IR720EUR - Thermometer Beha-Amprobe - Free user manual and instructions

USER MANUAL IR720EUR Beha-Amprobe

Caution! Refer to the explanation in this manual.Warning! Laser light. Do not stare into laser beam. Celsius. Fahrenheit.Battery indication. Complies with European directives. Do not dispose of this product as unsorted municipal waste. Contact a qualified recycler. IR-712 / IR-712-EUR 12:1 Infrared Thermometer IR-720 / IR-720-EUR 20:1 Infrared Thermometer IR-730 / IR-730-EUR 30:1 Infrared Thermometer

Laser Aperture Trigger Battery Cover Display Laser “ON” symbol Display backlight Measurement lock (Continuous measurement) Temperature unit (Celsius / Fahrenheit) 8 seconds auto display hold

Making measurement (Pulling the trigger) Battery indicator Primary display Secondary display

Emissivity (Adjustable from 0.10 to 1.00) MAX, MIN, DIF, AVG temperature values

• Do not stare into laser beam.

• Do not point laser directly at eye or indirectly off reective surfaces.

• For use by competent persons only.

• Replace the batteries as soon as the low-battery indicator appears.

• Do not use the thermometer if it operates abnormally.

• Do not operate the thermometer around explosive gas, vapor, or dust.

• To avoid a burn hazard or re, know that reective objects may be much hotter than the indicated temperature reading.

• Do not leave the thermometer on or near objects of high temperature.

• If the thermometer is used in a manner not specied by this manual, the protection provided by the thermometer may be impaired or may result in hazardous laser radiation exposure. Cautions To avoid damaging the thermometer under measurement, protect them from the following:

• EMF (electro-magnetic elds) from arc welders, induction heaters

• Thermal shock (caused by large or abrupt ambient temperature changes — allow 30 minutes for instrument to stabilize before use)

• Do not leave the thermometer on or near objects of high temperature

UNPACKING AND INSPECTION

Your shipping carton should include: 1 Thermometer (IR-712 / IR-712-EUR or IR-720 / IR-720-EUR or IR-730 / IR-730-EUR) 1 Carrying case 1 9V battery (installed) 1 Users manual If any of the items are damaged or missing, return the complete package to the place of purchase for an exchange.4 FEATURES The Amprobe IR-712 / IR-712-EUR, a 12:1 distance to spot ratio infrared thermometer, offers best in class accuracy and response time with a temperature measurement range of 0°F to 1022°F or -18°C to 550°C. The IR-712 / IR-712-EUR is specifically designed for HVAC/R, electrical, industrial maintenance, automotive as well as quality control and fire prevention applications.

• 12:1 Distance to Spot ratio

• Temperature range of 0°F to 1022°F or -18°C to 550°C

• Precision accuracy and rapid response time

• Laser pointer, backlit dual LCD Display

• Auto display hold and MAX/MIN memory

• Adjustable emissivity for measuring a variety of materials The Amprobe IR-720 / IR-720-EUR, a 20:1 distance to spot ratio infrared thermometer, offers best in class accuracy and response time with a temperature measurement range of -26°F to 1922°F or -32°C to 1050°C. The IR-720 / IR-720-EUR is specifically designed for HVAC/R, electrical, industrial maintenance, automotive as well as quality control and fire prevention applications.

• 20:1 Distance to Spot ratio

• Temperature range of -26°F to 1922°F or -32°C to 1050°C

• Precision accuracy and rapid response time

• Laser pointer, backlit dual LCD Display

• Auto display hold and MAX/MIN memory

• Adjustable emissivity for measuring a variety of materials The Amprobe IR-730 / IR-730-EUR, a 30:1 spot to distance ratio infrared thermometer, offers best in class accuracy and response time with a temperature measurement range of -26°F to 2282°F or -32°C to 1250°C. The IR-730 / IR-730-EUR is specifically designed for HVAC/R, electrical, industrial maintenance, automotive as well as quality control and fire prevention applications.

• 30:1 Distance to Spot ratio

• Temperature range of -26°F to 2282°F or -32°C to 1250°C

• Precision accuracy and rapid response time

• Laser pointer, backlit dual LCD Display

• Auto display hold and MAX/MIN memory

• Adjustable emissivity for measuring a variety of materials

HOW THE THERMOMETERS WORK

Infrared thermometers measure the surface temperature of an object. The thermometer’s optics sense emitted, reflected, and transmitted energy, which is collected and focused onto a detector. The unit’s electronics translate the signal into a temperature reading which the unit displays.

