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Summary of Contents for Riken Keiki SD-1DRI-AS
- Page 1 PT2E-2117 Smart transmitter/Gas Detector Head SD-1DRI-AS Operating Manual (PT2E-196) (PT2-196)
- Page 2 Operating Precautions This detector is a gas detector that detects combustible gases, 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 Outline of the Product ......................2 1-1. Preface ..........................2 1-2. Purpose of use ........................2 1-3. Definition of DANGER, WARNING, CAUTION, and NOTE ..........3 1-4. Method of confirmation for Standards and Explosion proof specification ......3 2 Important Notices on Safety....................4 2-1. -
Page 4: Outline Of The Product
Outline of the Product 1-1. Preface Thank you for choosing our smart transmitter/gas detector head SD-1DRI-AS. 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. -
Page 13: Product Components
3 Product Components 3-2. Names and functions for each part Name Function Gas detector Detects a gas (applicable detector head: SD-1DRI). head External cable A port to draw a power and signal cables for the gas inlet detector head. Adjusts the amount of compressed air after reducing Needle valve pressure. -
Page 21: How To Use
4 How to Use 4-5. 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 of core CVV 1.25mm CVV 2mm CVVS 1.25mm... -
Page 33: Operations And Functions
6 Operations and Functions 6-1. Gas alarm activation Operations and Functions 6-1. Gas alarm activation Gas alarm: Activated when the concentration of detected gas reaches or exceeds the alarm setpoint value. <<Auto-Reset>> NOTE The alarm setpoint is factory-set. Although the alarm delay time (standard: 2 seconds) works in the detector to prevent a false activation, it can be cancelled if not needed. -
Page 34: Fault Alarm Activation
6 Operations and Functions 6-2. Fault alarm activation <Response to Gas Alarm> A gas concentration value exceeds the alarm setpoint When a gas alarm is triggered, take actions in accordance with your management rules of gas alarm. Normally, take the following actions. ... -
Page 37: Maintenance
7 Maintenance 7-1. Maintenance intervals and items Maintenance This is an important instrument for the purpose of safety. To maintain the performance of the detector and improve the reliability of safety, perform a regular maintenance. 7-1. Maintenance intervals and items ... - Page 38 7 Maintenance 7-1. Maintenance intervals and items Main Services Power Supply Checks the power supply voltage. Check Verifies that the power lamp lights up. (Verifies that relevant points can be identified on the system.) (When a UPS (uninterruptible power system) is used, checks the operation with the UPS (uninterruptible power system).) Concentration Verifies that the concentration display value is zero by using the zero gas.
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Page 49: Parts Replacement
After replacements having need of operation check by professional service engineers. To maintain the safety operation of the detector, please use our maintenance service. Request RIKEN KEIKI for it. NOTE The above replacement intervals are recommendation only. The intervals may change depending on the operating conditions. -
Page 51: Troubleshooting
9 Troubleshooting Troubleshooting The troubleshooting does not explain the causes of all the malfunctions which occur on the detector. This simply helps to find the causes of malfunctions which frequently occur. If the detector shows a symptom which is not explained in this manual, or still has malfunctions even though remedial actions are taken, please contact our overseas sales department or local representatives. - Page 52 9 Troubleshooting <Abnormalities of Readings> Symptoms Causes Actions Drifting of sensor Perform the zero adjustment. output Disturbances by interference gases, such as solvents, Presence of cannot be eliminated completely. For information on interference gas actions, such as removal filter, please contact RIKEN The reading rises KEIKI.
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Page 53: Product Specifications
10 Product Specifications 10-1. List of specifications Product Specifications 10-1. List of specifications <ATEX/IECEx Specifications> Detection principle Non-dispersive infrared absorption type Detectable gas Combustible gas / Toxic gas Applicable gas detector head SD-1DRI Concentration display Seven-segment LED (four-digit) Detection range Depend on Detectable gas Display resolution Depend on Detectable gas... - Page 54 10 Product Specifications 10-1. List of specifications Outline Drawings 【Cable gland<G3/4>】 【Adapter A<NPT1/2>】 - 52 -...
- Page 55 10 Product Specifications 10-1. List of specifications Outline Drawings 【Adapter B<NPT3/4>】 - 53 -...
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Page 56: Detection Principle
10 Product Specifications 10-1. List of specifications <TIIS Specifications> Detection principle Non-dispersive infrared absorption type Detectable gas Combustible gas / Toxic gas Applicable gas detector head SD-1DRI Concentration display Seven-segment LED (four-digit) Detection range Depend on Detectable gas Display resolution Depend on Detectable gas Detection method Aspirator suction type... - Page 57 10 Product Specifications 10-1. List of specifications Outline Drawings - 55 -...
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Page 59: Definition Of Terms
11 Definition of Terms Definition of Terms Non-dispersive This is a principle of the sensor installed in the detector head. infrared type See "10-2. Detection principle" for details. Output from the detector head fluctuates for a while after turning on the power. Initial clear This is a function to prevent triggering alarm during that time.
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