1 Outline of the Product
1-1. Preface
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1
Outline of the Product
1-1. Preface
Thank you for choosing our smart transmitter/gas detector head SD-1DRI-AS. Please check that the model
number of the product you purchased is included in the specifications on this manual.
This manual explains how to use the detector and its specifications. It contains information required for
using the detector properly. Not only the first-time users but also the users who have already used the
product must read and understand the operating manual to enhance the knowledge and experience before
using the detector.
The display digit vary according to a detection range. This manual provides explanation using a detection
range from 0 to 100.0 %LEL as examples (such as examples of LED display).
1-2. Purpose of use
The detector is a fixed type gas detector head that detects leak of combustible gases, toxic gases and that
performs the alarm activation when the gas concentration is over the setting value.
This detector is a safety unit, not an analyzer or densitometer which performs quantitative/qualitative
analysis/measurement for gases. Please fully understand the features of the detector before using it, so that
it can be used properly.
The detector detects abnormalities in the air caused by presence of gases or other reasons (leak) with the
built-in gas sensor. The concentrations of detected gases are displayed on the seven-segment LED.
The detector draws a gas by an aspirator using compressed air to perform gas detection.
The detector has a built-in alarm contact and can be used either as a gas alarm, fault alarm, or common
(gas, fault) alarm.
The detector outputs gas concentration in 4 – 20 mA.
Summary of Contents for SD-1DRI-AS
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Page 55: ...10 Product Specifications 10 1 List of specifications 53 Outline Drawings Adapter B NPT3 4 ...
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