Related Manuals for Riken Keiki GD-A80D-AS Series
Summary of Contents for Riken Keiki GD-A80D-AS Series
- Page 1 PT2E-1926 Fixed Combustible/ Toxic Gas Detector Head GD-A80D-AS Series GD-A80D-AS GD-A80DV-AS GD-A80DS-AS GD-A80DN-AS Operating Manual...
- Page 2 Operating Precautions This detector is a gas detector that detects combustible gases or toxic gases in the air and triggers a gas alarm. The gas detector is a safety unit, not an analyzer or densitometer which performs quantitative/qualitative analysis/measurement for gases. Please fully understand the following points before using it, so that it can be used properly.
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Page 3: Table Of Contents
Contents 1. Outline of the Product ............................4 1-1. Preface ................................4 1-2. Purpose of use .............................. 4 1-3. Definition of DANGER, WARNING, CAUTION and NOTE ................4 1-4. Method of confirmation for standards and explosion proof specification ............5 2. -
Page 4: Outline Of The Product
Outline of the Product 1-1. Preface Thank you for choosing our fixed combustible/toxic gas detector head GD-A80D-AS Series. 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 gas detector properly. -
Page 8: Important Notices On Safety
Observe the followings to maintain an explosion-proof system. Outline of the unit ･ This unit is a compressed air-driven aspirator suction type gas detector head (GD-A80D-AS Series) used in connection with the indication alarm to detect target gas. ･ This unit is designed to have a gas detector head (GD-A80D Series) incorporated in the sampling device. -
Page 9: Safety Information
2. Important Notices on Safety 2-4. Safety information <TIIS Specifications> Technical Data (Explosion-proof enclosures) Flame-proof enclosures (Explosion-proof class) Ex d IIC T4 (Ambient temperature)* -40 - +53ºC (Rating) GD-A80D-AS DC3. 0V 430mA or DC5. 0V 200mA ･ Detecting element GD-A80DV-AS DC6. -
Page 18: How To Use
4. How to Use 4-6. How to wire NOTE The following table shows an example of overall outer diameters of cables. Use them for reference. The overall outer diameters must be checked because they somewhat vary between manufacturers. Number CVV 1. -
Page 25: Flow Rate Adjustment
Our service engineers have expertise and knowledge on the dedicated tools used for services, along with other products. To maintain the safety operation of the unit, please use our maintenance service. • Typical maintenance services are listed as follows. For more information, please contact RIKEN KEIKI. Main services Power supply Checks the power supply voltage. -
Page 29: Replacement Parts
PP/Bs/SUS types * The operation must be checked after replacement by our service engineer. For the stable operation of the unit and safety, ask RIKEN KEIKI to take care of replacement of the part. Request RIKEN KEIKI for operation check. -
Page 31: Troubleshooting
Disturbances by interference gases, such as solvents, Presence of cannot be eliminated completely. For information on actions, interference gas such as removal filter, please contact RIKEN KEIKI. The reading rises (drops) and it remains A very small amount of the gas to be detected may be leaking (slow leak). -
Page 32: Product Specifications
9. Product Specifications 9-1. Standard specifications Product Specifications 9-1. Standard specifications <ATEX/IECEx Specifications> Model GD-A80D-AS GD-A80DV-AS GD-A80DS-AS GD-A80DN-AS Catalytic combustion Detection Hot-wire Semiconductor Thermal conductivity principle semiconductor new ceramic Gas to be Combust ble gases in Combustible/toxic gases Combustible/toxic gases Combustible gases in the detected the air... -
Page 33: Detection Principle
9. Product Specifications 9-1. Standard specifications <TIIS Specifications> Model GD-A80D-AS GD-A80DV-AS GD-A80DS-AS GD-A80DN-AS Catalytic Detection Hot-wire combustion or Semiconductor Thermal conductivity principle semiconductor new ceramic Gas to be Combustible gases Combustible/toxic Combustible/toxic Combustible gases detected in the air gases in the air gases in the air in the air/inert gas Applicable gas... -
Page 37: Definition Of Terms
10. Definition of Terms Definition of Terms Catalytic This is a principle of the sensor installed in GD-A80D-AS. combustion type See "9-2. Detection principle" for details. This is a principle of the sensor installed in GD-A80D-AS. New ceramic See "9-2. Detection principle" for details. This is a principle of the sensor installed in GD-A80DV-AS.
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