UNI-T UTi690A Professional Thermal Imager User Manual

Model: UTi690A

Brand: UNI-T

Introduction

This document is the user manual for the UNI-T UTi690A Professional Thermal Imager. It provides comprehensive instructions on how to use, maintain, and troubleshoot the device.

The device is a handheld, red-colored thermal imager with a display screen and control buttons.

Key Features and Specifications

The UTi690A offers advanced thermal imaging capabilities for various applications.

Specifications Summary

Feature	Specification
Sensor Type	Uncooled infrared focal plane thermal imaging sensor
Pixel Size	17µm
Infrared Spectrum Bandwidth	8~14µm
Thermal Imaging Pixels	120 x 90 (10800 pixels)
Thermal Sensitivity (NETD)	<60mK
Field of View (FOV)	50°(H) x 38°(V)
Spatial Resolution (IFOV)	7.6 mrad
Frame Rate	<25Hz
Minimum Imaging Distance	0.1m
Focus	Focus-free
Temperature Range	-20°C to 400°C (-4°F to 752°F)
Accuracy	±2°C or ±2% (whichever is greater)
Measurement Units	°C / °F
Display	2.4" TFT LCD, 320 x 240 resolution
Storage	Micro SD Card
Battery	3.7V/2600mAh Li-ion, >9 hours operating time
Connectivity	Type-C USB
IP Rating	IP54
Drop Proof	2m
Dimensions	197 x 72 x 60 mm
Weight	310g
Certifications	CE, UKCA, RoHS

Device Structure

The UTi690A thermal imager consists of the following main components:

Upper housing
Interface protection cover
Lower housing
USB Type-C interface
SD card slot
Bracket screw hole
Laser emission aperture
LED light
Infrared camera lens
Image capture/trigger
LCD display
Control buttons: OK, Up, Power, Down

The LCD display shows real-time thermal imaging data, including center point temperature, highest/lowest temperatures, date, time, and battery status.

Operation Guide

Power On/Off

Power On: Long press the power button for 3 seconds when the device is off. Short press for 1 second when in suspend mode.
Power Off: Long press the power button for 8 seconds.
Suspend Mode: Short press the power button for 1 second when the device is on.

Menu Navigation

Short press the OK button from the main interface to access the menu. Use the Up/Down buttons to navigate and OK to select.

Menu options include:

Image View: Browse, view, and delete saved thermal images.
Screen Display: Customize display settings.
HI/LO Alert: Set temperature alerts and audible alarms.
LED light: Turn the built-in flashlight on/off.
Palette: Select different color schemes for thermal imaging (e.g., Iron, White Hot, Black Hot).
Setting: Access various device settings.

Key Settings

Language: Switch between English and Chinese.
Temperature Unit: Select Celsius (°C) or Fahrenheit (°F).
Emissivity: Adjust emissivity for accurate temperature readings based on material (default 0.95). A table of common emissivity values is provided in the Appendix.
Laser: Activate the laser pointer for targeting.
Time & Date: Set the device's time and date.
Brightness: Adjust the LCD screen brightness (Low, Middle, High).
Auto Power Off: Configure automatic shutdown after a period of inactivity (5, 10, 30 minutes, or Off).
Auto Save: Enable or disable automatic saving of captured images.
Format SD: Format the Micro SD card.
Device Info: View model, firmware version, storage capacity.
Factory Reset: Restore the device to its default settings.

Maintenance and Safety

Maintenance

Clean the device's outer shell with a damp cloth or mild soap solution. Avoid using abrasive cleaners, isopropyl alcohol, or solvents.

Safety Instructions

Read the manual carefully before use.
Do not use in flammable, explosive, steamy, humid, or corrosive environments.
Do not operate if the device is damaged or has been modified.
Ensure correct emissivity settings for accurate temperature measurements.
Avoid taking measurements while the device is charging, as this can affect accuracy.

Appendix: Common Emissivity Values

Accurate temperature readings depend on correct emissivity settings. Below are emissivity values for common materials:

Material	Emissivity	Material	Emissivity
Wood	0.85	Black paper	0.86
Water	0.96	Polycarbonate	0.8
Brick	0.75	Concrete	0.97
Stainless steel	0.14	Copper oxide	0.78
Adhesive tape	0.96	Cast iron	0.81
Aluminum plate	0.09	Rust	0.8
Copper plate	0.06	Gypsum	0.75
Black aluminum	0.95	Paint	0.9
Human skin	0.98	Rubber	0.95
Asphalt	0.96	Soil	0.93
PVC plastic	0.93

About the Manufacturer

UNI-TREND TECHNOLOGY (CHINA) CO., LTD.

Address: No. 6, Gong Ye Bei 1st Road, Songshan Lake National High-Tech Industrial Development Zone, Dongguan City, Guangdong Province, China

Website: http://www.uni-trend.com.cn

	UNI-T UTi384J/UTi640J Professional Enhanced Thermal Camera Explore the UNI-T UTi384J and UTi640J, professional enhanced thermal cameras designed for industrial applications. These cameras feature high-sensitivity infrared detectors, 13MP digital cameras, and advanced functions for precise thermal analysis and inspection.
	UNI-T UTi260E Professional Thermal Imager User Manual Comprehensive user manual for the UNI-T UTi260E Professional Thermal Imager, detailing its features, specifications, operation, safety guidelines, and maintenance procedures.
	UNI-T UTi720A Professional Thermal Imaging Camera User Manual User manual for the UNI-T UTi720A professional thermal imaging camera, covering specifications, instrument description, LCD indicators, power, measurements, palettes, temperature points, settings, USB communication, SD card usage, charging, maintenance, safety guidelines, and emissivity.
	UNI-T UTi32 Thermal Imager User Manual User manual for the UNI-T UTi32 Thermal Imager, covering technical specifications, product structure, operation, settings, and safety instructions.
	UNI-T UTi120P Compact Thermal Imager User Manual User manual for the UNI-T UTi120P Compact Thermal Imager, covering specifications, structure, display, operation, settings, maintenance, and safety instructions.
	UNI-T UTi160/320 Series Thermal Imagers - Specifications & Features Detailed specifications and features for the UNI-T UTi160G, UTi160V, and UTi320V thermal imagers, including temperature range, resolution, and general characteristics.
	UNI-T UTi165K Professional Thermal Imager User Manual Comprehensive user manual for the UNI-T UTi165K Professional Thermal Imager, detailing its features, operation, safety guidelines, specifications, and maintenance. Includes instructions on image capture, viewing, settings, and connectivity.
	UNI-T UTi85A Professional Thermal Imager User Manual User manual for the UNI-T UTi85A Professional Thermal Imager, detailing its features, operation, safety guidelines, specifications, and maintenance.