OPERATING THE THERMOMETER

Temperature Measurement The thermometer will turn on when you pull the trigger and also features an auto-off function that automatically powers down the thermometer after 8 seconds of inactivity. To measure temperature, point the thermometer at an object and pull the trigger. You can use the laser pointer to help aim the thermometer. Pull and hold the trigger when measuring the target surface. When the trigger is released, the display will hold the reading for 8 seconds. Be sure to consider distance-to-spot size ratio and field of view. The laser is used for aiming only and is not related to temperature measurement.5 Rotary Switch Positions Button Description MODE Press MODE button to toggle between MAX, MIN, DIF, and AVG options. When the thermometer goes into sleep mode, press MODE to turn the thermometer ON again and it displays the last measurement result. SET Press to enter set-up mode stepping through Emissivity, Trigger Lock and Switching °C/°F set-up. Details refer to the below Emissivity, Trigger Lock and °C / °F set-up.

Press to turn the display backlight ON or OFF. When the thermometer enters the setup up mode, press to select a set-up option (Emissivity, Trigger lock, Switching °C / °F).

Press to turn the laser light ON or OFF. When the thermometer enters the setup up mode, press to select a set-up option (Emissivity, Trigger lock, Switching °C / °F). Emissivity set-up

1. Press SET button to select Emissivity set-up, icon is blinking on the display

to increase the value by 0.01. Press and hold for quick setting. The maximum value is 1.00.

to decrease the value by 0.01. Press and hold for quick setting. The minimum value is 0.01.

4. Press MODE button to complete the setting and exit Emissivity set-up, or press SET button to complete the setting

and continue setting for Trigger Lock. Note: Default emissivity is 0.95.6 Table of Surface Emissivity Measure Surface Switch Setting METALS Aluminum Oxidized 0.2 – 0.4 Alloy A3003 Oxidized 0.3 Roughened 0.1 – 0.3 Brass Burnished 0.3 Oxidized 0.5 Cooper Oxidized 0.4 – 0.8 Electrical Terminal Blocks 0.6 Haynes Alloy 0.3 – 0.8 Inconel Oxidized 0.7 – 0.95 Sandblasted 0.3 – 0.6 Electoropolished 0.15 Iron Oxidized 0.5 – 0.9 Rusted 0.5 – 0.7 Iron Cast Oxidized 0.6 – 0.95 Unoxidized 0.2 Molten 0.2 – 0.3 Iron Wrought Dull 0.9 Lead Rough 0.4 Oxidized 0.2 – 0.6 Molydbenum Oxidized 0.2 – 0.6 Nickel Oxidized 0.2 – 0.5 Platinum Black 0.9 Steel Cold-Rolled 0.7 – 0.9 Ground Sheet 0.4 – 0.6 Polished Sheet 0.1 Zinc Oxidized 0.1 Measure Surface Switch Setting NON-METALS Asbestos 0.95 Asphalt 0.95 Basalt 0.7 Carbon Unoxidized 0.8 – 0.9 Graphite 0.7 – 0.8 Carborundum 0.9 Ceramic 0.95 Clay 0.95 Concrete 0.95 Cloth 0.95 Glass Plate 0.85 Gravel 0.95 Gypsum 0.8 – 0.95 Ice 0.98 Limestone 0.98 Paper (any colour) 0.95 Plastic Opaque 0.95 Soil 0.9 – 0.98 Water 0.93 Wood, (natural) 0.9 – 0.957 Trigger Lock The thermometer trigger can be locked on for continuous measurement. To lock the trigger:

1. Press SET button to select Trigger Lock set-up, icon

is blinking on the display

or to select ON or OFF.

3. Press MODE button to complete the setting and exit Trigger Lock set-up, or press SET button to complete the

setting and continue setting for °C / °F. °C / °F Set-up

1. Press SET button to select °C / °F set-up, icon °C or °F is blinking on the display

3. Press MODE button to complete the setting and exit °C / °F set-up.

Locating a Hot or Cold Spot To find a hot or cold spot, aim the thermometer outside the target area. Then, slowly scan across the area with an up and down motion until you located the hot or cold spot. Distance and Spot Size As the distance (D) from the target being measured increases, the spot size (S) of the area measured by the instrument becomes larger. The spot size indicates 90% encircled energy.8 Field of View Make sure that the target is larger than the spot size. The smaller the target, the closer you should be to it. Emissivity Emissivity describes the energy-emitting characteristics of materials. Most organic materials and painted or oxidized surfaces have an emissivity of about 0.95. If possible, to compensate for inaccurate readings that may result from measuring shiny metal surfaces, cover the surface to be measured with masking tape or flat black paint (<150°C / 302°F ) and use the high emissivity setting. Allow time for the tape or paint to reach the same temperatures as the surface beneath it. Measure the temperature of the tape or painted surface. If you cannot use paint or use tape, then you could improve the accuracy of your measurements with the emissivity selector. Even with emissivity selector, it can be difficult to get a completely accurate infrared measurement of a target with a shiny or metallic surface. The thermometer allows you to adjust the emissivity setting for the type of surface before taking measurements. To determine the adjustment setting please refer to Table of Surface Emissivity. Reminders

1. Changes of surrounding ambient temperature can result in inaccurate readings, allow time for the

instrument to adopt the change of ambient temperatures before use. Specified accuracy applies after 30 minutes when the instrument changes to a different environment ambient temperatures.9

2. The instrument cannot measure through transparent surfaces such as glass. It will measure the surface

temperature of the glass instead.

