HTI HT-80A - User Manual

Sound Level Meter
1. Safety information
Read the following safety information carefully before
attempting to operate or service the meter.
Use the meter only as specified in this manual; otherwise,
the protection provided by the meter may be impaired.
● Environment conditions
1 Altitude up to 2000 meters
2 Relatively humidity 90% max.
3 Operation Ambient 0~40°C
● Maintenance & Clearing
1 Repairs or servicing not covered in this manual should
only be performed by qualified personnel.
2 Periodically wipe the case with a dry cloth. Do not use
abrasives or solvents on this instruments.
II. General Description
Thank you for using our Sound Level Meter. To ensure that
you can get the most from it, we recommend that you read
and follow the manual carefully before use.
This Sound Level Meter has been designed to meet the
measurement requirements of safety Engineers, Health,
Industrial safety offices and sound quality control in
various environments.
● Ranges from 30dB to 130dB at frequencies between
31.5Hz and 8 KHz.
● Display with 0.1dB steps on a 3 digits LCD.
● With the equivalent weighted sound pressure levels,.A
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HT-80A

HTI HT-80A Specifications

General

Distance to Spot Ratio	12:1
Power Supply (Air Velocity)	9V battery
Temperature Range	-50°C to 800°C (-58°F to 1472°F)
Resolution	0.1°C (0.1°F)
Emissivity	0.10～1.00 Adjustable
Response Time	500 ms
Spectral Response	8 to 14 μm
Resolution (Air Velocity)	0.1m/s
Operating Temperature	0°C to 40°C
Storage Temperature	60°C
Battery Life	About 12 hours (continuous use)

Summary

Safety Information

Environment Conditions

Specifies altitude, humidity, and ambient temperature limits for operation.

Maintenance and Cleaning

Details requirements for repairs, servicing, and cleaning of the instrument.

General Description

Specifications

Name and Functions

Measurement Preparation

Battery Loading and Replacement

Instructions for inserting and replacing the 9V battery, including low-battery indication.

Operating Precautions

Windscreen Usage

Advises using protective accessories at wind speeds over 10m/sec to prevent noise.

Accuracy and Reflection

Recommends using an extension cable for accurate measurements by separating the microphone.

Calibration

Emphasizes calibrating the instrument before use after long periods or in adverse environments.

Measurement

Battery Installation and Measurement

Guide to installing battery and positioning the microphone for sound pressure level display.

Max;Min and Hold Functions

Explains how to use MAX(maximum) mode and HOLD (data hold) function for readings.

Powering Off

Instructions to turn off the instrument and remove the battery when not in use.