Harbor Freight Tools Thermometer Pocket Thermometer User Manual

Other Functions  
Operating Instructions  
For Item 93983 Non-Contact Pocket Thermometer  
Thank you for purchasing our non-contact infrared thermometer. Please remember to keep away from children  
and don’t use it for safety related applications. NOT FOR MEDICAL OR FOOD SAFETY USE.  
Power on and press the “Mode key” once for the Minimum (MIN)  
or twice for Maximum (MAX) modes. When the MIN or MAX icon  
flashes, press the “Meas. key” to confirm. Hold down the “Meas. key”,  
the minimum or maximum reading of measurement will be  
continuously updated.  
MIN / MAX  
Specifications:  
Temperature measurement range: -33 to +110°C (-27~230°F)  
Operating temperature range: -10 to +50°C (14 to +122°F)  
Resolution: 0.1°C /°F (for thermometer); 0.01sec (for Stopwatch)  
Accuracy (Tamb=23±3°C): +/-2% of reading or +/-2°C(4°F)  
Field of View: 1:1  
Power on and press the “Mode key” three times. When the LOCK  
icon flashes, press the “Meas. key” to confirm. This mode is  
particularly useful for continuous monitoring of temperatures for up to  
60 minutes or until the “Meas. key” is pressed.  
LOCK  
Emissivity: 0.95 fixed  
Power on and press the “Mode key” five times. When the °C icon  
flashes, press the “Meas. key” to change the scale to °F. The setting  
will be reserved even if power off.  
Auto real time clock and Room temperature while power off  
°C / °F Switch, MIN/MAX/LOCK, Stop Watch function  
Battery Life: 40 hours continuous use (auto power off after  
15seconds), The battery life is approximately 6 months.  
Battery: one CR2032 lithium cell battery  
°C / °F  
Battery replacement  
Battery is low and no more measurements are possible.  
Real time clock setting  
The battery should be replaced immediately with a CR2032 lithium cell. The battery is  
located under the twist cover at the rear of thermometer. Please remember to power  
off the unit before replacing the battery.  
1
Power on: Press the “Meas. key”.  
2
Press the “Mode key” six times and the “Set” icon starts to  
flash, which indicates the setting screen.  
Press the “Meas. key” to make the “24” icon flash, which  
indicates the 12/24-hour setting screen.  
3
A malfunction may occur if the power is on when the battery is replaced. If a malfunction occurs, restart  
the device. Keep the battery away from children.  
(12/24-hour setting screen)  
Press the “Meas. key” again to set 12/24-hour Format from  
24-hour to 12-hour.  
Important notes  
4
5
Press the “Mode key” to move the flashing in the sequence shown below to select other settings.  
Hour Minutes  
While the hour, minutes setting is flashing, use “Meas. key” to change it. Press “Mode key” when  
complete.  
Storage & Cleaning: The sensor lens should be kept clean at all times and stored at room temperature.  
1. Use only a soft cloth or cotton swab with water or medical alcohol when cleaning  
the lens. 2. Remember to allow the lens to fully dry before using.  
3. The thermometer should be stored at –20 to +65 oC (-4 to 149 oF).  
EMC/RFI: Readings may be affected if the unit is operated within radio frequency electromagnetic field  
strength of approximately 3 volts per meter, but the performance of the instrument will not be  
permanently affected.  
Use of the thermometer  
1
2
3
Always make sure the probe is clean without any damage.  
Power on: Press the “Meas. key”.  
Temperature taking: When you press the “Meas. key”, you  
will get the temperature immediately. If you hold down the  
Troubleshooting  
(Power off)  
(Power on)  
“Meas. key”, the reading of measurement will be continuously updated.  
Note: The Distance:Spot is 1:1. Please make sure the target area is within the field of view.  
information.  
‘Hi’ or ’Lo’ is displayed when the temperature being measured is outside of the  
range of the instrument, ‘Hi’ when higher than +110oC (230°F) and ‘Lo’ when  
lower than –33 oC (-27°F). Please select target within specifications. If  
a malfunction still exists, please contact the nearest retailer.  
4
Power off: Device will automatically power off if left idle for more than 15sec to extend battery life.  
‘Er2’ is displayed when the thermometer is exposed to rapid changes in the  
ambient temperature. ‘Er3’ is displayed when the ambient temperature  
exceeds –10 oC (14°F) or 50oC (122°F). The thermometer should be  
allowed plenty of time (minimum 30 minutes) to stabilize to the  
working/room temperature.  
Use of the Stop Watch  
1
Power on: Press the “Meas. key”.  
2
Press the “Mode key” four times and the “count” icon starts  
to flash.  
Min:Sec = 00:3.36  
(resolution=0.01sec)  
3
4
For start or stop counting, press the “Meas. key”.  
For reset counting, press the “Mode key”.  
Press “Mode key” to enter the thermometer function.  
For all other error messages it is necessary to reset the thermometer. To reset the  
thermometer, wait for the instrument power off, remove the battery and wait for a  
minimum of one minute, reinsert the battery and turn on. If the error message remains  
please contact a qualified service technician.  
3491 Mission Oaks Blvd., Camarillo, CA 93011  
Visit our Web site at: http://www.harborfreight.com  
A new way to measure temperature  
 

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