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1 Outline of the Product

 

 

1-1. Preface 

 

 

- 2 - 

 

 
 
 
 

Outline of the Product 

 
 
 
 

1-1. Preface 

 
Thank you for choosing our smart transmitter/gas detector head SD-1DOX-AS(TYPE H). 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. Not only the first-time users but also the users who have already used the 
product must read and understand the operating manual to enhance the knowledge and experience before 
using the detector. 
This manual provides explanation using a detection range from 0 to 25.0 vol% as examples (such as 
examples of LED display). 
 
 

1-2. Purpose of use 

 

 

This detector is a fixed type gas detector head that detects oxygen and performs the alarm activation 
when the gas concentration is over the setting value. 
The detector is a safety unit, not an analyzer or densitometer which performs quantitative/qualitative 
analysis/measurement for gases. Please fully understand the features of the detector before using it, 
so that it can be used properly. 

 

The detector detects abnormalities in the air caused by presence of gases or other reasons (leak) with 
the built-in gas sensor. The concentrations of detected gases are displayed on the seven-segment 
LED. 

 

The detector draws a gas by an aspirator using compressed air to perform gas detection. 

 

The detector outputs gas concentration in 4 – 20 mA. 

 

The detector has HART communication function. 

 
 

1-3. Definition of DANGER, WARNING, CAUTION, and 

NOTE 

 

  DANGER

 

This message indicates that improper handling may cause serious damage on 
life, health or assets. 

          WARNING

 

This message indicates that improper handling may cause serious damage on 
health or assets. 

          CAUTION

 

This message indicates that improper handling may cause minor damage on 
health or assets. 

NOTE

 

This message indicates advice on handling. 

 

 

 

Summary of Contents for SD-1DOX-AS

Page 1: ...PT2E 2625 Smart Transmitter Gas Detector Head SD 1DOX AS TYPE H Operating Manual PT2E 179 PT2 179...

Page 2: ...addition it may be fluctuated by environmental temperature humidity etc changes in the installation site 2 The alarm must be set within a range where the performance of the detector can be ensured The...

Page 3: ...o wire 21 4 7 How to tube 25 5 How to Operate 26 5 1 Preparation for start up 26 5 2 Basic operating procedures 26 5 3 How to start the gas detector 27 5 4 Modes 28 5 5 User mode 29 5 6 Flow Rate Adju...

Page 4: ...s concentration is over the setting value The detector is a safety unit not an analyzer or densitometer which performs quantitative qualitative analysis measurement for gases Please fully understand t...

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Page 11: ...standard accessories Main Unit Standard Accessories Operating manual one Dedicated handling lever one Dedicated control key The supplied quantity depends on the number of units to be delivered 1 to 10...

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Page 14: ...o switch menus or change a value DOWN 5 Power lamp Power lamp Detection mode It lights up in green Maintenance mode It blinks in green 6 Alarm lamp Alarm lamp It lights up in red when the alarm setpoi...

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Page 19: ...ning is impossible the following protective measures can be taken Protection against lightning Take appropriate measures in accordance with the importance of the facilities and the environment Provide...

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Page 35: ...d if not needed Display Operation Oxygen Concentration Display In case of over the detection range Over Scale is displayed on the LED Power Indicator Lamp POWER Green During operation this lights up c...

Page 36: ...cess the gas leak point equipped with a protective gear to avoid dangers caused by possibly remaining gases and check whether gases remain or not by using a portable gas detector Check that the point...

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Page 39: ...as a safety unit Maintenance item Maintenance content Daily mainte nance Monthly mainte nance Regular mainte nance Power Supply Check Check that the power lamp lights up Concentration Display Check C...

Page 40: ...r to find abnormalities Checks the flow rate by using an external flow meter to verify the correctness of the flow rate indicator on the gas detector If the flow rate is incorrect performs the flow ra...

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Page 55: ...vide the rated voltage Take measures such as checking or adding the UPS power supply line filter and insulation transformer Cable abnormalities open circuit not connected short circuit Check the wirin...

Page 56: ...ently take appropriate measures to eliminate the noise Sudden change in the environment When the environment temperature etc changes suddenly the detector cannot adjust to it and is affected by it In...

Page 57: ...ition Less than 1vol against alarm preset point Alarm delay time 1 under an identical condition By anoxia alarm Alarm preset point 18vol Less than 5sec When introducing 10 11vol gas Without piping del...

Page 58: ...let Bs union for Cu pipe for O D 8 1 Compressed air inlet BS union for Cu pipe for O D 8 1 Initial clear Approx 25sec Operating temperature 10 40 non rapidly vary Operating humidity Less than 95 RH no...

Page 59: ...analog transmission digital transmission HART communication or Three wire analog transmission in common with power supply power supply signal common Specification of Transmission DC4 20mA linear load...

Page 60: ...o wire analog transmission digital transmission HART communication or Three wire analog transmission in common with power supply power supply signal common Specification of Transmission DC4 20mA linea...

Page 61: ...10 Product Specifications 10 1 List of specifications 59 Outline Drawings Adapter A NPT1 2...

Page 62: ...1a Non exciting at normal exciting at alarm or exciting at normal non exciting at alarm Contact capacity AC250V 0 5A DC30V 0 5A resistive load Transmission scheme Two wire analog transmission digital...

Page 63: ...ver Transmission scheme Two wire analog transmission digital transmission HART communication or Three wire analog transmission in common with power supply power supply signal common Specification of T...

Page 64: ...o recover Transmission scheme Two wire analog transmission digital transmission HART communication or Three wire analog transmission in common with power supply power supply signal common Specificatio...

Page 65: ...10 Product Specifications 10 1 List of specifications 63 Outline Drawings Cable gland G3 4...

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Page 67: ...power This is a function to prevent triggering alarm during that time Full scale Maximum value of the detection range Calibration Adjusts the readings to the calibration gas concentration value by usi...

Page 68: ...0 First issue 3 22 2018 1 Declaration of Conformity 12 23 2019 2 Declaration of Conformity 4 1 2020 3 Safety information Declaration of Conformity 8 1 2020 4 Safety information Declaration of Conformi...

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