Continiuous liqud level gauges
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04 05 TANK LEVEL GAUGE TLG08 For Water / Foam Tanks Operating Principle The pressure gauge is designed to display a liquid’s volume at an accuracy level of 1/8 of the tank using 9 ultra-bright LEDs. For example, when the tank level is below 1/4, the LED at 1/8 is fl ashing; when the tank level is below 1/8, the red LED at 0 turns on. As an additional option an external device (such as a buzzer or siren) can be controlled by a relay output pin on the indicator unit. The indicator is able to communicate with the other displays (Remote Indicators) via the 1-wire datalink. The unit uses a 0-400 mbar (0-5.8 PSI) temperature-compensated pressure transducer to obtain tank level information. The transducer measures the coloumn of the liquid in the tank above the opening of the elbow and provides a signal that is proportional to the volume. The complete measuring equipment TLG08 consists of the: • indicator IN08 which displays the level of the liquid, • the PT04/06 pressure transducer, • the 3-wire sensor cable with the connector plug. Wiring and Application Diagram Power supply 10 V ... 30 V DC Power consumption* approx. 3 W Alarm relay output Power supply voltage, max. 6 A Pressure range 0...400/600 mbar (0...4/6 m tank height) Level indication 9 x ultra bright LEDs Detectable substances Water, Fire-smothering foam, Oil, Gasoline,... Transducer Electrical Connection M12x1 Transducer pressure port fi tting G 1/4” with adapter G1/2” Transducer Housing Stainless steel Enclosure protection ( IEC 529) IP65 (Transducer); IP65 (Indicator-front panel) Operating temperature-indicator from -45 °C to +85 °C Dimensions of the indicator (IEC 61554) 72 x 36 x 85 mm Transducer cable 3 x 0,25/35 mm2 (chemical and oil resistant) + connector M12 Weight Transducer: 0,1 kg, Indicator: 0,1 kg * No outputs active Specifi cation

Features • Accurately and reliably measures the water or foam level in a fire truck /fire engine • 9 ultra-bright LEDs which indicate the liquid levels in the tank. The LEDs are easily readable in the dark from a distance or even in direct sunlight • Horizontal or vertical mounting design • Water and Foam displays available • Alarm relay output (6A) when the level is below 1/4 • Auto-fill and refill function (Hysteresis) • High Current MosFET outputs for large external light (Large Light Driver) - 5x40W lamps (optional) • Remote indicator which can be connected via 1-wire datalink •...