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Notice
About Manual
Rootech Inc. reserves the right to make changes in the device specifications shown in this User Guide
without notice. Rootech Inc. advises customers to obtain the latest specifications of device before giving
orders to confirm that the information being relied on by the customer is up to date.
In the absence of written agreement to the contrary, Rootech Inc. assumes no liability for Rootech Inc.
applications assistance, customer's system design, or infringement of patents or copyrights of third parties
by or arising from the use of devices described herein.
The information contained in this document is believed to be accurate at the time of publication, however,
Rootech Inc. assumes no responsibility for any errors which may appear here and reserves the right to
make changes without notice.
Limitation of Liability
Where applicable law allows and does not prohibit or restrict such limitation, Rootech, Inc's liability for
anything relating to this product shall be limited to the price paid for the product.
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Table of Contents
Related Manuals for ROOTECH Accura MD-GAS
Summary of Contents for ROOTECH Accura MD-GAS
- Page 1 Notice About Manual Rootech Inc. reserves the right to make changes in the device specifications shown in this User Guide without notice. Rootech Inc. advises customers to obtain the latest specifications of device before giving orders to confirm that the information being relied on by the customer is up to date.
- Page 2 Standard safety precautions should be followed during the installation and maintenance of the product, including removing PT fuses and shorting CT secondaries. Install the product in enclosures or a similar cabinet to prevent access to the terminal strips of the product after wiring. ⓒ 2014 Rootech Inc. All Rights Reserved Page 2...
- Page 3 Failure to properly connect the chassis ground will void the warranty of the product. About the Manual Rootech, Inc. reserves the right to make changes in the product specifications shown in this User Guide without prior notice. We recommend that customers should obtain the latest information on product specifications and the manual before making orders.
- Page 4 Rootech will decide at its discretion whether to repair or replace it or give a refund for the product for when the warranty period for the product expired or issues related to the product are not applicable for warranty terms and conditions.
- Page 5 The original purchaser should recognize that such defects and failures may cause inaccuracies or malfunctions. No agency, corporate entity, or employee of Rootech or other companies has authority to amend, modify or extend the terms and conditions of this warranty in any way without express written authorization from Rootech Inc.
- Page 6 Revision History Accura MD-GAS User Guide Revision History The following versions of Accura MD-GAS User Guide have been released. Revision Date Description 1.00 August 7, 2014 Initial release 1.10 September 15, 2014 Added content on environmental conditions, including temperature and...
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Page 7: Table Of Contents
Dimensions ........................................9 Installation ..........................................10 Panel Mounting ......................................11 DIN-Rail Mounting ..................................... 11 Wiring ..........................................12 Chapter 2 Accura MD-GAS Operation/Setup ......................... 13 Power Supply .......................................... 13 Functions ..........................................13 Gas Measurement and Event Detection ............................13 Digital Output ....................................... 14 Operation Mode ...................................... - Page 8 Figures Accura MD-GAS User Guide Figures Fig 1.1 Accura MD-GAS Components ..............................9 Fig 1.2 Accura MD-GAS Front ................................. 9 Fig 1.3 Accura MD-GAS Rear ................................... 9 Fig 1.4 Accura MD-GAS Side ................................10 Fig 1.5 Panel Mounting .................................... 11 Fig 1.6 DIN-Rail Mounting ..................................
