GasTech D-Guard2S User manual

t +61 8 6108 0000 e [email protected] w gastech.com

t +61 8 6108 0000 e info@gastech.com w gastech.com

Digital Gas Detector with

Sounder Strobe

OPERATOR’S MANUAL

D-Guard2

This Page Left Intentionally Blank

MANUAL ONVENTIONS.................................................................................................................................. 7

WARNINGS, AUTIONS AND NOTES ....................................................................................................... 7

LIMITATIONS OF USE .............................................................................................................................. 8

PRODU T MARKINGS ............................................................................................................................. 9

RE EIVING AND STORAGE .................................................................................................................... 10

4.1.

ECEIVING

................................................................................................................................................ 10

4.2.

NSPECTION

.............................................................................................................................................. 10

4.3.

TORAGE

.................................................................................................................................................. 10

GASTE H AUSTRALIA ONTA T DETAILS .............................................................................................. 10

GENERAL SAFETY PRA TI ES ................................................................................................................ 11

6.1.

ELEVANT

ERSONNEL

................................................................................................................................ 11

6.2.

AFETY

OMMUNICATION

........................................................................................................................... 11

6.3.

AFE

SE OF

QUIPMENT

............................................................................................................................ 11

6.4.

ODIFICATIONS TO

QUIPMENT

................................................................................................................... 11

6.5.

QUIPMENT

NOWLEDGE

............................................................................................................................ 11

INTRODU TION .................................................................................................................................... 12

7.1.

URPOSE AND

ONTENTS

ANUAL

................................................................................................... 12

7.2.

RODUCT

DENTIFICATION AND

YPE

............................................................................................................. 12

7.3.

ONTENTS

D-G

UARD

-2

ACKAGE

............................................................................................................ 13

........................................................................................................................................................................... 13

PRODU T DES RIPTION ........................................................................................................................ 14

8.1.

RODUCT

UNCTION

.................................................................................................................................. 14

8.2.

ESCRIPTION

PERATION

....................................................................................................................... 14

INSTALLATION ...................................................................................................................................... 15

9.1.

NSTALLATION

ONSIDERATIONS

................................................................................................................... 15

9.2.

ENERAL

NSTALLATION

RACTICES

............................................................................................................... 16

9.3.

ETECTOR

IMENSIONS AND

OUNTING

RIENTATION

................................................................................... 16

9.4.

NSTALLATION

ONSIDERATIONS

. .................................................................................................................. 17

9.4.1

Power supplies ................................................................................................................................... 17

9.4.2

Typical Connection to a power supply and controller ........................................................................ 17

9.4.3

Maintaining Correct Operating Conditions. ....................................................................................... 17

9.5.

OUNTING T E

NCLOSURE

........................................................................................................................ 18

9.5.1

Mounting Sur aces and Environment ................................................................................................ 18

9.5.2

Detector Location .............................................................................................................................. 19

9.6.

LECTRICAL

ONNECTIONS

.......................................................................................................................... 20

9.6.1

Field Terminal Access ......................................................................................................................... 20

9.6.2

Connection Details ............................................................................................................................. 21

9.6.3

Cable Entry and Connecting ............................................................................................................... 21

9.6.4

Conductor Preparation ...................................................................................................................... 22

9.6.5

Installation Cable Choice ................................................................................................................... 22

9.6.6

Cable Gland........................................................................................................................................ 23

9.6.7

Re itting The Detector Cover ............................................................................................................. 23

10.

OMMISSIONING ................................................................................................................................. 24

10.1.

NSTALLATION

ERIFICATION

........................................................................................................................ 24

10.2.

ERFORMANCE

ECKS

.............................................................................................................................. 25

10.3.

QUIPMENT

EQUIRED

ERFORMANCE

ECKS

........................................................................................ 25

10.4.

UMP

EST

ONDITIONS

............................................................................................................................. 26

10.5.

UMP

EST

ROCEDURE

............................................................................................................................. 26

11.

DETE TOR OPERATING SYSTEM ............................................................................................................ 28

11.1.

ETECTOR

OWER

................................................................................................................................ 28

D-Guard2

11.2.

OME

CREEN

EATURES

............................................................................................................................ 29

11.2.1

User Menu status ........................................................................................................................... 29

11.3.

