Benetech GM550 - User Manual

MODEL: GM550
Infrared thermometer
Instruction manual
A. Introduction
This infrared thermometer is used for
measuring the temperature of the object's
surface, which is applicable for various hot,
hazardous or hard to reach objects without
contact safely and quickly.
This unit consist of Optics, Temperature
Sensor Signal amplifier, Processing circuit and
LCD Display. The Optics collected the infrared
energy emitted by object and focus onto the
Sensor. Then the sensor translates the energy
into an electricity signal. This signal will be
turned out to be digital shown on the LCD after
the signal amplifier and processing circuit.
B. Warning & Cautions
1. Warning:
To avoid the potential situation may cause harm
or damage to people, please pay attention to
the following items:
1) Before you use this unit, check on the
plastic housing carefully. If there is any
damage, do not use it
2) Do not point laser directly at eye or
indirectly off reflective surfaces.
3) Do not use this unit in the environment of
explosive gas, steam or dusty.
2. Caution:
To avoid the damage of the unit or the target,
please protect from the following situations:
1) EMF (electro-magnetic fields) from arc
welders, or induction heaters.
2) Thermal shock caused by high temperature
changes allow 30 minutes for unit to
stabilize before use.
3) Do not leave the unit on or near objects of
high temperature
C. Distance to Spot size
1) When take measurement, pay attention to
the D stance to Spot Size. As the Distance (D)
from the target surface increases, the spot
size (S) of the area measured by the unit
becomes larger. The Distance to Spot size of
the unit is 12:1
***This unit is equipped with a laser, which is
used for aiming.
2) Field of view: Make sure the target is larger
than the unit's spot size. The smaller the
target the closer measure distance. When
accuracy is critical, make sure the ta get is at
least twice as large as the spot size.
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Summary

Introduction

Safety Warnings and Cautions

Warnings

Critical safety points to avoid harm or damage to people during use. Do not point laser at eyes or in explosive environments.

Cautions

Precautions to prevent damage to the unit or the target being measured, like avoiding EMF.

Distance to Spot Size

Understanding D:S Ratio

Explains the 12:1 ratio of distance to spot size for accurate measurement.

Field of View Guidance

Advises ensuring the target is larger than the spot size for precise readings.

Emissivity

Operation and Usage

Operating the Unit

Step-by-step instructions for turning on and using the thermometer.

Locating a Hot Spot

Guidance on how to scan an area to find a hot spot using the thermometer.

LCD Display and Buttons

LCD Display Overview

Identification of icons and elements displayed on the unit's LCD screen.

Button Functions

Explanation of the purpose and operation of each button on the device.

Maintenance and Specifications

Lens Cleaning

Instructions for cleaning the thermometer's optical lens.

Case Cleaning

Guidelines for cleaning the exterior casing of the unit.

Technical Specifications

Benetech GM550 Specifications

General

Brand	Benetech
Model	GM550
Category	Thermometer
Language	English