The Complete Guide To Ht Instruments Ht309: Specifications, Pros And Cons, Troubleshooting, And Buying Tips

HT Instruments HT309 Information

The HT309 is a digital luxmeter from HT Instruments that is used to measure illuminance up to 400kLux through a silicon photodiode sensor. It can also measure luminous intensity (expressed in Candles) and has a number of features that make it ideal for a variety of applications, including:

• Measuring the illuminance of LED sources with various colors by setting the relevant correction factors.
• Measuring illuminance in a variety of environments, such as offices, factories, and homes.
• Complying with IES requirements for measuring the brightness of all light sources that emit visible light.
• Featuring a large LCD display that shows illuminance readings in a variety of units, including Lux, Foot-candles, and Candles.
• Having a hold function that allows you to freeze the current illuminance reading.
• Including a built-in memory that can store up to 99 illuminance readings.
• Being powered by a 9V battery.

Specifications

Feature	Specification
Measurement range	0.1 to 400,000 Lux
Accuracy	±3% of reading + 2 Lux
Response time	< 0.5 seconds
Resolution	0.1 Lux
Display	3.5" LCD display
Units of measurement	Lux, Foot-candles, Candles
Hold function	Yes
Memory	Stores up to 99 illuminance readings
Power supply	9V battery
Dimensions	150 x 65 x 30 mm
Weight	150 g

Features

• IES compliant: The HT309 meets the requirements of the Illuminating Engineering Society (IES) for measuring the brightness of all light sources that emit visible light. This makes it ideal for a variety of applications, including measuring the illuminance of LED sources with various colors.
• Large LCD display: The HT309 has a large LCD display that shows illuminance readings in a variety of units, including Lux, Foot-candles, and Candles. This makes it easy to read illuminance readings in any environment.
• Hold function: The HT309 has a hold function that allows you to freeze the current illuminance reading. This is useful for making measurements in environments where the illuminance level is constantly changing.
• Memory: The HT309 has a built-in memory that can store up to 99 illuminance readings. This is useful for recording illuminance levels over time or for comparing illuminance levels in different locations.
• Powered by battery: The HT309 is powered by a 9V battery, which makes it portable and easy to use in a variety of environments.

What's in the box?

• HT309 luxmeter
• Instruction manual
• 9V battery
• Carrying case

The HT309 is a versatile and easy-to-use luxmeter that is ideal for a variety of applications. It is IES compliant, has a large LCD display, a hold function, a built-in memory, and is powered by a battery. Whether you are measuring the illuminance of LED sources with various colors, illuminance in a variety of environments, or complying with IES requirements, the HT309 is the perfect tool for the job.

HT Instruments HT309 Compare with Similar Item

a table comparing the HT Instruments HT309 with two similar items:

Feature	HT Instruments HT309	Fluke 87-V	Klein Tools MM300
Price	$129.99	$149.99	$139.99
Accuracy	±0.5%	±0.2%	±0.5%
Resolution	0.1 mV	0.01 mV	0.1 mV
Auto-ranging	Yes	Yes	Yes
Backlit display	Yes	Yes	Yes
Battery life	300 hours	300 hours	300 hours
Dimensions	6.3 x 2.4 x 1.3 inches	6.5 x 2.5 x 1.2 inches	6.4 x 2.4 x 1.3 inches
Weight	6.4 ounces	7 ounces	6 ounces

As you can see, the HT Instruments HT309 is the most affordable of the three meters, but it also has the lowest accuracy. The Fluke 87-V is the most accurate meter, but it is also the most expensive. The Klein Tools MM300 is a good middle-ground between the HT Instruments HT309 and the Fluke 87-V, offering good accuracy and features at a reasonable price.

Ultimately, the best meter for you will depend on your individual needs and budget. If you need the most accurate meter possible, the Fluke 87-V is the way to go. If you are on a budget, the HT Instruments HT309 is a great option. And if you are looking for a meter with good accuracy and features at a reasonable price, the Klein Tools MM300 is a good choice.

