TQC ST8839 Operating Manual

Operating Manual TQC itemcode: TE1006
Infrared thermometer ST8839

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ST8839

TQC itemcode TE1006

Nijverheidscentrum 14
2761 JP Zevenhuizen
The Netherlands
Phone [phone]
Fax[phone]
E-mail [e-mail]
www.tqcinfo.com

INTRODUCTION

Thank you for purchase of the 8839/TE1006 IR Thermometer. The

8839/TE1006 is capable of non-contact (infrared) temperature

measurements at the touch of a button. The built-in laser pointer increases

target accuracy while the backlight LCD and handy push-buttons combine

for convenient, ergonomic operation.

The Non-contact Infrared Thermometers can be used to measure the

temperature of objects’ surface that is improper to be measured by

traditional (contact) thermometer (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:

z Precise non-contact measurements

z High distance to target ratio measures smaller surface areas at

greater distances

z Widest temperature range

z Unique flat surface, modern housing design

z Built-in laser pointer

z Automatic Data Hold

z / switch

z Emissivity digitally adjustable from 0.10 to 1.0

z MAX,MIN,DIF, AVG temperature displays

z Backlight LCD display

z Built-in laser pointer

z Automatic selection range and Display Resolution 0.1ºC(0.1ºF)

z Trigger lock

z Set high and low alarms

WIDE RANGE APPLICATION:

Food preparation, Safety and Fire inspectors, Plastic molding, Asphalt,

Marine and Screen printing, measure ink and Dryer temperature, HVAC/R,

Diesel and Fleet maintenance.

1. SAFETY

z Use extreme caution when the laser beam is turned on.

z Do not let the beam enter your eye, another person’s eye or the eye of

an animal.

z Be careful no to let the beam on a reflective surface strike your eye.

z Do not allow the laser light beam impinge on any gas which can

explode.

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

3.SPECIFICATIONS

Model Temperature range D: S
ST-8839 -50 to 1000℃(-58 to 1832℉) 50:1

Display resolution 0.1℃(0.1℉)

Accuracy for targets:

Assumes ambient operating temperature of 23 to 25℃(73 to 77℉)

-50 to -20℃(-58 to -4℉): ±5℃(±9℉)

-20 to 200℃(-4 to 392℉): ± 1.5% of reading + 2℃(±3.6℉);

200 to 538℃ (392 to 1000℉): ± 2.0% of reading +2℃(±3.6℉);

538 to 1000℃(1000 to 1832℉): ± 3.5% of reading ± 5℃(±9℉)

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 122℉)

Storage temp. –20 to 60℃ (-4 to 140℉)

Relative humidity 10%~90%RH operating, <80%RH storage

Power supply 9V battery, NEDA 1604A or IEC 6LR61,

or equivalent

Weight 290g (10.2 oz.)

Size 100 x 56 x 230mm (3.9 x 2.2 x 9.0”)

Safety “ CE ” Comply with EMC

Note:

z Accuracy: Given at 18 to 28℃ (64 to 82 ℉), less than 80 % RH.
z 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.