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  User's Manual
Product Flyer
Package Art
Features and Benefits
Competitive Advantages
What's Included?
Recommended
Specifications
What is It?
The Fieldpiece Non-contact Infrared Temperature Accessory with Laser Sight, model ATIR3, collects infrared energy (IR) and converts it to a mVDC signal that is proportional to the temperature being measured. The temperature measured is the average of all the temperatures in the 8:1 cone of viewability. The closer you are to the target, the smaller the area measured. The further away, the larger the area. The digital, non-contact ATIR3 converts the Fieldpiece “Stick” series meter, DL3 data logger, and EHDL1 electronic handle to a one-piece infrared, or IR, thermometer. Use the optional Fieldpiece ADLS2 deluxe silicone test leads or the AHDL1 adapter handle with the ATIR3 for use with DMMs with industry standard jacks.
How Does it Work?
Non-contact infrared temperature measurement is fast and easy. It works best for fast readings, relative readings (one to another or the same one at different times), or temperature readings of hard to reach places. The following are some applications:
- Heating and air conditioning where fast and/or easy measurement is most important.
- Motor bearings: high temperature can indicate bearings that might need replacement.
- Circuit breakers: a circuit breaker that is not operating properly can get hot. By scanning a panel, you will be able to find the hot one.
- Poor power line connections: a bad connection can get hot.
Operation
- Connect to COM and Volts jacks of meter. Just slide it onto the EHDL1, DL3 or “stick” meter. You can also connect to other DMMs by using the AHDL1 adapter or ADLS2 deluxe silicone leads.
- Switch to mVDC range on your meter and read the average temperature directly in ºF or ºC of everything in the cone of viewability.
- To keep temperature interference to a minimum, always try to keep your hands below bottom half of the ATIR3.
Cone of Viewability
The ATIR3 takes it’s measurement from a circle of a size determined by a simple ratio of 8:1. The diameter of this circle is 1/8 the distance between the target and the tip of the ATIR3. For example, if you’re standing 16 feet from your target, the size of the circle you’re taking the average temperature of will be 2 feet wide.
IR Temperature Measurement
When something is hot, it radiates infrared (IR) energy. The hotter it is, the more infrared energy emitted. If there's enough of it, you can feel it. The ATIR3 infrared accessory head collects infrared energy from a cone-shaped viewing area and measures the total amount of energy collected. The ATIR3 converts the total energy measured to a temperature. Distance doesn't matter because the further you go from the target, the increase in area "seen" by the sensor exactly balances the loss of energy collected from a given area.
If you want to get the temperature of something small, you must get close enough so the surface takes up the whole viewing area circle. Otherwise the surface and the background temperatures will be averaged into the reading.
The accuracy of many infrared temperature measuring systems is adversely affected by ambient temperature.
You need to be aware that if the target surface is reflective enough, it may reflect infrared from other objects. For example, if you take a reading of a shiny metal surface, the infrared energy of your face may reflect enough energy off the surface to affect the reading.
"Emissivity" of the target surface also affects the temperature reading. For a given temperature, the higher the emissivity, the higher the reading. The lower the emissivity, the lower the reading.
Emissivity of a surface indicates how easy it is for the infrared to get out. Emissivity for a dull, black surface is high (nearly 100%) so it's easy for the infrared to get out. Emissivity for a shiny surface can be much lower. If the emissivity is low, the measured temperature will be lower than actual. For relative readings of the same kind of surface, this isn't a problem. For some applications, it may be necessary to spray dull, black paint on the target to insure a more accurate reading.
For best accuracy use contact sensors (thermocouples, thermistors, etc.) anytime you take a temperature measurement. Infrared instruments should only be used when you aren’t able to touch the surface to be measured
Features and Benefits
Designed for HVAC/R, the Non-contact Infrared Temperature Accessory with Laser Sight, model ATIR3, measures infrared energy in it’s cone of view and converts it into temperature readings on your meter using the mVDC scale.
- Measures temperature without contact.
- 8:1 field of view.
- Laser sight included.
- Select ºF or ºC.
