PeakTech 4945 IR Difference Thermometer User Manual

PeakTech 4945 IR Difference Thermometer

Safety precautions

This product complies with the requirements of the following directives of the European Union for CE conformity: 2014/30/EU (electromagnetic compatibility), 2011/65/EU (RoHS).
We herewith confirm that this product meets the essential protection standards, which are given in directions of council for adaptation of the administration regulations for UK of Electromagentic Compatibility Regulations 2016 and the Electrical Equipment (safety) regulations 2016.

Damages resulting from failure to observe the following safety precautions are exempt from any legal claims whatever.

• Do not subject the equipment to direct sunlight, extreme temperatures, extreme humidity or dampness
• Use extreme caution when the laser beam is turned ON
• Do not let the beam enter your eye, another person’s eye or the eye of an animal
• Be careful not to let the beam on a reflective surface strike your eye
• Do not allow the laser light beam impinge on any gas which can explode
• Do not let the beam of any body
• Do not operate the equipment near strong magnetic fields (motors, transformers etc.)
• Do not subject the equipment to shocks or strong vibrations
• Keep hot soldering iron or guns away from the equipment
• allow the equipment to stabilise at room temperature before taking up measurement (important for exact measurement)
• do not modify the equipment in any way
• opening the equipment and service- and repair work must only be performed by qualified service personnel
• Measuring instruments don’t belong to children hands!

Cleaning the cabinet
Clean only with a damp soft cloth and a commercially available mild household cleanser. Ensure that no water gets inside the equipment to prevent possible shorts and damage to the equipment.

Features

This infrared-thermometer meets ANSI S1.4 and IEC 651 Type 2 standards.

• Precise non-contact measurements
• Switchable C/F temperature units
• Auto power off
• Automatic data-hold
• Backlight LCD Display
• Laser target pointer
• Auto-ranging
• Measurement of Difference-Temperature

Front Panel description

1. Laser Pointer
2. IR-Sensor
3. Difference Slider
4. Backlight-Key
5. SCAN-Key
6. Battery Cover
7. Display
8. Laser-key
9. MODE-Key

Indicator

1. Temperatur °C (Celsius) / Temperatur °F (Fahrenheit)
2. Digital read out
3. LOW battery indicator
4. Measuring indication
5. Data Hold
6. Laser Point
7. Display of Reference value
8. Setting Temperature difference

Measurement Considerations

Holding the meter by its handle, point the IR sensor toward the object whose temperature is to be measured.

How to Use

1. Hold the unit near the location you want to scan for a draft or thermal leak.
2. Turn on the power with SCAN-Key.
3. Measure and aim at the desired reference value.
4. Press MODE-Key to set a reference value.
5. Select desired temperature difference value with slider switch.
6. Slowly scan the temperature is hotter than the reference temperature by more than the threshold, the light will turn from green to red and buzzer will quickly ring. If the scanned temperature is colder than the reference temperature by more than the threshold, the light will turn from green to blue and buzzer will slow ring.

Setting threshold for color change

• For detecting small temperature changes of 1°C (1,8°F), move the slider to the 1°C mark on the right panel
• For detecting medium temperature changes of 3°C (5,4°F), move the slider to the 3°C mark on the right panel
• For detecting large temperature changes of 5°C (9,0°F), move the slider to the 5°C mark on the right panel

For Example:

After switch on, measured reference temperature is 25°C (77°F), threshold is 3°C (5°F)

Green light| Scanned temperature is between 22°C ~ 28°C (72°F ~ 82°F)
Blue light| Scanned temperature is below 22°C (72°F)
Red light| Scanned temperature is upper 28°C (82°F)

Data-Hold

6. Turn on the unit by pressing the trigger.

1. “SCAN” Symbol is displayed in the LCD-display
2. Press the trigger again to freeze the current display. The “HOLD” indicator appears in the display.
3. Press the trigger again to return to the normal operation function.

Backlite LCD

Select backlite by first pressing the SCAN key and then pressing the BACKLITE key. Press the backlight key again to turn the backlight OFF.

Laser Pointer

1. Turn on the unit by pressing the Trigger.
2. To turn the laser pointer ON, press the LASER key.
3. Press the Laser key again to turn the laser OFF.

