WEBTEC DHT401 Manuel D'utilisation D'origine page 10

Digital display
Selector switch
Change settings indicated by the ^ on the display - using the °C/°F and UNITS buttons.
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The FAST button changes the screen refresh from 1 to 3 times per second.
Tachometer input - Connection socket for the optional infra-red phototachometer.
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External flow - Connection socket for optional second 'LT' series flow meter, to measure a
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second flow and temperature.
Selector switch - Turn the switch to select the required function.
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OFF - Switches the tester off and disconnects the battery.
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TACH - RPM is indicated on the display.
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INT FLOW - Display flow and temperature measured by the internal flow meter.
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EXT FLOW - Display flow and temperature measured by the optional external flow
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meter.
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DHT 2 Series Digital Hydraulic Tester
Pressure gauge
Tachometer External
input flow
Battery cover