TR30240 Series
Resistive output float level transmitter
The vertically-mounted TR30240 is a reed switch type transmitter designed to provide fuel level output to gages in marine and stationary engine tank applications. Its two-wire resistive probe delivers a proportional 30-240 Ohm output with alternate resistance ranges available. Constructed in 316 stainless steel or brass materials, the TR30240 can be paired with a stainless steel or Buna-N float to accommodate various temperature and pressure needs. Additional high and low-level switch points, construction materials and probe lengths up to 120″ are also possible. Custom resistance curves for linear and nonlinear tanks can be provided.
Technology
Float level transmitter
All float-operated liquid level switches operate on the buoyancy principle: “the buoyant force acting on an object is equal to the mass of liquid displaced by the object”. As a result, the partially submerged float moves with the level of the liquid in the vessel.
The TR420 Continuous Output Transmitter employs a series of magnetic reed switches and corresponding resistors inside the vertical sensor stem that are actuated by an internal magnet within the moving float. Multiple segments are plugged together in order to achieve a probe at the desired length.
The resultant probe segments form a resistive daisy chain (series circuit). The segments are configured as a variable resistor where the magnetic reed switches are the resistance values in the circuit. As each switch closes, the resistances vary in proportion to the corresponding switch position. The signal is electronically conditioned through the transmitter control board to provide the proportional output in mA or volts DC (depending on the model selected).
The TR420 Continuous Output Transmitter employs a series of magnetic reed switches and corresponding resistors inside the vertical sensor stem that are actuated by an internal magnet within the moving float. Multiple segments are plugged together in order to achieve a probe at the desired length.
The resultant probe segments form a resistive daisy chain (series circuit). The segments are configured as a variable resistor where the magnetic reed switches are the resistance values in the circuit. As each switch closes, the resistances vary in proportion to the corresponding switch position. The signal is electronically conditioned through the transmitter control board to provide the proportional output in mA or volts DC (depending on the model selected).
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Features
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Electrical
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Applications
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Specifications
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Downloads
- Two-Wire Resistive Probe
- Probe Lengths Up to 10 Feet
- No Calibration Required
- Optional Resistive Ranges Available
Storage Temperature: -50º to +180º F (-45º to +82º C)
Humidity: 0 to 99%, Non-Condensing
- Stationary Engine Fuel Tanks
- Marine Equipment
- Agricultural Equipment
| TR30240 | BRASS | BUNA-N | -40º TO +180º F (-40º TO +82º C) | -40º TO +175º F (-40º TO +80º C) | 150 PSIG (10.3 BAR) | 0.77 |
| TR30240 | 316 Stainless Steel | 316 Stainless Steel | -40º to +300º F (-40º to +148.9º C) | -40º to +175º F (-40º to +80º C) | 750 PSIG (51.7 bar) | 0.8 |
| TR30240 | 316 Stainless Steel | 316 Stainless Steel | -40º to +300º F (-40º to +148.9º C) | -40º to +175º F (-40º to +80º C) | 750 PSIG (51.7 bar) | 0.9 |
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Product Catalogs
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TR30240 Product Catalog
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