G/LL65 Liquid Level Contents Gauge

Vertically mounted tank spiral driven tank contents gauge with electrical outputs for continuous level monitoring and level alarm switch.

The G/LL65 vertical spiral gauge is a mechanically operated liquid level gauge with a local display and two electrical outputs. Suitable for connection to a typical controller or remote level indicator the outputs are; a variable resistance proportionate to the liquid level and a volt-free switch to trigger an alarm when the liquid reaches a prescribed level.

To avoid a potential leak path, the gauge features a magnetic coupling between the float driven spiral and the level indicator.

Documents
Data Sheet

Additional Information
Product Inquiry

Liquid types

Liquids compatible with the construction materials, typically fuels, oils and water.

Dimensions

Length: Min. 150 mm, Max. 1200 mm.
Thread: 1½” BSPT or 1½” NPT.
Weight: 0.36 Kg (Gauge Length, A = 600 mm)

Materials

Header: 30% Glass Filled Nylon 66.
Guide Rail: Anodised 6005-T5 Aluminium.
End Cap: 30% Glass Filled Nylon 66.
End Cap Screw: A2 Stainless Steel.
Spiral: 316 Stainless Steel.
Float: Polypropylene.
Dial Capsule: Polycarbonate.
Leads: XLPE Sheathed.

Electrical

Supply Voltage: 9-32 VDC.
Supply Current: 15 mA @ 12 VDC.
Supply Protection: Over voltage 80 VDC for 2 minutes. Reverse polarity.
Connections: 4-off 500 mm long 18AWG leads:

Red: Supply, V+
Black: Ground (0V)
Green: Signal, Ω
White: Switch to ground

Resistive Output: Between 3-750 Ω or 750-3 Ω.
Resolution 3 Ω. Max. dissipation 250 mW.
Alarm Output: Switch to ground. Max 100 mA.
High or low level between 10% and 90% of gauge length.
Default setting: low level alarm at 12% of gauge length,
Minimum 10 mm travel from end-stops.

Environmental Ratings

Designed to meet:
Ingress: IP67.
Operating Temp: -20 ºC to 80 ºC.
Max tank pressure: 1 bar.
EMC: Type approval in accordance with EN ISO 13766:2006.
Vibration: 1.88 Grms BS EN 60068-2-4:1995.
Shock: 500 m·s-2, 11 ms, BS EN 60068-2-27:1993.

Options

Connector: The G/LL65 can be supplied with any suitable style of plug or receptacle.