Contents CE Compliance Safety Overview Operating Instructions Turning on the Flowmeter Turning off the Flowmeter Changing Modes Flow Measurement Mode Split Measurement Mode Options Mode Settings Available Information Mode Low Power and Charging the Flowmeter Maintenance Technical Specification Operations Manual...
Low Voltage Directive Declaration of Conformity according to ISO/IEC Guide 22 and EN 45014. Carl Stuart Ltd T/A Lab Unlimited hereby declares that the GF500 Digital Gas Flowmeter conforms with the following standards and documents. Safety EN 61010-1 1993 Part 1 General Requirements...
Safety Safety Warning If the instrument is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired. The safety statements in this manual comply with the requirements of the UK Health and Safety at Work Act 1974. You must read this section to ensure the safe operation of your instrument.
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Damage of this type is not covered under warranty. Flow Sensor Do not blow into the GF500 Gas Flowmeter this can damage the flow sensor and alter the calibration. Damage to flow sensors caused by this are not covered under warranty.
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Your GF500 Gas Flowmeter must be disposed of properly according to local laws and regulations. Because it contains a battery, the GF500 Gas Flowmeter must be disposed of separately from household waste. When your GF500 Gas Flowmeter reaches its end of life, contact Lab Unlimited to find out about recycling and disposal options.
Overview Power Input Gas Inlet Gas Inlet Display Keypad GF500 Flowmeter...
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The solid-state flowmeter measures the flow of gases using a fully solid-state sensor, monitored by a microprocessor controlled system. The flowmeter can display the flow rate of up to eight gases. In addition, it can measure and display a second flow (the split flow), comparing this with the first flow and displaying the ratio of the two.
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Gas Inlet Line Connector A connector is Supplied to allow different lengths of tubing to be attached to the inlet of the GF500 Gas Flowmeter. When removing an additional length of pipe care must be taken to firmly hold the length of tubing attached to the flowmeter to prevent excessive strain on the internal connection to the flow sensor.
Operating Instructions Turning on the Flowmeter To turn on the Flowmeter press The Flowmeter will then start in standard flow mode. ml/min Split Calc Turning off the Flowmeter To turn off the Flowmeter Press and hold for 2 seconds Changing Modes To cycle through the various modes (Flow Measurement Mode, Split Calculation Mode, Settings Mode and Information Mode) press the mode button as shown below.
You can cycle through the different gases by pressing You are able to switch between ml/min and cm/sec by pressing the Enter button as shown below ml/min cm/sec Split Calc Split Calc GF500 Flowmeter...
When in cm/sec to ensure an accurate reading please ensure you have the correct column size selected in the options mode (See Page 14) Split Measurement Mode When in split flow mode you will initially see the following screen. Press Enter to Set Column Flow Split Calc...
Power Off Mins Options mode allows the user to change a number of settings for the flowmeter. The different settings can be scrolled through by pressing Each setting can be changed by scrolling through the options by pressing GF500 Flowmeter...
Settings Available Power Off Time Changes the time the flowmeter will remain on before automatically powering off. Column Diameter Allows the user to set the diameter of column they are using. This is used to calculate the column velocity in flow measurement mode.
Flowmeter to a computer with a micro USB cable. When turned on and charging, the flowmeter will display a battery symbol on the screen this will disappear when the battery is fully charged. GF500 Flowmeter...
Maintenance Provided that the cautions shown in the safety section are followed, the unit is maintenance free. Cleaning The case may be cleaned with a damp cloth. Calibration It is recommended that the instrument is re-calibrated every 12 months. Technical Specification Size 68 x 130 x 30 mm Weight...
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