JT2005
Infrared Thermometer
Operation Manual
Overview
Product Features
Safety Instructions
Specifications
Function Description
Operations
⚠
Please do not aim at people or animals with the laser directly or indirectly.
Please do not look at the laser directly or through other optical tools (telescope, microscope, etc.).
If the battery symbol on the LCD display is flashing, replace the batteries immediately to avoid inaccurate
measurements before using the thermometer.
Inspect the case before using the thermometer. Do not use the thermometer if it is damaged. Look for cracks or
missing plastic.
Please refer to the emissivity information for the actual temperature. Reflective objects can cause the actual
temperature value to be higher than the measured temperature value. When measuring these objects, please be
aware of not to touch very hot surfaces.
Do not use the thermometer in an explosive gas, steam or humid environment.
To ensure measurement accuracy, place the thermometer in the test environment for more than 30 minutes before
using it.
Avoid keeping the thermometer near very hot objects for a long time.
JT2005 is a professional non-contact infrared thermometer (hereinafter referred as thermometer) can determine surface
temperature measuring the infrared energy radiated by the target surface. JT2005 can measure temperatures from -35
°C to 850°C. This 20:1 ratio meter can store up to 99 sets of data and perform scheduled measurement with a maximum
interval of 96 hours between the two measurements. This thermometer is also IP65 rated and can withstand 3 meters
drop.
GE Certification: EN61326-1: 2013
Laser Safety Standard: EN60825-1: 2014
Warning
Power On and Off
Manual Measurement
MAX/MIN/AVG/DIF Value Reading
HIGH Alarm ON/OFF
Lock Measurement
Note: During measurement, the target must be larger than the light spot to ensure accuracy. Please refer to the D:S values.
Safety Standards
Reference Standards:
JJG 856-2015
Strong and Durable:
Passed 3m drop test.
Dustproof and Waterproof:
Passed IP65 level dustproof and waterproof tests.
Ergonomic Design:
Comfortable handheld, simple and convenient operation.
MAX/AVG/DIF/MIN:
Can quickly display the maximum, minimum, average and difference value (between maximum and
minimum) during measurement.
Large Backlight Screen:
Large screen, bold fonts, and uniform white backlight combined make it an attractive display.
Alarm Function:
High and low temperature alarm is displayed with a flashing LED and symbol, in order to easily observe
the exceeded measurement results when alarm is triggered.
Dual-wavelength rotatable Laser indication:
Allows you to accurately and quickly determine the area to be measured.
Data Storage:
Storages up to 99 groups of data for measurement analysis.
Scheduled Measurement:
Sets a time point in which the thermometer will be automatically turned on and performs
measurement once every interval is preset, the maximum interval is 96 hours.
Monitoring Measurement:
Sets a time interval, after which the thermometer will be automatically turned on and then
performs measurements.
To avoid eyes or personal injury, please read the following safety instructions before using the thermometer:
Functions
Temperature Range
-35ºC~850ºC(-31ºF~1562ºF)
Accuracy
21ºC ~25ºC (70ºF~77ºF)
≥0ºC: ±1.8ºC or ±1.8% of reading, whichever is greater <0ºC: ±(10% of r 1.8ºC)
≥32ºF: ±3.6ºF or ±1.8% of reading, whichever is greater <32ºF: ±(10% of r 3.6ºF)
Temperature coefficient
0.1ºC/ºC (0.1ºF/ºF) or ±0.1% of reading per degree, whichever is greater
D:S Ratio
20:1 (calculated when energy is 90%)
Emissivity
0.1~1.0 adjustable
Response Time
250ms (95% of reading)
Spectral Response
8um~14um
Resolution
0.1ºC (0.1ºF)
Repeatability
0.8°C or 0.8% of reading, whichever is greater
Number of lasers
Dual Lasers
Laser type
CLASS II
Laser wavelength
630nm~670nm
Laser power
<1mW
Battery type
9V Battery (1604A)
Battery life
≥16H
Product size
189 x 118 x 55mm
Weight
292g
Operating temperature
0ºC~50ºC (32ºF~140ºF)
Storage temperature
-20ºC~60ºC (-4ºF~140ºF)
Operating humidity
<90% RH (non-condensing)
Operating altitude
2000m
Protection level
According to IEC60529, complies with IP65
Drop test
3m
Temperature measurement lock trigger
Laser on
High and low limit alarm
Low battery
Temperature measurement trigger
Measurement data hold
Unit
Measurement value on main display
Measurement value on secondary display
Emissivity
Data storage mode
Scheduled measurement
Monitoring measurement
Auto shutdown protection
Mode
Gently pull the trigger to power on thermometer, LCD screen and the backlight will be turned on.