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Page 9: Chapter 1 Installation And Wiring
Chapter 1 Installation and Wiring Before Installation Components Fig 1.1 Accura MD-GAS Components Mounting wings L/S Accura MD-GAS Two mounting screws Dimensions Fig 1.2 Accura MD-GAS Front Fig 1.3 Accura MD-GAS Rear ⓒ 2014 Rootech Inc. All Rights Reserved Page 9... -
Page 10: Installation
- When it is exposed to highly corrosive materials such as H2S, SOx, Cl2, HCl, etc. - When it is contaminated by alkaline metals (e.g. salt water spray) - When it is in contact with water ⓒ 2014 Rootech Inc. All Rights Reserved Page 10... -
Page 11: Panel Mounting
Panel Mounting Fig 1.5 Panel Mounting Please observe the following precautions for the installation location of Accura MD-GAS module. 1) Determine where to install the module considering the flow path of combustible gases. 2) If there is no specific gas flow path, install it in the upper part of the installation space, considering the rise of gas. -
Page 12: Wiring
① Connect the external 9 – 24 V DC power supply to the power input ports [+/-]. ② Connect cables to the DO ports. Fig 1.7 Power Supply and DO Wiring ⓒ 2014 Rootech Inc. All Rights Reserved Page 12... -
Page 13: Chapter 2 Accura Md-Gas Operation/Setup
Accura MD-GAS User Guide Chapter 2 Accura MD-GAS Operation/Setup Chapter 2 Accura MD-GAS Operation/Setup Fig 2.1 Accura MD-GAS Front View Power Supply Item Description Connector type Terminal block[+/-] Wire specification 1.5 – 3.5 mm (16 – 12 AWG) Power supply voltage DC voltage 9 –... -
Page 14: Digital Output
AC 250 V 5 A, DC 110 V 0.3 A, DC 30 V 5 A 1. A latch maintains the current output status, and a periodic pulse occurs repeatedly at the configured time interval. Pulse period and pulse on-time can be set. ⓒ 2014 Rootech Inc. All Rights Reserved Page 14... -
Page 15: Operation Mode
When an event occurs, the maximum ppm value of gas and the event LED blink. Users can reset the event mode by long pressing the SET button, and the screen returns to the display mode. Setup Mode Configures events and the DO ⓒ 2014 Rootech Inc. All Rights Reserved Page 15... -
Page 16: Button Operation
If there is no button operation for 10 seconds in the setup mode, the screen automatically returns to the display mode. If there is no button operation for 25 seconds in the edit mode, it automatically returns to the display mode. ⓒ 2014 Rootech Inc. All Rights Reserved Page 16... -
Page 17: Lcd Screen
LCD Screen Display Mode Accura MD-GAS module displays the measured PPM value and the output status of the DO, and the screens appear in the following sequence. If you short press the SET button in the display mode, the screen switches to the setup mode. -
Page 18: Event Mode
If there is no button operation for 10 seconds in the setup mode, the screen automatically returns to the display mode. If there is no button operation for 25 seconds in the edit mode, it automatically returns to the display mode. ⓒ 2014 Rootech Inc. All Rights Reserved Page 18... - Page 19 The definite time for event detection can be set only when the event settings are On. Time Delay for an Over Event [d].[d] 0.5 – 5.0 sec / 0.5 sec step default 1.0 sec 1. d → decimal number ⓒ 2014 Rootech Inc. All Rights Reserved Page 19...
- Page 20 DO Polarity nrM[Normal: default] Initial contact status is open. When an event occurs, the contact gets closed. rEu[Reverse] Initial contact status is closed. When an event occurs, the contact gets open. ⓒ 2014 Rootech Inc. All Rights Reserved Page 20...
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Page 21: Fig 2.5 Led/Do Operation [Button Input After The End Event In Do Button-Clear Configuration]
Fig 2.6 LED/DO Operation [Button Input After the End Event in DO Self-Clear Configuration] with hysteresis threshold start event end event Gas Over Start Event End Event Button Clear Button clear Self clear DO (latch) DO (pulse) ⓒ 2014 Rootech Inc. All Rights Reserved Page 21... -
Page 22: Led Display
The Event LED and DO can be reset by long-pressing the SET button in the event mode. If the DO reset mode is set to self-clear, the DO is automatically reset when an end event occurs. ⓒ 2014 Rootech Inc. All Rights Reserved Page 22... -
Page 23: Appendix A Specifications
-20 – 60 C (-4 – 140 ℉) Storage temperature -40 – 85 C (-40 – 185 ℉) Operating humidity 5 – 95 % (non-condensing) 1. Compliant with the UL61010-1 standard ⓒ 2014 Rootech Inc. All Rights Reserved Page 23... -
Page 24: Appendix B Standards
Power frequency magnetic field immunity IEC 61000-4-11 Voltage dips, short interruptions and voltage variations immunity Certification UL 61010-1 EN 50270:2015/AC:2016, EN 61000-6-3: 2007+A1: 2011 KN 61000-6-3, KN 61000-6-1 General Warranty period 2 years ⓒ 2014 Rootech Inc. All Rights Reserved Page 24... -
Page 25: Appendix C Ordering Information
Accura MD-GAS User Guide Appendix C Ordering Information Appendix C Ordering Information Model Accura MD - GAS ⓒ 2014 Rootech Inc. All Rights Reserved Page 25... - Page 26 Accura 2300/2350, Accura 2300S/2350, Accura 3000, Accura 3300S/3300, Accura 3500S/3500, Accura 3550S/3550, Accura 5500, and Accura 7500 are trademarks of Rootech Inc. Contact us for detailed product specifications and ordering information. Information contained herein is subject to change without notice. CopyrightⓒRootech Inc. Printed In Korea...
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