UNI-T UT383 - User Manual

P/N:l10401105962X
UNI-T
UT383
Mini Light Meters
Operating Instruction
1. Introduction
UT383 is a stable, safe, reliable mini digital light meter,
widely used in lightening enterprises, agriculture and animal
husbandry, mining enterprises, laboratory, office, household,
street lights construction and others.
This operating manual includes relevant safety information
and warnings. Please read this manual carefully and observe
all the cautions strictly.
A Warning:
Before using the product, please read the operation safety
rules carefully.
2. Out of the Box
Open the packing box and take out the meter. Please check
carefully if any items are missing or damaged.
1. Main Unit-1
2. Blister --1
3. Operating manual-1
3. Operation Safety
1. P lease check the meter and the accessories before using
and beware of any damage or abnormal phenomenon. If
you find the case is damaged or the LCD shows nothing,
or you consider that the meter could not work properly
anymore, please stop using it.
2,Observe the operating instructions while measuring.
3. Do not open the meter at will or change internal wiring to
avoid damages to the meter.
4. W hen the LCD displays “ca”, replace the battery timely.
Remove the battery if the meter is not used for a long time.
5. D o not store or use the meter in high temperature, high
humidity, flammable, combustible, or strong electromagnetic
environment.
6. P lease use soft cloth and neutral detergent to clean the
case for maintenance. Do not use grinding agent and
solvent to avoid case corrosion and damaging the meter.
4. P r oduct Outlook
1. Illumination transducer
2. Meter case
3. LCD display
4. Function keys
® © © ©
5. D i s p l a y Interface
1
Maximum measurement
5
Foot candle
2
Minimum measurement
6
Lux
3
Data hold
7
Value*10 or value*100
4
Low battery
8
Illumination value
6. K ey Function and Setup
1. ON/OFF:
Short press once to start up; short press again to power
off.
Note: Product's auto power off feature can be disabled:
Press and hold “HOLD” and then press “ON/OFF” key to
enable/disable auto power off, LCD will display “APO OFF”
to indicate status.
2. LUX/FC:
Unit conversion key: Short press this key to select Lux or
Foot candles.
3. MAX/MIN:
Pressing this key can select maximum, minimum or normal
value measurement; select maximum and the meter will
always show the maximum reading; select minimum and
the meter will always show the minimum reading.
4. HOLD/BL:
HOLD: Short press this key to hold measurement; short
press this key again to exit data hold and continue normal
measurement.
BL: Long press this key to turn on backlight; long press
this key again to turn off backlight.

Summary

Introduction to UT383 Mini Light Meter

Checking Contents and Safety Precautions

Out of the Box Contents

Lists items included in the product packing box for user verification.

Operation Safety Guidelines

Provides essential safety rules for operating the meter to prevent damage or injury.

Product Outlook Identification

Identifies the main external components of the UT383 meter.

Display Interface and Key Functions

Display Interface Overview

Details the components and indicators shown on the meter's LCD display.

Device Power Control (ON;OFF)

Instructions for starting up and powering off the UT383 meter.

Unit Conversion (LUX;FC)

How to switch measurement units between Lux and Foot candles.

Max;Min Measurement Mode

Procedure for selecting maximum, minimum, or normal value readings.

Data Hold and Backlight Control

How to hold current readings and activate/deactivate the LCD backlight.

Technical Specifications and Maintenance

Illumination Measurement Specifications

Details range, resolution, and accuracy for illumination measurements.

General Product Type Specifications

Information on LCD display, overload indication, battery status, and sensor type.

Environmental Operating Specifications

Defines conditions for indoor use, altitude, safety, and operating temperature/humidity.

Electrical Performance Specifications

Covers accuracy, operating temperature, and humidity for electrical performance.

General Meter Maintenance

Guidelines for cleaning and servicing the meter to maintain accuracy and prevent damage.

Battery Installation and Replacement

Step-by-step instructions for installing and replacing the meter's batteries.

Overview

1. Function Description
2. Usage Features
3. Maintenance Features

The UT383 is a stable, safe, and reliable mini digital light meter designed for a wide range of applications. It is commonly used in lighting enterprises, agriculture, animal husbandry, mining operations, laboratories, offices, households, and for street light construction, among others. This device is engineered to provide accurate light measurements in a compact and user-friendly form factor.

Function Description

The primary function of the UT383 is to measure illumination. It features a clear LCD display that shows the illumination value, allowing users to easily read measurements. The meter can display values in both Lux and Foot-candles (FC), providing flexibility for different measurement standards. It also includes indicators for maximum and minimum measurements, data hold, and low battery status.

Usage Features

The UT383 is designed for ease of use with several convenient features:

• Simple Operation: The device is operated via a few function keys. A short press of the ON/OFF key powers the meter on or off.
• Unit Conversion: Users can easily switch between Lux and Foot-candle units by short-pressing the LUX/FC key, adapting to various measurement requirements.
• Measurement Modes: The MAX/MIN key allows users to select between maximum, minimum, or normal value measurement. In maximum mode, the meter continuously displays the highest reading, while in minimum mode, it shows the lowest reading.
• Data Hold: The HOLD/BL key enables users to freeze the current measurement on the display. A short press activates data hold, and another short press exits this mode, allowing for continuous measurement.
• Backlight: For use in dimly lit environments, the HOLD/BL key also controls the backlight. A long press turns the backlight on, and another long press turns it off, enhancing visibility of the display.
• Auto Power Off: To conserve battery life, the UT383 features an automatic power-off function that activates after 5 minutes of inactivity. This feature can be disabled by pressing and holding the "HOLD" key, then pressing the "ON/OFF" key. The LCD will display "APO OFF" to confirm the status change.
• Low Battery Indication: The meter provides a clear low battery prompt ("") on the LCD when the battery voltage drops, indicating that the batteries need to be replaced.
• Robust Design: The device is built to withstand minor impacts, capable of withstanding a fall from 1 meter height, making it suitable for various working environments.
• Illumination Transducer: The device incorporates an illumination transducer that accurately captures light levels.

Maintenance Features

Proper maintenance ensures the longevity and accuracy of the UT383.

• Battery Replacement: The meter operates on three AAA 1.5V batteries. The battery compartment is easily accessible for replacement when the low battery indicator appears.
• Cleaning: The case of the meter should be cleaned periodically with a soft cloth and a neutral detergent. It is crucial to avoid using abrasive agents or solvents, as these can corrode the case or damage the meter.
• Storage: To maintain optimal performance and extend the device's lifespan, it should not be stored or used in environments with high temperature, high humidity, or in the presence of flammable, combustible, or strong electromagnetic fields.
• Inspection: Before each use, it is recommended to inspect the meter and its accessories for any damage or abnormal phenomena. If the case is damaged, the LCD shows nothing, or the meter is not functioning properly, its use should be discontinued.
• Professional Service: Any maintenance or service beyond basic cleaning and battery replacement should be performed by professional personnel or a designated maintenance department to avoid affecting the device's accuracy or causing damage.
• Internal Wiring: Users are advised not to open the meter or alter its internal wiring, as this can lead to damage and compromise the device's functionality and accuracy.

UNI-T UT383 Specifications