Competitive Advantages
There are other digital thermometers and dual temperature meters our there. Ours is unique. Because of the technology we employ inside, the ATH4 offers superior temperature compensation in rapidly changing environments commonly found while performing field service. Meters with thermocouple adapters often take a long time to stabilize due to transfer of ambient heat to the adapter while in a pocket, in the back of your truck, even the heat generated while in your hand. The ATH4, as with all of our k-type thermometers and meters, stabilizes rapidly so you can take it from the rooftop to the walk-in and get more accurate readings faster than the competition.
What's Included
- Infrared Temperature Accessory - ATIR3
- 9V battery (installed)
- Operator’s manual
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Recommended Accessories and Replacement Parts
Technicians who like the ATIR3 may also enjoy these instruments and accessories:
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HVAC Guide® System Analyzer - HG1
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Expandable True RMS Stick Multimeter with Backlight - HS36
Our top of the line True RMS Stick Meter, the HS36 includes the ranges you use everyday for HVAC/R field service plus includes a bright blue backlight and True RMS. Like the rest of the HS30 series, the HS36 comes equipped with a magnetic hanger, along with detachable silicone test leads and alligator clip probe tips for remote and easy one-handed testing, as well as the full set of built-in safety features. This auto-ranging stick meter also includes a bar graph on the LCD for an analog feel. Technicians who prefer our expandable stick meters tell us this is the best digital multimeter for HVAC/R field Service.
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Expandable HVAC/R Data Logger - DL3
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Superheat and Subcooling for A/C and Refrigeration - SSX34
The Fieldpiece Superheat and Subcooling for Air Conditioning and Refrigeration meter, model SSX34, measures suction line, or low side, line temperature and pressure. It then calculates actual superheat in real time using built-in P/T charts. It also measures liquid line, or high side, temperature and pressure, and calculates actual subcooling. Use it to get actual superheat on R-22, R-410A, R-134A, and R-404A fixed orifice systems and actual subcooling on TXV / TEV regulated systems. Use the “T” fitting to charge to actual superheat or subcooling by putting the SSX34 in-line between your refrigerant bottle and the system.
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Specifications
TECHNICAL SPECIFICATIONS
Conversion rate: 1mVDC per 1ºF
Resolution: 0.1ºF for meters with 0.1mVDC
Power: Standard 9V battery
LED indication: green for "On", red for low battery
Operating temp: 32ºF to 122ºF at <75%RH
Storage temp: -4ºF to 140ºF at <80%RH with battery removed
Sensor: Thermopile
Temperature range: 0ºF to 752ºF
Accuracy: Whichever is greater. At 73ºF ± 10ºF at <90%RH
±2.0%rdg or 4ºF, 32ºF to 160ºF
±3.0%rdg or 5.5ºF, 0ºF to 31ºF, 161ºF to 752ºF
Field of view: 8:1
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Display: 3 1/2 digit liquid crystal display (LCD) with maximum reading of 1999.
Overrange: (OL) or (-OL) is displayed.
Low battery indication: The battery symbol is displayed when the battery voltage drops below the operating level.
Measurement rate: 2.5 times per second, nominal.
Operating Environment: 0°C to 40°C at < 70% relative humidity.
Storage Temperature: -20°C to 60°C, 0 to 80% R.H. with battery removed from meter.
Auto power off: 15 seconds approx.
Standby consume current: <10μA
Battery: 4 pcs 1.5V (AAA size) UM-4 R03.
Battery Life: 4 hours (continuity) typical with alkaline battery (@20ÌÙ range test 10ÌÙ resistor).
Dimensions: 170mm(H) x 44mm(W) x 40mm(D).
Weight: 160g including batteries.
ELECTRICAL
Range: 20MW, 2000 MW.
Resolution: 10K W on 20MW range, 1 MW on 2000 MW range.
Accuracy:
20 MW range: ±(2%rdg + 2dgts)
2000 MW range: <500ÌÙ ±(4%rdg + 2dgts)
>500 MW ±(5%rdg + 2dgts)
Rated voltage: DC-DC converter to 1000VDC
Accuracy temperature: 23°C ± 5°C less than 70%RH
Temperature Coefficient: 0.1X (specified accuracy)/°C (28°C)
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