Rochester Gauges Senior TwinSite Dial for 8600 Gauges – Range: 240-30 Ohm

Description

Rochester Gauges Senior TwinSite Dial Sender
The Senior TwinSite® Dial Sender is a magnetically-driven, variable-resistance sensor designed for mobile fuel and liquid storage applications demanding both local gauge readout and remote-level monitoring. This 2-wire sender is compatible with Rochester Senior® liquid-level gauges equipped with a large Alnico drive magnet, including the 8600 Series.
Featuring a laser-trimmed, heavy-duty resistance element, the TwinSite® provides accurate and reliable remote signals in a variety of common resistance ranges. The standard version is built for durability and is now equipped with premium harsh-environment construction, all without a price increase over previous models.
WARNING: This sensor must not be used as the sole method for determining high or low fuel levels in critical applications. It is not intended for tank filling, or situations where fuel overfill or exhaustion may pose significant safety or financial risks. Always use with a redundant monitoring system.

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
Part Number: 540S02543IP

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)