ONFIGURATION AND

ALIBRATION

ENU

AVIGATION

YSTEM

....................................................................... 30

11.3.1

So t-Key Functions and Icons .......................................................................................................... 30

11.3.2

Quick-Nav Function ........................................................................................................................ 31

11.3.3

Entering The Function Screens........................................................................................................ 31

12.

ALIBRATION ........................................................................................................................................ 32

12.1.

ALIBRATE

? ..................................................................................................................................... 32

12.2.

REPARING FOR CALIBRATION

....................................................................................................................... 32

12.3.

ERO

ALIBRATION

.................................................................................................................................... 33

12.3.1

Auto-Zero Calibration ..................................................................................................................... 33

12.3.2

Saving the Zero Calibration Value .................................................................................................. 34

12.3.3

Manual Zero Calibration ................................................................................................................. 34

12.3.4

Notes On Zero Calibration .............................................................................................................. 34

12.4.

PAN CALIBRATION

..................................................................................................................................... 34

12.4.1

Auto Span Calibration ..................................................................................................................... 35

12.4.2

Saving Auto-Span Calibration Values ............................................................................................. 36

12.4.3

Manual Span Calibration ................................................................................................................ 36

12.4.4

Per orming a Manual Span Calibration .......................................................................................... 36

12.4.5

Saving Manual Span Calibrations ................................................................................................... 36

12.4.6

Isolating the Detector During Span Calibration .............................................................................. 36

12.5.

URRENT

OOP

UTPUT

ALIBRATION

.......................................................................................................... 37

12.5.1

Setting the 4mA Output Current ..................................................................................................... 37

12.5.2

Setting the 20mA output Current ................................................................................................... 37

12.6.

YNAMIC

ESPONSE

IME

EST

UNCTION

..................................................................................................... 38

12.6.1

Running the DRT Checks ................................................................................................................. 38

13.

DETE TOR ONFIGURATION ................................................................................................................. 39

13.1.

ENSOR

ONFIGURATIONS

........................................................................................................................... 39

13.1.1

Set Guard Band ............................................................................................................................... 39

13.1.2

Set Measurement Full-Scale ........................................................................................................... 40

13.1.3

Detector Type ................................................................................................................................. 40

13.1.4

Setting Span Gas Concentration ..................................................................................................... 41

13.2.

LARM

ONFIGURATION

............................................................................................................................. 41

13.2.1

Making Alarm Con iguration Changes (Alarm 1 shown) ................................................................ 42

13.2.2

Alarm 1 Trip Level ........................................................................................................................... 42

13.2.3

Alarm 1 Hysteresis .......................................................................................................................... 42

13.2.4

Alarm 1 Trip Direction .................................................................................................................... 43

13.2.5

Alarm 1 Normal State ..................................................................................................................... 43

13.2.6

Alarm 1 Latching ............................................................................................................................ 43

13.2.7

Alarm 2 Current Settings Screen ..................................................................................................... 44

13.3.

IGITAL

ATA

ONFIGURATION

.................................................................................................................... 44

13.3.1

HART Setup Main Screen ................................................................................................................ 44

13.3.2

Turning HART Communications On or OFF ..................................................................................... 44

13.3.3

HART Tag data ................................................................................................................................ 45

13.3.4

HART Tag data – ixed loop mode .................................................................................................. 45

13.4.

YSTEM

ONFIGURATION

............................................................................................................................ 45

13.4.1

SYSTEM Setup Main Screen ............................................................................................................ 45

13.4.2

Turning Detector Isolation On or OFF ............................................................................................. 45

13.4.3

Internal Temperature Sensor .......................................................................................................... 46

13.4.4

Display Colour Invert ...................................................................................................................... 46

13.4.5

Sensor Temperature Compensation ............................................................................................... 46

13.4.6

Set Sensor Gain ............................................................................................................................................ 46

13.4.7

Set Menu Passcode ......................................................................................................................... 47

14.

DETE TOR MESSAGES AND WARNING STATES ..................................................................................... 47

14.1.

