RKI Instruments GD-70D Series, Руководство по эксплуатации

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GD-70D
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1
Outline of the Product
1-1 Preface
Thank you for choosing our GD-70D Series gas detector head. Please verify 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. All users must read and understand the operating manual before using the
detector.
1-2
Product Purpose
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This is a fixed type gas detector head which detects gas leaks in semiconductor factories, etc.
•
The gas detector is a safety device, not an analyzer or densitometer which performs quantitative/qualitative
analysis/measurement for gases. You must understand the features of the detector before using it, so that
you can use it properly.
•
The detector detects abnormalities in the air caused by the presence of gas (or oxygen deficiency) with the
built-in gas sensor unit. The concentrations of detected gases are shown on the LCD.
•
The built-in pump in the detector draws gas to perform gas detection.
•
The detector has two-step gas alarm contact and fault alarm contact.
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The detector outputs the gas concentration in 4 - 20 mA or digital data.
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The communication method for each specification is as follows.
GD-70D 4 - 20 mA specification Analog transmission
GD-70D-NT NT specification 2-wire type DC power-line communication
GD-70D-EA EA specification Ethernet and analog transmission (4 - 20 mA)
GD-70D-LN LN specification LONWORKS