This Senior TwinSite® dial is a magnetically-driven, variable-resistance sender with potted lead wires. Senders are utilized on mobile applications where direct reading plus an electrical signal to a remote receiver are required. Models are available to fit all Rochester Senior® liquid-level gauges equipped with our large Alnico drive magnet including the 8600 series gauges.
This 2-wire TwinSite® sender employs a laser trimmed, heavy duty resistance element. The TwinSite® is capable of generating accurate and reliable signals to remote receivers in most common resistance ranges. The standard model of this TwinSite® comes with the premium harsh environment construction at the price of the previous standard unit.
WARNING! This sensor is not to be used as the primary means of determining high or low fuel condition. It must not be used in the absence of redundant systems in critical applications where there may be significant safety risk or financial exposure in the event of fuel overfill or fuel exhaustion condition. This sensor is not to be used for tank filling.
Features
- The dedicated ground path terminal wire eliminates the major reliability fault found in most variable resistance sender designs
- Redundant wiper and collector contacts are used to improve reliability and reduce contact noise - In testing, this unit has greatly surpassed the competitive units in reliability and durability
- The TwinSite® also provides the easiest to read local indication of any TwinSite® sender Rochester has produced. The bright, user friendly dial face is divided into fractional units
- The case is hermetically sealed by ultrasonic heating to melt and fuse the case into one solid piece - This keeps weather out, ensuring "no-fog" readability while greatly extending mechanical life
- The seal is a high reliability, no-gasket design. The plastic case is capable of withstanding vibration and shock that would render comparable metal designs useless
- The plastic case is far more resistant to corrosion than any metal-cased version and is capable of withstanding broad variations in temperature
- The plastic lens (and the rest of the case) is a special, UV stabilized material
- Electrical connections are sealed with multiple epoxy chambers - The connecting wires are also sealed behind this epoxy barrier - This sealing process prevents sparks or other damage due to both galvanic and electrolytic corrosion, as well as, providing an impervious barrier to road salt
Specifications
- Range: 240-30 Ohm
- Operating Temperature Range: -40°F to 158°F (-40°C to 70°C)
- Power: 0.5 watts maximum
- Accuracy: ±5% for all types. (Float gauge errors not included)
- Hysteresis: Less than 5% typical
- Repeatability: ±2%
- Resolution: 2% typical
- Resistance Change with Temperature: 0 to ±100° PPM/C.
- Vibration: Tested for mobile applications, including off highway construction equipment
- Connector Options: Packard, Sure-seal, Deutsch, 0.25 in. male tab
Construction
- Crystal & Case: Polycarbonate or polyamide
- Pointer: Acetal
- Magnet: Neodymium
- Contact and Contact Spring: Proprietary multi-fingered construction
- Resistance Element: Proprietary conductive ink
- Dial: Painted aluminum
Downloads
Senior TwinSite Dial for 8600 Gauges Installation Guide (PDF Download)
