G‑TECTA™ 4GP Portable Multi-Gas Detection Instrument EN Operating Manual
3 Contents Safety and Warning information 3 Instructions – specific for use in hazardous areas 3 Introduction 4 Sensors 4 Key Features 5 Software 5 Batteries 5, 6, 10, 11 Product Features 6 Switching on 6 Auto Zero 6 Switching off 7 Instrument Storage 7 Normal Operation and Confidence Signals 7 Screen Icons 7 Display Symbols 7 Alarms 8 Whilst The Linde Group has made every effort to ensure that the details and information given in both our printed and online publications
4 3. The equipment is certified for use in ambient temperatures in the range –20°C to +55°C (-4 to +131 F). The equipment should not be used outside these temperature ranges. Toxic and Oxygen sensors are not rated for continuous operation at high temperatures greater than 40°C (104°F). 4. Compliance with Essential Health and Safety Requirements has been assured by compliance with EN60079-0; EN60079-1; EN60079-11 as certified by Baseefa.
6 7 G-TECTA™ 4GP – Product Features Gas Sensors The instrument will continue through a start up sequence as shown below, this will take approximately 45 seconds. Sounder Outlet G-TECTA 4GP v1.0 Alarm LEDs CAL 5 – Sep – 2009 14 : 02 : 49 5 – Sep – 2009 14 : 02 : 49 CH4 %LEL CO ppm 0.0 0 0.0 20.9 H2S ppm O2 % G-TECTA 4GP v1.0 G-TECTA 4GP v1.
8 Alarm The TWA alarm for toxic gases will operate when the short-term (15 minute) or long-term (8 hour) time weighted average alarm levels are exceeded. WARNING TWA alarms cannot be cleared. TWA alarms are functional for toxic gas instruments only. Display Menu Options The G-TECTA™ 4GP menu is displayed when you press the mode button twice. There are up to 4 menu options including Zero the instrument home screen. To scroll between the different options, press the mode button once.
10 Alarm sounder mute: The G-TECTA™ 4GP sounder can be set to mute for level 1 alarms only; pressing the mode button during an alarm condition, will silence the sounder and stop the vibrating alarm. The alarm LEDs will continue to flash. Alarm sounder tone: Different distinctive tones can be selected for each alarm condition. This optional feature can assist the operator to ascertain the level of hazard. WARNING This feature should only be set following extensive instrument user training.
12 13 Neck Strap Attach the strap to the top connectors and place around the neck. Adjust the length of the strap until the instrument is in a comfortable working position. Chest Harness Leave the neck strap in position. Attach the other strap to the side connectors and link around the chest. Adjust the strap lengths until the instrument is in a comfortable working position.
14 How to Perform a Gas Test 1. Ensure the G-TECTA™ 4GP instrument is switched on and in normal operating mode. 2. Fit the flow cap onto the front of the sensors and attach the hose from the regulator. Attach the outlet hose to ‘vent gas away’ – do not extend this hose, restrict or allow kinks. 3. Swipe the Gas Test Key past the display, adjacent to the LED lens. The G-TECTA™ 4GP will activate the Gas Test Mode and show “TEST” and “x” next to the sensors on the display. 4.
16 PC Interface and PC Software* G-TECTA™ PC Software gives the user access to data and event log files, printing reports, reconfiguring alarm levels, instrument operation functions, and running calibrations. G-TECTA™ 4GP can be connected to a PC by using the G-TECTA™ 4GP infrared optical link. The PC requires a G-TECTA™ infrared PC interface and G-TECTA™ PC software. Set-up 1. Install G-TECTA™ PC software and G-TECTA™ infrared interface on the PC. WARNING The infrared communications are not IrDA.
18 19 G-TECTA™ 4GP Accessories G-TECTA™ 4GP Troubleshooting ASGTK G-TECTA™ SG/4G/4GP Gas Test Key Problem/Error Message Possible Cause Solution ASGTSP G-TECTA™ 4G/4GP 1m Sample probe Instrument won’t switch on Battery has no charge Re-charge or replace battery ASGTTSP G-TECTA™ 4G/4GP Telescopic sample probe Mode button released too soon Press mode button until LEDs flash ASGTPF G-TECTA™ 4G/4GP In line water trap/particulate filter inc filter element Pump not operating Instrument incorre
20 21 Sensor Limitations The sensors used in the G-TECTA™ 4GP have limitations common to all gas sensors, and users should be aware of the points listed below. The Linde Group can advise on particular situations and suggest alternative sensors if the instrument is likely to experience extreme conditions. Persistent exposure to high levels of toxic gas will shorten the life of a toxic sensor. If the high level gas is corrosive (e.g. hydrogen sulphide), damage may occur over time to metal components.
22 The Linde Group Instrumentation Warranty Gas Detection Products General The Linde Group warrants gas detectors, sensors and accessories manufactured and sold by The Linde Group to be free from defects in materials and workmanship for the periods listed in the following tables.
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