Page 2
Operating Precautions This detector is an oxygen deficiency detector that detects oxygen in the air and triggers an oxygen deficiency alarm. The oxygen deficiency detector is a safety unit, not an analyzer or densitometer which performs quantitative/qualitative analysis/measurement for oxygen. Please fully understand the following points before using it, so that it can be used properly.
<Contents> 1 Outline of the Product ......................2 1-1. Preface ..........................2 1-2. Purpose of use ........................2 1-3. Definition of DANGER, WARNING, CAUTION and NOTE ..........2 1-4. Method of confirmation for Standards and Explosion proof specification ......3 2 Important Notices on Safety ....................
Outline of the Product 1-1. Preface Thank you for choosing our smart transmitter/gas detector head SD-1DOX-AS. This manual is Industrial Technology Research Institute specifications (hereinafter referred to as ITRI specifications). Please check that the model number of the product you purchased is included in the specifications on this manual.
1 Outline of the Product 1-4. Method of confirmation for Standards and Explosion proof specification 1-4. Method of confirmation for Standards and Explosion proof specification This instrument has some specification depends on standard and explosion proof certificate. Please confirm the detector specification before using. ITRI specifications name plate - 3 -...
3 Product Components 3-1. Main unit and standard accessories Product Components 3-1. Main unit and standard accessories <Main Unit> <Standard Accessories> Operating manual・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・・ one Dedicated handling lever (used for the wiring) ・・・・・・・ one Dedicated control key・・・・・・・・ The supplied quantity depends on the number of units to be delivered. 1 to 10 units 11 to 20 units 21 to 50 units...
3 Product Components 3-2. Names and functions for each part (6) Alarm lamp (7) Fault lamp (5) Power lamp (1) MENU/ESC key (3) ▲ key (8) Concentration value display (2) SET key (4) ▼ key Used to enter the maintenance mode. MENU/ESC key It is also used to cancel in a specific mode.
4 How to Use 4-5. Installation procedure NOTE ・Our company-specified grease : BARRIERTA JFE 552 (manufactured by NOK KLUBER) If you can not prepare the specified grease, use one that meets the following requirements. 1. Material does not harden due to deterioration 2.
6 Operations and Functions 6-1. Alarm activation Operations and Functions 6-1. Alarm activation Oxygen concentration alarm: Activated when the detected oxygen concentration reaches or exceeds the alarm setpoint value. <<Auto-Reset Operation>> 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.
After the detector is successfully returned from the fault, it restarts with the process normally performed right after it is turned on (initial clear). If the detector has problems and is repeatedly malfunctioning, contact RIKEN KEIKI immediately. <Display Operation> Fault Detail Display Display a message indicating the fault detail.
7 Maintenance 7-1. Maintenance intervals and items Maintenance The gas detector is an important instrument for the purpose of safety. To maintain the performance of the gas detector and improve the reliability of safety, perform a regular maintenance. 7-1. Maintenance intervals and items ...
Page 39
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.) Concentration Verifies that the concentration display value is zero (or 20.9 vol% on the oxygen deficiency Display Check...
Page 53
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.
9 Troubleshooting 8-3. Disposal of products <Abnormalities of Readings> Symptoms Causes Actions Drifting of sensor Perform the zero adjustment (or span adjustment). output A very small amount of the gas to be detected may be The reading rises (drops) leaking (slow leak). Because ignoring it may cause Slow leak and it remains so.
10 Product Specifications 10-1. List of specifications Product Specifications 10-1. List of specifications <ITRI/Oxygen Deficiency Alarm Specifications> Model SD-1DOX-AS Detection principle Galvanic cell method Detection gas Applicable gas detector head SD-1DOX Concentration display LED(4digits・7segments) Detection range 0 - 25vol% Detection method...
*1 In conformity to JIS T8201 2010(Oxygen deficiency indicator) When a half-union for gas IN side is changed, check also the external filter (IN/OUT diameter) carefully. <ITRI/Leak Alarm Specifications> Model SD-1DOX-AS Detection principle Galvanic cell method Detection gas Applicable gas detector head...
Page 57
10 Product Specifications 10-1. List of specifications <ITRI/Gas Monitoring Specifications> Model SD-1DOX-AS Detection principle Galvanic cell method Detection gas Concentration display LED(4digits・7segments) Detection range 0 - 5vol%/0 - 10vol%/0 - 25vol%/0 - 50vol%/0 - 100vol% Detection method Aspirator suction type Sampling condition Atmosphere equivalent (Compressed air:0.1 - 0.7MPa・Consumption Max.
Page 58
10 Product Specifications 10-1. List of specifications Outline Drawings - 56 -...
11 Definition of Terms Definition of Terms This is a principle of the sensor installed in the detector head. Galvanic cell 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 61
Revision history Rev. Amendment Issue data First issue October,25,2019 P3 Name plate, P7 Certificate No., P7,53,54,55 Explosion-proof class March,2,2020...
Need help?
Do you have a question about the SD-1DOX-AS and is the answer not in the manual?
Questions and answers