) and a glass thermometer.

Barometer 03316-80 features a °F/°C selectable digital display

Aneroid barometer with inches Hg scale
(model number 03316-70)

Aneroid barometer with mm Hg scale
(model number 03316-72)

Barometer with digital thermometer
(model number 03316-80)

Operation

Barometric pressure readings require no external power.
Note: “High pressure” and “low pressure” are relative terms. There is no distinct point on the scale that clearly defines where low pressure and high pressure begins, and vice versa.

Setting the reference needle

Your barometer features a reference needle (gold) and an indicator needle.

• The reference needle shows where the barometric pressure started.
• The indicator needle shows the current barometric pressure.

Use the adjusting knob on the front center of the unit to align the gold reference needle on top of the indicator needle. After several hours, the indicator needle will move upward move downward, or remain still.

• Upward movement means improved weather
• Downward movement means deteriorating weather (rain or snow).
• No movement means no weather change

Sea level corrections

Since air pressure changes with altitude, you must compensate your barometer accordingly. The higher you are above sea level, the lower (to the left) the indicator needle will move on the barometer.

Example: At at an altitude of 100 meters (330 feet), the barometer will drop about 12 millibar (mb). To compensate for that altitude, simply add back the 12 mb. Therefore, a reading of 1000 mb at sea level becomes 1012 mb at 100 meters altitude (see the sea level conversion chart below). To adjust the barometer to your altitude, turn the adjusting screw on the back center of the instrument to adjust the indicator needle.

We recommend that you adjust your barometer after unpacking, and again about once a year.