The thermometer will be powered off automatically without operation for 8s.
Pull and hold the trigger after aiming at the target. The SCAN icon will be flashing indicating that the target object
temperature is being measured.
Releasing the trigger, the SCAN icon disappears and the HOLD icon appears, indicating that the measurement has
stopped and the last measured value is kept.
Short press MODE button to change MAX/MIN/AVG/DIF modes respectively, the temperature value of the
corresponding modes are shown in the secondary display area (as shown below).
Short press SET button to switch to HIGH alarm ON/OFF setup (as shown below), press LOG or MODE button to switch
between ON/OFF.
Thermometer will exit the setup after 5 seconds without any operation.
When HIGH alarm is ON, HI symbol and red LED will flash when temperature exceeds the high alarm limit.
HIGH Alarm Limit Setup
Short press SET button to switch to HIGH alarm limit setup (as shown below), use functional buttons to set values.
Short press LOG or MODE button to add or subtract 1 every time. Long press LOG or MODE button to add or subtract
10 every second.
Thermometer will exit the limit setup after 5 seconds without any operation.
LOW Alarm ON/OFF
Short press SET button to switch to LOW alarm ON/OFF setup (as shown below), press LOG or MODE button to switch
between ON/OFF. Thermometer will exit the setup after 5 seconds without any operation.
When LOW alarm is ON, LO symbol and blue LED will flash when temperature is lower than the low alarm limit.
LOW Alarm Limit Setup
Short press SET button to switch to LOW alarm limit setup (as shown below), press the functional buttons to set values.
Short press LOG or MODE button to add or subtract 1 every time. Long press LOG or MODE button to add or subtract
10 every second. Thermometer will exit the limit setup after 5 seconds without any operation.
Emissivity Setup
Emissivity can be adjusted from 0.1 to 1.0. Short press SET button to enter the emissivity setup interface (as shown below).
Press LOG or MODE button to set the values. Short press LOG or MODE button to add or subtract 0.01 every time, long
press LOG or MODE button to add or subtract 0.1 every second. Thermometer will exit the setup after 5 seconds without any
operation.
Unit Setup
Short press SET button to switch to the unit setup interface (as shown in the following figure), press LOG or MODE
button to change °C and °F units. Thermometer will exit the setup if there is no operation for 5 seconds.
Laser ON/OFF
Short press SET button to turn the laser on or off setup interface (as shown below), press LOG or MODE button to tum
on or off lasers. Thermometer will exit the setup if there is no operation for 5 seconds.
Lock Measurement ON/OFF
Short press SET button to switch to lock measurement ON/OFF setup interface (as shown below), press LOG or MODE
button to tum on/off the lock measurement. Thermometer will exit the setup if there is no operation for 5 seconds.
Enter/Exit Data Storage Mode
In the HOLD state of normal measurement mode, short press LOG button to enter the data storage mode, then press
LOG/MODE to select the data group to be viewed (up to 99 groups). ‘- - - -’ indicates that no data has been saved in the
group. Long press LOG for 3s to return to normal measurement mode.
During lock measurement, pull the trigger to enable function. The icon will appear on the thermometer screen
and the SCAN icon will flash. Thermometer keeps continuously measuring the target temperature.
Pulling the trigger again, the and SCAN icons will disappear, and the HOLD icon will appear. Thermometer stops
measurement and keeps the last measured value.
Power off
without
operation for 8s
1.
2.
1.
2.
1.
2.
Long press
LOG for 3s.