UNNING

NFORMATION AND

AULT

ESSAGES

.............................................................................................. 47

14.1.1

HART Communications Active ........................................................................................................ 47

D-Guard2

14.1.2

Detector Fault - Detector Over-Range ............................................................................................ 47

14.1.3

Detector Fault - Detector Under-Range .......................................................................................... 47

14.1.4

Detector Fault – Upper Operating Temperature ............................................................................ 48

14.1.5

Detector Fault – Lower Operating Temperature ............................................................................ 48

14.1.6

Detector Fault – Sensor Presence Failure ....................................................................................... 48

14.1.7

Detector Fault – Low Sensor Sensitivity .......................................................................................... 48

14.2.

AULT

NFORMATION

CREENS

....................................................................................................... 48

14.2.1

Detector Fault Log .......................................................................................................................... 48

14.2.2

Detector In ormation Screen .......................................................................................................... 48

14.2.3

Resetting the Detector Life Counter ............................................................................................................ 48

14.2.4

Calibration Fault ............................................................................................................................. 49

14.2.5

Internal Parameter Storage Fault ................................................................................................... 49

15.

ALARM INDI ATION.............................................................................................................................. 49

15.1.1

Warn Alarm Indication ................................................................................................................... 49

15.1.2

Danger Alarm Indication ................................................................................................................ 49

15.1.3

Latched Alarm Indication................................................................................................................ 49

15.1.4

Resetting From Alarm State ........................................................................................................... 49

15.1.5

Temporarily Silencing An Alarm ..................................................................................................... 50

15.1.6

Clearing An Alarm State ................................................................................................................. 50

16.

ONNE TING A HART FIELD OMMUNI ATOR ..................................................................................... 51

17.

DETE TOR MAINTENAN E .................................................................................................................... 52

17.1.

ISUAL

NSPECTION

.................................................................................................................................... 52

17.2.

ANDS

-O

ETAILED

)

NSPECTIONS

............................................................................................................ 52

17.3.

AS SENSING CELL REPLACEMENT

.................................................................................................................. 53

17.3.1

Removing the Detector Main Board ............................................................................................... 53

17.3.2

Replacing the Sensor ...................................................................................................................... 53

17.4.

ENERAL

ETECTOR

EPAIR

........................................................................................................................ 54

17.5.

ISPOSAL OF

D-G

UARD

OMPONENTS

......................................................................................................... 54

18.

APPENDIX A: ......................................................................................................................................... 55

18.1.

UTPUT

URRENT

IGNAL

OTAL

OOP

ESISTANCE VS

OWER

UPPLY

OLTAGE

............................................... 55

18.1.1

Loop Resistance - D-Guard

With Backlight Disabled - loop at 22mA ............................................ 55

18.1.2

Loop Resistance - D-Guard

With Backlight Enabled - loop at 22mA ............................................. 55

19.

APPENDIX B: ......................................................................................................................................... 56

19.1.

ELAY

OARD AND

OUNDER

PTIONS

. ......................................................................................................... 56

19.1.1

Relay Board Functionality ............................................................................................................... 56

19.1.2

Table o Functions (identi ied by silk screen legend on relay board and photo annotations) ........ 57

19.2.

ELAY

OARD

ONNECTIONS

....................................................................................................................... 58

19.2.1

Current Loop Connection Scheme ................................................................................................... 58

19.2.2

Stand-Alone Connection Scheme .................................................................................................... 58

20.

APPENDIX : ......................................................................................................................................... 59

20.1.

ISABLING T E

ISPLAY

ACKLIG T

.............................................................................................................. 59

21.

APPENDIX D: ......................................................................................................................................... 60

21.1.

C EMICAL

COMPATIBILITY ................................................................................................................... 60

22.

APPENDIX E: ......................................................................................................................................... 61

22.1.

ROSS

ENSITIVITY

OXIC

ENSORS

............................................................................................................. 61

22.2.

ROSS

ENSITIVITY

NFRA

-R

ENSORS

...................................................................................................... 61

23.

APPENDIX F: ......................................................................................................................................... 62

23.1.

NVIRONMENTAL

FFECTS ON

ETECTOR

ERFORMANCE

.................................................................................. 62

23.2.

EMPERATURE

.......................................................................................................................................... 62

23.3.

RESSURE

................................................................................................................................................. 62

23.4.

