Assessments - 2, GPA: 4.5
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ELECTRICAL SAFETY This equipment is powered by a special battery, which may be recharged using the charger provided. The charger is designed to plug into a standard 230V 13A power socket. To recharge the unit please see “MAINTAINING POWER SOURCES” Never use the charger or charge the battery in a potentially explosive atmosphere. Keep the equipment dry - using electrical equipment in very damp or wet conditions can be dangerous. To reduce the risk of electric shock, use a suitable RCD (Residual Current Device) available from your local branch of HSS Hire. Keep the charger and its power supply cable out of harm’s way. Never carry or pull the charger by its power supply cable. If the charger fails, or if its power supply cable or plug gets damaged, return it. Never attempt to repair it yourself. Locking Lip Rear Locking Catch Charger Socket OPERATING INSTRUCTIONS This is a “soft” zero. Any adjustments only remain in force whilst the instrument is switched on. 1. Oxygen 2. Methane 3. Carbon Monoxide 4. Hydrogen Sulphide 2 1 3 4 5 7 6 9 8 1. Buttons 2. Aperture 3. Cartridge and Filter Cover 4. Audible Aperture 5. Grille Cover Screw 6. Certification Label 7. Battery Covers 8. Data Connector 9. Tool (yellow) Moves up through menu screens, and used to increase values (yellow) Moves down through menu screens, and used to decrease values (green) Used as ‘OK’ in menus. Accepts alarms, and resets peek values (red) On/Off button. Also used as ‘change’ in menus Selecting Location / Operator To change the location and/or operator press the button and the display will show the current location. Press the and buttons to cycle through the list. Once the correct location has been found then press , and follow the same procedure to select the operator. Fresh Air Auto Zeroing Sensor If enabled the instrument will prompt if you wish to zero the sensor in fresh air, to adjust for any natural drift that may have occurred. If the button is pressed the instrument will then ask the user to ensure that it is being zeroed in fresh, uncontaminated air. If the button is pressed the instrument will zero the sensors automatically, and display wether the procedure was successful. The Oxygen reading will be adjust to 20.9%v/v - the other sensor readings will be adjust to 0ppm and 0%lel appropriately. If the button is pressed instead the Peak Screen ( ) This symbol is displayed when the instrument is displaying the peak readings for the sensors, i.e. the highest readings seen since the instrument was switched on or since they were reset. This is useful for pre-entry checks for confined space entry. These readings can be reset by pressing the button whilst this display is shown. This screen will alternate with a screen showing the minimum value of oxygen. In this case the is replaced by . STEL Screen ( ) This symbol is displayed when the instrument is displaying the STEL readings for the toxic sensors. The STEL is a time weighted average, measure over a 15 minute reference period. It is used to monitor exposure to toxic gases in line with current regulations and/or legislation. Until 15 minutes has elapsed these are projected values. LTEL Screen ( ) This symbol is displayed when the instrument is displaying the LTEL (TWA) reading for toxic sensors. The LTEL is a time weighted average, measured over an 8 hour reference period. It is used to monitor exposure to toxic gases in line with current regulations and/or legislation. Until the gas detector has been monitoring continuously for 8 hours these are projected values. Confidence Signal To ensure correct operation, the instrument monitors itself and will confirm correct operation by giving an audible and green visual confidence signal once every 30 seconds. There is a configurable option to silence the audible confidence signal, but the visual confidence signal will continue to operate. If the instrument is in a low battery condition, the confidence signal will occur twice every 30 seconds. Menu Pressing the button will provide access to menu. Note: Calibration is not permitted until the sensor/s have warmed up and been self-tested. If you access the user menu before this period has elapsed the Calibration option will not be available. Flammable Calibration Operator Instrument Safelink Language User Menu Flammable The instrument is limited only to Methane. If you require any other gases than Methane please contact HSS Hire. Operator This allows a new operator and/or location to be selected without restarting the instrument. Instrument Details These are the alarm level setting for oxygen and flammable sensors. There are no associated STEL or LTEL alarms for this sensors. indicates a rising alarm indicates a falling alarm. This shows the alarm level for the toxic sensors. Alarm Condition There are two modes of alarm: latching and non-latching. However, the display will give the same alarm indication: An alarm symbol will appear in the relevant section of the display. The alarm symbol contains a nu...
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