1 Outline of the Product
1-1. Preface
- 3 -
1
1
Outline of the Product
1-1. Preface
Thank you for choosing our 2-wire gas detector head GD-F88Di.
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.
When the detector 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 detector is a fixed type gas detector head which detects oxygen.
When the detector detects oxygen, it outputs a current according to the detected oxygen.
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 outputs gas concentration in 4 – 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.