UMIDITY

................................................................................................................................................ 62

D-Guard2

24.

APPENDIX G: ......................................................................................................................................... 63

24.1.

YSTEM

ENU

.................................................................................................................................. 63

25.

APPENDIX H: ......................................................................................................................................... 64

25.1.

ERFORMANCE

PECIFICATIONS

.................................................................................................................... 64

25.1.1

General Speci ications .................................................................................................................... 64

25.1.2

Methane Detector Speci ications ................................................................................................... 64

25.1.3

Carbon Dioxide Detector Speci ications .......................................................................................... 65

25.1.4

Electro-Chemical Detector Speci ications ....................................................................................... 65

25.1.5

Mechanical & Environmental Speci ications .................................................................................. 65

D-Guard2

PROPRIETARY STATEMENT

Gastech owns proprietary rights in the information disclosed within. By receiving this document, the recipient

agrees that neither this document nor the information disclosed within nor any part shall be reproduced or

transferred to other documents or used or disclosed to others for manufacturing or for any other purpose except

as specifically authorised in writing by Gastech.

Information contained in this document is protected by copyright. No part of this document may be

photocopied, reproduced, or translated to another program or system without prior written authorisation from

Gastech.

TRADEMARK STATEMENT

Protected through use and/or registration in the United States and many foreign countries are the trademarks

and service marks of Gastech. The use of the ® symbol indicates registration in the United States only and the

“

” is in Australia; registrations may not have been issued at present in other countries. All other product names

and logos are trademarks of their respective owners.

DISCLAIMER

Under no circumstances will Gastech be liable for any claims, losses, or damages resulting from, or arising out

of, the repair of, or modification to the equipment by a party other than Gastech or its authorised service

representatives, or by operation or use of the equipment other than in accordance with the printed instructions

provided by Gastech or if the equipment has been improperly maintained or subject to neglect or accident. Any

of the foregoing will void the warranty.

REVISIONS TO MANUAL

While every effort has been made to assure the accuracy and clarity of this document, Gastech assumes no

liability resulting from any omissions in this document, or from misuse of the information obtained herein. The

information in this document has been carefully checked and is believed to be entirely reliable with all of the

necessary information included. Gastech reserves the right to make changes to any products described herein

for the purposes of improved reliability, functionality, or design, and reserves the right to revise this document

and make changes to its content as may become necessary with no obligation to notify any persons of revisions

or changes.

D-Guard2

SERVICE POLICY

Gastech maintains an instrument service facility at the factory as well as authorised service facilities around the

world. Should your instrument require service, you may contact us toll free at 1800 999 902 within Australia

only or 61-8-6108-0000, or visit our website www.gastech.com for authorised service locations.

For non-warranty repairs, you will need to provide a purchase order number. If you need to set a limit to the

repairs costs, state a “Not to Exceed” figure. If you need a quotation before you can authorise repair costs, so

state, but understand this will incur additional costs and may delay processing of the repair.

If you wish to set a limit to the authorised repair cost, state a “not to exceed” figure. Gastech’s policy is to

perform all needed repairs to restore the instrument to full operating condition, including reactivation or

replacement of all out-of-warranty electrochemical cells.

You may send the unit, freight prepaid, to: Gastech Pty Ltd, 24 Baretta Rd, Wangara, Western Australia WA 6065.

Attn.: Service Department. Enclose the copy of your contact details. Pack the instrument and all its accessories

(preferably in its original packing) and any special instructions. Repairs are warranted for 90 days from the date

of shipment. Sensors have individual warranties.

Always include your address, purchase order number, shipping and billing information, and a description of the

defect as you perceive it. If this is the first time you are dealing directly with the factory, you will be asked to

provide credit references, prepay, or authorise COD shipment.

NOTE: Gastech assumes no liability for work performed by unauthorised service facilities.

D-Guard2

WARRANTY STATEMENT

1. Consumers have the benefit of conditions and warranties implied by the Trade Practices Act 1974 (TPA) and

similar provisions of State and Territory enactments and nothing in these conditions is intended to exclude,

restrict or modify any statutory obligation of GASTEC PTY LTD (Company) if that cannot lawfully be

effected.

