RHONE PEINTURE AUTOMOBILE GM300 Infrared Thermometer Instruction Manual

AUTOMOBILE GM300 Infrared Thermometer
Instruction Manual

Introduction

This infrared thermometer is used for measuring the temperature of the object’s surface, which is applicable for various hot, hazardous or hard-to reach objects without contact safely and quickly. This unit consist of Optics, Temperature Sensor Signal amplifier, Processing circuit and LCD Display. The Optics collected the infrared energy emitted by object and focus onto the Sensor. Then the sensor translates the energy into an electricity signal. This signal will be turned out to be digital shown on the LCD after the signal amplifier and processing circuit.
Warning & Caution’s’

1. Warning:
   To avoid the potential situation may cause harm or damage to people, please pay attention to the following items:

1. Before you use this unit, check on the plastic housing carefully. If there is any damage, do not use it.
2. Do not point laser directly at eye or indirectly off reflective surfaces.
3. Do not use this unit in the environment of explosive gas, steam or dusty.

2. Caution： To avoid the damage of the unit or the target, please protect from the following situations:
   1). EMF (electro-magnetic fields) from arc welders, induction heaters.
   2). Thermal shock (caused by large or abrupt ambient temperature changes-allow 30 minutes for unit to stabilize before use.
   3). Do not leave the unit on or near objects of high temperature

Distance to Spot size

1. When take measurement, pay attention to the Di stance to Spot Size. As the Distance (D) from the target surface increases, the spot size (S) of the area measured by the unit becomes larger. The Distance to Spot size of the unit is 12:1
   ***This unit is equipped with a laser, which is used for aiming.
   

2. Field of view:
   Make sure the target is larger than the unit’s spot size. The smaller the target the closer measure distance. When accuracy is critical, make sure the target is at least twice as large as the spot size.

Emissivity
Most 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, cover the target surface with masking tape or flat black paint. Measure the tape or painted surface when the tape or painted reach the same temperature as the material underneath.

Operation

1. Operating the unit:
   1). Open the battery door and insert a 9V battery properly.；
   2). Pull the trigger to turn on the unit;
   3). Aim at the target surface and pull the trigger, then temperas will be shown on the LCD. This unit is equipped with a laser, which is only used for aiming.

2. Locating a Hot Spot：
   To find a hot spot, aim the thermometer outside of interest, then scan across with an up and down motion until you locate the hot spot. (Figure 3).

LCD display & Buttons

1. LCD display: Figure 4
   a. Data hold icon
   b. Scanning icon
   c. Laser on icon
   d. Backnight on icon
   e. Low Battery icon
   f. Temperature unit
   g. Temperature reading
   

2. Buttons: Figure 5
   (1) Trigger: When pull the trigger, LCD display read with SCAN icon. Release the trigger, displ ay reading with HOLD icon for 7 sec(approx).
   Built-in 20 sec auto power off function. (2)Laser on/off button
   (3) Celsius / Fahrenheit switch button
   (4) Back light on/off button：When backlight is on, any operations will activate the backlight for 7 seconds.

Maintenance

1. Lens Cleaning:
   Blow off loose particles using clean compressed air. Gently brush remaining debris away with a moist cotton swab. The swab may be moistened with water.

2. Case cleaning: Clean the case with a damp sponge/cloth and mild soap.

Note:

1. Do not use solvent to clean plastic lens.
2. Do not submerge the unit in water.

Specification

-50℃~ 0℃( 58℉- 32℉) ： ±3℃ (±5℉) Whichever is greater
Resolution| 0.1℃ or 0.1℉
Repeatability| 1% of reading or 1℃
Response time| 500 mSec, 95% response
Emissivity| 8-14 um
Spectral response|  0.95 Preset
Distance to Spot size| 12:01
Operating Temperature| 0 ~40℃ (32 ~ 104℉)
Operating Humidity| 10~95%RH non-condensing， up to 30℃(86℉)
Storage Temperature| -20 ~ 60℃ (-4~140℉)
Power| 9V  battery
Typical battery life| Non-laser mode: 22 hrs; Laser Models:12 hrs
Weight| 147.5g
Dimension| 153x101x43mm

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