Desciption of the Laser Pointer

D = Distance (avoid exposure-laser radiation is emitted from this aperture) approx. 10:1
S =            diameter of the spot center
1 In= 2,5     cm     6 In = 15 cm
2 In= 5        cm     12 In = 30 cm
4 In= 10      cm      24 In = 60 cm

Please note !
The laser is only a guide line and is placed 16 mm above the Infrared-Sensor.

Technical Specifications

Specifications Infrared-Thermometer

201°C to 380°C
-58.0°F to 200°F| 0,1°F| ±2,0% rdg. ± 4°F
201°F to 716°F

Note:
Accuracy is given at 18°C to 28°C (64°F to 82°F), less than 80% R. H.

Emissivity:
0,95 fixed value

Field of view:
Make sure, that the target is larger than the unit´s spot size. The smaller the target, the closer you should be to it. When accuracy is critical, make sure, that the target is at least twice as large as the spot size.

How it Works

Infrared thermometers measure the surface temperature of an object. The unit’s optics sense emitted, reflected and transmitted energy, which is collected and focused onto a detector. The unit’s electronics translate the information into a temperature reading which is displayed on the unit. In units with a laser, the laser is used for aiming purposes only.

Field of View

Make sure that the target is larger than the unit’s spot size. The smaller the target, the closer you should be to it. When accuracy is critical, make sure the target is at least twice as large as the spot size.

Distance & Spot Size

As the distance (D) from the object increases, the spot size (S) of the area measured by the unit becomes larger. See Fig. 2

Locating a hot Spot

To find a hot spot aim the thermometer outside the area of interest, then scan across with an up and down motion until you locate hot spot.

Reminders

1. Not recommended for use in measuring shiny or polished metal surface (stainless steel, aluminium, etc.) See emissivity.
2. The unit cannot measure through transparent surfaces such as glass. It will measure the surface temperature of the glass instead.
3. Steam, dust, smoke, etc. can prevent accurate measurement by obstructing the unit’s optics.

Emissivity

Most (90 % of typical applications) organic materials and painted or oxidised surfaces have an emissivity of 0,95 (pre-set in the unit). Inaccurate readings will result from measuring shiny or polished metal surfaces. To compensate, cove the surface to be measured with masking tape or flat black paint. Allow time for the tape to reach the same temperature as the material underneath it. Measure the temperature of the tape or painted surface.

Emissivity Values

Battery Replacement

A Bat Symbol in the display is the indication that the battery voltage has fallen into the critical region (6,5 to 7,5 V). Reliable readings can be obtained for several hours after the first appearance of the low battery indication.

Open the battery compartment (see picture below) and remove the battery, then install a new battery and replace the cover.

ATTENTION !
Batteries, which are used up dispose duly. Used up batteries are hazardous and must be given in the for this supposed collective container.

Notification about the Battery Regulation

The delivery of many devices includes batteries, which for example serve to operate the remote control. There also could be batteries or accumulators built into the device itself. In connection with the sale of these batteries or accumulators, we are obliged under the Battery Regulations to notify our customers of the following:

Please dispose of old batteries at a council collection point or return them to a local shop at no cost. The disposal in domestic refuse is strictly forbidden according to the Battery Regulations. You can return used batteries obtained from us at no charge at the address on the last side in this manual or by posting with sufficient stamps.

Contaminated batteries shall be marked with a symbol consisting of a crossed- out refuse bin and the chemical symbol (Cd, Hg or Pb) of the heavy metal which is responsible for the classification as pollutant:

1. “Cd” means cadmium.
2. “Hg” means mercury.
3. “Pb” stands for lead.

You can obtain further information about the Battery Regulations from the Bundesministerium für Umwelt, Naturschutz und Reaktorsicherheit (Federal Ministry of Environment, Nature Conservation and Reactor Safety).

All rights, also for translation, reprinting and copy of this manual or parts are reserved.

Reproduction of all kinds (photocopy, microfilm or other) only by written permission of the publisher. This manual considers the latest technical knowing. Technical alterations reserved.

We herewith confirm, that the units are calibrated by the factory according to the specifications as per the technical specifications. We recommend to calibrate the unit again, after 1 year.

Customer Support

PeakTech Prüf- und Messtechnik GmbH
Gerstenstieg 4 – DE-22926 Ahrensburg / Germany
+49-(0) 4102-97398-80
+49-(0) 4102-97398-99
 info@peaktech.de
www.peaktech.de

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