JT2005
Infrared Thermometer
Operation Manual
Data Storage
In data storage mode (with new data in HOLD state), press SET, data flashes 3 times and is saved in current data
group, then the screen will display the data of next group. If no data has been saved in the group, ‘- - - -’ appears. You
can short press MODE to return to view the previous stored data.
Delete Data
In data storage mode, long press SET for 5s to delete all data (99 groups).
Scheduled Measurement
Enable this function to measure at a preset time (in 24 hours format). The thermometer will turn on automatically to
perform the measurement and save the record at preset time.
General measurement mode: Long press MODE for 3s to enter the scheduled measurement ON/OFF setup interface (as
shown below), use LOG or MODE button to switch between ON/OFF. Thermometer will exit the setup after 5 seconds of
no operation.
Scheduled Measurement Time Setup
In the scheduled measurement ON/OFF setup interface, short press SET to enter the scheduled measurement time setup
interface (as shown below), press LOG/MODE to set the hour, then short press SET and use LOG/MODE to set the minutes.
Monitoring Measurement
Enable this function to setup the monitoring measurement at a preset interval (1 min-24h). The Thermometer will
automatically turn on to measure and record a measurement at every interval.
In the scheduled measurement time setup interface, short press SET to enter the monitoring measurement setup
interface (as shown below), press LOG or MODE button to switch between ON/OFF. Thermometer will exit the setup
after 5 seconds without any operation.
Monitoring Measurement Time Setup
In the monitoring measurement ON/OFF setup interface, short press SET to enter the monitoring measurement time
setup interface (as shown below), press LOG/MODE to set the hour, then short press SET and press LOG/MODE to set
the minutes.
Protection Function
Without protection function, the thermometer will always be on during locked measurement mode, even when
trigger is enabled by accident. When protection function is enabled, the thermometer will stop the measurement and
shut down when there is no button operation for 10 minutes.
In the monitoring measurement lime setup interface, short press SET to enter the protection mode ON/OFF setup
interface (as shown below), use LOG or MODE button to switch between ON/OFF. Thermometer will exit the setup
after 5 seconds without any operation.
System Time Setup
Please set the system time before the scheduled measurement and monitoring measurement. This thermometer
clock is displayed in 24-hour time format.
In the protection mode ON/OFF setup interface, short press SET to enter the system time setup interface (as shown
below), press LOG/MODE to increase/decrease the relevant value, and short press SET to set the year-month-date-
hour-minute accordingly.
Thermometer will exit the setup after 5 seconds of no operation.
Notes:
Enter the scheduled measurement/monitoring measurement/protection function/system time setting modes
The records will be saved from the 000 position when they are stored in memory. After all 99 positions are
occupied, the recording will return to 000 again and overwrite the original data.
When this function is turned on and the thermometer is in the SCAN or HOLD states, “Auto” or “Interval” will be
displayed.
When the thermometer restarts, the system time and the measurement settings will be restored to the default
values (it needs to be reset), but the recording memory will be still saved.
It is not recommended to enable the scheduled measurement and monitoring measurement at the same time, as
their measurement records all start from 000, and will overwrite the measurement data of each other.
In the HOLD state, press
MODE
button for more than 3s to enter the scheduled measurement mode; then press SET
to enter the following
setting interface:
1.
2.
3.
4.
In HOLD state, press MODE (>3s)
Scheduled measurement on/off (“Auto” and “LOG” blue characters appear)
Set the hour of scheduled measurement (hour characters flash)
Set the minutes of scheduled measurement (minute characters flash)
Monitoring measurement on/off (“Interval” and “LOG” blue characters appear)
Set the hour of the interval in monitoring measurement (hour characters flash)
Set the minutes of the interval in monitoring measurement (minute characters flash)
Protection function on/off (“Protect” blue characters appear)
Set the year of the system date (year characters flash)
Set the month of the system date (month characters flash)
Set the date of the system date (date characters flash)
Set the hour of the system time (hour characters flash)
Set the minutes of the system time (minute characters flash)
Save and exit the setup mode
Press SET
Finding Hot Point and Cold Point
Aim at target area with thermometer, then
move up and down slowly to sweep the whole
area until the hot point and cold point are
found.
D:S Ratio (Distance to spot ratio)
S increases as D increases (S represents 90% of energy in the
circle). The maximum D:S can be obtained when D=800mm
(32”) and S=40mm (1.6”).
Field of View
Ensure that the target is larger than S. The smaller the target
is, the closer the measurement distance should be. Optimum
result is obtained when diameter of the target is more than
2.0 times of S. The spot diameter is approximately equal to the
distance between the two laser points.
Emissivity
Emissivity characterization reflects the radiated energy by the material. Emissivity for most organic materials, paints or
oxidized surfaces are about 0.95. Total emissivity of selected metals and non-metals are listed in the following table.
Maintenance
Clean
Use clean compressed air to blow away falling particles.
Use a wet cotton swab to carefully wipe lens surface.
Use a wet sponge or a soft cloth to clean product exterior.
Battery Replacement
Install or replace 1604A 9V battery according to the picture on the right.
Metal
Ceramic
0.95
Clay
0.95
Concrete
0.95
Cloth
0.9
Plates
0.96
Plaster
0.8 - 0.95
Ice
0.98
Limestone
0.98
Paper
0.95
Plastics
0.95
Water
0.93
Soil
0.9 - 0.98
Wood
0.9 - 0.95
Aluminum
Oxidization
0.2 - 0.4
Hastelloy
Alloy
0.3 - 0.8
Iron (Forging)
Passivation
0.9
Molybdenum
Oxidization
0.2 - 0.6
Nickel
Oxidization
0.2 - 0.5
Platinum
Black
0.9
Zinc
Oxidization
0.1
A3003 Alloy
Oxidization
Rough
0.3
0.1 - 0.3
Brass
Burnishing
Oxidization
0.3
0.5
Inconel
Oxidization
Sand-Blasting
Electro Burnishing
0.7 - 0.95
0.3 - 0.6
0.15
Iron (Casting)
Oxidization
Non-Oxidization
Casting
0.6 - 0.95
0.2
0.2 - 0.3
Steel
Cold Rolling
Steel Plate Rubbing
Steel Plate Burnishing
0.7 - 0.9
0.4 - 0.6
0.1
Non-Metal
Asbestos
Asphalt
Basalt
0.95
0.95
0.7
Glass
Convex Glass
Smooth Glass
Lead-Boron Glass
0.76 - 0.8
0.92 - 0.94
0.78 - 0.82
Copper
Oxidization
Electric Terminal Board
0.4 - 0.8
0.6
Iron
Oxidization
Rusting
0.5 - 0.9
0.5 - 0.7
Lead
Rough
Oxidization
0.4
0.2 - 0.6
Measured Surfaces
Emissivity
Long press
MODE for 3s.
Long press
SET for 5s.