2. This warranty relates only to Equipment manufactured and services supplied by the Company, its related

corporations and subsidiaries. Equipment or any part thereof which is returned to the Company,

transportation prepaid, within 15 months from the date of dispatch from the Company’s premises or 12

months from the date of shipment to the ultimate user (whichever occurs first) and is found by the

Company, after examination, to be defective in workmanship or materials, will be either repaired or

replaced as determined by the Company, free of charge. The terms of this paragraph apply unless stated

otherwise in this instruction manual.

3. This warranty does not apply to:

a) replacement or repairs which are required as a results of improper installation, misuse,

maladjustment modification or lack of routine maintenance by others;

b) items subject to deterioration or consumption in normal service, that is, those which must be

cleaned, repaired or replaced routinely such as (but not limited to) lamps, bulbs and fuses, pump

diaphragms and valves, absorbent cartridges, filter elements and batteries; or

c) goods, materials or parts supplied or manufactured by unrelated third parties and provided to the

Purchaser at the specific request of the Purchaser and such goods, materials or parts will be

repaired or replaced only to the extent of the original suppliers warranty.

4. Should the Company be liable for breach of a condition or warranty (other than the pursuant to section 69

of the TPA) implied by Division 2 of Part V of the Act (other than that implied by section 69 of the TPA) the

liability of the Company for such breach shall, subject to section 68A(2) of the TPA, be limited to one of the

following as determined by the Company.

a) the replacement of the Equipment or the supply of equivalent Equipment-,

b) the payment of the cost of replacing the Equipment or of acquiring equivalent Equipment.

5. Subject to Clauses 2 and 4 and any legislation to the contrary:

a) representatives and agreements not expressly contained herein shall not be binding upon the

Company as conditions, warranties or representations; all such conditions, warranties, and

representations on the part of the Company, whether express or implied, statutory or otherwise,

whether collateral or antecedent or otherwise are hereby expressly negatived and excluded;

b) the Company shall be under no liability to the Purchaser for any loss (including but not limited to

loss of profits and consequential loss) or for damage to persons or property or for death or injury

caused by any act or omission (including negligent acts or omissions) of the Company or the

Company’s agents, wherever occurring, arising from the subject matter of this agreement;

c) the Purchaser shall indemnify the Company against any claims made against the Company by any

third party in respect of any such loss, damage, death or injury as is set out in sub-paragraph b)

hereof; the Purchaser further agrees to indemnify the Company against all losses and expenses

which the Company may suffer or incur due to the failure of the Purchaser fully to observe its

obligations under this contract; and

d) no warranty is given and no responsibility is accepted by the Company to ensure the Equipment

supplied complies with any statutory requirements relating to the marketing of goods. Compliance

with such legislation shall be the sole responsibility of the Purchaser.

e) the Company specifically denies any liability for the overall performance of any plant or the results

of any process with which the Equipment is integrated.

D-Guard2

Manual onventions

D-Guard

is designed to detect, depending upon which sensor type is fitted, flammable gases and vapours,

oxygen concentration or toxic gases. The detector is intended to signal one or more warnings before gas

concentrations reach dangerous or harmful levels.

In order to ensure that the detector's intended function will operate as designed, it is essential that the

information and instructions presented in this manual are read and understood prior to installing, using or

maintaining the equipment. In particular, a thorough understanding of the information relating to

configuration, operation, calibration, and maintenance is essential before using D-Guard

To aid with the process of bringing attention to key points, graphical notices are used in this manual. These

notices are graded based upon the consequence of ignoring or incorrectly applying the information given.

Warning. Significant risk to health and safety with the possibility of serious injury or death.

aution. Possibility of unsafe operation of D-Guard

and connected equipment.

Warranty of D-Guard

and connected equipment may be invalidated.

Note. Additional information is provided to assist with understanding of detector

operation, configuration, calibration or maintenance.

1. Warnings, autions and Notes

For safety reasons, D-Guard

must be installed, operated and serviced only by competent and appropriately

trained personnel. Reading and understand this instruction manual completely is essential before installing,

operating or servicing this equipment. Failure to install or operate this instrument in accordance with

instructions contained in this manual may result in invalidation of the conditions of warranty and additionally

create hazardous operating conditions.

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