Outline Of The Product; Preface; Purpose Of Use; Definition Of Danger, Warning, Caution, And Note - RKI Instruments SD-1GH Operating Manual

1-1. Preface

Thank you for choosing the SD-1GH. Please check that the model number of the product you purchased is
included in this manual's specifications.
This manual explains how to use the detector. It contains information required for using the detector
properly. All users must read and understand the operating manual to enhance their knowledge and
experience before using the detector.
Although the number of displayed digits varies depending on the detection range, this manual provides
explanation using a detection range from 0 to 100.0 as examples.

1-2. Purpose of Use

• This detector is a fixed-type gas detector head that detects combustible/toxic gases and activates an
alarm when the gas concentration rises above the setpoint.
• The 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 uses a built-in gas sensor to detect abnormalities in the air caused by presence of gases.
The concentration of detected gas is displayed on the seven-segment LED display.
• The detector has a built-in alarm contact that can be used either as a gas alarm, fault alarm, or common
(gas, fault) alarm.
• The detector outputs the gas concentration in 4 – 20 mA.
1-3. Definition of DANGER, WARNING, CAUTION, and
NOTE
DANGER
WARNING
CAUTION
NOTE
SD-1GH

Outline of the Product

This message indicates that improper handling may cause serious damage to
life, health, or assets.
This message indicates that improper handling may cause serious damage to
health or assets.
This message indicates that improper handling may cause minor damage to
health or assets.
This message indicates handling advice.
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