E&J 6110.4ZL manual Chapter, Introduction

CHAPTER 1

INTRODUCTION

Everest Interscience, Inc., offers the most sophisticated non-contact infrared thermometers on the market today. The new AGRI-THERM II Handheld Differential Infrared Thermometer (Model 6110.4ZL) is the culmination of over thirty-eight years of research and development by our founder and President. These are revolutionary handheld infrared thermometers, as they can be focused in the field or lab using our Vario-Zooom(Patent Pending) variable focusing system. And they incorporate our TTL (Through-The-Lens) Intra-Optical Light Sighting System (Patent No.

4,494,881).

An infrared thermometer measures the temperature of a target surface by focusing a spot on the target through an optical field-of-view (telescope) onto a temperature-sensitive detector. Infrared radiation is transmitted through the optics and impinges on the infrared detector, heating it slightly.

A major shortcoming of infrared thermometers is that the infrared “light” (radiation) is invisible to the human eye. Therefore, the position and physical characteristics of the spot being measured, such as its location, shape, size, surface texture, etc., cannot be ascertained by the operator. It is very important for the operator to know where all parts of the target spot are located, because, if any part of the spot is off the edge of the target surface, serious reading errors will occur. The Everest TTL (Through-The-Lens) Intra- Optical Light Sighting System (Patent No. 4,494,881) solves this problem as explained in Chapter 3 of this manual.

The Model 6110.4ZL Portable Infrared Thermometers takes readings in a fraction of a second over a temperature range of -40ºC to 100ºC or -40 to 200ºF with 0.1° resolution.

The AGRI-THERM II Differential (Patent No. 4,301,682) Handheld Infrared Thermometer is light-weight, weighing less than two pounds. It is powered by rechargeable nickel-cadmium batteries and has a standard output of 10.0mV/ºC or °F.

We are pleased that you chose an Everest infrared surface thermometer. We are positive that you will be pleased with the versatility, dependability and reliability that have been engineered into these highly sophisticated infrared thermometers.

If you have questions about a particular application, or if you have difficulty with any aspect of the operation or functioning of your new infrared thermometer, please don’t hesitate to contact us. Our telephone numbers and addresses are listed on the front cover of this manual.

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