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Summary of Contents for Riken Keiki SD-1DRI
- Page 1 PT2E-2981 Smart transmitter/Gas Detector Head SD-1DRI （TYPE MED EX） Operating Manual (PT2E-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> Operating Precautions ......................2 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 Important Notices on Safety ..................... -
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(TYPE MED EX). 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 15: How To Use
4 How to Use 4-3. Precautions for system designing Take appropriate measures in accordance with the importance of the facilities and the environment. Provide protection by a lightning arrester (cable safety retainer). Protection against (Although inductive lightning surge can be transmitted through the cable, it is lightning prevented by installing a lightning arrester before the field devices and central processing equipment. -
Page 30: Operations And Functions
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 33: 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 34 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...
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Page 45: Gas Calibration Method
7 Maintenance 7-3. Gas calibration method NOTE If the span adjustment failed since the reading was significantly fluctuated from the introduced gas concentration, it returns to 2-2 after FAIL rather than PASS is displayed . In this case, the span adjustment has not been completed. -
Page 47: 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 49: Troubleshooting
9 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 50 9 Troubleshooting 9 Troubleshooting <Abnormalities of Readings> Symptoms Causes Actions Drifting of sensor Perform the zero adjustment. output Presence of Interference gas test including solvents are identified, interference gas and be treated properly. The reading rises A very small amount of the gas to be detected may be (drops) and it remains leaking (slow leak).
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Page 51: Product Specifications
10 Product Specifications 10-1. List of specifications Product Specifications 10-1. List of specifications Model SD-1DRI Type TYPE MED EX Detection principle Non-dispersive infrared absorption method Detection gas Combustible gas/Toxic gas Gas concentration display LED(4digits・7segments) Detection range Depend on detection gas... -
Page 55: Definition Of Terms
11 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. - Page 56 Revision History Edition Revision Date issued First edition 11/10/2020 Safety information, Declaration of Conformity P53 Added CH4 0-100vol% to the list of gases to be detected 1/5/2021 (MED specification) P55 Added “vol%” to the definition of terms...
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