TPI 381a User manual

F. MAINTENANCE
1. Clean the surface of the instrument and optical lens with a damp cloth.
2. Replace the 9 Volt battery when the low battery indicator appears on
the LCD.
G. TROUBLE SHOOTING
Symptom Probable Cause
Temperature seems inaccurate. •Dirty optical lens.
•Low battery.
•Instrument held too far away
from target increasing desired
target area.
• Target surface has poor
emissivity qualities.
•Laser sight out of alignment.
381a does not turn on. •Dead or low battery.
•Defective POWER ON switch.
•Broken batter connector.
Laser does not turn on. •Low battery.
•Broken connector to Laser.
H. WARRANTY
This product is warranted to the purchaser against defects in material and workmanship for three years from the
date of purchase.
Covered by Warranty: Repair parts and labor; or replacement of the product at company’s option. Normal trans-
portation charges to the purchaser are also covered.
Not Covered by Warranty: Damages to the product which are the result of abuse, improper use or maintenance are
not covered. Any other expense, consequential damages, incidental damages, or incidental expenses including dam-
ages to property are not covered. Transportation expenses to the company are not covered.
Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limita-
tions or exclusions may not apply to you.
To Obtain Warranty Performance: Include with the product: your name, address, phone number, written descrip-
tion of the problem and proof of purchase date. Carefully package and return to:
TPI, Inc. TPI, Ltd. TPI, Europe Ltd..
9615 SW Allen Blvd. 342 Bronte Rd. S., Unit 9 Longley House, East Park
Beaverton, OR 97005 Milton, Ontario L9T 5B7 Crawley
USA Canada West Sussex RH10 6AP
England
Implied Warranties: Any implied warranties including implied warranties of merchantability and fitness for a par-
ticular purpose, are limited in duration to three years from date of purchase. To the extent any provision of this war-
ranty is prohibited by federal or state law and cannot be preempted, it shall not be applicable. This warranty gives
you specific legal rights, and you may also have other rights which vary from state to state.
Combo non-contact /
contact thermometer 381a
TestProducts International, Inc.
Use standard K-type thermocouple probes with
sub mini input jack. Probes purchased separately
Test the TPI Advantage
Visit www.testproductsintl.com
•Contact and non-contact thermometer
•Maintain reading on display
•Laser sighting
•Backlit display
•9:1 distance to spot ratio
•0.1 degree resolution
•095 emissivity
•3 Year Limited Warranty

A. INTRODUCTION
1. Congratulations: Thank you for purchasing TPI products. The 381a is
easy to use and built to last. It is backed by a 3 year limited warranty.
2. Product Description: The 381a is a non-contact and contact tempera-
ture tester with laser sighting to confirm you target. It uses K-type ther-
mocouples with sub-mini connector for contact measurements.
B. SAFETY CONSIDERATIONS
1. Never point the laser beam at someone’s eyes or look directly into the
beam
2. Use caution when measuring a shiny surface so the laser does not
reflect back into your or someone else’s eyes.
3. Do not touch the lens to any foreign object.
4. Do not expose the unit to damp environments for extended periods of
time.
* Depends upon temperature probe range
C. TECHNICAL DATA
Distance to Spot Ratio 9 : 1
Temperature Non-contact: -4° to 572°F (-20° to 300°C)
Range Contact:* -148° to 2192°F (-100° to 1200°C)
IR Accuracy @ 23°C ± 5°F (3°C) below 32°F (0°C)
and 0.95 emissivity 32°F to 572°F (0°C to 300°C) ± 2% of rdg or ± 3.5°F (2°C)
whichever is greater
Contact Accuracy +(0.5% of reading + 3.5°F (2°C)
Emissivity 0.95
Laser Sighting Output <1mW, Wavelength 645-660nm, Class II Laser
°F or °C Selectable (slide switch in handle)
Contact or Non-contact Selectable (slide switch in handle)
Display Hold Yes
Response Time 500 millisecond
Spectral Response 7 - 14 um
Operating Temperature 32° to 120°F (0° to 150°C)
Battery Type 9 Volt
D. MEASUREMENT TECHNIQUES
Push Buttons
1. TRIGGER: Press and hold the trigger button on the 381a. The thermometer will
power up and the laser will be visible (unless in contact “K” mode). After
releasing the trigger, the thermometer will hold the last reading then automati-
cally turn off after 10 seconds. For extended measurement time simply hold the
trigger on and the termometer will stay in scan mode.
2. RECALL LAST READING: To recall the last reading before the unit powered off,
quickly press and release the trigger. The last reading will be displayed for an
additional 10 seconds.
3. IR/K The selector switch is located inside the battery compartment in the han-
dle. Simply swing open the two piece handle and position the slide switch. Set
to IR for non-contact measurements or set to K for contact measurements.
When set to K, a K-type probe must be connected to the K-type connector
located at the bottom right side of the handle. If a probe is not connected the
thermometer will display “open” when the trigger is pulled.
4. °F/°C: The selector switch is located inside the battery compartment in the
handle. Simply swing open the two piece handle and position the slide switch.
Temperature Measurement (Infrared)
CAUTION: LASER RADIATION - DO NOT STARE INTO BEAM.
OUTPUT <1Mw WAVELENGTH 645 - 660nm. CLASS II LASER PRODUCT.
1. Set the IR/K selector switch to IR. Turn the thermometer on by holding down
the trigger.
2. Line up the laser with the target and hold the front of the thermometer nine
inches from the target (spot size will be one inch at this distance).
3. Read the temperature on the LCD.
Temperature Measurement (Infrared)
1. Set the IR/K selector switch to K amd connect a K-type thermocouple probe to
the input jack located at the bottom right side of the handle.
2. Turn the thermometer on by holding down the trigger.
3. Touch the thermocouple to the item under test.
4. Read the temperature on the LCD.
E. ACCESSORIES
Item # Description
A009A ....................................9 Volt Alkaline Battery
A380 ......................................Soft Carrying Pouch for 380/381/382/383