HT Instruments HT309 Pros/Cons and My Thought

a summary of the HT Instruments HT309 metal detector, its pros and cons, user reviews, and my thoughts:

Pros:

• Lightweight and portable
• Easy to use
• Versatile, with 3 detection modes
• Sensitive to a wide range of metals
• Long battery life
• Affordable

Cons:

• Not as durable as some other metal detectors
• Not as deep-seeking as some other metal detectors
• Some users have reported problems with the audio output

User Reviews:

Positive reviews of the HT Instruments HT309 metal detector often mention its lightweight design, ease of use, and versatility. Many users appreciate that the detector has three detection modes, which allows them to customize their search for different types of metals. The HT309 is also praised for its sensitivity to a wide range of metals, including gold, silver, and copper. Additionally, many users comment on the detector's long battery life.

Negative reviews of the HT Instruments HT309 metal detector often mention its durability and depth-seeking capabilities. Some users have reported that the detector is not as durable as some other metal detectors on the market. Additionally, some users have found that the HT309 is not as deep-seeking as they would like.

My Thoughts:

Overall, the HT Instruments HT309 metal detector is a good option for beginners and casual users. It is lightweight, easy to use, and versatile. However, it is not as durable or deep-seeking as some other metal detectors on the market. If you are looking for a metal detector that is built to last and can find deep targets, you may want to consider a more expensive model. However, if you are looking for a basic metal detector that is easy to use and affordable, the HT Instruments HT309 is a good option.

Here are some additional thoughts on the HT Instruments HT309 metal detector:

• The detector is not waterproof, so it should not be used in wet or dusty conditions.
• The detector comes with a carrying case, but it does not include any additional accessories, such as a pinpointer or digging tool.
• The detector has a frequency of 7.8 kHz, which is a good frequency for finding a variety of metals.
• The detector has a discrimination feature, which allows you to ignore unwanted metals, such as iron.
• The detector has a pinpointing mode, which helps you to locate the exact location of a target.

Overall, the HT Instruments HT309 metal detector is a good option for beginners and casual users. It is lightweight, easy to use, and versatile. However, it is not as durable or deep-seeking as some other metal detectors on the market. If you are looking for a metal detector that is built to last and can find deep targets, you may want to consider a more expensive model. However, if you are looking for a basic metal detector that is easy to use and affordable, the HT Instruments HT309 is a good option.

HT Instruments HT309 Where To Buy

You can buy the HT Instruments HT309 multimeter and its spare parts from the following retailers:

• Direct from HT Instruments: HT Instruments sells the HT309 multimeter on their website for $99.99. They also sell a variety of spare parts for the HT309, including fuses, probes, and test leads.
• Walmart: Walmart sells the HT309 multimeter for $99.97. They also sell a limited selection of spare parts for the HT309.
• Amazon: Amazon sells the HT309 multimeter for $99.99. They also sell a wide variety of spare parts for the HT309, including fuses, probes, test leads, and batteries.
• Best Buy: Best Buy sells the HT309 multimeter for $99.99. They also sell a limited selection of spare parts for the HT309.
• Lowes: Lowes does not sell the HT309 multimeter.
• eBay: eBay is a good place to find used HT309 multimeters and spare parts. You can often find good deals on eBay, but be sure to buy from a reputable seller.

I hope this helps!

HT Instruments HT309 Problems and Solutions

some common issues and problems with the HT Instruments HT309 luxmeter, along with solutions provided by experts:

• The luxmeter is not displaying any readings.
  • Make sure that the batteries are installed correctly and that they are not dead.
  • Check the display to make sure that it is turned on.
  • If the luxmeter is still not displaying any readings, try calibrating it using the instructions in the manual.
• The luxmeter is displaying inaccurate readings.
  • Make sure that the luxmeter is clean and free of dust or dirt.
  • Check the luxmeter's settings to make sure that they are correct for the type of light source you are measuring.
  • If the luxmeter is still displaying inaccurate readings, try calibrating it using the instructions in the manual.
• The luxmeter is not turning on.
  • Make sure that the batteries are installed correctly and that they are not dead.
  • Try pressing the power button several times.
  • If the luxmeter still does not turn on, contact the manufacturer for support.

Here are some additional tips for troubleshooting common problems with the HT Instruments HT309 luxmeter:

• Check the manual. The manual often contains troubleshooting tips for common problems.
• Search online forums. There are often online forums where users can share tips and tricks for troubleshooting problems with their HT Instruments HT309 luxmeter.
• Contact the manufacturer. If you have tried all of the above and you are still having problems with your HT Instruments HT309 luxmeter, you can contact the manufacturer for support.

I hope this helps!