REDARC TLSEN225 tank level sensor 225mm225mm stainless steel resistive tank level sensor for TVMS Rogue

Overview

The TLSEN225 is the longest probe in REDARC's tank level sensor range, at 225mm (±2mm). Like the shorter versions it uses a float and reed contacts to produce a 240–33Ω resistive signal from empty to full, for one of the two analogue inputs of the TVMS Rogue (TVMS1240) and level display in the RedVision app or on the DISP4300 screen. Built from SU304 stainless steel with FDA-approved materials, it fits a standard SAE 5-hole flange and comes with gasket and M5 fixing screws.

• Probe lengths 175mm, 200mm or 225mm (±2mm)
• Resistive output 240–33Ω from empty to full
• SU304 stainless steel, FDA-approved materials for drinking water
• Standard SAE 5-hole flange with gasket and fasteners
• Tested for the TVMS Rogue (TVMS1240) analogue inputs
• 2-year REDARC warranty

How it works

Each TLSEN sensor is a vertical probe with a float that carries a magnet. As the liquid level changes, the float slides along the stem and the magnetic field switches reed contacts inside it, so the sensor presents a resistance that falls from 240Ω with the tank empty to 33Ω when it is full. The TVMS Rogue reads that resistance on one of its analogue inputs and converts it into a tank level shown in the RedVision app and on the DISP4300 display.

Key features

The three models differ only in probe length: 175mm, 200mm and 225mm, each with a ±2mm tolerance and a 460mm (±20mm) lead. The body is SU304 stainless steel and REDARC states that the materials are FDA approved, so the sensors can be used in drinking water tanks as well as grey water and fuel tanks. Each box contains the sensor, a flange gasket and five M5×16mm mounting fasteners.

Installation and compatibility

The sensor mounts through the top of the tank with a standard SAE 5-hole flange: the mounting guide shows a Ø36–42mm opening and five M5 holes on a Ø54mm circle, sealed by the supplied gasket. The two wires go to a numbered yellow and green pair on the TVMS Rogue input loom (inputs A1 or A2), and the unused red and black wires of that pair must be insulated individually.

The TVMS Rogue has two analogue sensor inputs, so up to two TLSEN sensors can be connected to one Rogue. Its inputs accept 240–33Ω and 0–190Ω resistive senders and 0–5V or 0.5–4.5V voltage senders, with multi-point calibration of up to 10 points. REDARC recommends installation by a qualified auto electrician.

Monitoring and settings

After wiring, the input is set up as a tank level channel in the REDARC Configurator app, which is used only for installation and initial set-up. Calibration points let the installer match the reading to the shape of the tank. Day-to-day, the level is read in the RedVision user app for iOS and Android over Bluetooth, or on a RedVision DISP4300 display connected to the system.

Questions and answers