3. See Table of Surface Emissivity for use in measuring shiny or polished metal surfaces (stainless steel,

4. Steam, dust, smoke, etc., can prevent accurate measurements by obstructing the instrument’s optics.

TYPICAL MEASUREMENTS This section describes a variety of measurements often performed by technicians. Reminder:

• User may select to turn on or off the backlight and laser whenever you are making readings with the thermometer.

• Relatively high emissivity normally means emissivity setting of about 0.95.

• Relatively low emissivity normally means emissivity setting of about 0.30.

• When user cannot identify the emissivity of the object to be measured, user could cover the surface to be measured (temperature >150°C) with black electric tape (emissivity of about 0.95). Allow time for the tape to reach the same temperature as the object to be measured. Measure and record the temperature of the tape. Aim the thermometer at the object to be measured, adjust the emissivity setting to make it as the same temperature as the tape. At this time, the thermometer emissivity setting is close to the emissivity of the object to be measured, measurement may be taken.10 Testing Contactors (Starters)

1. Press SET to select emissivity. Press / to select relatively low emissivity for bright contacts, or 0.7 mid

level for darkened contacts.

2. Press MODE to select MAX.

3. Measure line and load side of one pole without releasing trigger.

4. A temperature difference between the line and load sides of a pole indicate increased resistance of one

point and a contactor may be failing. Testing Enclosed Relays

1. Press SET and then press / to set emissivity to relatively low for un-insulated connectors or relatively

high for plastic encased relays or for Bakelite enclosed relays or insulated connectors.

5. Measure the relay casing, looking for hot spots.

6. Measure electrical connections on relay terminals looking for hot spots.

Testing Fuses and Buss Connections

1. Press SET and then press / to set emissivity to relatively high for paper covered fuse body or

insulated connections.

2. Press MODE to select MAX.

3. Scan the paper covered length of fuse.

4. Without releasing the trigger, scan each fuse. Unequal temperatures between fuses may indicate voltage or

5. Press SET and then press

/ to set emissivity to relatively low, for metal fuses and caps and insulated buss connections.

6. Press MODE to select MAX.

7. Scan each end cap on each fuse.

Note: Unequal temperatures or a high temperature indicates loose or corroded connection through the fuse buss spring clip Scanning Walls for Air Leaks or Insulation Deficiencies

1. Turn off heating, cooling, and blower.

2. Press SET to select emissivity. Press

/ to select emissivity relatively high for painted surfaces or window surfaces.

3. Press MODE to select MIN when opposite the side of the wall is at a lower temperature and/or select MAX

when the opposite side of the wall is at a higher temperature.

4. Measure an interior partition wall surface temperature.

5. Do not release the trigger. Record this temperature as your baseline (or benchmark) for a “perfectly”

6. Face the wall to be scanned. Stand 1.5m away to scan a 6cm spot on the wall (D:S=30:1). Also refer to “Field

of View” section for D:S=12:1 and D:S=20:1 Distance to Spot ratio.

7. Scan horizontal rows of wall from top to bottom, or horizontal rows of ceiling from wall to wall. Look for

greatest deviations from baseline temperature to identify problems. This completes the insulation test scan. Turn on the blower (no heat, no cooling) and retest. If test results with the blower on are different than results with the blower off, this may indicate air leaks in conditioned envelope walls. The air leaks are caused by duct leaks that create a pressure differential across the conditioned space envelope.11 Testing Bearings Warning - To avoid injury when testing bearings:

1. Do not wear loose clothing, jewelry, or anything around neck when working around moving parts such as

motors, belts, blower, and fans.

2. Make sure an electrical disconnect is within reach and operating correctly and freely.

3. Do not work alone.

Note: It works best to compare two similar motors operating similar loads

1. Press SET and then press

/ to select relatively high emissivity.

2. Press MODE to select MAX.

3. Enable motor and allow it to reach steady state operating temperatures.

4. Disable the motor if possible.

5. Measure the two motor bearing temperatures.

6. Compare the two motor bearing temperatures. Unequal temperatures or a high temperature can indicate

a lubrication or other bearing problem that is resulting from excess friction.

