Petrotech Dial type Level gauge suitable for liquids in underground and partially underground tanks. Analog Indicator – It consists of a float, clamped to a SS wire rope, the other end of which is wound  on a drum,carrying constant torque spring housed in WP IP66 enclosure, to maintain the rope under tension. Due to change in liquid level, the float rises or falls and rotates the drum. This motion is transmitted through a gear mechanism to a pointer moving over a calibrated dial to display level in meters. Two adjustable switches with or without 4-20mA transmitter can be provided optionally.

Digital Indicator – The construction is similar to analog except, constant torque spring is housed in  Ex-d enclosure and the gear motion induces a change in variable voltage signal to give 4-20 mA  output & digital level indication in %, mm, cm or mtrs.