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2 Distance & Spot Size

As the distance (D) from the object increases, the spot size (S) of the

area measured by the unit becomes larger. The relationship between

distance and spot size for each unit is listed below. The focal point for

each unit is 914mm (36”). The spot sizes indicate 90% encircled energy.

Fig: 1

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Summary of Contents for FIRT1000

Page 1: ...Infrared Thermometer Operation Manual FIRT1000 ...

Page 2: ...N 3 FEATURES 3 WIDE RANGE APPLICATION 4 1 SAFETY 4 2 DISTANCE SPOT SIZE 5 3 SPECIFICATIONS 6 4 FRONT PANEL DESCRIPTION 7 5 INDICATOR 7 6 BUTTONS 8 7 MEASURMENT PERATION 10 8 BATTERY PLACEMENT 11 9 NOTES 12 10 MAINTENANCE CLEARING 14 ...

Page 3: ...mometer such as moving object the surface with electricity current or the objects which are uneasy to be touched Proper use and care of this meter will provide years of reliable service FEATURES Precise non contact measurements High distance to target ratio measures smaller surface areas at greater distances Widest temperature range Unique flat surface modern housing design Built in laser pointer ...

Page 4: ... Dryer temperature HVAC R Diesel and Fleet maintenance 1 SAFETY 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 no 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 ...

Page 5: ... object increases the spot size S of the area measured by the unit becomes larger The relationship between distance and spot size for each unit is listed below The focal point for each unit is 914mm 36 The spot sizes indicate 90 encircled energy Fig 1 ...

Page 6: ...9Ｒ Response time Less than 1 second Spectral response 8 14um Emissivity Digitally adjustable from 0 10 to 1 0 Over range indication LCD will show 0L 0L Polarity Automatic no indication for positive polarity Minus sign for negative polarity Diode laser Output 1mW Wavelength 630 670nm Class 2 II laser product Operating temp 0 to 50 32 to 122Ｒ Storage temp 20 to 60 4 to 140Ｒ Relative humidity 10 90 R...

Page 7: ...as the spot size 4 FRONT PANEL DESCRIPTION p IR sensor q Laser pointer beam r LCD Display s Down button t Up button u Mode button v Laser Backlight button w Measurement Trigger x Handle Grip y Battery Cover 5 INDICATOR p Data hold q Measuring indication r Emissivity symbol and value s Low battery lock and laser ON symbols t Backlight ON symbol u Ｒ symbol v High alarm and low alarm symbol w Tempera...

Page 8: ...aximum MAX Minimum MIN Differential DIF and Average AVG Temp Each time you take a reading This data is stored and can be recalled with the MODE button until a new measurement is taken When the trigger is pulled again the unit will begin measuring in the last mode selected Pressing the MODE button also allows you to access the High Alarm HAL Low Alarm LAL Emissivity EMS Each time you press MODE you...

Page 9: ...f they have been activated When the unit is locked on the backlight and laser will remain on unless it is turned off using the Laser Backlight button on the keypad To activate the alarms please slide the bottom switch SET ALARM right To set values for the High Alarm HAL Low Alarm LAL and Emissivity EMS firstly active the display by pulling the trigger or press the MODE button then press the MODE b...

Page 10: ... meter will automatically power down after approximately 7 seconds after the trigger is released Unless the unit is locked on Note Measurement considerations Holding the meter by its handle point the IR Sensor toward the object whose temperature is to be measured The meter automatically compensates for temperature deviations from ambient temperature Keep in mind that it will take up to 30 minutes ...

Page 11: ...ttery power is not sufficient LCD will display replacement with one new battery type 9V is required q Open battery cover then take out the battery from instrument and replace with a new 9 Volt battery and place the battery cover back ...

Page 12: ...sed 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 1 Locating a ho...

Page 13: ... s optics Emissivity Emissivity is a term used to describe the energy emitting characteristics of materials Most 90 of typical applications organic materials and painted or oxidized 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 pain...

Page 14: ...94 Snow 0 83 Plastic 0 85 to 0 95 Glass 0 90 to 0 95 Timber 0 90 Ceramic 0 90 to 0 94 Paper 0 70 to 0 94 Marble 0 94 Chromium oxides 0 81 Plaster 0 80 to 0 90 Copper oxides 0 78 Mortar 0 89 to 0 91 Iron oxides 0 78 to 0 82 Brick 0 93 to 0 96 Textiles 0 90 10 MAINTENANCE CLEARING Repairs or serving aren t covered in this manual should only be performed by qualified personnel Periodically wipe the c...

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