7. Repeat the sequence for the blower bearings.

Testing Belts and Sheaves

1. Press SET and then press / to select relatively high emissivity.

2. Press MODE to select MAX.

3. Enable the motor and allow it to reach a steady state operating temperatures.

4. Aim the thermometer at the surface to be measured.

5. Start recording temperature.

6. Slowly move the thermometer up the belt toward second sheave.

• If belt is slipping, sheave temperature will be high from friction.

• If belt is slipping, belt temperature will remain high between sheaves.

• If belt is not slipping, belt temperature will reduce between sheaves.

• If inner surfaces of sheaves are not a true “V” shape, this indicates belt slippage and will continue to operate at elevated temperatures until sheave is replaced.

• Sheaves must be properly aligned (include “pitch & yaw”) for belt and sheaves to operate at appropriate temperatures. A straight edge or taut string, can be used to check alignments.

• Motor sheave should operate at a temperature consistent with blower sheaves.

• If motor sheave is at a higher temperature at motor shaft than at outer circumference, belt is probably not slipping.

• If outer circumference of sheave is at a higher temperature than sheave at motor shaft, then the belt is probably slipping and sheaves may be misaligned. Checking for Blockage in Air-To-Air Evaporator or Condensers

1. Remove panels to gain access to coil return bends or hairpins.

2. Press SET and then press

/ to select relatively high emissivity for copper tube.

3. Start the refrigeration system.

4. Aim the thermometer at coil turn bends/hairpins.

5. Start recording temperature.

6. Take temperature of each return bend/hairpin.

• All evaporator return bends/hairpins should be at or slightly above evaporator saturation temperature from the pressure/temperature chart.

• All condenser return bend/hairpins should be at or slightly less than condenser saturation temperature.

• If a group of return bends/hairpins do not conform to expected temperatures, that indicates a blocked or restricted distributor or distributor tube.12 DETAILED SPECIFICATIONS Feature IR-712 / IR-712-EUR IR-720 / IR-720-EUR IR-730 / IR-730-EUR Temperature Range -18°C to 550°C (0°F to 1022°F) -32°C to 1050°C (-26°F to 1922°F) -32°C to 1250°C (-26°F to 2282°F) Accuracy (Assumes ambient operating temperature of 21°C to 25°C (70°F to 77°F) ±1.8% or ±1.8°C (±4F), whichever is greater (Typical) >0°C to 1250°C (>32°F to 2282°F): ±1.8% or ±1.8°C (±4F), whichever is greater (Typical) -32°C to 0°C (-26°F to 32°F): ±1.8%+1°C (2°F) or ±2.8°C (±6F), whichever is greater (Typical) Repeatability ±0.5% of reading or ±0.5°C (±1°F), whichever is greater (Typical) Display Resolution 0.1°C / 0.1°F Spectral Response 8µm to14µm Laser Sighting Single point laser Laser Power Output > 1mW Class 2, wavelength 630 to 670nm Response Time (95%) 250ms Distance to Spot (D:S) 12:1 20:1 30:1 Minimum Spot Size 25mm 25mm 24mm Emissivity Digitally adjustable from 0.10 to 1.00 by 0.01. Pre-set emissivity is 0.95 Ambient Operating Temperature 0°C to 50°C / 32°F to 120°F Relative Humidity 0% to 75% non-condensing Storage Temperature -20°C to 65°C / -4°F to 150°F (Battery not installed) Temperature Display °C or °F selectable Display Hold 8 seconds MAX/MIN Temperature Display

Dual LCD Display √ √ √ LCD Backlit √ √ √ Low Battery Indication √ √ √ Tripod mount √ √ √ Power 9V 6F22 alkaline battery or equivalent Battery Life 10 hours with laser and backlight on 30 hours with laser and backlight off Dimension (H x L x W) Approximately 169 x 138 x 53 mm (6.7 x 5.4 x 2.1 in) Weight Approximately 290 g (0.64 lb) with battery installed MAINTENANCE Lens Cleaning: Blow off loose particles using clean compressed air. Gently brush remaining debris away with a camel hair brush. Carefully wipe the surface with a moist cotton swab. The swab may be moistened with water or rubbing alcohol. NOTE: DO NOT use solvents to clean the plastic lens. Case Cleaning: Use soap and water on a damp sponge or soft cloth.13 Caution! Do not submerge the unit in water. TROUBLE SHOOTING Code Problem Action OL Target temperature is over range Select target within specifications -OL Target temperature is under range Select target within specifications Battery indication Low battery Check and/or replace battery Blank display Possible dead battery Check and/or replace battery Laser does not work

2. Use in area with lower ambient

temperature BATTERY REPLACEMENT To install or change one 9V battery (see below):

1. Push the button and pull the handle downward to open battery cover.

2. Install the battery noting its correct polarity.

3. Re-install the battery cover.