1. Outline of the Product
1-1. Preface
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1
1.
Outline of the Product
1-1. Preface
Thank you for choosing our 2-wire gas detector head GD-F88Ai.
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 head and its specifications. It contains information required
for using the detector head 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 head.
When the detector head is used in combination with an indicator/alarm unit, read also the operating
manual of the indicator/alarm unit.
1-2. Purpose of use
This product is a fixed type gas detector head which detects oxygen concentration in the air.
When the detector head detects oxygen, it outputs a current according to the gas concentration.
The indicator/alarm unit indicates the gas concentration and triggers an alarm if a preset concentration
level is exceeded.
The detector head is a safety unit, not an analyzer or densitometer which performs
quantitative/qualitative analysis/measurement.
Please fully understand the features of the detector head before using it, so that it can be used properly.
The detector head outputs oxygen concentration in 4 to 20 mA.
1-3. Definition of DANGER, WARNING, CAUTION and
NOTE
DANGER
This message indicates that improper handling may cause serious damage on life,
health or assets.
WARNING
This message indicates that improper handling may cause serious damage on
health or assets.
CAUTION
This message indicates that improper handling may cause minor damage on
health or assets.
NOTE
This message indicates advice on handling.
