Portable Thermometer QT-3 - OPTEX Measurement Division - #1

[c] : Sensor

Dust, Dirt and scratches on optical lens may cause incorrect display Please keep optical lens clean anytime. In case of cleaning, use lightly wipe the lens with cotton swab or special cleaning cloth with a little ethanol alcohol.

QT-3 is not waterproof unit. Handle with care when cleaning.

Non-Contact Thermometer [QT-3] Instruction Manual

[Ä] : Meas [I] : Mode

OPTEX CO.,LTD. 4-7-5 Nionohama Otsu Shiga Japan

TEL (077) 524-6049 FAX (077) 524-1491

To enter the thermometer mode, press 0.

Clock function appears 15seconds later by releasing 0.

1: Adjust P in the direction of the target

2: Press 0 to measure a temperature. The value on LCD is the average temperature of surface measured.

(Notice)

The target's diameter should be bigger than the distance between the target and thermometer. (When 10mm in distance, target's diameter is at least 10mm)

To adjust clock, press 0 [§] then the digital display is flashing. Press 0 to adjust

"HOUR". Press 0 again to adjust "MINUTE". To complete Clock Adjustment, press ||]. After fifteen seconds later, clock model appears on LCD.

°C/°F Display Unit Conversion

QT-3 has two selectable display units °C/°F .

(The conversion procedure in Clock Mode)

♦ Press 0 |b] to change the temperature display unit. Press 0 to enter the other display unit

(The conversion procedure in Temperature Mode)

♦ Press [b] to change temperature display unit. Press 0 to enter other display unit.

Thank you for purchasing Optex Non-Contact Thermometer. This device is Non-Contact Thermometer with Clock function.

QT-3 is a Non-Contact Thermometer to convert the infrared energy emitted from the surface of an object into temperature value and can measure the surface temperature of solid and liquid without touching them. The temperature of gas can not be measured by this device.

For the more accurate measurement, please keep the QT-3 as closer as possible to the target when measure a temperature.

This instruction manual contains various warnings to ensure safe usage of the product and prevent damage and injury to you and other persons. Please be sure to heed the warnings and strictly follow safety procedures.

ZL\CAUTlON : This symbol signifies that improper _usage may result in injury or damage.

© rp_rohibitionj , CD TRequirementj Q Do not use this device under water environment

Not water proofed device. (Tj No direct sunlight, no dust or no high humidity and temperature

It may cause serious damage or Incorrect measurement. (T) No sudden environment temperature drift accepted

Leave the device for a while until device gets to stable. (T) No powerful electrical circumstance accepted.

It may cause series damage. (T) No shinny target could be measured

Shinny target reflects infrared emitted from others. Incorrect value appears

on LCD display. i%j No drop or violent shock accepted

Serious damage or incorrect value takes place i%j No non-standard battery allowed

Serious damage or incorrect value takes place ^ No contact to target allowed

This device Is non-contact thermometer. Contact to target is strongly

prohibited. i%j No touch to the filter allowed

Do not touch the filter, otherwise incorrect value takes place. (T) No electrical circumstance allowed

Serious damages may take place

QT-3 has several error messages on LCD

Out of measurement range, iJ or FLoj appear on LCD.

I^Hij appears when out of higher tempx FLoj appears when

out of lower tern.

^Er2j appears when rapid ambient temperature change, FEr3j appears when ambient temperature is out of -10°C or

i-50 °C . In both case, leave thermometer with ambient temperature within 0°C to+40°C at least 30minutes.

When FErj appears on LCD, remove battery from battery compartment, then leave thermometer at least one minute. After that, insert battery into battery compartment, then push "Meas" bottom. I^Erj still appears on LCD, please ask for local dealer for service.

QT-3 displays battery lifetime signals as follows.

Battery change is required soon

Full battery

No battery

When battery change required, please replace new battery CR2032, Lithium battery. Battery compartment is located backside thermometer.