biosystems ZoneGuard Reference Manual Download

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ZoneGuard

Single Channel Fixed Gas Detection System

Reference Manual

651 South Main Street
Middletown, CT 06457
Tel (860) 344-1079 (800) 711-6776
Fax (860) 344-1068
Version 2.3 30SEPT2005 p/n 13-063

Summary of Contents for ZoneGuard

Page 1: ...ZoneGuard Single Channel Fixed Gas Detection System Reference Manual 651 South Main Street Middletown CT 06457 Tel 860 344 1079 800 711 6776 Fax 860 344 1068 Version 2 3 30SEPT2005 p n 13 063...

Page 2: ...F POTENTIALLY DANGEROUS CONDITIONS IT IS ESSENTIAL THAT THE INSTRUCTIONS IN THIS MANUAL BE READ FULLY UNDERSTOOD AND FOLLOWED ZoneGuard Operation Manual Version 2 3 Part Number 13 063 Copyright 2005 b...

Page 3: ...__________________________________________8 2 3 REMOTE DETECTOR ASSEMBLIES 8 2 3 1 Standard remote detector housing __________________________________________________8 2 3 2 Explosion proof remote det...

Page 4: ...MANUAL CALIBRATION PROCEDURE 15 3 7 1 Manual Fresh air zero through keypad buttons _______________________________________15 3 7 2 Manual span calibration through keypad buttons _____________________...

Page 5: ...us readings 5 A sensor that cannot be calibrated or is found to be out of tolerance should be replaced immediately An instrument that fails calibration may not be used until testing with known concent...

Page 6: ...e and other components necessary to connect the remote detector assembly with the instrument controller are not included and must be ordered separately The ZoneGuard design includes many user selectab...

Page 7: ...uipped with toxic or combustible gas sensors are provided with two levels of gas alarm Low warning and High danger Toxic and combustible alarms are configured as ascending meaning that they are trigge...

Page 8: ...on proof versions Explosion proof version remote detector assemblies have been submitted to Underwriters Laboratories Inc for Classification per ULC as Explosion Proof for use in Class I Division 1 Gr...

Page 9: ...ate inside the controller case In the case of ZoneGuard systems with integrally mounted sensors a sensor specific amplifier board is mounted onto the relay PCB In the case of ZoneGuard systems with re...

Page 10: ...ic interference EMI the screen drain of the wire should be connected to the ground plate of the detector head long reach glands and or the screen terminals should be used for this purpose Ground loops...

Page 11: ...for one second to turn the ZoneGuard on 2 8 3 Turning the ZoneGuard off Turn the ZoneGuard off by pressing and holding the Mode button until the LCD goes blank When the button is released the LCD wil...

Page 12: ...ings A sensor that cannot be calibrated or is found to be out of tolerance should be replaced immediately An instrument that fails calibration may not be used until testing with known concentration te...

Page 13: ...ment may then be fresh air zero calibrated as discussed in section 3 6 1 3 4 Effect of contaminants on ZoneGuard sensors The atmosphere in which the ZoneGuard monitor is being used can have an effect...

Page 14: ...ses is listed in Appendix E 3 5 Functional bump test Note The functional bump test is only used on instruments equipped with a combustible gas LEL or toxic gas sensor For further details on verifying...

Page 15: ...ndicate that the ZoneGuard CANT ZERO In this case the instrument must be fresh air zeroed using the Cal button on the instrument keypad and procedures discussed in Section 3 7 1 Once the instrument ha...

Page 16: ...ation 3 7 2 Manual span calibration through keypad buttons Span calibration procedures using buttons on the instrument keypad are only necessary when the adjustment necessary to restore accuracy is ou...

Page 17: ...automatic fresh air zero procedure as discussed in Section 3 6 1 Following reinitialization of the instrument or in cases where the ZoneGuard is being used to monitor oxygen levels that are close to 0...

Page 18: ...on to turn the ZoneGuard back on 5 A screen will appear showing the first alarm point to be adjusted the Low warning level alarm set point Use the and keys to raise or lower the Low alarm set point 6...

Page 19: ...includes an Alarm Test function that can be used to automatically ramp readings throughout the full range of the sensor The Alarm Test function is used to verify alarm setpoints as well as the proper...

Page 20: ...tions used during auto calibration adjustment It is necessary to re set the calibration gas concentration stored in instrument memory before making use of a different calibration gas concentration Do...

Page 21: ...pan without saving Set default alarms Turn ZoneGuard on Press ALARM to enter Default Alarm Mode ZoneGuard will display the default alarm settings Press and hold ALARM to restore the factory default al...

Page 22: ...sulfide H2S 25 ppm in nitrogen 58 liters 54 9037 Sulfur dioxide SO2 10 ppm in nitrogen 58 liters 54 9052 Chlorine Cl2 5 ppm in nitrogen 58 liters 54 9055 Nitric oxide NO 30 ppm in nitrogen 58 liters 5...

Page 23: ...ensitivity data The table below lists the cross sensitivity of electrochemical toxic sensors used in Biosystems portable gas detectors to gases other than their target gas Depending on the nature of t...

Page 24: ...Page 23 Appendix F ZoneGuard dimensional drawings electrical schematics and wiring diagrams Dimensional drawing of ZoneGuard controller...

Page 25: ...Page 24 Dimensional drawing of ZoneGuard explosion proof remote detector assembly...

Page 26: ...Page 25 Dimensional drawing of ZoneGuard standard non explosion proof remote detector assembly...

Page 27: ...s procedures closely follow these guidelines If your operating procedures do not permit daily checking of the sensors Biosystems recommends the following procedure to establish a safe and prudent accu...

Page 28: ...nstrument is in service ToxiPro MultiPro 2 years from date of purchase ToxiLtd 2 years after activation or 2 years after the Must Be Activated By date whichever comes first Mighty Tox 90 days after ac...